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HomeMy WebLinkAbout1.0 Application-Part1Index Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 Topic General Application Materials Preapplication Conference Summary Project Description Vicinity Map Site Plan Grading and Drainage Plan Impact Analysis Traffic Study Water Supply and Distribution Plan Wastewater Management and System Plan Standards Analysis Waiver Requests Stormwater Management Permit (SWMP is electronic only) Reclamation Plan SPCC Plan Adjacent Land Owners and Mineral Rights Owners Information NRCS Soils Report Geologic and Soils Hazards Report Wildlife and Vegetation Impact Analysis Air Quality Permit Access and Roadways Emergency Response Plan (electronic only) Weed Management Plan Pipeline Information Noise Assessment Figures NTC Responses 1 General Application Materials Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 Garfield County Building and Planning Department 108 8th Street, Suite 401 Glenwood Springs, CO 81601 (970) 945-8212 www.garfield-county.com LAND USE CHANGE PERMIT APPLICATION FORM TYPE OF APPLICATION • Administrative Review ■ Location and Extent Review = Limited Impact Review • Development in Floodplain • Major Impact Review • Designation of Flood Fringe/Floodway • Amendments to an Approved LUCP ■ Rezoning ■ LIR ■ MIR ■ SUP • Minor Temporary Housing Facility • PUD Zoning • Vacation of a County Road/Public ROW • Land Use Code Text Amendment • Pipeline Development • Appeal of Administrative Interpretation • Comprehensive Plan Amendment, Minor • 1041 Regulations • Comprehensive Plan Amendment, Major • Variance INVOLVED PARTIES Owner/Applicant Name: Marathon Oil Company, et al. (See Application Attachment A) Phone: ( 970 ) 244-5735 Mailing Address: 743 Horizon Ct. City: Grand JunctionState: CO Zip Code: 81506 E-mail: erward@marathonoil.com Representative (Authorization Required) Name: Olsson Associates - Jeff Hofman, Lorne Prescott phone: ( 970 ) 263-7800 Mailing Address: 760 Horizon Drive, Suite 102 City: Grand Junction State: CO Zip Code: 81506 E-mail:jhofman@olssonassociates.com, Iprescott@olssonassociates.com PROJECT NAME AND LOCATION Project Name: Marathon Oil Company 32C Water Impoundment Facility - Centralized E & P Waste Management Facility Assessor's Parcel Number: 2135 321 00 009 Physical/Street Address: Legal Description: SE 1/4 of the SW 1/4 of Section 32, T5S, R96W, 6th PM Zone District: Resource Land (RL) Plateau Property Size (acres): 880 Project Description Existing Use: The existing tacitiIy rs a tempiarary water storage impoundment c rrently permitted under COGCC Rutes 335 8. 903 a win a Form 15 The lacitrty is used to store produced water from the natural gas operations in the general area. The facility currently has a double liner, leak detection equipment, is enclosed with a wildlife proof fence and is netted to protect birds Proposed Use (From Use Table 3-503): Water Impoundment Description of Project: The current faratity was originally permitted with a COGCC Form 15. This allows temporary water Impoundments. More permanent facilihes are required to have a COGCC Fot-m 28 approval and a Garfield Courtly Limited Impact Review Change of Land Use Permit approval The land is lolnity owned by Mar when Oil Company, Berry Petroleum, PGR Partners 3 Waptti 011 & Gas but the facllity will tie safely owned and Operated by Maralnam. This LIR application is to permit this facility for Ionci-Germ use. REQUEST FOR WAIVERS Submission Requirements IN The Applicant requesting a Waiver of Submission Requirements per Section 4-202- List: Section: See Waiver Requests Section Section: Section: Section: Waiver of Standards li The Applicant is requesting a Waiver of Standards per Section 4-117. List: Section: See Waiver Requests Section Section: Section: Section: 1 have read the statements above and have provided the required attached information which is correct and accurate to the best of my knowledge. ,ualz 0,4( ¶3o/ 0 Signature of Property Owner Date OFFICIAL USE ONLY File Number: Fee Paid: $ pot: Garfield County PAYMENT AGREEMENT FORM GARFIELD COUNTY ("COUNTY") and Property Owner ("APPLICANT") Marathon Oil Company agree as follows: The Applicant has submitted to the County an application for the following Project: 32C Water Impoundment Facility 2. The Applicant understands and agrees that Garfield County Resolution No. 98-09, as amended, establishes a fee schedule for each type application, and the guidelines for the administration of the fee structure. 3. The Applicant and the County agree that because of the size, nature or scope of the Fl proposed project, It IS at possible at this time to ascertain the full extent of the costs involved in processing the application. The Applicant agrees to make payment of the Base Fee, established for the Project, and to thereafter permit additional costs to be billed to the Applicant. The Applicant agrees to make additional payments upon notification by the County, when they are necessary, as costs are incurred. 4. The Base Fee shall be in addition to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board of County Commissioners for the consideration of an application or additional County staff time or expense not covered by the Base Fee. If actual recorded costs exceed the initial Base Fee, the Applicant shall pay additional billings to the County to reimburse the County for the processing of the Project. The Applicant acknowledges that all billing shall be paid prior to the final consideration by the County of any Land Use Change or Division of Land. I hereby agree to pay all fees related to this appSication: Owner/Applicant Name: Marathon Oil Company Mailing Address: 743 Horizon Ct. City: Grand Junction Phone: ( 974 ) 244-5735 l mall: erward@marathonoil.conrl State: CO. Zip Code. 81506 (Signature) (Date) Application Attachment A Land Owners Marathon Oil Company 743 Horizon Ct. Grand Junction, CO. 81506 Berry Petroleum 1999 Broadway, #3700 Denver, CO. 80202 PGR Partners, LLC 370 17th Street, Suite 4300 Denver, CO. 80202 Wapiti Oil & Gas, LLC 800 Gessner, Suite 700 Houston, TX. 77024 Eric Ward Operations Manager Marathon Oil Company 743 Horizon Court, Suite 220 Grand Junction, CO 81506 Telephone: (970) 244-5735 Fax (970) 245-6287 Erward a'lmarathonorf corn Board of County Commissioners Garfield County, Colorado 108 8th Street Glenwood Springs, CO. 81601 11 \A1 Marathon011 RE: Land Use Change Permits Submitted to Garfield County, Colorado on behalf of Marathon Oil Company Commissioners, Please accept Jeff Hofrnan, Lorne Prescott and Tilda Evans of Olsson Associates as authorized representatives for Marathon Oil Company (Marathon) and to act on behalf of Marathon in all matters related to land use change permit applications submitted to Garfield County. Sincerely, 2L Eric Ward Piceance Operations Manager 1111 h'i i I'PiKi711,VP. WIR1KI011C«M,11 11 1 Reception#: 840962 09!1912013 03.47 10 PPI Jean glberico 1 of 2 Rec Fee $16 00 Doc Fee.0 00 GARFIELD COUNTY CO IIMITED POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS: THAT MARATHON OIL COMPANY (the "Company"), a corporation duly organized and existing under and by the virtue of the laws of the State of Ohio, having its principal office in the City of Houston, Harris County, Texas, did make, constitute and appoint, effective September 9, 2013, and does hereby make, constitute and appoint Eric Ward, Operations Manager, Piceance Operations, as its true and lawful Attorney -in -Fact for the limited purposes set forth below, giving and granting unto its said Attorney -in -Fact full power and authority to execute for it and in its name, place and stead, and for its sole and exclusive benefit, and not on behalf of any other person in whole or in part: 1. (a) Applications for special use permits, conditional use permits, administrative permits, and land use change permits; (b) Applications for and Acceptances of Right -Of -Way Grants or Temporary Use Permits for pipeline and other rights-of-way covering lands owned by the United States or any of the States of the United States or any political subdivision or divisions thereof; and Right -Of -Way Agreements from individuals and corporations and any other legal entities; (c) Requests for renewals thereof; (d) Assignments, Applications for Approval of Assignments and Requests for Approval of Assignments thereof; and (e) Any other instruments required, necessary or permitted in connection therewith, including, but not limited to, agreements to sell or purchase rights-of-way and amendments, extensions, renewals and ratifications of rights-of-way. This Limited Power of Attorney shall continue to remain in full force and effect until revoked by instrument duly executed. ININ WITNES'S WHEREOF, Xd......apon ,Oil l7............. 1..... ,.....sed this Limited n,......_ ,_r 7, 111`IL'OJ VY 11L1I.LA/1', fllalall11J11 VII VVl1ljla11,y 11x.7 4aµ47('.11 11110 1�411111;U EUVCJ of Attorney to be executed this it -711 day of , 20 1 MARATHON OIL COMPANY Gretchen 14atkins Vice President, North American Production Operations ATTEST: Yvonne R. Kunetka, Assistant Secretary 1111r.iiipeomiliNfirI+otI 'li10.Gw' IreiLIN 11 III Receptionkt: 840962 09/19/2013 03:47 10 PM Jean Rlberice 2 of 2 Rec Fee $16 00 Doc Fee. 0 00 GARFIELD COUNTY CO ACKNOWLEDGMENT OF GRETCHEN WATKINS STATE OF TEXAS § COUNTY OF HARRIS § BEFORE ME, a Notary Public in and for said County and State, on this day personally appeared Gretchen Watkins, known to me to be the person whose name is subscribed to the foregoing instrument and known to me to be Vice President, North America Production Operations, of Marathon Oil Company, an Ohio corporation, who executed the foregoing instrument and who, being first duly sworn, acknowledged to me the execution of the foregoing instrument in the name of and upon behalf of said corporation as such officer; that the same is his free act and deed as such officer and the free corporate act and deed of said corporation for the uses and purposes therein expressed; that he was authorized thereunto by its Board of Directors. IN TESTIMONY THEREOF, I have hereunto subscribed my name and affixed my official seal at Houston, Texas, this iimLday of 5 Q1 J bt;L, 20 _. NotaO • Publi in and for the State of Texas My commission expires:_ CAROLYN a TELLO 1 ,-I kW Commission Expires WWI 10, 2015 J +h•Or4 2. WAPITI QIL, LLC, September 25, 2012 Wapiti Oil and Gas, L.L.C. and PGR Partners, LLC authorizes Marathon Oil Company to submit all applicable permit applications for the proposed Marathon Pond 32C Centralized E&P Waste Management Facility. Sincerely, Robert W. Kirkland Senior Vice President 800 Gessner, Suite 700, Houston Texas 77024. 713.365.8500 • www.wapitienergy.com ■�I! h'�''� � I ��� � I'��i�'f. �1� « 'f�4"�1�1'y� "� 1111 Reception#; 806138 08104!2011 04:21:49 PM Jean Rlberico 1 e1 1 Rec. Fee $11 CO Doc Fee.0.00 GARFIELD COUNTY CO STATEMENT OF AUTHORITY Pursuant to C.R.S. §38-30-172, the undersigned executes this Statelrent of Authority on behalf of Wapiti Gil & C s, ITC a Limited Liability Company (corporation, limited liability company, general partnership, registered limited liability partnership, registered limited liability limited partnership, limited partnership association, government agency, trust or other), an entity other than an individual, capable of holding title to real property (the "Entity"), and states as follows: The name of the Entity is Wapiti Gil & Gas, JJC and is formed under the laws of Delaware The mailing address for the Entity is SX) Gessner, Suite 700 Houston, Texas 77024 The name and/or position of the person authorized to execute instruments conveying, encumbering, or otherwise affecting title to real property on behalf of the Entity is Bart Agee or Robert W. Kirkland The limitations upon the authority of the person named above or holding the position described above to bind the Entity are as follows: None (if no ' 1.mitutionj•, insert "1ont;") Other matters concerning the manner in which the Entity deals with any interest in real property are: (if no other matter, leave :;his section blank) EXECUTED this 2nd dry of August 2 011 Signature: Name (typed or printed: Robert W Kirkland Title (if any) : Senior Vice President STATE OF Texas )ss. COUNTY OF Harris The foregoing instrumont was acknowledged before me this Arg is , 2011 by Robert W'. Kirkland �naappitti Ui1 & Gas, LLL , a Delaware J.imited day of be''a'f of 05/09 Witness my hand and official seal. my commission expires; 05-20-2014 [SEAL] 5VLV1A e. DAVIS Notary Public. State of Texas My Commission Expires May 20, 2014 Ar • (rctar. '� IC) 1111 kr♦117101t1,11s11111 Reception#: 806139 08/04/2011 04!21:49 PM ,lean Plberico 1 of 1 Rec Fee•$11 00 Doc Fee:0 00 GARFIELD COUNTY CO STATEMENT OF AUTHORITY Pursuant to C_R.S. §38-30-172, the undersigned executes this Statement of Authority on behalf of PGlt Partners, TTI: a Limited JAability Canny (corporation, limit:ed liability company, general partnership, registered limited liability partnership, registered limited liability limited partnership, limited partnership association, government agency, trust or other), an entity other than ari individual, capable of holding title to real property (the "Entity"), and states as follows: The name of the Entity is POZPmicnm7s,LLC and is formed under the laws of Colorado The mailing address for the Entity is $00 Gessner, Suite 700 Houston, Texas 77024 The name and/or position of the person authorized to execute instruments conveying, encumbering, or otherwise affecting title to real property on behalf of the Entity is Bart Agee or Robert W. Kirkland The limitations upon the authority of the person named above or holding the position described above to bind. the Entity are as follows: None (if no ' .'t't,.ti.ons, inner_ :one") Other matters concerning the manner in which the Entity deals with any interest in real property are: (if no other matter, leave this section blank) EXECJTED tai2mi day 4f August24 11 Signature: Name(typed or printed: Title (if any): STATE OF Texas )SS. COUNTY OF Harris Robert. W. Kirkland Senior Vice President The foregoing instrument was acknoert Wged beforenme this all day of August , 20 by ;,-.p�erLLC , a Colorado Limited LibiE5• u _y 05/09 on bf``'3 ` of Witness my hand and official seal. My commission expires: 05-20-2014 [SEAT,] SYIVIA B. DAVIS Notefv Public. `tate of Texas My t;,,mmissson Expires Moy 20.201 4 Notary P blic) ll� November 25"', 2013 Mr. Fred Jarman Garfield County Community Development Department 108 8` Street, Suite 401 Glenwood Springs, CO 81601 Berry Petroleum Company 1999 Broadway St., Suite 3700 Denver, CO 80202 Ph: (3O3) 825-3344 Fax: 13431825-3350 wwK,brr .caam RE: Authorization to Permit. Dear Mr. Jarman, Berry Petroleum Company authorizes Marathon Oil Company (Marathon) to submit all applicable permit applications for the proposed Marathon 32C Centralized E & P Waste Management Facility. Please contact me if you have any questions Sincerely, Bryan Burns Environmental Specialist Berry Petroleum Company 303-999-4245 bob @ bry.com 1111 In MIAMI( Mt Itlafrii'i r?! 10 11111 Reception*: 825142 t0/ 4/2O12 02:52:29 PM Jean Alberico 1 of 1 Ren Fee:$11.00 Doc Fen :0.03 GARFIELO COUNTY CO Garfield County STATEMENT OF AUTHORITY Pursuant to C.R.S. §38-30-172, the undersigned executes this Statement of Authority on behalf of Berry Petroleum Company a Corporation (corporation, limited liability company, general partnership, registered limited liability partnership, registered limited liability limited partnership, limited partnership association, government agency, trust or other), an entity other than an individual, capable of holding title to real property (the "Entity"), and states as follows: The name of the Entity is Berry Petroleum Company and is formed under the laws of Delaware The mailing address for the Entity is 1909 Broadway, Suite 3700 Denver, CO 90202 The name and/or position of the person authorized to execute instruments conveying, encumbering, or otherwise affecting title to real property on behalf of the Entity is $ryas Bums The limitations upon the authority of the person named above or holding the position described above to bind the Entity are as follows (if no limitations, insert "None"): Bryan Burns may submit Garfield County Permit Applications on behalf of Berry Petroleum Company Other matters concerning the manner in which the Entity deals with any interest in real property are (if no other matter, leave this section blank): EXECUTED this 4 day of September Signature: Name (printed): Leorge Ciotti Title (if any): Vice President, Rocky Mountain Region 2012 STATE OF Colorado )SS. COUNTY OF .)'eruor -The foregoing instrument was acknowledged before me this "1" day of Cf.))4•1 der , 2 I ?. by C:- rc CAa 4-S t. on behalf of ita+err-..� Q. ,* -1-1- , a Witness my hand and official seal I My commission expires: $ F -ad' `4 . JJ 'r A' �p � Axe., (Date) (NotaryPublic) [SEAL] i3t, t '�L 1 O\OLSSON ASSOCIATES DEEDS & OWNERSHIP MARATHON OIL COMPANY 32C PRODUCED WATER POND Ownership of the property containing the 32C Produced Water Pond is demonstrated by the following documents: • Thomas Latham (Grantor) to Berry Petroleum (Grantee) Deed dated November 13, 2006 • Karen Lee Latham and Ginger Latham (Grantor) to Berry Petroleum (Grantee) Deed dated November 13, 2006 • Marathon Surface Sharing Agreement dated June 26, 2007 • Berry (Grantor) to Marathon (Grantee) Deed dated February 15, 2008 760 Horizon Road, Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com WArm recorded ream to: JS6ttah A S1.wrm: e.q WQLL,AND & Iihk'1, LLP' T' fl, 6ca aNia Lan -am. ecii 10203 11111111Illl1%11111111111111111% 11111863 11 \\I11111 tl1\'III 7of3 1 of 3 R 16 De 0 12[.46 GPKFIELO COUryTt' CO SPECIAL WARRANT% DEED T111S DEED, made thio l 3 1ilayafNovmrtber, utxr, berwernThaniaa F. iAthens ofthe County ie1 Mese, SLraG of Colorado, Knmlar rod !terry Petroleum Company, ■ Delaware corporation *nicer k;ga1 address is 91-O 170 Swat, Seat MOD, L+enret, COI orado11cLITf,ofthcCath sod. County o Dover, State tafCol Olivia, I tee; W Erni '..}:5'SETH, The: the granlnr, for and lIt consideration of the sum o(Ona Million TWO Hw'.dred Pwr'crn Thousand Sewal Itundred E:gi+ly Dollars ($I,2I4,7$ti.OP), the receipt .nn3 suiUciency or which is hereby acknowledged, hos granted, bargained, raid ami conveyea'., and a^, brae resents duet ,Rant, hargarl, Relit con -Tey and local -inn unto the 9granniet1 allc£eaaers errd assigns. forever, ell the rpt property, together with inrprcavernents. rfarsy, aorsate, lying and bang in to County afCiarrr]d, Stale of Colorado, described as fallow"' Nlofthis inlereato1Uraal-Li nnr.beingnwrdwldedonenhaJTimere.% i.% and m the reel property dexria ,I on Exhibit A, 'niched berate and by "his referetwa, pork a pan hereof els° 1:150w11 by gree: and numbs,' as: vErsni rand TOGE"!19I%R with elk and "tegafur lhelnerod8Rtnents and appurtenances thereto beierrgias, err in anywise appeftai na et g, and Lite ns. eraudn anal IEVer"tinns, rrrnatndrr and remainder—a, rents, raau es and profits thereof; and all the airline, rphl, title, inures[, claire and demand ullaurretier of the pannlar, rubs. in law or equity, al, In end re the above boa tiimd premises, wii1 the herodtlaraetts and sopurianan os, SUBJECT T U rhe Permitted kaeeptiays ret fora: cut Exhibit 8, attached r a❑ al.dby tier[ reference made u pan herrn, TU HAVE AND TO HOLD the acid presnisat abase bargained and dorteribecd with the aplrmtenencts, vino the trrW'Jec, Iu aercesK041 and atrsryu forever Tac grantor, for !limpet; bis heirs and rational repregsnlalivcs or nuc ache, does covenant and alysce that he "'tall and will WARRANT AND FOKEVFR DERNI) the sbovL' bargained premier s In the quint end peso: able parie5-3mital'the grattIee.. iia eueeesaun end aalig,n", agatntt 11i and evcrypersers et persom claiming the whole or any put thereof; by, Ilsmugit aw winner the granny RESERVING unto canter a nonpaaclusive casmsa0tO ' l crag owing) rise catalog two - Jt rends yea :rig the falbwrng:ande:Section 295}4'hS %.WYSE%,Seer.rrt32NL+YNE'A, and Swoon J3: N'V SSW%, SWY.SW' ,, all to T wnotup S South, age 96 West ethic d" P-41„ Courtly of Garfield, State of Cal oriole., for purpeues of [".}guar and agree, In the adierent property currently owned by gamier 11 do"cnboll aa: Seeman 1, Late 9 ural 16 and Seaton 2Lois J 1, 12, 13, 14 and N 1iSE'.:; all in Township 6 Sortie, Range 97 W eat of the b s P.M.. cleanly of Garfield, Stela of Ceartlda ft1le "Retained Property"); m connection with the telidential, sooting, or narrational sae of the Retuned Property by Use owner thereof Commix shall have the r,gEI Ia relocate the metes road used by gnaw el any time, n Ian[ as the relocated eeersi mad provides rrasen.ebly equivalent access to the Retained Prcpert}. IM W ITNIISS WHEREOF', rho imam has cxecultd Chia decd on Tire date ars fug h abs ere. STATE OF t.'ULORADO J 5 I COUNTY OF GARFIF ■ Thomas Lathan The foregoing rrutrursrnt witsuchnow]adged heroin nib on this t 3 day of Novettlsa,2606, by Thateai F. Latham. allot official teal.[-i—^!`ti.i.,1_,1,41a,k,a4.411 DF. I'ti,}t 44rmrpfiPTOP a pireg_akZ11 QC\0yOT tFY i', i TE (p Ir'')L' 1it, . r-. my t:Larprrine'a1 • Noun PuS2iL(.._,_ 1111V1i 1!111 i 112 8 t 1 J i1li8118113 1lMP188l5l942 111A!ill Ili Sf1VPf 2 n1 3 R 16 08 D 121.48 GARFIELD COUNTY CO EXIet131.I "A' racer! 1 fintrooltiolSom Range 96 West°silke P Ai Section 29: S+h Ski [160 a omi Socboo 32: NE14 NEbt NW`A, AS% SW'4. SLY. SW t4, W+5 NEN (put of) Tax Partti Na 21353210'0709 1560 mote or kill Prrel 2 1 rrr rxstlip 5. South. Ranste 96 West arta 6* PM. Sacaon 32: SEY. Sccbor' 33. SW'I. (Tetwttmng pare ot) las Parcel No. 2135321000091320 actca1 I^�rCcl 3 Township h South. Rat= 97 Wcst of the fe" P. M. Season I Lots 10,1 1, 12, 15, 17, 13, 19, 22, 21 and `4 (part ol)'Tax Parcel No. 216901 I000l 1 1314 711 actc+r nsnrc or leas) NH in rhe County of Garfield, Colorado, 1'400 ecns1 l 1111 �l lllll Ilfflf l 1111! 1111111 Ili11111i1111111111 1111 7lslhfw st; 15✓:a01t 064P af953 P983 n t1L5Dvfff Sof 3R 16.001) 12S 48 MELD Corm co Exhibit K 1 Rights at ida.ms or palms a paoseation in 1 strum by Ilw pretax tsstntta 2 Easements. or clams of easements, teen stnw.e try the public records. Dtu:zpances., conflicts in boundary :ecce, bostays m area, ttaeraachmenta, and say facia, *Arch a a/n eel survey end etispection c f the pronnrs would /isolate, and which are rr i shown by der public records 6. This paragraph rnrcrnio^arly deiet d 5 This parrplraph ,nterrtrnnally deleted Taxes and Issessmentn for 2006 and subsryucnt years. a Iron not yet due or payable This paragraph intentionally delved, 11 Any unci all water rights, claims, ur title to wilier', whether err not the mantra excepted Are thuwn by Ihr Public record. y Right of way for ditches or canals constructed by the aulitarily ufllta United Sialcs, as reserved in Untied States Patent recorded January 16.192i ill Onrtk 117 at Paso 424 and roseryarion of all oil and gas. together with rho right to prompter for. mins and romovo the snme pursuant w Ike provisionas and limitations of the Act of July 11, 1916 in lard Patens. and any and all ,nitrcita therein or assignmcr:ts thereof 10 RIM of w►ay for ditches or urinals eur:strucIed b7 Ibe autliortiy of the United States. as reserved .a United Smite Parent recorded May l4. 1940 re giant 14a at Page 41 i and 1eaer tunas t,f atl coal tad other nilnern!s, together with the Light b ptospeC' M. minx Arid rcnsovc lac same pursuant W ;he proms ons and imitations of tic Aar of Vecember 19,141E iniad Pried. and an. and atl tnlemaas tressle. yr assignnrcsits acme 11 R iglsl of w Ay fur drrncos or =nib crmI1rucled by Jho authority df rite L nited Stain, as marred in United Sates Patent re -corded January 29. 1943 in Book 201 at Page 131 tad rex-ninon of all coil ted other ,incra1; scarier vats the right W ptospoct poi, mato and remove Mc %araC pursuant :o the pun rsians and lim tai ioe. of rhe Act of December 29, I914 in aid Patent. tad any and .1Y ini atests therein or /sawn/icings Il,rrot tlefetrstionn. conditions and stipulations Contained in United Stales Pales, No 1431391 recorded Apel 10. t9Sl in Hook I57 r Pale 543 including. bul nul IItalted to ibo following. • That ilio gnat heresy made ra mann:led in ib cittariot tlmlta to rho boundarissuf tae mild mining prvmisos, and In any reirs or !odes arguing 01 other rock to place hearing gold, sliver, cinnabar. lead, tin. copper and other vnluahlc dcpermit which mar herr been diaeovcrcd within said limits snbscquera to and which wore trot known to cast on July 12, 1949 • flits should any vein or hide of gnarl, or oilier mark In piles basing gold. *liver, cinnabar, lead. lm, copperur other valuable Scpo,yits, he Claw aid or known to troll w1'htn the tbovc- dcacnbcd premises at said lair -named do ted, ilia same it e.tprensly e+tccptod and alienated from these presents. Riehl of way for ditches or canals conslrucIetl by the authority of the L'ntlsnl 5tatai 11 Re*cneuan oral' mroerala, nether wish 1 C right to prospect far. mine And remove the *aeric ay reserved by Redd Rancher in Warranty Deed rccmlod December 20, 1.463 ria Book SSS at Pagc }, and soy mud all :mermen Meseta as ssstppern4ma 11yiaiaf 14 Conveyance ro Ruta Laibarn of undivided otic -half interwar ,n and mai mineral* owned by Latham hunch. in Warranty Deet recorded Au1%,at 20 19a' to [lona 719 et Page S 10. and arty trent ad: irterestb Menlo or assignments thereof I S Last of a narbt of access to and from On subject property 1 111111 11111 1111111 IIIA 11 1111 1111111 hili IIII IIII 711207 11(1512006 03:46P 51563 P554 T ALSOORF 1 of 2 R 16.88, C 121.48 GARFIELD COUNTY CO Mos .- u,drd misers 111.: etSi6oth A 91w•rar, HOLLAND 1 NAPM. LLP P.O Box tia9 perm. Co 11n731, P£R3O. AL F.E.PRESENTAT1Yi:'SDEED TH1S p51 D A dared tteree abr:t PM. and is made between karts Les L.Mrant sad Grater Latham., at Co -Personal Rtprcralcatives of the relate of Chanes 1inrrey Latham, dent:mod, "Grantor" and Derry Petroleum Company. a Delaware corporation. 'Y'mntca" whose legal address ie 95O 17" SL:ent, Bode :4G), Denise. Colorado 11O21)2, of the C+iy mid County of Denver, Si de t+f Colorado. WHEREAS, the decedent dyed pr Aprii 15, :tlr]a and Grantor tam duly •pootrtcd Co- Persaaal Rcprapital a prsaid WOW by tie pixlrct Courtin and for tete County of A4s. Slab a! Colorado, Probate No t1 PR 1Id, on the dsle of AFib 28, 2574, and is now qualified and erring in wd capoeky, NOW :HERdBORE, pursuant In tare gasmen epufvrcd upon Camden by the Colorado Prohare Cndc, Cmnmr dues hereby sell and convey u:ito Grantee, fur and in considerstioi of One MAlror, two Hundred rotates". Thousand Seven Waked Eighty Dollen (31.214,750.051, Inc following described rah property wale in the County of Garfield, Stoic of Colnrsdo. AI! of the rneereu of the Grump, being m undrwrd ed sine -half inicrat in and to the real prepeny dumbed on Lathib,t A, aturhed hereto and by this rehrrrrcr !nate a Neal hereof Aro known by morel adflreas as' vacant txnd and easelsors achtduic et parcel number: Set Exhibit .fl, icier1 %1 basin and by oris re (=oar reads a port honor With all eppµrlonarreea, S1fBJN+CT TOO the Permuted Etceptiona out forth an E hihit rttrshe 1 hereto and by that reftrtarec rade a part hereof NJE1SCRVING unto Grantor a arm-ercclosive eaument over and screws those estatdg :aro- uack reads rinsing the folios -an hide_ S+smpn 29. SW'rSSV, SEMS&Y., SK1ion 32' 145./.14. ■nd Section 37: NW S4S W rrr5 W'%S W Y., rel in Township 3 Saud,, Range '/et West it f 'IL e E'plot_ County or Garfield, State of Colueado; for purpose of rope= and CIRM la the srryrrnr r e.y ry cv+rorily utrticd try Grantor wairo et deatsiaed N 50.1iw, i Cola 9 end 16. end Simon 2 Lott 1 I, 17, 11, 14 acid N tSE'/.; .11 rel Township 6 South, Range 97 West of the ,' P.tit , County of Carried, Mate of Caktarlo dila "Retuned Property - I. ih uw,ecuocc . nn the ri tdent:al, tanctiing, us recreabunel me of the Retained Property by tate owner thereof, Cramp shall have the ny!rl pr reVCILc the arrear road eyed by Grantor is any tiros, eu ling se Ibe rrlagk!. acre;,t road P* hSo reason sot) equAalaa aeras to the Retained Prissy ID WITNESS WHEREOF. the Grantor has eeect;tad dais deal an :he date ler froth a6o�c. Gramm. Co-PerwPnal /Rerpr Karen Lee Lal tufo STATE of COLORADO 1 ) as COUNTY t1P GARF IELD 1 Wei orate etlste of Charles H y;Laths rn, Dereaxd l h:Nly. RoDr NOTAR]' a&Lie STATE L1LPA •0 The fPrern g mtmuntenl was Ckrinwiedged peItc day of 416tterIN7V`4t • 2004, by Kash Lee Latham lord ginger Latham to Co -Personal f[rromentatives of the rause o! Crudes Harvey Wham. Daraaod. WITNESS my hand and official reaI My enmcnierinn ragtime' t%iatitrlat J 1 11111 1111111 11111 1111 1111 1111111 iii11111 1111111 1112e7 11/11:20,36 234SP 8iRE3 P9$ r ALsDQRF 2 3R 1E EBD 121.48GARFtELDMOTY CO EXH1B11 "1" Parcel 1 Tuwtishtp r South. Rangy 96 Weir ordre 6 P M Salm 29 S'hSYi1160a1 Se4-uwt 32 NE'4 V'E'h. NW'J, N SW 1, SE V. SW'.:, WY' NEV., X400 acres' (pitman Tax Parcel No 2135321410004 1360 acrd more es ;oar] Parcel 2 w s 1p South. Range 96 West of Ite 6' PM Sectton 32 SEY. Sect KM 33 SW`s. {rentuintog part oft Tax Parcel ND 2133321000091[320 Kraa parcel J Tnwztiahtr 4 South. Lowe 97 West of the 6 1' M _ Sectton 1 Lots I0,1 3. 12, 15. 17. 111, 19, 22. 21 and 24 (part nl'1 Tax Parcel No. 216901100001 [334 711 arra% more are Ie4s all in the County of Garfield, Colorado. 111I11111N111111I111111 lilt IIIb 411111111111111 I11I 1111 1112tl7 1t/1S/2D 03.4bP 61883 P988 n fLSt20R+ 3 of 3P 18 -ea D 121.481 tFIELD=NIS' cc I iIt1bI1 B 1 1tWAIN un- elairna or pastier m pnauaUun nae maws by the pun= resn+nit 2 I:apsmietna, or trauma of rasemeau, not shown by the public records florrepan:res. confbets in boundary limp, shortage in eras_ esttoochmectr. and any facie, +hitt a torero survey and maapectie i of the,premiaee woutddiaciuie. and which we not shown by the public records 4. ibis pnrigaph tntreaticnatty delved. 5 This paragraph intenor:many deleted. 6. Taxes and inseam -menu for 2006 and subsequent gonia, a hen pot loot dos or payable i. This perogrtplr unenuonally deleted E. Any and all water rights, u1uims, ur tide to water, whcthor 01 not the meows rsaccpled are shows by the public record Right of way far ditches or canals ennnrucIcd by the attthoray of the (lake] Stator. as reserved to United Staten Patent recorded January 10, 1925 in Rook i 12 at Paye 424 and roamvotioe of all nil and gas. together with the right to prospocl fur, mite and remove the same pursuant to the prov►sruna and limitations of the Acti of July 17, 1114 In .d Palest, and any and all interests 11rc-eie or assignments thereof. 10 Right of way fur Riches or cart atacnraslructcd by the authority of the United Staten, as reserved it tinned Settee Patent recorded May 14, 1949 to book 1 4 at Piny 613 and reservation of s:I coil and odor: minerals, together with the sarin to prolpoct b:. cisme and radiuvc the arms purulent io the priors-souse:41 Irtniiations of the Act of December 29. 1416 in said Patent•rsd so p and all internals thereon or assignments thereof t t Right of way for ditches or cantos constructed by Os e d honey of the keeled Stauut, its reserved in United Saxon ratan recordei Ya suit 21, 1941 In Book 201 at Page :311 and rsse-vat2on of a0 coal and other minerals. together with the right to prospect for, mine and remo.e Inc same pursuant to the provisions alai limit:atioos ofthe Act of December 21, 1916 Inutile Patent. and any and alt interium chiasm ter assignmenn thereof 12 Rasuereeions, cnnduions t+d strputatraai coataillld tar Gelled S+atci Axiom No 1431391 recorded Apr t 10, 1951 rn Book 25711 Page 543 aIY4III . but not limited la the following. • Thai the grans hereby mode ie restricted In illealer(oe limits to the buundariea of the paid mining premises, and to any veins or lode& of quilts or other rock in place bearing gold, siker, eirnabar, load, tin, topper and other valuable depurtta which may bare beta discovered within said limitsmubicqucnt lo and whish wore not known to exist on July 12, 1941 • That should tiny vein ur lode of quartz nr other ruck la place bearing fold, silver, cinnabar, lead, ten. capper or uthor valuable dupuattr, be clan -nod ter known to eaiil within thea&rove- described premises at paid lasi•tomcd dated ter tame is eapiroaly escrows' and e.tdtuded from there presents. • Right of way for ditches or canals cnn.+trueted by rbc ttudiortty o1 the 1lnitad States .3 Rexrvntion n1 all mtaetals, together with the right w prospect fur mine and rinrore the stunt as reserved by Redd Ranches in Warranty [feed recorded December 20, 1963 in Book 355 at Parc S. and any and all ,nle:c.ta lhrttin of auljnmonti tenial Ill Foi vcyinec in Ruth Latham of an aulivslid one=nail:merest in sod to ell mmcrats owned by Latham Kunlun :n Warrant. Deed recorded An just 20. 1917 in Boat 711 at I+■ge SIU, and ray and all in4cr sts therein or algamcnta thereof 15 Lack of a right of access to and from the subfecr property. ■111 Knit :mi 11 11 1 Receptionft• 743398 62/22/2009 0355,15 PM Jean Rlberico 1 of 4 Rec ree-$21 00 Doc Fee,0 00 GARFIELD COUNTY CO When recorded return to: Peggy Gilbert Marathon Oil Company 5555 San Felipe Room 1453 Houston,, TX 77056 SPECIAL WARRANTY DEED THIS DEED, made this 17'sday of December, 2007, between BERRY PETROLEUM COMPANY, a Delaware corporation, ("Grantor") whose legal address is 950 17th Street. Suite 2400. Denver, Colorado 80202 and MARATHON OIL COMPANY, an Ohio corporation, ("Grantee") whose legal address is 5555 San Felipe, Houston, Texas 77056: WITNESSETH, That the Grantor, for and in consideration of the sum of One Million, Two Hundred Fifteen Thousand, Ten and 48/100 Dollars ($1,215,010.48), the receipt and sufficiency of which is hereby acknowledged. has granted, bargained, sold and conveyed, and by these presents does grant, bargain, sell, convey and confirm unto the Grantee, its successors and assigns forever. as a tenant in common, an undivided one-half of 100% (being an undivided 50%) interest in and to all of the real property, together with improvements, all rights associated therewith, and any after acquired interest (collectively "Property"), if any, situate, lying and being in the County of Garfield, State of Colorado. described on EXHIBIT "A" attached hereto and by this reference made a part hereof. Also known by street and number as: vacant land. TOGETHER with all and singular the hereditaments and appurtenances thereto belonging, or in anywise appertaining, and the reversion and reversions, remainder and remainders, rents, issues and profits thereof: and subrogation of Grantee to the rights of Grantor under all the covenants and warranties of tide with respect to the Property previously made by others in the chain of title; and all the estate, right, title, interest, claim and demand whatsoever of the Grantor, either in law or equity, of, in and to the Property, SUBJECT TO the Permitted Exceptions set forth on EXHIBIT "B", attached hereto and by this reference made a part hereof: TO HAVE AND TO HOLD the said premises above bargained and described with the appurtenances, unto the grantee, its successors and assigns. forever, as tenants in common. The Grantor, for itself and it's successors and assigns, does covenant and agree that it shall and will WARRANT AND FOREVER DEFEND the above -bargained premises in the quiet and peaceable possession of the Grantee, its successors and assigns. against all and every person or persons claiming the whole or any part thereof. by. through or under Grantor. IN WITNESS WHEREOF, the Grantor has executed this deed on the date set forth above. STATE OF COLORADO CITY AND COUNTY OF DENVER ) ss. ) BERRY PE a Delaware LEUM COMPANY, on The foregoing instrument was acknowledged before me on this day of ,fit 41,0y , 2008, by Dan Anderson as Vice President -Production of BERRY PETROLEUM COMPANY, a Delaware corporation. WITNESS my hand and official seal. My commission Expires: .S , '2 '/ Notary Public 111!NI14T1:1i 11"NethA1'f :l '1#,f4141 AN 11111 Receptian4: 743398 0212212008 03 55 15 PM Jean Alberxca 2 of 4 Cec Fee $I 00 Doc Fee 0 00 GPRFIF.LD COUNTY CO EXHIBIT A LEGAL DESCRIPTION Parcel 1 Township 5 South. Range 96 West of the 6th P.M. Section 29: St Su -2 Section 32: NEI,4NEIra.NWu4.NI,2SW1/4 SE1/4SWr,4,W1,2NEri.1. (part of) Tax. Parcel No. 213532100009 Parcel 2 Township 5 South, Range 96 West of the 66 P.M. Section 32: SE114 Section 33: SW 1,4 (remaining part of) Tax Parcel No. 213532100009 Parcel 3 Township 6 South Range 97 West of the 6th P.M. Section 1: Lots 10, 1 1, 12, 15, 17, 18, 19, 22, 23 and 24 (past o1') Tax Parcel No. 216901100027 The intent of this Deed is to convey an undivided 50% interest in all of the lands and interests conveyed to Grantor by that certain Special Warranty Deed recorded in the records of the Garfield County,Colorado, Clerk and Recorder at Reception No. 711206 on November 15, 2006, and that certain Personal Representatives Deed recorded in those records at Reception No_ 711207 on November 15, 2006. SNI in i/M M NI All AMOR KIM ' 11111 Reception#: 743398 02(2212000 03.55:15 PM Jean Alberico 3 of 4 Rec Fee $21 00 Doe Fee 0.00 GARFIELD COUNTY CO EXHIBIT "W' PERMITTED EXCEPTIONS 1. Rights or claims of parties in possession not shown by the public records. Easements, or claims of easements, not shown by the public records. 3. Discrepancies, conflicts in boundary lines, shortage in area, encroachments, and any facts, which a correct survey and inspection of the premises would disclose, and which are not shown by the public records. 4. Taxes and assessments for 2007 and subsequent years, a lien not yet due or payable. 5. Any and all water rights, claims, or title to water, whether or not the matters excepted are shown by the public record. 6. Right of way for ditches or canals constructed by the authority of the United States, as reserved in United States Patent recorded January 16, 1925 in Book 1112 at Page 424 and reservation of all oil and gas, together with the right to prospect for, mine and remove the same pursuant to the provisions and limitations of the Act of July 17, 1914 in said Patent, and any and all interests therein or assignments thereof. 7. Right of way for ditches or canals constructed by the authority of the United States, as reserved in United States Patent recorded May 14, 1940 in Book 194 at Page 615 and reservation of all coal and other minerals, together with the right to prospect for, mine and remove the same pursuant to the provisions and limitations of the Act of December 29, 1916 in said Patent, and any and all interests therein or assignments thereof. 8. Right of way for ditches or canals constructed by the authority of the United States, as reserved in United States Patent recorded January 28, 1943 in Book 208 at Page 138 and reservation of all coal and other minerals, together with the right to prospect for, mine and remove the same pursuant to the provisions and limitations of the Act of December 29, 1916 in said Patent, and any and all interests therein or assignments thereof. 9. Reservations, conditions and stipulations contained in the United States Patent No. 1431391 recorded April 10, 1951 in Book 257 at Page 543 including, but not limited to the following: That the grant hereby made is restricted in its exterior limits to the boundaries of the said mining premises, and to any veins or lodes of quartz; or other rock in place bearing gold, silver, cinnabar, lead, tin, copper and other valuable deposits which may have been discovered within said limits subsequent to and which were not known to exist on July 12, 1949. That should any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits, be claimed or known to exist within the above-described premises at said last-named dated, the same is expressly excepted and excluded from these presents. • Right of way for ditches or canals constructed by the authority of the United States. 10. Reservation of a.11 minerals, together with the right to prospect for, mine and remove the same as reserved by Redd Ranches in Warranty Deed recorded December 20, 1963 in Book 355 at Page 5, and any and all interests therein or assignments thereof. ET in r'L PANII ,itthI `Gr4 'I I' 1.IC MIdi •1 Ili Reception 743398 02f22(2008 03 55 15 PM Jean Ribertca 4 of 4 Rec Fee 121 00 Doc Fee 0 00 GARFIELD COUNTY CO 11. Conveyance to Ruth Latham of an undivided one-half interest in and to all minerals owned by Latham Ranches in Warranty Deed recorded August 20, 1987 in Book 719 at Page 510, and any and all interests therein or assignments thereof. 12. Lack of a right of access to and from the subject property. 13. Reservation by Thomas A. Latham, Karen Lee Latham and Ginger Latham of a non-exclusive easement, as more fully described in Special Warranty Deed recorded November 15, 2006 in Book 1 863 at Page 981, and Personal Representative Deed recorded November 15, 2006 in Book 1863 at Page 984. 14. Rights of Chevron Shale Oil Company under the Connected Road Right - of -Way Grant and Easement dated effective November 14, 2006, and recorded December 6, 2007 at Reception No. 738783, Garfield County, Colorado. 15. Rights of Williams Production RMT Company under the Connected Road Right -of -Way Grant and Easement dated effective November 14, 2006, and recorded December 6, 2007 at Reception No. 738784, Garfield County, Colorado. 3741163_3.D(]C illiarathon memo OI June 26, 2007 Berry Petroleum Company Attn: Mr. Joseph Stewart 950 17'6 Street, Suite 2400 Denver-, CO 80202 Teton Piceence, LLC Attn: Mr. Andrew M. (Toby) Schultz 410 17th Street, Suite 1550 Denver, CO 80202 POR Partners, LLC Attn: Mr. Chuck Williams c/o Delta Petroleum Corporation 370 17°i Street, Suite 4300 Denver, CO 80202 Re: Surface Sharing Agreement Latham Acreage Portions of Sections 29, 32 and 33, T5S, R96W, and Portions of Section 1, T6S, R97W, 66' P.M. Garfield County, Colorado Gentlemen: CD p 115/D5 tt_ 9. Piodudton Operotfona Pip,enoe Radcba Gag 5555 Seri Fer=049 Road Houston, TX 77068.2323 Telephone: (713)6 8600 This will memorialize the arrangement ("Agreement') between Berry Petroleum Company ("Berry") and Marathon Oil Company ("Marathon") for the purchase and sharing of tare above - referenced Latham surface property consisting of approximately 1,215 acres Berry acquired on November 13, 2006, from Thomas F. Latham and the Estate of Charles Harvey Latham (collectively "Lathams"), which property and lands are described on Exhibit "A," attached and incotpora?.ed herein ("Lands"). It is our understanding Berry has an arrangement with Teton Piceance, LLC, a Colorado limited liability company whose address is 410 17`x` Street, Suite 1850, Denver, Colorado 80202 ("Teton"), and PMR Partners, LLC, a Colorado limited liability company whose address is 370 37¢' Street, Suite 4300, Denver, Colorado 80202 ("PGR"), whereby ,Berry will assign a 12.5% undivided interest in and to the Lands to Teton and an undivided 12.5% interest in and to the Lands to PGR. Upon Berry assigning the aforementioned interests to Teton, PGR, and the Berry Petroleum Company Teton Pioeance, LLC PGR Partners, LLC June 26, 2007 Page 2 conveyance described herein to Marathon, the Lands will be owned ii their entirety by Beny, Marathon. Teton and POR as co -tenants in the following undivided percentages: Berry 25% Marathon 50% Teton 12.5% PGR 12.5% Total 100'Jo Berry, Marathon, Teton and PGR may be referred to individually as "Party" or collectively as "Parties." In consideration of the covenants and promises to be performed hereunder, the adequacy and receipt of which are hereby acknowledged, the Parties agree as follows: 1. ,Purchase and Conveyance. Marathon shall pay Berry the amount of One Million, Two Hundred Fifteen Thousand, Ten and 48/100 Dollars ($1,215,010.48) to Berry, and Berry shall convey to Marathon, by Special Warranty Deed (with subrogation and assignment of the Latham' warranty), an undivided fifty percent (S0%) interest in the Lands. 2, Operations and Use of the Land. The Parties each own respective oil and gas leasehold interests or mineral interests underlying the Lands, as described and depicted on the attached Exhibit "B." For the sake of clarity, the Teton, 1'GR and Berry interests are referred to and depicted on Exhibit "A" as `Berry Leasehold," and Marathon interests are referred to as "Marathon Leasehold" Each Party shall have the right to construct their well pads and associated oil and gas facilities and infrastructure on that portion of the Lands that overlie their leasehold minerals, as depicted on Exhibit "B." If a Party desires to utilize the surface of the Lands overlying another Party's leasehold, it shall consult with the other Party whose leasehold underlies such surface, and the Parties shall negotiate in good faith and cooperate with one another in trying to arrange an acceptable and appropriate surface location for such use. The Parties understand and agree this Agreement and their respective rights and obligations are subject to: (a) the Grazing Lease dated June 18, 2007, between ferry and Latham Cattle Company, (b) the condition to grant to Chevron Shale Oil Company a non-exclusive right-of- way, as more fully set forth in paragraph 8 of the January 26, 2007 Agreement for the Garden Gulch Road Extension; and (c) the commitment to grant a non-exclusive right-of-way to Williams Production RMT Company for that portion of the Garden Gulch Road Extension as it traverses the [,ands.. The Parties shall have the right to utilize the Lands for easements or rights-of-way for roads, lines or pipelines that may be beneficial for their operations; provided, however, the Party proposing such right-of-way or easement shall consult with the other Party(ioa) whose leasehold interest underlies the proposed route as to the location of the easement or right-of-way. The Parties agree to cooperate with one another in the placement of roads, facilities or infrastructure and shall, to the extent reasonably practicable, minimize interference with the operations of the other Parties. In addition, the Parties agree to use, to the extent reasonably practicable, common roads and utility aud pipeline corridors in order to minimize the number of roads and corridors on Berry Petroleum Company Teton Piceanc e, LLC POR Partnere, LLC June 26, 2007 Page 3 the Lands. Notwithstanding anything to the contrary, each Party shall be permitted access to its Leasehold interest, its wells and the Water Flights (as described in Paragraph 4) by the other Parties. 3. C,mmnn Fadities and Operationg. The Parties agree to coordinate with ane another in planning, designing and constructing oil and gas facilities and infrastructure on the Lands. The Parties shall exrmmunicate with one another in determining whether it is practical and desirable to sham any facilities or infrastructure that may be located on the Lands, including, among others, evaporation pits, water supply, roads, gathering lines, communication towers, storage yards, etc. Nothing in this paragraph shall be deemed to require any Party to share or join in the construction of any facilities or infrastructure. If the Parties desire to jointly share or construct facilities or any type of infrastructure, they shall memorialize their arrangement in a written agreement. Upon the Parties reaching agreement as to the location of any roads, lines or pipelines (whether gathering, water supply or discharge, electric or injection), or other infrastructure, the Parties agree to execute and record of record an easement and/or right-of-way for the road, line or pipeline, whichever is applicable. 4. Water Rights. The Parties hereby agree to share, in proportion to their ownership interest in the Lands, ell water rights associated with or appurtenant to the Lands, including, among others, the rights acquired by Berry from the Latham under the November 13, 2006 Quitclaim Deed (collectively "Water Rights"). Each Party agrees to allow the other Parties reasonable aocess across the Lands underlying its leasehold interest to roach such water. 5. Obligations,indemnitiea aral Disclaimer of Warrantiee. Each Party agrees to be responsible for and fully protect, indemnify, defend, release and hold each of the other Parties, their respective officers, employees, agents and representatives, harmless for any injury to or death of any person and for any injury to property, including, among others, damages to the natural resources or the environment, arising out of or which relate to the Parties' respective activities, leasehold operations or use of the Lands, regardless of any actual or alleged negligence (active or passive, sole or concurrent), act, omission or other fault by any third party. The indemnity and release contained in this Paragraph 5 shall apply to any and all claims, demands, liabilities, losses, damages, expenses, proceedings and causes of action (including, among others, reasonable attorney's fees, court costs and other expenses in handling such matters) of whatsoever nature or kind (individually "Claim" or collectively "Claims")_ Each Party agrees that the indemnification given by it applies to and covers the acts and omissions of its employees, agents, representatives, contractors and invitees. To the extent a Party utilizes (whether intentionally or unintentionally) any roads, facilities or infrastructure constructed by another Party, each Party acknowledges that such use will be at its sole risk and with the understanding that no Party to this Agreement snakes any representation or warranty of any kind (except such title warranties as are contained in the deeds into each Party), and that the Party constructing the road, facility or infrastructure expressly disclaims and negates any representations and warranties of any kind whatsoever, whether Berry Petroleum Company Teton Piceance, LLC POR Partners, LLC Juan 26, 2007 Page 4 express or implied, and that the same is being used and accepted "AS IS," "WHERE IS," "WITH ALL FAULTS" and "WTl<'I OUT RECOURSE" on a daily basis, 6. Claims anti Litigatioi. In the event any Party receives notice of any Claims (as defined above) from a Party or a third party, the Party shall promptly advise the other Parties in writing of the Bill particulars of such Claims, including supplying any available supporting documentation or information, and advise as to whether it will seek indemnification under this Agreement. If a Party seeks indemnification, the Party supplying the indemnification shall administer, control and handle the defense; provided, however, the indemnified Party shall fully cooperate in the defers and have the right, at its own expense, to participate in the matter. If a third party, including, among others, a governmental body, ben s. a Claim against any or all of the Parties to this Agreement by which title to or use of the Lands could be restricted or negatively impacted, the Parties agree to the extent practicable to cooperate with one another and form a joint defense, 7. Compliance With Alii tsk Laws. Each Party agrees to comply with all applicable federal, state and local laws, rules, orders, regulations or ordinances aa pertain to their ownership, operation or activities on the Lands. The Parties agree that they will not dump, bury or intentionally dispose of waste, toxic substances, hazardous wastes or hazardous materials on the Lands tiniest prior written consent is received from each Party and al! applicable governmental permits, approvals and procedures are obtained in advance of such activity. Conditions of Use. As a condition to using the Lands, the Parties agree that their employees, agents, consultants, representatives, contractors and invitees shall riot be permitted to have, use or carry any firearms, weapons, illegal drugs, alcohol or fireworks while cc the Lands. Each Party shall keep the Lands free from all trash, debris and waste, and shall leave all gates locked or opened, as postai Speed limit and other traffic postings shall be obeyed. The Lands shall not be used for hunting unless written permission is received from each Party. The Parties agree that written notice of these conditions shall be communicated, supplied to and binding upon their respective employees, contractors, agents, representatives and invitees. 9. Taxes and Encumbrances. The Parties agree to nominate Berry as the Party responsible for receiving and paying any and all real property taxes and irrigation and water rights assessments or fees as they pertain to the surface of the Lands and Water Rights associated therewith. Upon being billed by the applicable taxation authority or water agency, Berry shall invoice each Party for their respective pro -rata share of the applicable taxes, assessments and fees, which shall be paid within thirty (30) days of receipt. Each Party agrees to keep its interest in the Lands and the Lands free and clear of any liens, mortgages or other encumbrances (collectively "Encumbrance") that may impair or affect title and use of the Lands. if an Encumbrance is created, each Party, upon giving thirty (30) days' advance written notice to the Party vrhotn it is alleged created the Encumbrance, shall have the right to satisfy the Encumbrance and upon doing so collect the amount paid to resolve the matter from the applicable Party in whose name the Encumbrance was created. Berry Petroleum Company Teton Piceance, LLC PGR Partners, LLC June 26, 2407 Page 5 10. Relationship of tho Peres. It is not the intention of the Parties to create a partnership, joint venture, mining partnership or association, and neither this Agreement, activities conducted hereunder, nor the ownership of the Lands, shall be construed as creating such relationship, The duties, obligations and liabilities of the Parties shall be several and separate, and not joint or collective. Each Party is solely responsible for its own obligations, uses and activities, and nothing contained in this Agreement shall be construed to constitute; either Party to be a partner or agent of the other Parties. The Parties hereby expressly disclaim, waive and release any fiduciary duties that may be alleged or owed the other Parties. The Parties acknowledge they have jointly participated in the drafting and participation of this Agreement. 11. Disputes Between the Partial. In the event of any Claim or controversy between the Parties as it may relate to this Agreement, the Parties agree their senior management shall meet within thirty (30) days of receipt of a written notice of a Claire or controversy, and negotiate in good faith to resolve the matter. If the Claim or controversy is not resolved within the aforementioned 30 -day period, a Party shall submit the metier to the Judicial Arbiter Group ("JAG") (1601 Blake Street, Suite 400, Denver, Colorado 80202-1328) for binding arbitration, and the Parties shall collectively select ane arbiter who is generally knowledgeable as to the matter and of the law. If the Parries cannot agree on one arbiter, JAG shall select one in accordance with this Agreement. The arbiter shall resolve the matter within forty-five (45) days from the time the matter was submitted to JAG. The Parties shall cooperate with one another in the selection of the arbiter and the scheduling of the binding arbitration. The Parties to the arbitration shall equally share all costs associated with the arbitration, including, among others, JAG's fees, except each Party will be solely responsible for its own attorney's fees and costs incurred in the arbitration. This agreement to submit the matter to binding arbitration and any subsequent final award issued by the arbiter shall be binding and enforceable in U. S. District Court in Colorado. 12. Flutter AasuranQes and Memorandum of Aum.. The Parties agree to act in good faith and cooperate In taping whatever action may be reasonably necessary to effectuate the purposes and intent of this Agreement, and to execute and deliver appropriate documents or iastrurnents that may be required. This Agreement shall not be recorded; provided, however, the Parties shall execute a Memorandum of Agreement, which may be recorded . 13. Covenant Running With the Land and Suecoasors and Assigns. The terms of this Agreement shall be deemed a covenant running with the land and shall be binding upon the Parties and their respective heirs, successors and assigns. A Party's interest shall not be fractionalized, but shall be assigned, if at all, in total to its successor or assign. If any Party contemplates a transfer, it shall provide prior written notice to the rather Parties, and shall require its potential successors or assigns to agree in writing to be bound by the turns of this Agreement. Nothing contained in this Agreement shall confer any rights, benefits or remedies to third parties other than successors and assigns, and no other party shall be deemed a third party beneficiary. 14. Notices, All notices or communications shall be written or, If oral, immediately followed up in writing and deemed to have been duly given when the written notice is personally delivered, or if mailed, by registered or certified mail, or if sent by a nationally recognized Berry Petroleum Company Teton Pioeance, LLC PGR Partners, LLC June 26, 2007 Page 6 delivery service when received, all charges prepaid, with receipt confirmed to the respective addresses as designated in writing by each Party. 15. Comterpgds. This Agreement may be executed in one a more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument and shall be binding upon the Parties when all have signed. If the foregoing is acceptable, please sign in the space provided below and return one complete original to the undersigned at the above address. Sincerely, MARATHON OIL COMPANY Dennis W. Arnst Team Asset Manager Piceance Rockies Gas DWA:mes Attachments AGREED TO AND ACCEPTED BY: Date: _ 7 10/0 '7 Date: BERRY PE •0 OMPANY [A• By Name Title d Representative] TETON PICEANCE, LLC By Name Title [Authorized Representative] PGR PARTNERS, LLC Date: By Name Title [Authorized Representative] Berry Petroleum Company Teton Piccan e, LLC PIR Partners, LLC June 26, 2007 Page 6 delivery service when receival, all charges prepaid, with receipt confirmed to the respective addresses as designated in writing by each Party. 15. Countnarta. Thio Agreement may be executed in one or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument and shall be binding upon the Parties when all neve signed. Lf the foregoing is acceptable, please sign in the space provided below and return one complete original to the undersigned at the above address. Sincerely, MARATHON OIL COMPANY Dennis W. Arnst GO Team Asset Manager Pic Bance Rockies ©as DWA:rnes Attachments AGREED TO AND ACCEPTED BY: BERRY PETROLEUM COMPANY Date: By Name Title Date: 7/"-C, ? [Authorized Representative] TETON PICEANCE, LLC By a--� Name Title dr -401,41,-00 G [Authorized Representative] POR PARTNERS, LLC Dale: By Name Title [Authorized Representative] Berry Petroleum Company Teton Piceance, LLC PMR Partners, LLC June 26, 2087 Page 6 delivery service when received, ail charges prepaid, with receipt confirmed to the respective addresses as designated in writing by each Party. 15. Counternert$. This Agreement may be executed in one or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument and shall be binding upon the Parties when all have signed. If the foregoing is acceptable, please sign in the space provided below and return one complete original to the undersigned at the above address. Sincerely, MARATHON on, COMPANY 1,1444(n Dennis W. Arnst Team Asset. Manager Piccance Rockies Gas DWA:mes Attachments ee) AGREED TO AND ACCEPTED BY; BERRY PE'T'ROLEUM COMPANY Date: By Name Title [Authorized Representative] TETON PICEANCE, LLC Date: By Name Title Date: [Authorized Representative] By '� .� 111 ! Marne J D h.t Liii :ALL.4\ l [ . Title A4k [Authorized Representative] EXHIBIT ~AIS Attached To and Made a Part of That Certain Surface Sharing Agreement By and Between Marathon Oil Company, Bray Petroleum Company, Teton Puce, LLC, and POR Partners, LLC Parcel 1 Trip 5 louthjonge 96 West of the 66 PM. Section 29: VAS Ya [160 acres] Section 32: NE%NEY, NW'!•, N'V S W'14, SE'/,SW %, WANE' [400 acres] (part of) Tax Parcel No. 213532100009 [560 acres, more or less] Parcel 2 Township 5 Ssze e. -logo 96 West of the Q.M. Section 32: SE'/i Section 33: SW% (remaining part of) Tax Parcel No. 21 3532100009 [320 acres] Parcel 3 L wnahip 6 5oyth tiers t 97 West of the 4' P.14i. Section 1: Lots 10, 11, 12, 15, 17, 18, 19, 22, 23 and 2.4 (part of) Tax Parcel No. 216901100001 [334,78 acres, more or less) All in the County of Garfield, State of Colorado. COLORADO 31 30 20 7 l r. �PIn3 riTk a' Legend ® L]ltl3niCa1>tn ®LkeLpan 6,1ara IJ.ariHSan L case UnH E,� Heng voowovm it 1 • a Marathon at Company Y.2.9 Surface Sharing Agreement Latham Acreage Exhibit “B" GAr d County. Colorado IA.1)1../Cam.. t:atlW On. 9yr,. ivl vsu ufvw_Ew It e.w 0.:.Yx(' 1111 K. FMNili,ViDICIPtiV141714 IAN 11111 R.rept ion# : 794565 11/1712010 02:25:53 Pr dean Alderica 1 of 4 Ric Fee:$26,00 Doc Foe:0-00 GARFIEL4 COUNTY CO SPECIAL WARRANTY DEED THE Delta. Petroleum Corporation. a Delaware corporation whose street address is 370 Seventeenth Street, Suite 4300, in the City and County of Denver and State of Colorado ("Grantor"), for good and valuable consideration, in hand paid, hereby sells and conveys to Wapiti Oil & Gas, LLC, whose street address is 800 Gessner, Suite 1000, Houston, TX 77024, all of Grantor's right, title and interest in the following real property to -wit: Parcel 1 Township 5 South. Range 96 West of the 6 ' P.M. Section 29: 5/25/2 Section 32: NE/4NE14, NW74, N12SWf4, SE/4SW/4, W/2NE/4 (part of) Tax Parcel No. 213532100009 Parcel 2 Township 5 South. Ranze 96 West of the 6th P.M. Section 32: SE/4 Section 33: SW/4 (remaining part of) Tax Parcel No. 213532100009 Parcel 3 Township 5 South_ Range 97 West of the 6th P.M. Section 1: Lots 10, 11, 12, 15, 17, 18, 19, 22, 23, and 24 (part of) Tax Parcel No. 216901100001 All in Garfield County, Colorado with all its appurtenances and warrants the title against all persons claiming under it, subject to those matters set forth on Exhibit A, Permitted Exceptions, attached hereto and incorporated herein by this reference. Si led effective as of the 28th day of July, 2010. Delta Petroleum Co oration By: L r Print Nam: arl Lakey Its: ChieflExecutive Office 1111IAPlitiVhil> VATIA 111 11/1712010 02:25:53 PM Joan Olborico 2 of 4 Roc Fso:528.00 Doc Fos:0.00 GARFIELD COUNTY CO ACKNOWLEDGEMENT STATE OF COLORADO CITY AND COUNTY OF DENVER ) ) Ss. This instrument was acknowledged before me on July , 2010 by Carl Lakey as Chief Executive Officer of Delta Petroleum Corporation, a Delaware corporation. My Commission Expires: 2/577,o) 7o) z Notary Public 1 JENNIFER A LLELLIG Notary Public State of Colorado roto Commission Expires February 05. 2012 EXHIBIT "A" PERMITTED EXCEPTIONS 1. Rights or claims of parties in possession not shown by the public records. 2. Easements or claims of easements, not shown by the public records. 3. Discrepancies, conflicts in boundary tines, shortage in area, encroachments, and any facts, which a correct survey and inspection of the premises would disclose, and which are not shown by the public records. 4. Taxes and assessments for 2010 and subsequent years, a lien not yet due OT payable. 5. Any and all water rights, claims, or title to water, whether or not the matters excepted are shown by the public record. 6. Right of way for ditches or canals constructed by the authority of the United States, as reserved in United States Patent recorded January 16, 1925 in Book 112 at Page 424 and reservation of all oil and gas, together with the right to prospect for, mine and remove the same pursuant to the provisions and limitations of the Act of July 17, 1914 in said Patent, and any and all interests therein or assignments thereof. 7. Right of way for ditches or canals constructed by the authority of the United States, as reserved in the United States Patent recorded May 14, 1940 in Book 194 at Page 615 and reservation of all coal and other minerals, together with the right to prospect for, mine and remove the same pursuant to the provisions and limitations of the Act of December 29, 1916 in said Patent, and any and all interests therein or assignments thereof. 8. Right of way for ditches or canals constructed by the authority of the United States, as reserved in the United States Patent recorded January 28, 1943 in Book 208 at Page 138 and reservation of all coal and other minerals, together with the right to prospect for, mine and remove the same pursuant to the provisions and limitations of the Act of December 29, 1916.in said Patent, and any and all interests therein or assignments thereof, 9. Reservations, conditions and stipulations contained in the United States Patent No. 1431391 recorded April 10, 1951 in Book 257 at Page 543 including, but not limited to the following: ■ That the grant hereby made is restricted in its exterior limits to the boundaries of the said mining premises, and to any veins or lodes of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits which may have been discovered within said limits subsequent to and which were not known to exist on July 12, 1949. SII +"zl l M J4 4lN li 1 U* 1I III Roc.Di�tlorrtk' 76 111012010 02:26:83 RR Jean Rlberico 3 of 4 Roc Fee:$26.00 boa Fe4:0.00 t 1RFI£LD COUNTY CO X11115.111101INAIMACIACWIMIR Ng 11111 Rimmpticallt: 794565 11/17/2919 92:25:53 P9'1 Jaen R1beriCd 4 of 4 Rea Fee:$25.99 Doc Fes -O_0@ t #RFIELD COUNTY CO • That should any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits, be claimed or known to exist within the above-described premises at said last --named dated, the same is expressly excepted and excluded from these presents. • Right of way for ditches or canals constructed by the authority of the United States. 10. Reservation of all minerals, together with the right to prospect for, mine and remove the same as reserved by Redd Ranches in Warranty Deed recorded December 20, 1963 in Book 355 at Page 5, and any and all interests therein or assignments thereof. 11. Conveyance to Ruth Latham of an undivided one-half interest in and to all minerals owned by Latham Ranches in Warranty Deed recorded August 20, 1987 in Book 719 at Page 510, and any and all interests therein or assignments thereof. 12. Lack of a right of access to and from the subject property. 13. Reservation by Thomas A. Latham, Karen Lee Latham and Ginger Latham of a non- exclusive easement, as more fully described in Special Warranty Deed recorded November 15, 2006 in Book 1863 at Page 981, and Personal Representative Deed recorded November 15, 2006 in Book 1863 at Page 984. 14. Rights of Chevron Shale Oil Company under the Connected Road Right -of -Way Grant and Easement dated effective November 14, 2006 and recorded December 6, 2007 at Reception No. 738783, Garfield County, Colorado. 15. Rights of Williams Production RMT Company under the Connected Road Right-of-way Grant and Easement dated effective November 14, 2006, and recorded December 6, 2007 at Reception No. 738784, Garfield County, Colorado. 4 1111117.6114M111.1 G 1th't,':1/41116:10 NI l B III Receptionii: 775544 09/2412009 12:38:37 PM.: filberico 1 of 3 Rec Fee:821.00 Doc Fee:0.00 GARFIELD COUNTY CO Corrective SPECIAL WARRANTY DEED THIS DEED, made this 10th day of September, 2009, between BERRY PETROLEUM COMPANY, a Delaware corporation ("Grantor"), whose legal address is 1999 Broadway, Suite 3700, Denver, Colorado 80202 and PGR PARTNERS LLC, a Colorado limited liability company ("PGR"), 370 17th Street, Suite 4300, Denver, Colorado 80202 and DELTA PETROLEUM CORPORATION, a Delaware corporation ("Delta'), 370 17th Street, Suite 4300, Denver, Colorado 80202 as successor in interest to Teton Piceance LLC, a Colorado limited liability company, (collectively "Grantees"). WHEREAS, it is the desire of Grantor to amend the title chain ambiguity created by that certain Special Warranty Deed from Grantor to PGR dated May 21, 2009 and recorded at reception number 769561 in the records of Garfield County, Colorado wherein Grantor conveyed an undivided 12.5% of 100% of its interest to PGR and Grantor did not own 100% of the record title to the property at the time if its conveyance to PGR. WHEREAS, it is the desire of Grantor to amend the title chain ambiguity created by that certain Special Warranty Deed from Teton Piceance LLC, a Colorado limited liability company ("Teton") to Delta dated May 21, 2009 and recorded at reception number 769892 in the records of Garfield County, Colorado in that Teton did not own record title to the property it intended to convey to Delta. WITNESSETH, That the Grantor, for valuable consideration, the receipt and sufficiency of which is hereby acknowledged, has granted, bargained, sold and conveyed, and by these presents does grant, bargain, sell, convey and confirm unto the Grantees, their successors and assigns forever, as a tenant in common, an undivided 12.5% interest to PGR and an undivided 6.25% interest to Delta as to all of the real property, together with improvements, all rights associated therewith, and any after acquired interest (collectively "Property"), if any, situate, lying and being in the County of Garfield, State of Colorado, described on EXHIBIT "A" attached hereto and by this reference made a part hereof. Also known by street and number as: vacant land. TOGETHER with all and singular the hereditaments and appurtenance thereto belonging, or in anywise appertaining, and the reversion and reversions, remainder and remainders, rents, issues and profits thereof; and subrogation of Grantees to the rights of Grantor under all the covenants and warranties of title with respect to the Property previously made by others in the chain of title; and all the estate, right, title, interest, claim and demand whatsoever of the Grantor, either in law or equity, of, in and to the Property. TO HAVE AND TO HOLD the said premises above bargained and described with the appurtenances, unto the Grantees, its successors and assigns, forever, as tenants in common. The Grantor, for itself and its successors and assigns, does covenant and agree that it shall and will WARRANT AND FOREVER DEFEND the above -bargained premises in the quiet and peaceable possession of the Grantees, its successors and assigns, against all and every person or persons claiming the whole or any part thereof, by, through or under Grantor. IN WITNESS WHEREOF, the Grantor has executed this deed on the date set forth above, but made effective as of May 21, 2009. BERRY PETROLEUM COMPANY a Delaware corporation By: Ae /-, `',1rG. Anderson Its: Vi,�. 'resident 1111 P1111411141/4 ,11014 11110K IV41i'1+141idr"Itf f i 1 III Recept i ort# : 775544 09/2412009 12:3$:37 PM Jeai ,,lberico 2 or 3 Rec Fee:$21.00 Doc Fee,0.00 GPRFIELD COUNTY CO ACKNOWLEDGMENT STATE OF COLORADO ) .ss CITY AND COUNTY OF DENVER ) The foregoing instrument was acknowledged before me this 10th day of September, 2009, by Daniel G. Anderson as Vice President, of BERRY PETROLEUM COMPANY, a Delaware corporation. Witness my hand and official seal. My Commission Expires: 5 --S- Q 11 Notary Public 1111 fir♦ Pr4oiCov111 o.I6erteii:ti 1mai 141,111111 Reception#: 775544 09(24/2009 12.38:37 P11 Jear..,lberico 3 of 3 Rea Fer,$21.00 Doc FeeAp_00 GPRFIELD COUNTY CO EXHIBIT "A" LEGAL DESCRIPTION Parcel 1 Township 5 South, Range 96 West of the 6th P.M. Section 29: S/2S/2 Section 32: NE/4NE/4, NW/4, N/2SW/4, SEASW/4, W/2NE/4 (part of) Tax Parcel No. 213532100009 Parcel 2 Township 5 South, Range 96 West of the 6th P.M. Section 32: SE/4 Section 33: SW/4 (remaining part of) Tax Parcel No. 213532100009 Parcel 3 Township 6 South, Ranee 97 West of the 6th P.M. Section 1: Lots 10, 11, 12, 15, 17, 18, 19, 22, 23 and 24 (part, of) Tax Parcel No. 216901100001 All in Garfield County, Colorado END OF EXHIBIT "A" Preapplication Conference Summary Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 GARFIELD COUNTY Community Development Department 108 8th Street, Suite 401 Glenwood Springs, Colorado 81601 Telephone: 970, 945.8212 Facsimile: 970.384.3470 www.garfield-county.com PRE -APPLICATION CONFERENCE SUMMARY DATE: October 10, 2013 TAX PARCEL NUMBERS: 2135-321-00-009 PROJECT: Marathon Water Storage/Processing PROPERTY OWNER: Berry Petroleum Company REPRESENTATIVE: Jeff Hofman/Olsson Associates PRACTICAL LOCATION: Section 32, T5S, R96W TYPE OF APPLICATION: Limited Impact Review for Water Irnpoundment/Processing ZONING: Resource Land — Plateau I. GENERAL PROJECT DESCRIPTION The Applicant wishes to obtain a Land Use Change Permit for an existing produce water impoundment and a future water treatment facility on Well Pad 596-32C. The existing pond is 301' long, 85' wide, and 15' deep with working and maximum capacities of 37,853 BBL and 48,003 BBL, respectively. The pond has two liners; both consisting of Reinforced Polyethylene, 60 millimeters thick with bentonite mats. The well pad also contains: • Two well heads • Two meter buildings • Pump • SCADA building — 5' x 5' • Gun Barrel Tank - 12' x 25' ▪ Material: Steel and Coating - 100% internally i= Design Pressure: 16 oz. ➢ Capacity: 500 BBL • Condensate Tank - 12' x 20' y Material: Steel Coating - 100% internally ➢ Design Pressure: 16 oz • Capacity: 400 BBL • Water Tanks — 12' x 20' ➢ Material: Steel ➢ Design Pressure: 16 oz ➢ Capacity: 400 BBL • 3 -Phase Separator — 20" x 8', housed within a building ➢ Material: Steel ➢ Design Pressure: 1,000 PSI ➢ Gas Capacity: 4 MMSCFD @ 200 PSI ➢ Gas Capacity: 6 MMSCFD @ 400 PSI ➢ Water Capacity: 1560 BPD ➢ Condensate Capacity: 1080 BPD In the future, the Applicant wishes to add a skid mounted water treatment facility that filters (processes) the produced water so that it can be used for drilling and completion and/or discharge. The filtered water will be either piped or trucked from the well pad. The Applicant indicates that a CDPHE permit would be obtained if discharge is proposed. The proposed location of the water treatment facility will need to be located on the Site Plan and addressed as part of the application. The Industrial Use standard (Section 7-1001) also applies to this site and narrative will need to be provided addressing this section. Other items that will need to be addressed as part of the application include: • The Applicant will need to provide evidence that the water being produced is non -tributary and a representation that it won't be used for any purpose that would require a well permit under CRS 37-90- 137. Provide a map illustrating the location of the wells the produced water is being derived from; • Provide a map that clearly shows the conveyance network (pipelines) from the wells to the storage facility; • The application will need to address if pipelines easements have been secured with Surface Use Agreements (SUA) that cross the affected properties. Also, SUAs are sometimes conditional so the Applicant will need to represent that they will comply with the terms of the SUA. This can be accomplished with a letter to the County stating you will comply with these conditions; and, • Have any of the pipelines to transport the produced water receive a County permit. If so, provide a copy of this permit. If not, indicate why a permit wasn't obtained (i.e., pipeline didn't trigger a permit). As per Section 4-202 Waiver of Submission Requirements, please indicate the items that you wish to waive in your submittal and use the criteria under this section to justify why this material should not be submitted. An Applicant may also request a waiver of standards in Article 7 and this request will need to be part of your submittal, see Section 4-118 Waiver of Standards. II. REGULATORY PROVISIONS APPLICANT I5 REQUIRED TO ADDRESS: • Garfield County Comprehensive Plan 2030; • Garfield County Land Use and Development Code; • Limited Impact Review (Section 4-104); • Article 7, Divisions 1, 2 and 3; Section 7-1001 Industrial Uses; and, • Table contained in 4-102, Common Review Procedures and Required Notice; and, Table 4-201 Application Submittal Requirements. III. PROCESS 1. Pre -application Conference; 2. Application; 3. Determination of Completeness; 4. Submittal of additional materials (if needed) and copies for referral review; 5. Schedule Public Hearing; 6. Evaluation by Director/Staff Review; 7. Schedule Board of County Commissioners Public Hearing; and, 8. Review and Action by the Board of County Commissioners. III. SUBMITTAL REQUIREMENTS • General Application Materials (Application Form, Fee, Payment Agreement Form, Statement of Authority, Letter of Authorization, Deed of Ownership, Pre -application Conference Summary); • Vicinity Map (4-203.C); • Site Plan (4-203.D); • Grading and Drainage Plan (4-203.E); • Landscape Plan (4-203.F), not applicable; • Impact Analysis (4-203.G); • Traffic Study (4-203.L); • Water Supply/Distribution Plan (4-203.M); and, • Wastewater Treatment Plan (4-203.N). IV. APPLICATION REVIEW a. Review by: Staff for completeness recommendation and referral agencies for additional technical review b. Public Hearing: c. Referral Agencies: Planning Commission X Board of County Commissioners Board of Adjustment May include Garfield County Road and Bridge Department, Fire Protection Districts, Garfield County Environmental Health Manager, Garfield County Vegetation Manager, Garfield County Consulting Engineer, Colorado Parks and Wildlife General Application Processing Planner reviews case for completeness and sends to referral agencies for comments. Case planner contacts applicant and sets up a site visit. Staff reviews application to determine if it meets standards of review. Case planner makes a recommendation of approval, approval with conditions, or denial to the appropriate hearing body. Disclaimer The foregoing summary is advisory in nature only and is not binding on the County. The summary is based on current zoning, which is subject to change in the future, and upon factual representations that may or may not be accurate. This summary does not create a legal or vested right. The pre -application meeting summary is only valid for six (6) months from the date of the written summary. Pre -application Summary Prepared by: ry c&c1 C.�(. 17'1'1 10 Molly Orkild arson, AICP, RLA Date Senior Planner GARFIELD COUNTY Building & Planning Department 108 81h Street, Suite 201 Glenwood Springs, Colorado 81601 Telephone: 970.945.8212 Facsimile: 970.384.3470 www.garfield-countv.com PRE -APPLICATION CONFERENCE SUMMARY TAX PARCEL NUMBER: 2135-321-00-009 DATE: July 13, 2012 PROJECT: Marathon 596-32C Water Storage Impoundment and Material Processing OWNER: Marathon Oil Company and Berry Petroleum Company REPRESENTATIVE: Lorne Prescott, Mike Marcus—Olsson Associates, Melissa Velasquez - Marathon PRACTICAL LOCATION: Approximately 17 miles north of the Town of Parachute ZONING: Resource Lands - Plateau TYPE OF APPLICATION: Substantial Change requiring Limited Impact Review for Material Handling and Water Impoundment I. GENERAL PROJECT DESCRIPTION On January 3, 2011 the Board of County Commissioner (BOCC) memorialized Resolution 2011-04, approving Land Use Change Permit (LIPA) 6377 for the Marathon Oil (Applicant) material handling/water impoundment facility consisting of three produced water impoundment ponds (Ponds D, E, and F) and two existing freshwater ponds (Ponds A and C) and on October 28, 2011 the Planning Department Director approved a "non -substantial change" request for the purpose of converting Ponds A and C from freshwater to produced water, The Applicant now requests approval of Marathon Pond 32C as an amendment to the previously approved Land Use Change Permit. This existing produce water impoundment (Pond 32) is on an existing Marathon well pad (596-32C) situated west of the approved water impoundment facility. Along with the existing 43,700 bbl storage/disposal water impoundment (Pond 32) a 400 bbl condensate tank, and a 500 bbl gunbarrel separator are also located on the well pad. Processed water will be moved by existing pipes from Pond 32 to Ponds A and C. After further review of the approved Marathon produce ponds memoralized under Resolution 2011-04 it has come to the attention of County staff that Pond 32 and its' existing piping is not within the permitted boundaries of this approval Land Use Change Permit. The Planning Director has determined that adding this existing produced water impoundment and piping to the approved permit is considered a "substantial" change and will need to be processed through the Limited Impact Review process for Materials Handling and Water Impoundment. ..:m•x xxeIN= Six aue 1115,,P145 jig E3iW3 el • mix'= :_ ... .r _- - - 3_ _'- x3P":"••°:-c _ csss. -• x. - x:'rc.'s --:.' s. .1 r.�1-£1. "' ms's."::i: = = • iii Y':..w "" - - ..�xx:• s.. ..:.c y� .....x._sri.11�.'. -x- " -'44m.7. 3- a rIliM--r.c.. . r•� sem.... •sem x, s x x -•.s xrax MI. cxa.."..... "xrfx�•x. xr• xx �;.x•sx -. .".... -- �.xrx.�:����'.-_� =w. sem• -x-r� .. Site Plan: Marathon II. REGULATORY PROVISIONS APPLICANT IS REQURED TO ADDRESS • Garfield County Comprehensive Plan 2030 • Garfield County Unified Land Use Resolution of 2008, as amended o Limited Impact Review Process (Section 4-104) o Article 7, Divisions 1, 2 and 3 o Article 7, Section 7-1101 111. REVIEW PROCESS 1. Pre -application Conference. 2. Application. 3. Determination of Completeness. 4. Schedule Public Hearing. 5. Evaluation by Director/Staff Review 6. Schedule Board of County Commissioners Public Hearing. 8. Review and Action by the Board of County Commissioners. IV. SUBMITTAL REQUIREMENTS Limited Impact Review—Table 4-201 lists application submittal materials required including: General Application Materials, Vicinity Map, Site Plan, Erosion and Sedimentation Control Landscape Plan, Impact Analysis, Traffic Study, and Water Supply Plan. Also, respond to requirements in Article 7, Divisions 1, 2 and 3, and Article 7, Section 7-1101. If the Applicant believes some of the standards and/or submission requirements are not applicable or unnecessary, a waiver of standards and submission shall be made as part of the application, see Sections 4-117 and 4-202 of the Unified Land Use Resolution of 2008, as amended. V. APPLICATION REVIEW a. Review by: Staff for completeness recommendation and referral agencies for additional technical review b. Public Hearing: c. Referral Agencies: _ Planning Commission X Board of County Commissioners Board of Adjustment May include Garfield County Road and Bridge Department, Fire Protection Districts, Garfield County Environmental Health Manager, Garfield County Vegetation Manager, Garfield County Consulting Engineer, Town of Parachute. VI. APPLICATION REVIEW FEES a. Planning Review Fees: b. Referral Agency Fees: c. Total Deposit: $ 400.00 $ TBD — consulting engineer/civil engineer fees $ 400.00 (additional hours are billed at $40.50 /hour) General Application Processing Planner reviews case for completeness and sends to referral agencies for comments. Case planner contacts applicant and sets up a site visit. Staff reviews application to determine if it meets standards of review. Case planner makes a recommendation of approval, approval with conditions, or denial to the appropriate hearing body. This pre -application meeting is valid for six months from the date of the pre -application meeting. Disclaimer The foregoing summary is advisory in nature only and is not binding on the County. The summary is based on current zoning, which is subject to change in the future, and upon factual representations that may or may not be accurate. This summary does not create a legal or vested right. Pre -application Summary Prepared by: /1/t/t,a44 62-tadi- (et aw Date Project Description Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 OLSSON ASSOCIATES Marathon Oil Company 32C Produced Water Pond Project Narrative Project Location and Background Marathon Oil Company (Marathon) is seeking approval to convert an existing produced water pond located on a Colorado Oil and Gas Conservation Commission (COGCC) approved well pad (596-32C) to a Centralized E&P Waste Management Facility. Per the Garfield County Land Use and Development Code, Marathon is requesting a Limited Impact Review permit for "Materials Handling and Water Impoundment". The project area is situated in the Resource Land -Plateau zone district. The water to be handled at this facility is produced from drilling, completion and production operations associated with natural gas wells within Marathon's Piceance Basin Operations. Water that is produced from these operations is classified as an exploration and production (E&P) waste by the COGCC. Pursuant to COGCC Rule 908, this facility will also be permitted as a Centralized E&P Waste Management Facility with the COGCC. The existing produced water impoundment is currently permitted as a Form 15 use by the COGCC. Marathon is pursuing permitting for the existing water impoundment as an E&P Waste Management facility and has submitted a Form 28 to the COGCC for their review. All water stored at this location will be from a non -tributary water source within the Williams Fork Formation. The facility consists of an existing 0.7 acre pond graded into mountainous terrain that is located on a 3.5 acre pad site. The existing water impoundment pond is already contained by fence and covered by bird netting. The total working capacity of the water impoundment, allowing for two feet of free board, is currently planned to be 35,279 bbls. If approved, this facility will be utilized 100% by Marathon operations. The facility is located at the 596-32C pad, Section 32, Township 5 South, Range 96 West of the 6th Principal Meridian, Garfield County, Colorado. The facility is approximately 2,140 feet from the western section line and 1,095 feet from the southern section line measured at ninety degrees to the western and southern edges of the pad, respectively. The facility is approximately 11.0 miles northwest of the town of Parachute and 4.4 miles from County Road 215. The proposed Centralized E&P Waste Management facility will allow for effective re -use of water volumes to conserve resources, improve safety and environmental exposure, and reduce costs. Water Impoundment Function and Need 760 Horizon Dr., Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com Marathon Oil Company 32C Produced Water Pond Marathon's proposed 596-32C Centralized E&P Waste Facility has been constructed for the purpose of providing a centralized collection facility of produced water from the production pads in the Piceance field, and assist the operation in managing produced water onsite. In operating this centralized E&P Waste Facility, Marathon's objective is to minimize the need for off-site disposal, and therefore water hauling by tanker truck, particularly in time periods where weather conditions make road and driving conditions challenging. The proposed 596-32C Centralized E&P Waste Facility (32C pond) is composed of a water impoundment supported by separation equipment and associated tanks, a metered pond inlet, and various pieces of supporting and transfer equipment. Currently, the facility is being used primarily as a storage facility to meet the needs outlined above. Several methods of disposal are available or may be considered in the future, including mechanical and thermal evaporation, beneficial reuse, and water treatment technologies that would provide for additional evaporation or discharge, pending approved permits. The water would mostly be used for completions activities when Marathon undertakes significant drilling in the area. Water treatment facilities are currently being reviewed and are not currently in place at the facility. Water treatment would allow for additional opportunities to manage water onsite, and could possibly include enhanced evaporation of treated water or brine, beneficial reuse, and discharge, pending applicable permits. The proposed water treatment equipment will consist of a series of skid mounted filters plus two 400 bbl storage tanks as depicted on the site plan. The skid mounted filtering equipment may be located on the site or removed to be used or stored off-site as determined by field operations. The exact treatment process and level of treatment will be determined by the intended use of the water. It is anticipated that all equipment associated with this treatment process will be exempt from CDPHE air quality permitting due to the limited emissions it will generate. Any treated water will be reused in the field and will not increase the traffic on the public road system beyond what is anticipated in the basic traffic analysis. The storage building will protect tools and equipment that will remain on site to service any treatment facility and the water impoundment. The ability to temporarily store water at this location has several key benefits: Reduced trucking/improved safety Use of engineering controlled transfer system Reduction in volumes of disposed water Conservation of freshwater Reduced road maintenance Overall reduction in development and operating costs Water Treatment to allow beneficial reuse of the water Project Narrative Page 2 Marathon Oil Company 32C Produced Water Pond Details of this request along with the information required by Garfield County's (GARCO) Limited Impact Review (LIR) application are provided within the context of this submittal. The following equipment will be utilized at this facility: Pond Specifications: 300' x 100' x 14.5, Working Capacity (2 ft. below full capacity): 35,279 BBL , Max Capacity: 44,861 BBL Liner. Material: Bentonite mats and Reinforced Polyethylene (RPE), Number of Liners: 2, 60 mil each Gun Barrel tank: Material: Steel and Coating: 100% internally, Size: 12' x 25', Design Pressure: 16 oz, Capacity: 500 BBL Condensate Tank: Material: Steel Coating: 100% internally, Size: 12' x 20', Design Pressure: 16 oz, Capacity: 400 BBL Water Tanks: Material: Steel, Size: 12' x 20', Design Pressure: 16 oz, Capacity: 400 BBL Condensate Tank: Material: Steel, Size: 12' x 20', Design Pressure: 16 oz, Capacity: 400 BBL 3 -Phase Separator: Material: Steel, Size: 20" x 8', Design Pressure: 1,000 PSI, Gas Capacity: 4 MMSCFD @ 200 PSI, Gas Capacity: 6 MMSCFD @ 400 PSI, Water Capacity: 1560 BPD, Condensate Capacity: 1080 BPD Proposed Water Treatment Equipment: o Water Treatment Building: Size: 15' x 30' x 10' o Storage Building: Size: 10' x 15' x 10' o 2 Water Tanks: Material: Steel, Size: 12' x 20', Capacity: 400 BBL Project Submittal Summary The water impoundment property is jointly owned by Marathon Oil Company, Berry Petroleum, PGR Partners, LLC, and Wapiti Oil & Gas, LLC, but Marathon Oil Company reserves full rights for one hundred percent usage of the facility. Copies of deeds demonstrating ownership of this property are contained in the General Application Materials section. As part of the GARCO LIR approval process, proper notification will be provided to all appropriate landowners and mineral owners. The list of landowners and mineral owners that will be sent certified letters informing them of the proposed project and hearing dates is included as part of the overall GARCO LIR submittal package. The design for the proposed water storage facility is provided in the facility site diagram and construction documents. Stormwater management protections, specific best management practices (BMPs) and other drainage controls have been designed into the facility as shown on the Grading Plan and Construction Erosion Control Plans. Marathon will utilize this facility during daylight operating hours, and it will be unmanned with the exception of personnel accessing the facility for periodic maintenance, monitoring and water Project Narrative Page 3 Marathon Oil Company 32C Produced Water Pond hauling truck access. The facility will have restricted access. A Basic Traffic Analysis of the traffic anticipated to be generated by this project is provided in the Traffic Study section. No additional mobilization of heavy equipment will be required for this location. All vehicles hauling equipment and material on county roads will abide by Garfield County Road and Bridge's oversize/overweight regulations. The proposed water storage facilities will comply with all of Marathon's safety practices including emergency response procedures. No flammable or explosive materials will be stored on site. A copy of Marathon's Emergency Response Plan, which includes emergency contact numbers, is provided with this submittal. A Stormwater Management Plan (SWMP), detailing the use of site-specific Best Management Practices (BMPs), has been prepared for this site and a copy of the construction permit and continuation letter issued by the Colorado Department of Public Health and Environment (CDPHE) are provided in this application. Implementation of the SWMP and the appropriate BMPs will ensure that activities conducted at the site comply with stormwater management regulations as required by Garfield County, the State of Colorado, and the United States Environmental Protection Agency. Implementation of these plans also ensures that construction and operation of this facility will not impact surface runoff, stream flow, or groundwater. Water level detection and alarm systems have been installed at this location in order to prevent an accidental release. As required by COGCC rules, all spills and releases from this facility will be reported to the COGCC in accordance with Rule 906. In the event that a reportable spill or release does occur, Marathon will make notifications as required by the COGCC. A Weed Management Plan is included. In addition to the measures that are outlined in this plan, Marathon will implement other measures to prevent infestation of noxious weeds. These measures include seeding cut and fill slopes around the facility to re-establish native vegetation. The potential impacts to wildlife from this facility are anticipated to be negligible as discussed in the Wildlife and Sensitive Areas Report provided as part of this application. The remote location of this facility and the type of operations that will occur should eliminate many of the other impacts required to be addressed in this application. The vast majority of the produced water will be delivered to and from the facility via an existing pipeline. No smoke, vibration, heat, radiation or fumes will be produced as a result of the operation of this facility. A CDPHE air permit is in place for the facility and has been provided as a component of this submittal. Any potential air quality impacts associated with naturally occurring evaporation or from enhanced evaporation from the produced water ponds will be evaluated and the appropriate notices and/or permits will be filed with the CDPHE, if required. Minimal glare would be produced from the ponds' surface and thus will not be detectable at the property boundary. The topography surrounding the site acts as a visual barrier in most directions, and the site will not be visible from any public roads. Lighting needs will mainly be addressed with portable lighting (light plant). Project Narrative Page 4 Marathon Oil Company 32C Produced Water Pond Lighting will only be required during pumping operations and unscheduled nighttime maintenance. All portable lighting on the property will be pointed downward and screened to prevent direct reflection on any adjacent property. The facility will be operated in compliance with the noise standards set forth in the Colorado Revised Statutes. Adjacent property will not be affected and a public nuisance or hazard will not be created. It is not anticipated that operation of the pumps at the facility will create a nuisance but, if one does occur, Marathon will take appropriate measures to reduce the noise from the pumps. Adjacent property will not be affected and a public nuisance or hazard will not be created. The facility will be operated for the life of the gas wells in the area. This is currently estimated to be 20 years or more. At the end of the economic life of wells in the area supplying water to the facility, the site will be reclaimed by removing all surface facilities, grading to restore original contours, replacing topsoil, and revegetating the reclaimed area as outlined in the reclamation plan. Permit Required Responsible Regulatory Agency Status Land Use Change Permit Garfield County Limited Impact Review Application Form 28 - Centralized E&P Waste Facility COGCC Form submitted 6/28/13; Approval conditioned on LIR approval Air Quality Permit CDPHE Permit 09GA0337 issued 9/11/2012, included in LIR application package Stormwater Permit CDPHE Permit COR03C052 issued 7/1/2007; administratively continued 6/21/2013; included in this package. Project Narrative Page 5 Vicinity Map Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 if It • ../f/J'clia I. II 10 Vir 3 -mile radium indicated by dark red circle Pam -4r Legend 32C Water Impoundment =Parcel 213532100009 (880 Acres) r i Parcels 03 -mile Radius 0 0.5 1 2 Miles N s PROJECT NO: 012-1372 DRAWN BY: Jenna Muhlbach DATE: 7/18/12 VICINITY MAP 32C WATER IMPOUNDMENT MARATHON OIL COMPANY GARFIELD COUNTY, COLORADO CYS1 OLSSON ASSOCIATES 826 21-1/2 ROAD GRAND JUNCTION, CO 81505 TEL 970.263.7800 FAX 970.263.7456 FIGURE V-1 Site Plan Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 100 50 0 SW COR. SEC. 32 USGLO 1917 2.5' BRASS CAP 9 ON 2" POST 50 0 50 GRAPHIC SCALE IN FEET 1 INCH = 50 FEET 700 6'‘61:" 16 �" Ei 2238? rt MARATHON OIL COMPANY 596-32C PRODUCED WATER POND CENTRALIZED E & P WASTE MANAGEMENT FACILITY SW 1 /4 OF SECTION 32, TOWNSHIP 5 SOUTH, RANGE 96 WEST OF THE 6TH PRINCIPAL MERIDIAN, GARFIELD COUNTY, COLORADO / / / / / / i i / 5 7213 / S32_- - / / 6.12 `, 0' j - — _ - � � -, ` / � / / ,/ r 4® g30U ( \N6j ENTERP 1O'O / % � EXCESS = �� • �9�'`� RE` NE , i A / �� MATERIAL ti 834p�A/�' / `s32• APPRC GA1 MARA. PA0 AU T. IN CA 866— • / / • / - Q /i I rn I1 1 A ---- I / / / 833 . /,� ni__)/1):1,--_--"---::.:;„:„--_-----_-- ____'- -< ,_ ___ ___,:c_. ...„,/_T 7 :,,,,,,,,_ii, i L a „ / - TOE OF SLOP 1 1 ,� I71 ri il I 1 Ill I • I I • f . - — - - _ _ Y= __ � 4-.. " �� 1 �, i•i I / ENTERPRISES` _ _- — — /I rr / / • Ai' I �I LAUNCHER AND lila'1 I I1 METER SHACK rl / II I tri 1 1 Ib \'— MONITOR WELL: MW4 r I' 1r f rl l 1`rlI i, 4 I I // / ;/ ;1 I Ir1r/ o 1` h 'irii 1 - / f!NFtcc I -(. I _ ,bIh/ rN/r OI I I if r fr, ``. !8350' 1 1 I 1 / l I HYDROMULCHED & SEEDED OCTOBERI • 21, 2011 PER STORMWATER PLAN IV o- i 1 r 1JJ11 I I I r • •' 1 I l 1 1 • I • • 10 Yl I Y! I V I °' 11•J: 1• SUPE. 11 I1 / PROPOSED TANKS_ 12'X20' 400BBL 1 APPROXIMATE 10'X15' CONCRETE PAD j MONITOR : MW3 , LG r-, �o . -I \ /a , 0 \moo UNDERGROUND£ �cn ELECTRIC PROPOSED 15'X30'X10' WATER TREATMENT UNIT PROPOSED 10'X15'X10' STORAGE UNIT LATITUDE: 39°34'03" NORTH LONGITUDE: 108°11'38" WEST ELEVATION: 8333.4' 411 I I1 9 0 I 11 � (BII I i I 11 11 kill I' 1 I I 1 1.1 1111'1'11 Al I 1 I 1 1 1 1 1 1 M1, l- ief I II;41Y yl 1 :.. 1 1 1 1 1 � I I �. I 1 1�/ I d I I11 I ;. 1+ 11 } '1 ''� �r��� I i ( 1' � I 1 � 1 1` o%Y 1 I I 111 i. co \ I o. iil t II TOP OF BERM 1 V Iti I�� I� I I ..IB 11 X11 14 4 I I I I� / ' I r I 1‘ 1111 i I II;I° l r r I 1 i'r i l 1 I',Jill l' rn I 1 1 l r 1 1 i I I 11 / r /d / I I I n it ( r ) R1; 1....ii LY 1 , 1 I ( 141_ _ / UNDERGROUND GAS PIPELINE x CONCRETE PAD S AR PANEL BLD. 7 /— I 12 MW2 TOWER 6 -STEEP STABL!ZED ROCK SLOPE. / - _ _ WELL lt/ELL I 5%-96-32A-18, 6—,52 A-18 1 1 I I1 596-32C-25 I ALVECAN c CONTAINMENT RING / HEATER / SEPARATOR ELEC. BOXES 13/1 11 / fir/ /.� _ ^) / / /q ,/ / / 0 / S 8'5 / , 1 r / o� / / ' / / / /' 1 2'15" �. , I •DITCH' / / ti �,�,� SITE BOUNDARY ' // . / , �{ TANKS VALVE � CANS— l/`P,\\�/ /wd83'+w_ ii+i, K, r/jLPi\ \ �• --- --- i ,j;i'JI' wW/W -4, _se.- W IW1163S;`�I\`-� —— Iii `-, / I 1 i , 'sk_I,�^.����i/ if It I'+/+/wP-,*/i1 r- \ 1 ull l `MONIT04 WELL: yr(' 1 111 / ill l f1 l ko�--- _�_lllr j POINT OF MW1 STABLIZED WITH* .4,/ /4711) 4 I1 1 NATIVE SEED. ,' p5 9 \ ti\ \\W \w\ + W 7 / t, / 13. \ W . - *- — ' `' / / , , , , I •</ 4r ' BEGINNING 1,7" / I 1 / EXISTING PAD ELEVATION: 8333.4' INSET "A" PROFILE VIEW FROM SOUTH EDGE OF PAD LOOKING NORTH CONDENSATE Ca ccn z o_ , 0 CO 0m z z 0. 00 0 (S h 1 l0 I I ▪ ", 7m r')� N0 In 0 0 ~ SC � QO 0,1-, NzO ¢Q I— v I-31 1 1— • - I—co 51/4 SEC. 32 USGLO 1917 19 2.5" BRASS CAP ON 1" POST / / / 1 / 1 / / /1 1/76TH LIA NORTH SOUTH CENTER LINE 48" X 48" WELL PAD SIGN 59E SESW S32 T55 R961' GARFIELD COUNT ACCESS OFF OF GARDEN GULCH E. IN CASE OF EMERGENCY 1-866-662-2378 AND/C MARATHON OIL COMPANY SAFETY FIRST/ CAUTION HAZARDOUS AREA AUTHORIZED PERSONNEL ONLY MONITOR REQUIRED PERSONAL CAUTION PROTECTION EQUIPMENT REQUIRED CAUTION LOCKOUT BEFORE SERVICING EQUIPMENT CAUTION SAFE WORK PERMIT REQUIRED FOR HOT WORK DANGER FLAMMABLE GAS NO SMOKING NO OPEN FLAMES NOTICE AUTHORIZED PERSONNEL ONLY. THE USE OR POSSESSION OF ILL. DRUGS, DRUG PARAPHERNALIA, ALCOHOLIC BEVERAGES, FIREARM WEAPONS BY ANYONE WHILE ON MARATHON OIL COMPANY OWNE LEASED PROPERTY IS PROHIBITED. ALL VEHICLES AND PERSONN WHILE ON COMPANY PROPERTY IS SUBJECT TO SEARCH AT ANY IN CASE OF EMERGENCY CALL 1-866-682- Grading and Drainage Plan Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 O\OLSSON ASSOCIATES 4-203 E Grading and Drainage Plan Criteria Marathon Oil Company Pond 32C - E & P Waste Management Facility This document is intended to assist in the review of the grading and drainage for this facility and should be used in conjunction with the Final Drainage Report, site plan, the 9 page Plan Package, and the SWMP. The Grading and Drainage Plan shall include the following elements: 1. Site Map. A Site Map showing locations of any existing structures, Waterbodies or hydrologic features on the site, including intermittent water features, Wetlands, and the 100 -year Floodplain boundaries. The Location Map includes a listing of the hydrologic features in the area. There are no streams, wetlands, or 100 -year floodplain boundaries within the project site itself. The site is located on a relative high point as illustrated by the contours within the Site Plan. The physical structures at the site are labeled on the Site Plan. 2. Drainage Structures. a. Locations of existing and proposed drainage structures or natural drainage features affecting site drainage on the parcel and within 10 feet adjacent to the site boundary, including street gutters, storm sewers, drainage channels, and other water conveyance structures; and Wetlands or other Waterbodies receiving storm Runoff from the site. The site is located on a relative high point. A small portion of off-site drainage sheet flows towards the site. The topography is such that the stormwater cannot be diverted, therefore, this stormwater is accounted for with the Drainage Report. The basin can be seen within the Drainage Summary. Otherwise stormwater drains away from the site. b. Preliminary engineering design and construction features for drainage structures to be constructed. No drainage structures are required to be constructed. Stormwater from off-site and on-site is discussed within the Drainage Report. 3. Topography. Existing topography at reasonable contour intervals to provide necessary detail of the site. The map should extend a minimum of 10 feet beyond the property line and show the location of the property line. 760 Horizon Dr., Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com Marathon Oil Company Pond 32-C The existing topography is shown on both the Site Plan and the Grading Plan and Pond Sections. The topography is shown at 1 foot contour intervals. 4. Grading Plan. A grading plan showing the proposed topography at reasonable contour intervals that provides necessary detail of the site. The plan shall show elevations, dimensions, location, extent, and Slope of all proposed clearing, and Grading including building site and driveway grades. The proposed grading is shown on the Grading Plan and Pond Sections. No additional grading is anticipated. Detailed spot elevations of the improvements are shown to illustrate the changes. Sections of the pond are included to show the slopes of the proposed grades. The contour interval is 1 foot. In addition a Roadway Plan and Profile sheet was developed to illustrate the existing grades of the access road. No improvements to the roadway are anticipated. 5. Soil Stockpile and Snow Storage Areas. Probable locations of soil stockpiles and snow storage areas. No new soil stockpiles are anticipated due to the minor levels of earthwork required. Existing soil stockpiles are stabilized with a native seed mix and will be used for the final reclamation of the pad after all the existing and any future gas wells no longer produce. An area of snow storage is shown on the Site Plan. 6. Drainage Plan. Proposed drainage plan. A Final Drainage Report is included with the submittal. A Drainage Summary is included with the plan package. 7. Equipment Storage Areas. Location of storage areas designated for equipment, fuel, lubricants, chemical, and waste storage with an explanation of spill containment structures. Equipment storage is not anticipated at this location. 8. Temporary Roads. Location of temporary roads designed for use during the construction period. No temporary roads are anticipated with the construction. Existing roadways will be utilized. 9. Areas of Steep Slope. Areas with Slope of 20% or greater shall be identified by location and percentage of Slope, both for the existing site conditions and within the developed area. The areas of steep slope are labeled on the Site Plan. 10. Construction Schedule. Construction schedule indicating the anticipated starting and completion time periods of the site Grading and/or construction sequence, including the installation and removal of erosion and sediment control measures, and the estimated duration of exposure of each area prior to the completion of temporary erosion and sediment control measures. The construction schedule includes 16 weeks including mobilization and demobilization. Stormwater management is ongoing at the site and throughout the field. Therefore, stormwater management is negligible in the schedule. Grading and Drainage Plan Criteria Page 2 Marathon Oil Company Pond 32-C 11. Permanent Stabilization. A brief description of how the site will be stabilized after construction is completed. Grading at the site is limited to within the pond. Upon completion, a synthetic pond liner will be placed within the pond. This is illustrated within the Anchor Trench and Pond Liner Details. The pond liner will serve as stabilization for the proposed grading. 12. Erosion Control Measures. Plan view drawings of all erosion and sediment control measures showing approximate locations and site drainage patterns for construction phases and final design elements. Text may be necessary to accompany and explain the drawings. Typical erosion control measures should be depicted using standard map symbols. An active stormwater management plan is implemented by Marathon throughout their field. This site is included within that plan. Erosion Control Measures for the area can be seen within the Stormwater Management Plan (SWMP). Erosion control measures for the planned earthwork are not required since the activity is within the pond. 13. Estimated Cost. Estimated total cost, including installation and maintenance, of the required temporary soil erosion and sediment control measures. An estimated construction cost of $2, 000.00 for temporary soil and erosion control measures was determined. This was used to improve drainage and prevent water from collecting and entering the pond. This site is stabilized and inspected on a monthly basis to determine if any maintenance is required for compliance with COGCC rules. 14. Calculations. Any calculations made for determining rainfall, Runoff, sizing any sediment basins, diversions, conveyance, or detention/retention facilities. Calculations are included within the Final Drainage Report. 15. Neighboring Areas. A description of neighboring areas with regard to land use and existing pertinent features such as lakes, streams, structures, roads, etc. A description of the nearby water features is included within the Drainage Report as well as labeled on the Location Map. The surrounding land uses are all related to oil and gas operations. 16. Stormwater Management. A description of the stormwater management planning concept for the site, including both structural and nonstructural best management practices. An electronic version of the SWMP is included with this submittal. 17. Stormwater Management Plan. Copy of the stormwater management plan application to CDPHE with date of submittal. An electronic version of the SWMP is included with this submittal. 18. Reclamation Plan. A reclamation plan consistent with the standards in section 7-207. Grading and Drainage Plan Criteria Page 3 Marathon Oil Company Pond 32-C A reclamation plan is not required per code section 7-208 since the site is currently stabilized. The earthwork is limited to within the pond. The pad also contains existing natural gas wells and has the potential of additional wells that would significantly extend the life of the well pad. 19. Hydraulic Calculations. Hydrologic, hydraulic, and all other calculations used to size and design drainage facilities and/or structural BMPs. Hydraulic Calculations are shown within the Drainage Report. 20. Maintenance Requirements. Maintenance requirements for all proposed BMPs should be discussed including access, schedules, costs, and designation of a responsible party. Maintenance Requirements are shown within the SWMP. 21. Spill Prevention Control and Countermeasures Plan, if Applicable. A SPCC Plan will be required for any facility with the potential to discharge oil of any kind or in any form including, but not limited to, petroleum, fuel oil, sludge, oil refuse and oil mixed with wastes, in quantities that may be harmful to navigable water and adjoining shoreline, per EPA regulations. Spill Prevention Control and Countermeasures Plan (SPCC) for this facility is included with the application. 22. Additional Information or Detail. Other information or data and additional detail as may be reasonably required by the Director. Additional detail of the project is included within the plan package. 23. Signature Blocks. Signature block for owner or legal agent acknowledging the review and acceptance of responsibility, and a signature and stamped statement by the qualified individual acknowledging responsibility for the preparation of the Grading and Drainage Plan. The plans within the plan package as well as the Final Drainage Report are signed and sealed by a Colorado registered professional engineer. Grading and Drainage Plan Criteria Page 4 FINAL DRAINAGE REPORT MARATHON OIL COMPANY WATER IMPOUNDMENT GARFIELD COUNTY, COLORADO PREPARED FOR: MARATHON OIL COMPANY 743 HORIZON CT., STE 220 GRAND JUNCTION, CO PH: (970) 244-5743 CONTACT: ERIC WARD PREPARED BY: OLSSON ASSOCIATES 826 21 1/2 ROAD GRAND JUNCTION, CO 81505 PH: (970) 263-7800 CONTACT: JEFF HOFMAN WYATT E. POPP, PE, LEED AP FEBRUARY 5, 2013 REVISED SEPTEMBER 12, 2013 REVISED NOVEMBER 22, 2013 OLSSON ASSOCIATES PROJECT No. 012-1372 O‘OLSSON ASSOCIATES DRAINAGE REPORT ENGINEER'S STATEMENT I hereby certify that this Final Drainage Report lot the design of Marathon Oil Company Water Impoundment was prepared by me, or under my direct supervision, in accordance with the sound engineering practices for the owners thereof. I understand that Garfield County does not and will not assume liability facilities designed by others. Wyatt E Popp, PE Registered i- rofessio State of Colorado No Date OWNER'S STATEMENT , 144r, , hereby certify that the drainage facilities for Marathon Oil Company Water impoundment shall be constructed according to the design presented in this report. 1 understand that Gar -Field County does not and will not assume liability for the drainage facilitk= designed and/or certified by my engineer. I understand that Garfield County reviews drainage plans but cannot, on behalf of j i .re.f n ) i , guarantee that final drainage design review will absolve wise �,( �c.►+�+`.s+ and/or their successors and/or assigns of future liability for improper design. 1 further understand that approval of the Final Plat and/or Final Developrnent Plan does not imply approval of my engineer's drainage design. + ! NroP y Owner/Developer 0 Authorized Signature Date Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 DRAINAGE REPORT TABLE OF CONTENTS I. INTRODUCTION 1 A. Background 1 B. Project Location 1 C. Property Description 2 D. Previous Investigations 2 II. DRAINAGE SYSTEM DESCRIPTION 2 A. Existing and Proposed Drainage Conditions 2 B. Offsite Tributary Area 3 C. Master Drainage Plan 3 D. Drainage Facility Maintenance 3 III. DRAINAGE ANALYSIS AND DESIGN CRITERIA 3 A. Regulations 3 B. Development Criteria 3 C. Hydrologic Criteria 3 D. Hydraulic Criteria 4 IV. POST -CONSTRUCTION STORMWATER MANAGEMENT 4 A. Stormwater Quality Control Measures 4 V. CONCLUSIONS 4 A. Compliance with Manual 4 B. Compliance with Colorado Oil and Gas Conservation Commission Criteria 4 C. Design Effectiveness 5 D. Areas in Flood Hazard Zone 6 VI. REFERENCES 6 APPENDIX A: MAPS AND EXHIBITS APPENDIX B: PREVIOUS FORM 15 APPENDIX C: HYDROLOGIC CALCULATIONS APPENDIX D: WATER IMPOUNDMENT POND CALCULATIONS Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 DRAINAGE REPORT I. INTRODUCTION A. Background This Final Drainage Report has been prepared by Olsson Associates for Marathon Oil Company's proposed water impoundment pond, located at Pad 596-32C (the SITE). This report evaluates the SITE's existing drainage patterns, analyzes the change in stormwater quantity/quality associated with proposed development, and provides design to alleviate the impacts of increased stormwater runoff due to the proposed development. B. Project Location The SITE is located in the SE 1/4 of the SW % of Section 32, Township 5 South, Range 96 West of the Sixth Principal Meridian, County of Garfield, State of Colorado. The SITE is approximately 2,140 feet from the western section line and 1,095 feet from the southern section line measured at ninety degrees to the western and southern edges of the pad, respectively. The SITE is approximately 11.0 miles northwest of the town of Parachute and 4.4 miles from County Road 215. Refer to Figure 1 for project location. Figure 1: Vicinity Map Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 1 DRAINAGE REPORT C. Property Description The SITE is jointly owned by Marathon Oil Company, Berry Petroleum, Wapiti, and PRG, but Marathon Oil Company reserves full rights for one hundred percent usage of the facility. The SITE consists of an existing 0.7 acre water impoundment pond that was previously graded into mountainous terrain that is located on an existing approximate 3.5 acre pad site. The SITE owner plans to upgrade the SITE into a permanent water impoundment facility. The topography is generally flat and drainage from the SITE travels to the southwest corner where a shallow depression is located. According to the NRCS Web Soil Survey, soils in the area of the SITE consist of Parachute-Irigul complex and Parachute-Irigul -Rhone association, which are both classified as hydrologic soil group Type B. A soil map from NRCS is included in Appendix A. D. Previous Investigations A Form 15 report was prepared for the existing SITE. The form is included in Appendix B. II. DRAINAGE SYSTEM DESCRIPTION A. Existing and Proposed Drainage Conditions The existing water impoundment pond is located at the northeast corner of the pad site. The proposed water impoundment is in the same footprint and will maintain the same drainage pattern. Of the remaining pad area, the majority eventually drains to Little Creek and a portion of the southeast corner eventually drains to House Log Gulch. Refer to the General Location Map in Appendix A for the SITE location relative to major tributary drainageways. The existing SITE consists of a pad graded into mountainous terrain. The existing SITE was graded such that the west side of the SITE was filled and the east side of the SITE, including the water impoundment pond, was cut into the existing slope. The SITE is generally flat and does not drain; therefore, it is assumed that negligible flow will reach the water impoundment pond on the west and south sides. A small area to the north and east of the water impoundment pond will flow into the water impoundment berm. The proposed improvements to the water impoundment pond will not affect the hydrology of the SITE; therefore, the existing peak flow rates match the proposed peak flow rates. Two basins were used to model the SITE as it relates to the existing/proposed water impoundment pond. The area for the water impoundment pond will be excluded in the overall discharge analysis. Basin NE is the area to the north and east of the water impoundment pond that will flow directly to the water impoundment pond. Basin SW is the area to the south and west of the water impoundment pond that is generally flat. Runoff drains to a shallow depression in the southwest corner of the SITE. A fairly flat slope was used to estimate the peak flows; however, in reality, negligible flows will reach the water impoundment pond. Peak flow rates are listed in Table 1, and calculations of each flow rate are presented in Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 2 DRAINAGE REPORT Appendix C. Table 1: SITE Peak Runoff (Existing and Proposed) Design Point 10 -YR Peak Flow (cfs) 100 -YR Peak Flow (cfs) NE SW 0.18 0.33 1.32 2.40 B. Offsite Tributary Area The SITE will not be adversely affected by stormwater from adjacent land, since the water impoundment pond is self-contained and without an outlet. For the purposes of this study, all adjacent land was assumed to remain undeveloped in the foreseeable future. Run-off from the SITE was considered only for the water impoundment area, since the rest of the SITE will remain in its existing condition. Because the water impoundment is self- contained, there will be no additional run-off from the SITE. C. Master Drainage Plan To our knowledge, no master drainage studies have analyzed the SITE. D. Drainage Facility Maintenance The owner shall be responsible for maintaining all on-site drainage facilities. In addition, the water impoundment pond should be examined after any significant rainfall event to ensure proper functionality and maintain the required freeboard. III. DRAINAGE ANALYSIS AND DESIGN CRITERIA A. Regulations This report has been prepared in accordance with common engineering practices and the Urban Drainage and Flood Control District's Urban Storm Drainage Criteria Manual. B. Development Criteria There are no known constraints placed on the SITE due to floodplain studies, master studies or adjacent property drainage studies. The SITE will not receive any tributary flows from upstream land or adjacent development. C. Hydrologic Criteria Hydrologic calculations have been prepared in accordance with common engineering practices. Refer to Appendix C for all hydrologic calculations. Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 3 DRAINAGE REPORT D. Hydraulic Criteria Hydraulic calculations have been prepared in accordance with common engineering practices and the Urban Drainage and Flood Control District's Urban Storm Drainage Criteria Manual. IV. POST -CONSTRUCTION STORMWATER MANAGEMENT A. Stormwater Quality Control Measures Stormwater quality control measures will not be needed because developed run-off rates are equivalent to existing condition run-off rates with no change in impervious area. V. CONCLUSIONS A. Compliance with Manual This report has been prepared in accordance with common engineering practices and the Urban Drainage and Flood Control District's Urban Storm Drainage Criteria Manual. B. Compliance with Colorado Oil and Gas Conservation Commission Criteria 100 -Year Run-on Diversions The small peak flows (0.33 cfs) that reach the water impoundment pond do not warrant construction of formal swales around the water impoundment pond. The north and east sides of the water impoundment pond have an approximate 10 -foot buffer from the berm to the toe of slope. This site constraint does not leave room for the creation of stormwater swales around the pond. In addition, the existing bird netting posts around the pond and bedrock close to the surface make it very difficult to construct any improvements on these two sides. The south and west sides of the water impoundment pond have an approximate 130 -foot and 165 -foot flat area, respectively, which provides inadvertent detention. There are many utilities located in the flat areas, making pad grading difficult. If any improvements are completed in the future, it is recommended that fine grading be completed to drain the pad to the north and to the south to avoid ponded water on the pad site. Because the area is so flat, negligible water will reach the existing water impoundment pond, making construction of a formal swale unnecessary. 25 -Year Run-off Control The existing water impoundment pond is self-contained without an outlet; therefore, no run- off is present. Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 4 DRAINAGE REPORT Fire Access Fire access can only be achieved on two sides of the water impoundment pond due to the location of the water impoundment pond relative to the steep side slopes. A variance from criteria is requested for this criteria. The entire water impoundment pond can be accessed from the available sides. In addition, fires can be addressed from above. The fire access on the south and west sides of the water impoundment pond shall be a graveled surface. Fencing and Bird Netting The existing water impoundment pond was contained by fence and bird netting, as shown in Photos 1 and 2. No additional fencing is necessary, as the fencing will be replaced in kind. The fencing and netting will be extended to the steep slopes on the north and east sides of the pond in proposed conditions. Photo 1 Lining Photo 2 The existing water impoundment pond was lined with two high density polyethylene (HDPE) liners, both 60 mil thick, and had a leak detection system installed. Water impoundment pond calculations are included in Appendix D. C. Design Effectiveness Proper implementation of the proposed measures outlined in this report will alleviate the direct impacts of stormwater run-off on adjacent, downstream lands. The quantity of stormwater released from the SITE will be equivalent to existing conditions. A registered licensed engineer in the state of Colorado should be consulted for the reparation of construction plans related to the recommendations outlined within this report. Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 5 DRAINAGE REPORT D. Areas in Flood Hazard Zone The SITE is within a FEMA -designated Zone D, areas of undetermined flood hazards. Refer to the FIRM Panel in Appendix A for the SITE location relative to FEMA designated flood plains. VI. REFERENCES 1) Stormwater Management Manual, City of Grand Junction and Mesa County 2) Urban Drainage and Flood Control District Urban Storm Drainage and Criteria Manual, Vols. 1-3 Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 6 DRAINAGE REPORT APPENDIX A: MAPS AND EXHIBITS Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 DRAINAGE REPORT APPENDIX A TABLE OF CONTENTS Hydrologic Soil Group (HSG) Information - HSG map, legend, and description. HSG information is used in the hydrologic calculations General Location Map - Project location shown on topographic map FIRM Panel - Project location shown on FIRM panel to demonstrate no floodplains are impacted Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 39° 34' 8" 39° 33' 57" 0 N CO 108° 11' 52" 740;750 740800 Hydrologic Soil Group—Douglas-Plateau Area, Colorado, Parts of Garfield and Mesa Counties (596-32C) 740p50 740900 7401950 741,000 741050 741100 741150 O N 0 co V V • V O O O J O NAli N CO� A -M 00 M M a a N ccoo 108° 11' 52" 740750 740800 740850 Map Scale: 1:2,300 if printed on A size (8.5" x 11") sheet. 740900 740950 Meters 0 30 60 120 180 Feet 0 100 200 400 600 USDA Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 741000 741050 741100 741150 0) 39° 34' 7" O co 39°33'57" V 7/3/2012 Page 1 of 4 Hydrologic Soil Group—Douglas-Plateau Area, Colorado, Parts of Garfield and Mesa Counties (596-32C) MAP LEGEND MAP INFORMATION Area of Interest (A01) Map Scale: 1:2,300 if printed on A size (8.5" x 11") sheet. Area of Interest (AOI) Soils Soil Map Units Soil Ratings 0 A 0 ND 0 0 B/D 0 0 C/D 0 Not rated or not available Political Features 0 Cities Water Features Streams and Canals The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for accurate map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: UTM Zone 12N NAD83 This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Douglas -Plateau Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 5, Feb 1, 2008 Date(s) aerial images were photographed: 8/29/2005; 6/30/2005 Transportation The orthophoto or other base map on which the soil lines were +++ Rails compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting rY Interstate Highways of map unit boundaries may be evident. US Routes Major Roads r - Local Roads USDA Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/3/2012 Page 2 of 4 Hydrologic Soil Group -Douglas -Plateau Area, Colorado, Parts of Garfield and 596-32C Mesa Counties Hydrologic Soil Group Hydrologic Soil Group— Summary by Map Unit — Douglas -Plateau Area, Colorado, Parts of Garfield and Mesa Counties (C0682) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 55 Parachute-Irigul complex, 5 to 30 percent slopes B 6.0 26.3% 56 Parachute-Irigul-Rhone association, 25 to 50 percent slopes B 16.8 22.7 73.7% 100.0% Totals for Area of Interest Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (ND, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition USDA Natural Resources raja Conservation Service Web Soil Survey National Cooperative Soil Survey 7/3/2012 Page 3 of 4 Hydrologic Soil Group—Douglas-Plateau Area, Colorado, Parts of Garfield and 596-32C Mesa Counties Component Percent Cutoff: None Specified Tie-break Rule: Higher L' DA Natural Resources Web Soil Survey 7/3/2012 Conservation Service National Cooperative Soil Survey Page 4 of 4 f„, Sin Zw w o <- 0 in 0 intail) J Q www.oaconsulting.com 0,1 N rN (0 CO 0.1 N or) Cti o 0 J W I—LL r wee - 4.• NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. 0111 before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGG NG, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES v '. 6 II�t <e4 15191 ilf.° Meta USER: ogobor 00 1 H Z W i 2 z0 D 2 O0 aO a'O W Z H Q U Q M 2 (h 0 L() drawn by: checked by: approved by: QA/QC by: project no.: 012-1372 d rawi ng100372_LOCAT ION_MAP.dwg date: 07.24.2012 AMG WEP WEP WEP SHEET 1 of 1 4-111 __ _ 050850B *080205087513 *0802050900B mar mr *0802050925B *080 `PANEL NOT PRINTED - ALL ZONE D **PANEL NOT PRINTED - ALL ZONE X **PANEL NOT PRINTED - THIS AREA IS SHOWN ON ANOT 08020518858 15 SHOWN ON 080: *0802051275B *0802Q513008 1.6 Town of Parachute (AREA NOT INCLUDED} *13056 131513.:-.0 ,dor G4 *1310B *1320B *0802 White National *0802051675B �o 0 s 2E051700B 17056 *1710B *1715B ter". J• x:0802 *17208 Gx MAP INDEX FIRM FLOOD INSURANCE RATE MAP GARFIELD COUNTY, COLORADO (UNINCORPORATED AREAS) MAP INDEX PANELS PRINTED: 1043, 1045, 1091, 1351, 1352, 1353, 1434, 1445, 1453, 1855, 1856, 1857, 1880 955, 964, 965, 1015, 1092, 1111, 1315, 1354, 1431, 1432, 1465, 1470, 1705, 1858, 1859, 1870, MAP NUMBER 0802051NDOA MAP REVISED AUGUST 2, 2006 Federal Emergency Management Agency Nati This is an official copy of a portion of the above referenced flood map. it was extracted using F -MIT On -Line. This map does not reflect changes or amendments which may have been made subsequent to the date on the title block. For the latest product information about National Flood Insurance Program flood maps check the FEMA Flood Map Store at www.msc.fema.gov DRAINAGE REPORT APPENDIX B: COGCC APPROVED FORM 15 Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 DRAINAGE REPORT APPENDIX B TABLE OF CONTENTS COGCC Approved Form 15 Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 FORM 15 Rev 6199 State of Colorado Oil and Gas Conservation Commission 1120 Lincoln Street, Suite 801, Denver, Colorado 80203 (303)894-2100 Fax .(303)894-2109 EARTHEN PIT REPORT/PERMIT This form is to be used for both reporting and permitting pits. Rule 903 describes when a Permit with prior approval, or a Report within 30 days, is required for pits. Submit required attachments and forms. - 1 FORM SUBMITTED FOR: ❑Pit Report ®Pit Permit OGCC Operator Number: Name of Operator Address: City: State: Zip. Contact Name and Telephone No: Fax FOR OGCC USE CX+1LY Complete the Attachment Checklist C)iser OGCC Detailed Site Plan Topo Maya w Pi! Locat,on Weier Analvs+s loom, 257 Source Wells (Form 267 N E.'esgrtPran a Cross Sec Design Calculations Sertsilive Area pelerm Mud Program Form 2A API Number (of associated well): OGCC Facility ID (of other associated facility): Pit Location (QtrOtr, Sec, Twp, Rng, Meridian): Latitude: Longitude: County: Pit Use. 0 Production 0 Drilling (Attach mud program) ❑Special Purpose (Describe Use): Pit Type: 0 Lined 0 Unlined Surface Discharge Permit 0 Yes 0 No Offsite disposal of pit contents: ❑ Injection ['Commercial Pit/Facility Name PitVFacitity No: Attach Form 26 to identify Source Wells and Form 25 to provide Produced Water Analysis results. Existing Site Conditions Is the location in a 'Sensitive Area?" ❑ Yes ❑ No Distance (in feet) to nearest surface water: ground water: Attach data used for determination, water wells: LAND USE (or attach copy of Form 2A If previously submitted for associated well) Select me which hest describes land use: Crop Land: 0 Irrigated 0 Dry Land []Improved Pasture ❑ Hay Meadow ❑CRP Non -Crop Land:❑ Rangeland 0 Timber [] Recreational 0 Other (describe): Subdivided: ❑ lndustnal ['Commercial ❑ Residential SOILS (or attach copy of Form 2A If previously submitted for associated well) Soil map units form USNRCS survey: Sheet No: - Soil ComplexfSeries No: Soils Series Name: Horizon thickness (in inches): A: B: C Soils Series Name' Honzon thickness (in inches): A. B: C. Attach detailed site plan and topo map with pit location, Pit Design and Construction Size of pit (feet): Length Width: Depth: Calculated pit volume (bbls): Daily inflow rate tbblslday): Daily disposal rates (attach cafcuiatians): Evaporation: bbis/day Percolation: bbislday Type of liner material Thickness: Attach description of proposed design and construction (include sketches and calculations). Method of treatment of produced water pnor to discharge into pit (separator, heater treater, other): Is pit fenced? 0Yes 0No Is pit netted? Elves No hereby certify that the statements made in this form are, to the best of my knowledge, true, correct, and complete. Drint Name Signed: 'itle Date: GCC Approved: Title: Date: ONDITIONS OF APPROVAL, IF ANY: FACILITY NUMBER: DRAINAGE REPORT APPENDIX C: HYDROLOGIC CALCULATIONS Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 DRAINAGE REPORT APPENDIX C TABLE OF CONTENTS Drainage Basin Plan - Watershed boundaries used for hydrologic calculations Composite "C" Factors Table - Composite C values based on percent imperviousness and HSG, to be used in hydrologic calculations Time of Concentration Table - Time of concentration calculations to be used in hydrologic calculations 10 -Year Runoff Table - Calculations for the 10 -year storm event runoff 100 -Year Runoff Table - Calculations for the 100 -year storm event runoff Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 / .,. / / N 1 O\OLSSON ASSOCIATES • • REVISIONSGrend Juno., CO 81508 Mg= Ocom / • a DzsEI fi„ ♦ SCALE IN FEET / 1 I I o4O 13030.43 iNE:flJ!y illii . j SHALLOW DEPRESSION — _ - Nr -110/01301111 o / 2 / DRAINAGE SUMMARY 596-32C WATER IMPOUNDMENT RETROFIT MARATHON OIL COMPANY GARFIELD COUNTY, COLORADO 12013 EXISTING/PROPOSED DRAINAGE CONDITIONS LEGEND NOTES ,. IMPOUNDMENT o ALTERAi EXISTING/PROPOSED DRAINAGE BASIN SUMMARY lo — _ — — ■ BASIN BOUNDARY CHANGES oa ONS AFFECTING THE HYDRAULIC CHARACTERISTICS OF THE APPROVAL OF THE courvTv. ea lMPouxoMExr AREA wIusE MADE wITHOUTTHE WATBASIN DESIGNATION DESIGN PT BASIN I.D. AREA (AC) DISCHARGE 10 -YR (CFS) DISCHARGE 100 -YR (CFS) z IMPOUNDMENT. MAINTENANCE AND AREA IS THE KW 10 YR RUNOFF COEFF. OPERATION OF Y OWNER.EIFFAILS IN THISRESPONSIBILI, THE COUNT( HAS THE RIGHT TO ENTER THE PROPERTY, MANTAIN NE NE 0.36 0.18 0.33 100 YR RUNOFF COEFF. THE WATER IMPOUNDMENT AREA, AND BE REIMBURSED FOR COSTS INCURRED. sw sw 3.02 1.32 2.40 BASIN AREA IN ACRES s AND WILL DRAWINGS SHALL BE PREPARED BY A RED PROFESSIONAL NOT HAVE AN OUTLET THE DUSTING TERRAI1, EXISTING MINOR CONTOURASBUILT ATEOFOCCUPANCY FOR ANY STRUCTUREwrOHIN THE DEVELOPMENT. EXISTING MAJOR CONTOUR 4 PERMISSION TO REPRODUCE THESE PLANS IS HEREBY GIVEN TO GARFIELD COUNTY OUNT PURPOsSND ES ASSOCIATED DRAINAGE FLOW DIRECTION FOR COUNTY S CNOE WITH PLAN REVIEW. APPROVAL. PERMITTING, INSPECTI0.000 NE DESIGN POINT „„ 003 013.1372 M' 030 SHEET 9 of 9 COMPOSITE 'C' FACTORS LOCATION: Garfield County, CO Final Drainage Study BY: AMG DATE: 11/28/2012 BASIN DESIGNATION UNDEVELOPED DEVELOPED COMPOSITE C FACTOR IMPERVIOUS UNDEV GRAVEL TOTAL 2YR 5 YR 10 -YR 100 YR 2YR 5 YR 10 -YR 100 YR 2YR 5 YR 10 -YR 100 YR Imperviousness = 2 10 NE 0.000 0.355 0.36 0.03 0.09 0.17 0.36 0.06 0.14 0.22 0.40 0.06 0.14 0.22 0.40 10.00 SW 0.000 3.019 3.02 0.03 0.09 0.17 0.36 0.06 0.14 0.22 0.40 0.06 0.14 0.22 0.40 10.00 COMPOSITE I, % TOTAL A, ac (SITE) 10.00 3.37 012-1372_Hyd rology.x lsx STANDARD FORM SF -2 TIME OF CONCENTRATION REMARKS LOCATION: Garfield County, CO Final Drainage Study BY: AMG 11/28/2012 FORMULAS: * Ti = 1.8*(1.1-C5)L^0.5/S^1/3 ** V=Cv*S^0.5, Bare: Cv=10, Grass: Cv=15, Swale: Cv=20 SUB -BASIN DATA INIT./OVERLAND TIME (Ti) TRAVEL TIME (Tt) TOTAL FINAL Tc DESIGNATION C5 AREA (AC) LENGTH (FT) SLOPE % Ti (Min.)* BARE/ GRASS/ SWALE LENGTH (FT) SLOPE (FT/FT) VEL. (FPS)** Tt(Min.) BARE/ GRASS/ SWALE LENGTH (FT) SLOPE (FT/FT) VEL. (FPS)** Tt(Min.) Ti+Tt(Min.) (minutes) NE 0.14 0.36 1 84.71 0.39 BARE 16 0.8471 9.20 0.03 BARE 430 0.0010 0.32 22.66 23.09 23.09 SW 0.14 3.02 1 0.00 17.28 BARE 244 0.0010 0.32 12.86 30.14 30.14 Generally flat 012-1372_Hydrology.xlsx STORM DRAINAGE SYSTEM DESIGN (RATIONAL METHOD PROCEDURE, STANDARD FORM SF -3) DESIGN STORM: 10 -YEAR RUNOFF Marathon Oil Company - 596-32C Calc. by: AMG Chk'd by: WEP Date: 11/28/2012 DESIGN POINT DIRECT RUNOFF REMARKS z ( Q CO AREA (AC) COEFF. (C) 0Q 1— U %-7-- 0 NE NE 0.36 0.22 23.09 0.08 2.31 0.18 SW SW 3.02 0.22 30.14 0.66 1.98 1.32 012-1372_Hydrology.xlsx STORM DRAINAGE SYSTEM DESIGN (RATIONAL METHOD PROCEDURE, STANDARD FORM SF -3) DESIGN STORM: 100 -YEAR RUNOFF Marathon Oil Company - 596-32C Calc. by: AMG Chk'd by: WEP Date: 11/28/2012 DESIGN POINT DIRECT RUNOFF REMARKS z ( Q CO AREA (AC) COEFF. (C) 0Q 1— U %-7-- 0 NE NE 0.36 0.40 23.09 0.14 2.31 0.33 SW SW 3.02 0.40 30.14 1.21 1.98 2.40 012-1372_Hydrology.xlsx DRAINAGE REPORT APPENDIX D: WATER IMPOUNDMENT POND CALCULATIONS Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 DRAINAGE REPORT APPENDIX D TABLE OF CONTENTS Proposed Water Impoundment Pond Stage -Storage Worksheet - Stage -storage calculations of the proposed water impoundment pond used to demonstrate the proposed volume. Liner Worksheet - Liner system design calculations showing the trench dimensions. Marathon Oil Company Water Impoundment Garfield County, CO 012-1372 STAGE -STORAGE SIZING FOR POLYGONAL, ELLIPTICAL, OR IRREGULAR PONDS Project: 596-32C Water Impoundment - Marathon Oil Company Basin ID: Proposed Water Impoundment Pond Design Information (Input): Width of Pond Bottom, W = Length of Pond Bottom, L = Dam Side -slope (H:V), Za = Stage -Storage Relationship: Side slope Z ft ft ft/ft Side slope Z Check Pond Shape Right Triangle Isosceles Triangle Rectangle Circle / Ellipse Irregular Storage Requirement from Sheet 'Modified FAA': Storage Requirement from Sheet 'Hydrograph': Storage Requirement from Sheet 'Fu I -Spectrum': MINOR OR... OR... OR... OR... (Use Overide values in cells G32:G52) MAJOR acre -ft. acre -ft. acre -ft. Labels for WQCV, Minor, & Major Storage Stages (input) Stage ft (input) Side Slope (H:V) ft/ft Below El. (input) Pond Width at Stage ft (output) Pond Length at Stage ft (output) Surface Area at Stage ft2 (output) Surface Area at Stage ft2 User Overide Volume Below Stage ft3 (output) Surface Area at Stage acres (output) Volume Below Stage acre -ft (output) Target Volumes for WQCV, Minor, & Major Storage Volumes (for goal seek) 8315.24 0 0.000 0.000 8316.00 0.00 0.00 16 6 0.000 0.000 8318.00 0.00 0.00 1,736 1,758 0.040 0.040 8320.00 0.00 0.00 6,456 9,950 0.148 0.228 8322.00 0.00 0.00 11,968 28,375 0.275 0.651 8324.00 0.00 0.00 14,872 55,216 0.341 1.268 8326.00 0.00 0.00 17,852 87,939 0.410 2.019 8328.00 0.00 0.00 21,040 126,831 0.483 2.912 8330.00 0.00 0.00 24,269 172,139 0.557 3.952 8331.58 0.00 0.00 26,855 212,527 0.617 4.879 2' Freeboard 8332.00 0.00 0.00 27,542 223,950 0.632 5.141 8333.58 0.00 0.00 30,134 269,515 0.692 6.187 #N/A #N/A #N/A #N/A #N/A #NIA #N/A #N/A #N/A #N/A #NIA #N/A #N/A #NIA #N/A #N/A #N/A #N/A #NIA #N/A #N/A #NIA #N/A #N/A #N/A #N/A #N/A #N/A #N/A #NIA #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A UD -Detention v2.3 - Proposed Water Impoundment Pond.xls, Pond 9/12/2013, 1:15 PM DESIGN CALCULATION No.: 001 Client: Marathon 596-32C Project: Ok O L S S O N Area: Subject: Pond Liner Proj. No.: Page: 1 Of: 3 ASSOCIATES Sub No.: Prep: AMG Date: 11/28/2012 Ref. Dwg No.: Check: Date: Objective: Determine optimal design for anchor trench and calculate dimensions for run out, anchor trench depth, and depth of cover soil. References: 1. The text books referenced for these calculations are Geotechnical Aspects of Landfill Design and Construction by Qian, Koerner and Gray and "Designing with Geosynthetics" Fifth Edition by Robert M. Koerner. 2. Since site-specific data was not available, the value for the friction angle between geomembrane and soil/geomembrane has been estimated from literature guidance from Waste Containment Systems, Waste Stabilization, and Landfills, Sharma/Lewis 1994 and a study done by Martin et. al. [Martin, J.P., Koerner R.M., and Whitey, J.E., "Experimental Friction Evaluation of Slippage between Geomembranes, Geotextiles and Soils, "Proceedings of the International Conference on Geomembranes, IFAI, 1984, pp. 191-196]. Conservative values from the ranges provided in the afore mentioned literature was used for these calculations. 3. The unit weight of Shale has been considered 120 psf based on the Geotechnical Investigation conducted by Olsson Associates, reported on December 15, 2010 in the Report of Geotechnical Exploration, Taylor Compressor Station, Mesa County, Colorado. 4. The Ultimate Tensile Strength for 60 mil HDPE has been taken from values provided by the manufacturer, which are attached herewith as Table 1. Anchor Trench Diagram: Corer soil LRo Geomcmbrane (FRo)e Imaginary and frictionless pulleys • (FATIL • LAY^Ides FAT)A dAT iFna)u T. {A6)11 Definitions: /3 = slope anlge dcs = depth of cover soil dnr = depth of anchor trench LAT = cross sectional length of anchor trench df friction angle between geomembrane and overlying material do friction angle between geomembrane and underlying material L50 = length of runout that is covered with soil Ko = coefficient of at -rest earth pressure internal friction angle of soil ys soil unit weight Refer to the attached article for definitions of other abbreviations used in these calculations. Formula Input Data Conversion: Primary Geomembrane: 60 mil HDPE Secondary Geomembrane: 60 mil HDPE English Input English Input g = 26.565 degrees (3 = 26.565 degrees dcs 1 ft dcs = 1 ft dAT 3ft dAT 3 ft LAT 3ft LAT 3 ft of = 21 degrees of = 17 degrees do = 17 degrees do = 17 degrees L50 = 3ft L50 3 ft Ko 0.56 Ko 0.56 a = 26 degrees v% = 26 degrees Xs ▪ 120 Ib/ft3 ys = 120 Ib/ft3 All other values are calculated per Pages 2 and 3 Primary Geomembrane: 60 mil HDPE Eql Equations Resolution of Values Page 2 Tcos 3 =(FRo)s+(FAB)u+(FAB)s+[(FAT)L+(FAT)R] Eq2 (FAB)s = Ys(dcs+dAT)LATtan6o Eq3 (FAs)u = ys(dcs+dAT)LATtandf Eq4 (FAT)L = Koys(dcs+0.5dAT)dATtando Eq5 (FAT)R = Koys(dCS+0.5dAT)dATtanof Eq6 Ko = 1 -since (FRo)s = ysdcsLRotando+Tsinj3tan6o where: ysdcsLRotando 11/28/2012 • 440.25 Ib/ft3 552.76 Ib/ft3 • 154.54 Ib/ft3 • 345.48 Ib/ft3 • 0.56 • 110.06 Solving for T: T = (ySdcsLRotando) + [7s(dcs+dAT)LATtando] + [ys(dcs+dAT)LATtandf] + [K07s(dcs+0.5dAT)tando] + [KoyS(dcs+0.5dAT)tandf] cosf3-sinf3tandc where: cosj3-sinf3tandc = 0.76 then: T = 2115.73 Ibf Tult for 60 mil 1512 Ibf/ft per manufacturer's data Strength Ratio for 60 mil = 1.40 Goal: >1 and <1.5 Secondary Geomembrane: 60 mil HDPE Equations Resolution of Values Page 3 Eq1 Tcos/3 = (FRO)B+(FAB)U+(FAB)B+I(FAT)L+(FAT)R) 11/28/2012 Eq2 (FAB)B = YS(dcs+dAT)LArtandc Eq3 (FAB)u = YS(dcs+dAT)LATtan of Eq4 (FAT)L = KoYs(dcs+0.5dAT)dArtandc Eq5 (FAR = KoYs(dcs+0.5dAT)dATtan6f Eq6 Ko = 1 -since (FRO)B = 7SdcsI-Rotando+Tsin/3tando where: 7sdcsLRotando 440.25 Ib/ft3 440.25 Ib/ft3 154.54 Ib/ft3 275.16 Ib/ft3 0.56 110.06 Solving for T: T = (YsdcsLRotando) + I7S(dcs+dAT)LArtan6o] + [YS(dcs+dAT)LATtandf] + [KoYs(dcs+0.5dAr)tando] + [KoYs(dcs+0.5dAr)tan6f] cos/?-sin/3tandc where: cos/3-sin/?tandc = 0.76 then: T 1874.44 Ibf Tult for 60 mil Strength Ratio for 60 mil 1512 Ibf/ft per manufacturer's data (27 mil) 1.24 Goal: >1 and <1.5 USER: dfox w 0Q 00 WATER IMPOUNDMENT 596-32C MARATHON OIL COMPANY LIR PLANS LOCATED IN SECTION 32, TOWNSHIP 5 SOUTH, RANGE 96 WEST OF THE 6TH PRINCIPAL MERIDIAN GARFIELD COUNTY, STATE OF COLORADO GENERAL NOTES 1. ALL WORK WITHIN PUBLIC RIGHTS-OF-WAY AND/OR EASEMENT AND ALL ON-SITE UTILITY WORK SHALL CONFORM TO THE TECHNICAL SPECIFICATIONS AND DESIGN CRITERIA FOR PUBLIC IMPROVEMENT PROJECTS OF GARFIELD COUNTY AND THE GRANTOR OF THE EASEMENT. 2. ALL MATERIALS AND WORKMANSHIP SHALL BE IN CONFORMANCE WITH THE LATEST STANDARDS AND SPECIFICATIONS OF THE APPROPRIATE GOVERNING AGENCY. THE CONTRACTOR SHALL HAVE IN HIS POSSESSION AT ALL TIMES (1) SIGNED COPY OF THE PLANS, STANDARDS, AND SPECIFICATIONS AS APPROVED BY THE APPROPRIATE GOVERNING AGENCY. THE CONTRACTOR SHALL OBTAIN WRITTEN APPROVAL FOR ANY VARIANCE TO THE ABOVE DOCUMENTS. 3. THE CONTRACTOR SHALL OBTAIN, AT HIS OWN EXPENSE, ALL APPLICABLE CODES, LICENSES, STANDARDS, PERMITS, BONDS, ETC. WHICH ARE NECESSARY TO PERFORM THE PROPOSED WORK. 4. THE EXISTING UTILITY LOCATIONS SHOWN ON THE PLANS ARE APPROXIMATE AND MAY NOT INCLUDE ALL LINES PRESENT. THE CONTRACTOR WILL BE RESPONSIBLE FOR CALLING THE UTILITY NOTIFICATION CENTER OF COLORADO AT 811 AND COORDINATING FIELD LOCATIONS OF EXISTING UNDERGROUND UTILITIES PRIOR TO BEGINNING GRADING AND UTILITY WORK. 5. LOCATIONS AND ELEVATIONS OF EXISTING IMPROVEMENTS TO BE MET (OR AVOIDED) BY WORK TO BE DONE SHALL BE CONFIRMED BY THE CONTRACTOR THROUGH FIELD EXPLORATIONS PRIOR TO CONSTRUCTION. CONTRACTOR SHALL REPORT TO THE ENGINEER ANY DISCREPANCIES BETWEEN HIS MEASUREMENTS AND THESE PLANS. 6. ANY CONSTRUCTION DEBRIS OR MUD DROPPED INTO MANHOLES, INLETS, PIPES OR TRACKED ONTO EXISTING ROADWAYS SHALL BE REMOVED IMMEDIATELY BY THE CONTRACTOR. THE CONTRACTOR SHALL REPAIR ANY EXCAVATIONS OR PAVEMENT FAILURES CAUSED BY HIS CONSTRUCTION. THE CONTRACTOR SHALL PROPERLY BARRICADE THE CONSTRUCTION SITE UNTIL CONSTRUCTION IS COMPLETE. 7. PRIOR TO BEGINNING THE WORK, THE CONTRACTOR SHALL OBTAIN ANY WRITTEN AGREEMENTS FOR INGRESS AND EGRESS TO THE WORK FORM ADJACENT PRIVATE PROPERTY OWNERS. ACCESS TO ANY ADJACENT PRIVATE PROPERTY SHALL BE MAINTAINED THROUGHOUT THE CONSTRUCTION PERIOD. 8. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL PERMITS NOT OBTAINED BY THE OWNER OR OWNER'S REPRESENTATIVES AND PAY ALL FEES AS REQUIRED BY THE CONSTRUCTION COVERED IN THESE PLANS. 9. EXCEPT FOR MATERIALS DESIGNED TO BE RELOCATED ON THIS PLAN, ALL OTHER CONSTRUCTION MATERIALS SHALL BE NEW. 10. NO WORK SHALL BE BACKFILLED (INCLUDING BEDDING MATERIAL ABOVE THE SPRING LINE OF THE PIPE) UNTIL THE CONSTRUCTION HAS BEEN INSPECTED AND APPROVED FOR BACKFILLING BY THE APPROPRIATE GOVERNING AGENCY. 11. ALL WORK AND MATERIALS WILL BE SUBJECT TO INSPECTION AND APPROVAL BY THE OWNER OR THE OWNERS REPRESENTATIVE. 12. SHOP DRAWINGS AND MATERIAL SPECIFICATIONS SHALL BE SUBMITTED TO OWNER/ENGINEER FOR REVIEW AND APPROVAL PRIOR TO PLACEMENT OF MATERIAL. 13. ALL WORK SHALL CONFORM TO ALL LOCAL, STATE, AND FEDERAL APPLICABLE LAWS AND REGULATIONS. 14. ALL ESTIMATES OF QUANTITIES ARE FOR INFORMATIONAL PURPOSES ONLY. CONTRACTOR AND SUBCONTRACTORS SHALL BE RESPONSIBLE FOR DETERMINING ALL QUANTITIES. CONTRACTOR SHALL PROVIDE ALL WORK AND MATERIALS AS SHOWN ON THESE PLANS. 15. THE CONTRACTOR SHALL BE RESPONSIBLE FOR JOB SITE SAFETY OF HIS OWN PERSONNEL, ALL VISITORS TO THE SITE, AND THE GENERAL PUBLIC INCLUDING, BUT NOT LIMITED TO, TRENCH EXCAVATION AND SHORINGS, TRAFFIC CONTROL, AND SECURITY NOT LIMITED TO NORMAL WORKING HOURS. 16. THE CONTRACTOR SHALL BE RESPONSIBLE FOR REPAIRING ALL EXISTING FEATURES TO REMAIN THAT ARE DAMAGED DURING CONSTRUCTION ACTIVITIES TO EQUAL OR BETTER CONDITION, AT HIS OWN EXPENSE. 17. CONTRACTOR SHALL COORDINATE THE INSTALLATION OF ALL SITE IMPROVEMENTS (INCLUDING BUT NOT LIMITED TO: UTILITIES, STRUCTURES, PAVING, LANDSCAPING, ETC.) SUCH THAT NO DAMAGE IS DONE TO SITE IMPROVEMENTS (I.E.: SAWCUTTING NEW PAVEMENT). SITE IMPROVEMENTS DAMAGED DURING CONSTRUCTION SHALL BE REPAIRED OR REPLACED TO THE SATISFACTION OF THE OWNER AT NO ADDITIONAL COST TO THE OWNER. 18. IF, DURING THE CONSTRUCTION PROCESS, CONDITIONS ARE ENCOUNTERED WHICH COULD INDICATE THAT A PRIOR UNIDENTIFIED SITUATION IS PRESENT, THE CONTRACTOR SHALL CONTACT THE ENGINEER IMMEDIATELY. 19. THE CONTRACTOR SHALL REMOVE ALL DEBRIS RESULTING FROM WORK UNDER THIS CONTRACT TO AN APPROVED DUMP SITE. 20. USE ONLY DIMENSIONS PROVIDED ON THESE PLANS. DO NOT SCALE DRAWINGS. INFORM ENGINEER OF ANY DISCREPANCIES AND/OR MISSING INFORMATION. 21. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ACCESS TO ADJACENT PARCELS DURING ALL HOURS OF OPERATION FOR THE BUSINESSES LOCATED ON THOSE PARCELS. 22. CONTRACTOR TO OBTAIN TEMPORARY POWER, TELEPHONE AND WATER FOR THE SITE AS NEEDED. 23. CONTRACTOR MUST COORDINATE CONSTRUCTION WITH OWNER/ADJACENT PROPERTY OWNER'S CONSTRUCTION MANAGER. 24. THE CONTRACTOR SHALL OBTAIN A COPY OF THE STANDARD SPECIFICATIONS AND DETAILS OF ALL AGENCIES EXERCISING JURISDICTION OVER THIS PROJECT. A COPY OF THESE SPECIFICATIONS AND DETAILS SHALL BE MAINTAINED ON THE JOBSITE AT ALL TIMES. A COPY OF ALL APPLICABLE STANDARD DETAILS AND SPECIFICATIONS ARE INCORPORATED HEREIN BY REFERENCE. 25. THE CONTRACTOR SHALL BE RESPONSIBLE FOR KEEPING ADJACENT COUNTY ROADS FREE AND CLEAN OF ALL DEBRIS AND DIRT FROM THE JOB SITE. VICINITY MAP SCALE: 1"=2000' GRADING 1. THE CONTRACTOR IS RESPONSIBLE FOR PROTECTION OF ALL PROPERTY CORNERS. ANY PROPERTY CORNERS DISTURBED OR DAMAGED BY GRADING ACTIVITIES SHALL BE RESET BY A PROFESSIONAL LAND SURVEYOR LICENSED IN THE STATE OF COLORADO, AT THE CONTRACTORS EXPENSE. 2. THE CONTOUR LINES SHOWN ARE TO FINISH GRADE FOR SURFACE OF ROADWAY, SURFACE OF POND, ETC. ALL SPOT ELEVATIONS SHOWN ARE TO FLOWLINE UNLESS OTHERWISE INDICATED. 3. THE CONTRACTOR SHALL CLEAN OUT ALL EXISTING AND PROPOSED INLETS, PIPES AND MANHOLES OF DEBRIS AND SEDIMENT AT COMPLETION OF SITEWORK. THIS WORK SHALL BE DONE TO THE SATISFACTION OF THE OWNER. 4. CONTRACTOR SHALL COORDINATE TESTING ACTIVITIES WITH THE GEOTECHNICAL ENGINEER. 5. ALL GRADING, COMPACTION, AND PAVEMENT CONSTRUCTION WILL BE IN ACCORDANCE WITH RECOMMENDATIONS FROM THE GEOTECHNICAL INVESTIGATION. GEOTECHNICAL STUDY NOTE CONTRACTOR TO OBTAIN AND READ THE GEOTECHNICAL ENGINEERING STUDY (PROVIDED BY OWNER). IN CASE OF ANY CONFLICT WITH THESE PLANS AND SITEWORK SPECIFICATIONS REGARDING PAVING AND EARTHWORK, THE GEOTECHNICAL REPORT WILL GOVERN. ALL PAVING AND EARTHWORK SHALL CONFORM TO THE RECOMMENDATIONS OF THE REPORT. DEWATERING PERMITS 1. CONTRACTOR TO OBTAIN DEWATERING PERMIT FROM CDPHE PRIOR TO COMMENCING WORK. DISCHARGES SHALL BE MONITORED ACCORDING TO THE CONDITIONS OF THE CDPHE PERMIT. SHEET LIST TABLE SHEET NUMBER SHEET TITLE 1 COVER SHEET 2 LOCATION MAP 3 SITE PLAN 4 GRADING PLAN & POND SECTIONS 5 ROADWAY PLAN AND PROFILE 6 SITE DETAILS 7 FENCE DETAILS 8 ANCHOR TRENCH DETAILS 9 DRAINAGE SUMMARY CONTACT LIST: OWNER: MARATHON OIL COMPANY 743 HORIZON COURT, SUITE 220 GRAND JUNCTION, CO 81506 PHONE: (970) 244-5735 CONTACT: ERIC WARD SURVEYOR: WILLIAM H. SMITH & ASSOCIATES P.C. 550 EAST SECOND NORTH GREEN RIVER, WY PHONE: (307) 875-3638 FAX: (307) 875-3639 ENGINEER: OLSSON ASSOCIATES 760 HORIZON DRIVE, SUITE 102 GRAND JUNCTION, CO 81506 PHONE: (970) 263-7800 CONTACT: WYATT POPP, PE EROSION & SEDIMENT CONTROL THIS PROJECT REQUIRES A PERMIT FOR STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITY FROM THE COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT. CONTRACTOR TO COMMENCE WORK ON THIS SITE ONLY AFTER AN ACTIVE PERMIT NUMBER HAS BEEN OBTAINED FROM THE COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT. 2. THE CONTRACTOR SHALL INSTALL EROSION/SEDIMENTATION CONTROLS PRIOR TO ANY SITE PREPARATION WORK (E.G., CLEARING, GRUBBING, OR EXCAVATION). 3. THE PLACEMENT OF EROSION/SEDIMENTATION CONTROLS SHALL BE IN ACCORDANCE WITH THE STORMWATER POLLUTION PREVENTION PLAN, TO BE PREPARED BY THE CONTRACTOR. 4. CONTRACTOR TO ADJUST EROSION CONTROL MEASURES AS NEEDED FOR VARIOUS PHASES OF WORK. 5. CONTRACTOR TO ENSURE THAT NO DIRT AND SEDIMENT IS TRACKED ONTO ADJACENT ROADWAYS AND WATERWAYS. 6. A GROUNDWATER DISCHARGE PERMIT IS REQUIRED FROM THE STATE ENGINEER'S OFFICE, PRIOR TO PUMPING IT OUT. 7. GROUNDWATER SHALL BE SAMPLED AND SENT TO AN APPROVED LABORATORY FOR TESTING PRIOR TO BEING DISCHARGED. TESTING SHALL BE IN ACCORDANCE WITH PERMIT FOR STORMWATER DISCHARGE. 8. APPROVED EROSION AND SEDIMENT CONTROL "BEST MANAGEMENT PRACTICES" (BMPS) SHALL BE MAINTAINED AND KEPT IN GOOD REPAIR FOR THE DURATION OF THIS PROJECT. AT A MINIMUM, THE CONTRACTOR SHALL INSPECT ALL BMPS EVERY 14 DAYS, AND AFTER ALL SIGNIFICANT PRECIPITATION EVENTS I.E. RAINFALL, SNOWMELT. ALL NECESSARY MAINTENANCE AND REPAIR ACTIVITIES SHALL BE COMPLETED WITHIN TWENTY-FOUR (24) HOURS AFTER DIRECTION BY THE INSPECTOR. ACCUMULATED SEDIMENT AND CONSTRUCTION DEBRIS SHALL BE REMOVED WEEKLY FROM ALL BMPS, OR AT ANY TIME THAT SEDIMENT OR CONSTRUCTION DEBRIS ADVERSELY IMPACTS THE FUNCTIONING OF THE BMPS. 9. TOPSOIL SHALL BE STOCKPILED WITHIN LIMITS OF CONSTRUCTION FOR USE ON AREAS TO BE RE -VEGETATED. ANY AND ALL STOCKPILES SHALL BE PLACED IN AN APPROVED LOCATION AND PROTECTED FROM EROSIVE ELEMENTS USING MEASURES SPECIFIED IN THE EROSION CONTROL PLAN. 10. SOILS THAT WILL BE STOCKPILED FOR MORE THAN THIRTY (30) DAYS SHALL BE MULCHED AND SEEDED WITH A TEMPORARY OR PERMANENT GRASS COVER WITHIN FOURTEEN (14) DAYS OF STOCKPILE CONSTRUCTION. 11. ANY SETTLEMENT OR SOIL ACCUMULATIONS BEYOND THE LIMITS OF CONSTRUCTION DUE TO GRADING OR EROSION SHALL BE REPAIRED IMMEDIATELY BY THE CONTRACTOR. THE CONTRACTOR SHALL BE HELD RESPONSIBLE FOR REMEDIATION OF ANY ADVERSE IMPACTS TO ADJACENT WATERWAYS, WETLANDS, PROPERTIES, ETC. RESULTING FROM WORK DONE AS PART OF THIS PROJECT. 12. A WATER SOURCE MUST BE AVAILABLE ON SITE DURING EARTHWORK OPERATIONS AND UTILIZED AS REQUIRED TO MINIMIZE DUST FROM EARTHWORK EQUIPMENT AND WIND. 13. THE CONTRACTOR MUST KEEP ALL POLLUTANTS, INCLUDING SEDIMENT, CONSTRUCTION DEBRIS, AND TRENCH BACKFILL MATERIALS FROM ENTERING THE STORM SEWER SYSTEM. 14. ALL SPILLS INCLUDING, BUT NOT LIMITED TO, PETROLEUM PRODUCTS, SOLVENTS, AND CEMENT SHALL BE CLEANED UP IMMEDIATELY. MESA COUNTY ENGINEERING DIVISION SHALL BE NOTIFIED IMMEDIATELY. 15. THE CONTRACTOR SHALL ENSURE THAT ALL LOADS OF CUT AND FILL MATERIAL IMPORTED TO OR EXPORTED FROM THE SITE SHALL BE PROPERLY COVERED TO PREVENT LOSS OF THE MATERIAL DURING TRANSPORT ON PUBLIC RIGHT-OF-WAY. 16. THE CONTRACTOR SHALL ENSURE THAT ALL MATERIAL EXPORTED FROM THE SITE, IS DISPOSED OF AT A SITE PERMITTED TO ACCEPT SUCH MATERIAL. 17. THE USE OF REBAR, STEEL STAKES OR STEEL FENCE POSTS FOR STAKING DOWN STRAW OR HAY BALES, OR TO SUPPORT SILT FENCING USED AS AN EROSION CONTROL MEASURE, IS PROHIBITED. 18. THE CLEANING OF CONCRETE DELIVERY TRUCK CHUTES IS RESTRICTED TO APPROVED LOCATIONS ON THE JOB SITE. THE DISCHARGE OF WATER CONTAINING WASTE CEMENT TO THE STORM SEWER SYSTEM IS PROHIBITED. ALL CONCRETE WASTE SHALL BE PROPERLY CLEANED UP AND DISPOSED OF AT AN APPROPRIATE LOCATION. 19. PRIOR TO ACTUAL CONSTRUCTION, THE CONTRACTOR SHALL VERIFY THE LOCATION OF EXISTING UTILITIES. FOR INFORMATION, CONTACT THE UTILITY NOTIFICATION CENTER OF COLORADO AT 811. 20. CONTRACTOR TO FILE "NOTICE OF TERMINATION" WITH CDPHE ONCE PROJECT IS COMPLETE AND ALL DISTURBED AREAS HAVE BEEN STABILIZED INCLUDING TEMPORARY BMPS REMOVED. W Zw 0 0 J a www.oaconsulting.com O ,p O u] 03 ce �(0 N (...4 O O 01 01 m m wQ �LL N O 0 o O 0) u) p 03 o u O > 00 o o N � o1. �0 OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. ITIS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. CaII before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGG NG, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION w Q 0 uo ct w Z REVISIONS COVER SHEET 596-32C WATER IMPOUNDMENT RETROFIT MARATHON OIL COMPANY GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: QA/QC by: project no.: drawing no.: date: MEO WEP WEP WEP 012-1372 01_121372_TTL.dwg 01.21.2014 SHEET 1 of 9 www.oaconsulting.com OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION LOCATION MAP H L2 0 cc H W >- z Z Q Z d w2 20 Z 00 a- Z 20 w~ ¢ 1- a< 0 N M O d) LO REVISIONS r O N GARFIELD COUNTY, COLORADO drawn by: MEO checked by: WEP approved by: WEP QA/QC by: WEP project no.: 012-1372 drawing no.: 02_121372_LMAP.dwg date: 01.21.2014 SHEET 2 of 9 m N N t_7 xN 0 -o W Ln to CO minn N N M LJ N Q I m 14-1 I d I'7 „Jr - 2 O 4)w %X VI cr N o M t N N ai • ON 0 t3 0Li Q / / / / / s\°/ r / I I I I 1 / I / 1 I 1 1 1 1 I I I I 1 I I l O7 N oo 1 I 1 1 1 1 1 o � 1 1 I I 1 1 1 1 1 0. 1 oo c, 0 0 1 I I 1 / 1 00 00 1 1 I 1 0 9J 1.3: 1.4: 1 1 O N) CO 1 1 1 / 0 /7 /7 1. ENTERPRISE LAUNCHER AND METER SHACK POSSIBLE SNOW STORAGE AREA ry SITE BOUNDARY / / \ )Il'—, I lrf • • 834 ENTERPRISE LATERAL- - ` y 11 EXTEND BIRD NETTING TO SLOPES / EXISTING GATE PROPOSED NORTHWEST MANIFOLD PAD, SEE DETAILS ON SHEET 7 WATER LINE PROPOSED (2) 3” HDPE AND (1) 8" HDPE LOAD OUT LINES EXISTING CHAIN LINK FENCE ELECTRIC LINE 2" FLOW LINES 1" GLYCOL LINES HEAT SEPARATOR ELECTRIC BOXES 1" GLYCOL UNES ELECTRIC LINE 3" WATER DUMP LINE 2" CONDENSATE DUMP LINE ELECTRIC LINE APPROXIMATE LOCATION OF PROPOSED ANCHOR TRENCH 0 O O 1 PROPOSED 4" HDPE IN LINE PROPOSED (1) 3" HDPE AND (1) 8" HDPE LOAD OUT LINES PROPOSED SOUTHWEST MANIFOLD PAD, SEE DETAILS ON SHEET 7 III I. EXISTING GATE VALVE CAN I� / EXTEND BIRD NETTING / TO SLOPES / X` -x14-6" X RTU BLD. SOLAR PANEL EXISTING CHAIN LINK FENCE PROPOSED LEAK DETECTION SYSTEM, (1) 8" HDPE AND (2) 4* HDPE PIPES SEE SHEET 9 FOR DETAILS CONTAINMENT RING VALVE CAN —3 / i / 6340 7 N 1 1"=30' 0' 15' 30' 60' SCALE IN FEET NOTES: 1. SITE FEATURES AND TOPOGRAPHY WAS PROVIDED BY WILLIAM H. SMITH & ASSOCIATES P.C. 550 EAST SECOND NORTH, GREEN RIVER, WY, (307) 875-3638. 2. ALL CONTOUR INFORMATION USED FOR DESIGN SHALL BE FIELD VERIFIED. 3. POND VOLUMES SHOWN ON PLANS SHALL BE FIELD VERIFIED. 4. REFER TO SHEETS 7, 8, AND 9 FOR SITE DETAILS. 5. EXISTING FENCE AND GATE LOCATIONS WERE FIELD VERIFIED ON 6/4/2013. W Zw Oa to 0 a www.oaconsulting.com OLSSON ASSOCIAI ES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. ITIS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. Call before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION Lu Q 0 REVISIONS SITE PLAN 596-32C WATER IMPOUNDMENT RETROFIT MARATHON OIL COMPANY CO O N GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: QA/QC by: project no.: drawing no.. date: MEO WEP WEP WEP 012-1372 03_121372SIT.dwg 01.21.2014 SHEET 3 of 9 L LI N 01 z 0 0 U N o co 1 w 01 En x1 • N -N- W N of 0 a 1 N rw N Q CO �Ial iN CC NO CN }, T O CC; �w CC CC IE o N M r7 N O t N U O N O_ O L.� Ls) 0Q 0 f l \ r - f r _-_-___-_- / // // \ �AO \ �\ \� - / - \ \\ N N. II� TOP OF BERM N: 1643091.30 E: 2240732.06 ,ELEV. 8332.07 1643071.53 E: 2240745.80 ELEV. 8324.84 MATCH EXISTING GRADE AT A 2% SLOPE BETWEEN MANIFOLD PAD AND POND TO FACILITATE DRAINAGE TO THE POND N J 1"=20' 0' 10' 20' 40' SCALE IN FEET • 0 0 0 0 0 0 111 1�1 11 M1 1 iL GRADE AT A 2% SLOPE BETWEEN MANIFOLD PAD AND POND TO FACILITATE DRAINAGE TO THE POND N: 1643053.33 E: 2240723.16 ELEV. 8332.07 MATCH EXISTING TOE OF SLOPE N: 1643067.63 E: 2240755.62 ELEV. 8321.10 N: 1643042.32 E: 2240743.47 ELEV. 8323.93 MATCH EXISTING N: 1642993.79 E: 2240741.26 ELEV. 8323.33 MATCH EXISTING N: 1642983.37 " i E: 2240742.57 I I ELEV. 8322.38 I I MATCH EXISTING TOE OF SLOPE I I N: 1642948.361 I E: 2240748.481 1 1 ELEV. 8318.76L N: 1642947.56 ' E: 2240737.12 I I ELEV. 8323.42 1 1 MATCH EXISTING 0+00 x-1 1 i / / / / / / 5 0� 7 7 + �S , 7 - N: 1643073.84 - ' - E: 2240778.90 ELEV. 8323.46 MATCH EXISTING / / / SECTION EAST- WEST -2.00% I N: 1642939.18 E: 2240741.39 ELEV. 8321.37 MATCH EXISTING I 1 I I I I I I N: 1642866.58 I I E: 2240740.21 I I ELEV. 8319.81 I I MATCH EXISTING" N: 1642853.87 I 1 E: 2240728.11 1 I ELEV. 8324.72 I 1 MATCH EXISTING. TOE OF SLOPE I I N: 1642831.65 I I E: 2240746.41 I 1 ELEV. 8316.57 N: 1642815.30 E: 2240728.41 ELEV. 8325.56 MATCH EXISTING AREA OF EXCAVATION i i i i 7 i TOP OF BERM 1 1 " N: 1643089.73 \ 111\ E: 2240819.87 \\ 11,1111\\\\\\;`\ELEV. 8332.00 1 \ VA1A�7 TOE OF SLOPE ` \\ \ IN: 1643065.99\\\ 1E: 2240795.14 \\ \\ \ 1 1 1 ELEV. 8321.92 \\ \ \ 1 \ I i 111\\ I � N: 1643056.18 III I I 1 1 I! E: 2240798.03 ; 1 1 11 I 1 ELEV. 8322.181 1 MATCH EXISTING I I 1 / 1 J 1 1 iiiI 1 N:' 1643031.13 1 1 II) I I II IF\ E: 2240796.60 1 11 f I 1 \ ELEV. 8322.64 1 f 1111, 1 MATCH EXISTING; f l 11 I 1 \ / �'111II�111111f v !I f 1 11 I f 1 II \ b`) ' 11 f 1 1 III \ I I 0 I I I I If 1131/ 11 I !f \1 \1 N: 1643014.76 I 1 \ 1E: 2240795.90 11 1 1 1 1 1 / 1 'ELEV. 8322.78 ' 1 1 1 1 1 1 1 1 / 1 1 MATCH EXISTING' 1 '/( III / `I / N: 1642988.42 1 1 1 III 1 1 1 I E: 2240792.54 I 1 IIII / I ELEV. 8321.89 III 1 I I I / 1 MATCH I EXISTING I I I 1 1 1 / 111i11110�1)1111 i I N: 11642965.53 In I � I 11 I I I /' // E: 2240783.89 CO; 1 1 1 1 1 I/ / / ELEV. 8319.68 11 1 11 1 1 1 1 / / / MATCH EXISTING III I I / / / ' 11,11111! / / I i� 1 1 1 1 1 ill 1 1 1 1 1 // // / TOE OF SLOPE 1 I 1 I 1 III / / / IN: 1642945.45 1 1 1 1 1 1 / / // // /- E: 2240783.40 1' 1 1 1 1 1 1/ / / ELEV. 8319.45 1 1 1 1 I I/ // // // 111 I 11�� I I IIII 11111 II // // // // I 11�,I11111I11 / / . / / / / 1+8 / / / / N: 1642946.28 11) 1 I 1 / / / ` // // / / E: 2240764.86 1 1 1 / / / / / / 1 ELEV. 8318.88 ' ' / / / / / / / / / MATCH EXISTING /' / / / // // // 1'11/11! f;/ / / / I I I/1/'1/ 1 / / // / /// ( /1 I / I 1 1111! 1/ 111 / / , , / I 1 1 III( ////l// // / / / / / I 1 1 1 1 T H // j /l 1/ V / / /// //////////:// // I 111 1/1 / / / / / 1 // / I I 111 / / / 1 111 /1 / / / / / I 1 ;'i 1111/ / // / / / i / N: 1642850.15 1/ / I E: 2240764.48 , / / 1 ELEV. 8318.53 I MATCH EXISTING I SLOPE N: 1642831.62 E: 2240765.54 ELEV., 8316.98 14: 1642830.11 1 E: 2240767.03 1 ELEV. 8319.12 MATCH EXISTING I I N: 1642822.78 I E: 2240764.66 f 1 ELEV. 8320.42 / A TCH EXISTING N: 1642815.40 / / E: 2240763.49 / / ELEV. 8323.03 MATCH EXISTING 8360 8360 8355 HORIZONTAL SCALE: 1" = 40' VERTICAL SCALE: 1"=10' - VOLUME (CF) (BBL) 8365 8315.68 0 0 0 8316.00 5 1 8355 8318.00 425 76 0.01 8360// 10,045 1,789 0.23 8322.00 31,241 5,564 /\ 8360 58,081 10,345 1.33 8326.00 90,805 16,173 2.08 8328.00 129,697 23,100 2.98 175,005 31,170 8355 8331.58 215,393 38,363 4.94 8332.00 226,816 40,398 5.21 8333.58 272,380 48,513 6.25 83501 �` r8355 8350 8350 8350 / / -- 8345 r EXISTING EXISTING GROUND / 8345 - 8340 FENCE I 8345 \/ / / 8340 - 8335 _ To' BUFFER / f / - 8345 \ s-- 8330 - 1 WATER SURFACE // 8330 _ -. MAXIMUM - / \ ELEVATION=8333.58 / 8325 \ \\ // 8325 8320 \ / 8320 r 11 8340 1 1 8315 L_s=20%1 - 2.5 2 5 8340 8310 FINISHED GROUND 8310 8335 1_EXISTING 1 GROOM 8335 i' 8330 \ MAXIMUM WATER SURFACE 8330 ELEVATION=8333.58 T \ /( 8325 8325 \\ 1 8320 \\ -----2.o, 8320 S 1 8315 FINISHED ------ 8315 2.5 GROUND - - 2.5 8310 T 8310 -- 10+00 8370 11+00 12+00 13+00 SECTION NORTH -SOUTH 8370 8365 HORIZONTAL SCALE: 1" = 40' VERTICAL SCALE: 191=1 0' VOLUME VOLUME (CF) (BBL) 8365 8315.68 0 0 0 8316.00 5 1 8318.00 425 76 0.01 8360// 10,045 1,789 0.23 8322.00 31,241 5,564 /\ 8360 58,081 10,345 1.33 8326.00 90,805 16,173 2.08 8328.00 129,697 23,100 2.98 8330.00 175,005 31,170 8355 8331.58 215,393 38,363 4.94 8332.00 226,816 40,398 5.21 8333.58 272,380 48,513 6.25 r8355 8350 8350 / / -- 8345 r EXISTING EXISTING GROUND / 8345 - 8340 FENCE I -i. -I \/ / / 8340 - 8335 _ To' BUFFER / f / - 8335 (APPRD)e) s-- 8330 - 1 WATER SURFACE // 8330 _ -. MAXIMUM - / \ ELEVATION=8333.58 / 8325 \ \\ // 8325 8320 \ / 8320 11 8315 L_s=20%1 8315 2.5 2 5 8310 FINISHED GROUND 8310 0+00 1+00 SECTION EAST -WEST 1 CORNER OF SUMP PIT N: 1642832.66 E: 2240743.55 ELEV. 8315.31 CORNER OF SUMP PIT N: 1642828.85 E: 2240743.48 ELEV. 8315.24 CORNER OF SUMP PIT N: 1642832.46 E: 2240747.24 ELEV. 8315.40 TOP OF BERM N: 1642799.01 E: 2240709.41 ELEV. 8332.01 / 7 / N: 1642811.14 E: 2240752.39 ELEV. 8324.26 MATCH EXISTING x x 0 CORNER OF SUMP PIT N: 1642828.84 E: 2240747.13 ELEV. 8315.32 TOP OF BERM N: 1642799.15 E: 2240791.83 ELEV. 8332.18 N: 1642805.22 E: 2240749.81 ELEV. 8326.81 MATCH EXISTING SUMP PIT GRADING INSET SCALE: 1"=5 NOTES: 14+00 1. SITE FEATURES AND TOPOGRAPHY WAS PROVIDED BY WILLIAM H. SMITH & ASSOCIATES P.C. 550 EAST SECOND NORTH, GREEN RIVER, WY, (307) 875-3638. 2. ALL CONTOUR INFORMATION USED FOR DESIGN SHALL BE FIELD VERIFIED. 3. POND VOLUMES SHOWN ON PLANS SHALL BE FIELD VERIFIED. 4. CONTRACTOR TO MAINTAIN 2% SLOPE FROM MANIFOLD PADS TO POND. 5. REFER TO SHEETS 7, #, AND 9 FOR SITE DETAILS. EXISTING WATER IMPOUNDMENT POND STAGE -STORAGE ELEVATION VOLUME VOLUME VOLUME (CF) (BBL) (AF) 8315.68 0 0 0 8316.00 5 1 0.00 8318.00 425 76 0.01 8320.00 10,045 1,789 0.23 8322.00 31,241 5,564 0.72 8324.00 58,081 10,345 1.33 8326.00 90,805 16,173 2.08 8328.00 129,697 23,100 2.98 8330.00 175,005 31,170 4.02 8331.58 215,393 38,363 4.94 8332.00 226,816 40,398 5.21 8333.58 272,380 48,513 6.25 *NOTE: MAXIMUM WATER SURFACE ELEVATION PROVIDING 2' OF FREEBOARD PROPOSED WATER IMPOUNDMENT POND STAGE -STORAGE ELEVATION VOLUME VOLUME VOLUME (CF) (BBL) (AF) 8315.24 0 0 0 8316.00 6 1 0.00 8318.00 1,758 313 0.04 8320.00 9,950 1,772 0.23 8322.00 28,375 5,054 0.65 8324.00 55,216 9,834 1.27 8326.00 87,939 15,663 2.02 8328.00 126,831 22,590 2.91 8330.00 172,139 30,659 3.95 8331.58 212,527 37,853 4.88 8332.00 223,950 39,887 5.14 8333.58 269,515 48,003 6.19 *NOTE: MAXIMUM WATER SURFACE ELEVATION PROVIDING 2' OF FREEBOARD N Zw 1- Q 040 ta o In J Q 0 S www.oaconsulting.com oEn o ., cotr �M CD co N N o O o J w I- L OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. Cali before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION w 0 REVISIONS GRADING PLAN & POND SECTIONS LLL 0 H W Q W o- o• O Z U O 0 20 cc _ W ~ I- Qcc 0 N O 0) 10 M O 04 GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: QNQC by: project no.: 012-1372 drawing no.: 04_121372_PDSEC.dwg date: 01.21.2014 MEC) WEP WEP WEP SHEET 4 of 9 al 3 I -O N 1" -- CL r7 N 2 0 rw r7� N Q CO x Ln 0Cd CC r') L wr vj w a.) LJ %x to 1- IL N r7 r•-• Ne) M I N o't 0 + (.1 0 0) - O N O_ 0 0 L: ••Li 0 NOTES: 1. SITE FEATURES AND TOPOGRAPHY WAS PROVIDED BY WILLIAM H. SMITH & ASSOCIATES P.C. 550 EAST SECOND NORTH, GREEN RIVER, WY, (307) 875-3638. 2. ALL CONTOUR INFORMATION USED FOR DESIGN SHALL BE FIELD VERIFIED. 3. POND VOLUMES SHOWN ON PLANS SHALL BE FIELD VERIFIED. 4. REFER TO SHEETS 7, #, AND 9 FOR SITE DETAILS. O (O 03 CENTERLINE EXISTING ROAD N: 1643047.17/ E: 2241007.17/ EXISTING ACCESS ROAD EXISTING ACCESS ROAD CENTERLINE CENTERLINE EXISTING ROAD N:1642758.58± E: 2240845.87/ I I I I I 1 1 // CENTERLINE EXISTING ROAD N:1642719.33± E: 2240801.10/ 0 1"=20' 0' 10' 20' 40' SCALE IN FEET PROPOSED MANIFOLD PAD ctp PROPOSED MANIFOLD PAD / 0 8370 8370 8365 HORIZONTAL SCALE: 1" = 40' VERTICAL SCALE: 1"=10' LIMIT OF SURVEY 8365 83608360 8355 EXISTING ACCESS sr,$eff. 8355 8350 ROAD CENTERLINE 8350 — EXISTING GROUND 8345 — — 8345 8340 8340 1 ,ter i — 8335 _ S^f 8335 11 8330 8330 - 8325 8325 -15' Se -2% I, EXISTING ACCESS ROAD ROADWAY SECTION SCALE: 1"=:20' N Zw 1- OQ - U o J Q 0 www.oaconsulting.com OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. CaII before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION w O wo LU Z REVISIONS ROADWAY PLAN AND PROFILE 596-32C WATER IMPOUNDMENT RETROFIT MARATHON OIL COMPANY O 04 GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: QA/OC by: project no.: 012-1372 drawing no.: 05 121372 RDP&P.dwg date: 01.21.2014 MEO WEP WEP WEP SHEET 5 of 9 �Q 0 0 FINISHED GROUND SEE GRADING PLAN, SHEET 5 PROPOSED 3" HDPE LOAD OUT LINE DETAIL 2 EXISTING BIRD NETTING POST DETAIL 3 27. SLOPE DETAIL 4 PIPE SUPPORT BLOCK, SEE DETAILS THIS SHEET EXISTING GROUND nTYPICAL 3" LOAD OUT PIPE PROFILE Scale: r=10' HOT -DIP GALVANIZED PIPE CLAMP SEE DETAIL THIS SHEET (3) #4 REBAR, EACH WAY CENTERED IN SLAB FINISHED GROUND -\ SEE GRADING PLAN, SHEET 5 T P PE SUPPORT BLOCK, SEE DETAILS THIS SHEET SLOPE GROUND AT 2% TOWARD POND 10 1 MANIFOLD PAD SEE DETAILS 11-115 SHEET PROPOSED (2) 3" HDPE LOAD OUT LINE 22.5' PIPE BEND FIELD FIT PIPE SUPPORT BLOCK, SEE DETAILS THIS SHEET PLACE ADDITIONAL 4' SQUARE PIECE OF LINER BENEATH NEW CONCRETE PAD 6" - ..- 1' .moi 3' 4" SQUARE i PIPE TO REST DIRECTLY ON CONVEYOR BELT AND UNER SECURELY WRAP ALL BENDS AND SPLICES WITH LINER MATERIAL TO COVER SHARP EDGES AND PREVENT DAMAGE TO POND LINER 78 LF OF APACHE HOSE & BELTING CO, INC. CONVEYOR BELT, 3 PLY 330, BLACK, 48" WIDTH OR APPROVED EQUAL BY MARATHON OIL COMPANY LINER, SEE SHEET 9 FOR DETAILS EXISTING GROUND 2 3" LOAD OUT PIPE SUPPORT BLOCK DETAIL, BOTTOM OF SLOPE 6 Scale. 1"=1' PROPOSED (2) 3" HDPE LOAD OUT LINE LINER, SEE SHEET 9 FOR DETAILS (3) #4 REBAR, EACH WAY CENTERED IN SLAB 22.5' PIPE BEND FIELD FIT HOT -DIP GALVANIZED PIPE CLAMP SEE DETAIL THIS SHEET 2% SLOPE LINER SLOPE FINISHED GROUND AT 2% SLOPE TOWARD POND 3' 3' 4" SQUARE r SECURELY WRAP ALL BENDS AND SPLICES WITH LINER MATERIAL TO COVER SHARP EDGES AND PREVENT DAMAGE TO POND LINER 3 78 LF OF APACHE HOSE & BELTING CO, INC. CONVEYOR BELT, 3 PLY 330, BLACK, 48" WIDTH OR APPROVED EQUAL BY MARATHON OIL COMPANY 3" LOAD OUT PIPE SUPPORT BLOCK DETAIL, TOP OF SLOPE EXISTING GROUND Scale 1"=1' PROPOSED (2) 3" HDPE LOAD OUT LINE 1'-6" 3' UNER SLOPE FINISHED GROUND ----A. AT 2% SLOPE TO POND 4Th 6` HOT -DIP GALVANIZED PIPE CLAMP SEE DETAIL THIS SHEET MANIFOLD PAD SEE DETAILS THIS SHEET EXISTING GROUND 3" LOAD OUT PIPE ATTACHMENT TO MANIFOLD PAD Scale: 1"=1 NOTES: CONCRETE BOTTOM TO HAVE 2% SLOPE TO POND 1; CONCRETE BOTTOM TO HAVE 2% SLOPE TO POND 3 K6J —11- Scale: u 1. REMOVE EXISTING SPRAY SYSTEM AND RESET AFTER NEW LINER INSTALLATION. PLACE PUMP ON PROPOSED MANIFOLD PAD AT SOUTHWEST CORNER OF POND. DESIGN OF SPRAY SYSTEM IS BY OTHERS. 2. WRAP IN AND OUT LINES (3" AND 4" HDPE PIPES) IN INSULATION TO PREVENT FREEZING. 3. EXTEND BIRD NETTING TO SLOPES ON THE NORTH AND EAST SIDES OF THE POND. 4. FACILITY TO BE SECURED BY INSTALLING LOCKS ON THE GATES. 5. INSTALL NEW LINING SYSTEM. SEE SHEET 9 FOR DETAILS. 6. ALL CONCRETE SHALL BE SAND & GRAVEL MIX WITH 3,000 PSI STRENGTH AT 28 DAYS. 7. ALL REINFORCEMENT STEEL SHALL BE ASTM A615, GRADE 60, EPDXY COATED. 8. MECHANICAL CONNECTIONS WITHIN MANIFOLD PAD TO BE DESIGNED BY OTHERS. a6l Scale: 1"=5' Th 6" NORTHWEST MANIFOLD PAD Scale: 1"=5' s SOUTHWEST MANIFOLD PAD (3) )¢" HOT -DIP GALVANIZED WEDGE ANCHORS WITH 2.5" EMBEDMENT #4 REBAR 18" 0.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS 3'4" CHAMFER (TYP.) Q^ MANIFOLD WALL 16' #4 VERTICAL REBAR W/ 8' HOOK ® 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR, CENTERED IN WALL, PROVIDE #4x2' -0"x2'-0" CORNER BARS (TYP.) MANIFOLD PAD SECTION Scale:1 "=5' 3'4" CHAMFER (TYP. MANIFOLD WALL 6" #4 REBAR ® 18" O.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS 15'-6" 6" TYP. — 1 I. 6" TYP. 3-1 r' #4 VERTICAL REBAR W/ 8" HOOK 0 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR, CENTERED IN WALL, PROVIDE #4x2' -0"x2'-0" CORNER BARS (TYP.) MANIFOLD PAD SECTION Scale:1 "=5' I!/ %" CHAMFER (TYP.) MANIFOLD WALL #4 REBAR ® 18" 0.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS #4 VERTICAL REBAR W/ 8" HOOK ® 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR CENTERED IN WALL, PROVIDE #4x2' -0"x2' -O" CORNER BARS (TYP.) 31' MANIFOLD PAD SECTION Scale:1 "=5' 6" [I 6" - 3'4" CHAMFER (TYP.) MANIFOLD WALL #4 REBAR 0 18" 0.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS I8" 15'-6" -1 #4 VERTICAL REBAR W/ 8" HOOK ® 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR, CENTERED IN WALL, PROVIDE #4x2' -0"x2'-0" CORNER BARS (TYP.) MANIFOLD PAD SECTION Scale:l "=5' P1119 OR P1120 UNISTRUT PIPE CLAMP, HOT -DIP GALVANIZED 3'-0" LONG P1000 UNISTRUT, HOT -DIP GALVANIZED CONCRETE BLOCK PIPE CLAMP DETAIL C6 Scale: 1"=0.5' �3'-4"-{ I( PIPE BLOCK DETAIL K6. Scale: 1"=2' 3'-4" (3) #4 REBAR, EACH WAY, CENTERED IN SLAB 6" PIPE BLOCK SECTION www.oaconsulting.com o(0 ocoN (0 N N O p mom, w¢ I— u - N O 0 O0 Moo 0o 00 C U O C N O (17 OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. Call before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION w Q 0 '0 WZ REVISIONS SITE DETAILS 596-32C WATER IMPOUNDMENT RETROFIT MARATHON OIL COMPANY CO 0 GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: QPJQC by: project no.: drawing no.: date: MEC WEP WEP WEP 012-1372 06-121372_DTL.dwg 01.21.2014 SHEET 6 of 9 CONCRETE BOTTOM TO HAVE 2% SLOPE TO POND 3 s SOUTHWEST MANIFOLD PAD (3) )¢" HOT -DIP GALVANIZED WEDGE ANCHORS WITH 2.5" EMBEDMENT #4 REBAR 18" 0.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS 3'4" CHAMFER (TYP.) Q^ MANIFOLD WALL 16' #4 VERTICAL REBAR W/ 8' HOOK ® 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR, CENTERED IN WALL, PROVIDE #4x2' -0"x2'-0" CORNER BARS (TYP.) MANIFOLD PAD SECTION Scale:1 "=5' 3'4" CHAMFER (TYP. MANIFOLD WALL 6" #4 REBAR ® 18" O.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS 15'-6" 6" TYP. — 1 I. 6" TYP. 3-1 r' #4 VERTICAL REBAR W/ 8" HOOK 0 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR, CENTERED IN WALL, PROVIDE #4x2' -0"x2'-0" CORNER BARS (TYP.) MANIFOLD PAD SECTION Scale:1 "=5' I!/ %" CHAMFER (TYP.) MANIFOLD WALL #4 REBAR ® 18" 0.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS #4 VERTICAL REBAR W/ 8" HOOK ® 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR CENTERED IN WALL, PROVIDE #4x2' -0"x2' -O" CORNER BARS (TYP.) 31' MANIFOLD PAD SECTION Scale:1 "=5' 6" [I 6" - 3'4" CHAMFER (TYP.) MANIFOLD WALL #4 REBAR 0 18" 0.C., EACH WAY, CENTER IN SLAB ON SAND CHAIRS I8" 15'-6" -1 #4 VERTICAL REBAR W/ 8" HOOK ® 18" 0.C., CENTERED IN WALL (1) #4 HORIZONTAL REBAR, CENTERED IN WALL, PROVIDE #4x2' -0"x2'-0" CORNER BARS (TYP.) MANIFOLD PAD SECTION Scale:l "=5' P1119 OR P1120 UNISTRUT PIPE CLAMP, HOT -DIP GALVANIZED 3'-0" LONG P1000 UNISTRUT, HOT -DIP GALVANIZED CONCRETE BLOCK PIPE CLAMP DETAIL C6 Scale: 1"=0.5' �3'-4"-{ I( PIPE BLOCK DETAIL K6. Scale: 1"=2' 3'-4" (3) #4 REBAR, EACH WAY, CENTERED IN SLAB 6" PIPE BLOCK SECTION www.oaconsulting.com o(0 ocoN (0 N N O p mom, w¢ I— u - N O 0 O0 Moo 0o 00 C U O C N O (17 OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. Call before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION w Q 0 '0 WZ REVISIONS SITE DETAILS 596-32C WATER IMPOUNDMENT RETROFIT MARATHON OIL COMPANY CO 0 GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: QPJQC by: project no.: drawing no.: date: MEC WEP WEP WEP 012-1372 06-121372_DTL.dwg 01.21.2014 SHEET 6 of 9 www.oaconsulting.com N O 0 O N c(7 r0 CO a)U 0 o 0 c C D = C O N OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION FENCE DETAILS H LL 0 H W >_ Z Q Z o- w2 20 Z D 00 a- Z 20 w~ 0 N O d) 10 REVISIONS M O 04 GARFIELD COUNTY, COLORADO MEO drawn by: checked by: WEP approved by: WEP QA/QC by: WEP project no.: 012-1372 drawing no.: 07_121372_DTL.dwg date: 01.21.2014 SHEET 7 of 9 USER: dfox Is J 1- 0 r7 N coI i— I0 CC r) jr N �r w o Cr; w �w CC CC Ln IH / 0 N 71- � M N .71- 0 0 + N 0 O N O_ /0 w.. 0 WATER SURFACE N VARIES (15'-17') - 3.0' MIN 1 GAS VENT :/`/jj,%jj/jj�j 2.5H /AAS/A• �AA�VA. PREPARED SUBGRADE PRIMARY LINER GEONET SECONDARY LINER GCL 1 ROUNDED CORNER (TYP.) ANCHOR TRENCH DETAIL z L 1' DEEP COVER SOIL ANCHOR TRENCH FILL 2% SLOPE EXISTING BIRD NETTING POST 1 re 5' MIN 1A ANCHOR TRENCH FILL 2.5' CDOT PRECAST TYPE 7 CONCRETE BARRIER. CENTER OVER 5' WIDE ANCHOR TRENCH EXISTING CUT SLOPE ON EAST SIDE OF POND 2% SLOPE %'%,)., A /`....2/>/,/e'.:'�%%//:/, �A�7AAA'�AA.� 5' MIN ANCHOR TRENCH DETAIL - EAST SIDE OF POND 8 8 N.T.S. PRIMARY LINER 60 MIL HDPE 8" HPDE PIPE* (1) 8" DIA. HDPE* INSPECTION WELL PIPES WITH CAPS GEONET CONDUCTION LAYER BETWEEN PRIMARY & SECONDARY LINERS GEONET CONDUCTION LAYER N.T.S. / EXISTING BIRD NETTING // POST SECONDARY LINER 60 MIL HDPE GEOSYNTHETIC CLAY LAYER / au SEE ANCHOR TRENCH DETAIL ENSURE CONSISTENT SLOPE ALONG PIPE RUN AND BED WITH APPROVED CLASS II BACKFILL LEAK DETECTION WELL DETAIL WITH PIPE RESTING ON SLOPE GRADE N.T.S. NOTE: PIT BOTTOM TO BE SLOPED TOWARDS SUMP PIT. SEE GRADING PLAN FOR ELEVATIONS. *ALSO (2) 4" HDPE PIPES 8" HDPE PIPE CAP OR EQUAL* FINISH BEAD OF SIKAFLEX 1A CAULK (TYP) 1/8"x 1" BANDS OF BUTYL TAPE (TYP) 8" SOLID HDPE PIPE BOOT TWO BANDS OF 1/8" BUTYL TAPE APPLIED OVER PIPE AND TWO GRADE 316 STAINLESS STEEL HOSE CLAMPS PIPE BOOT SEALING DETAIL N.T.S. *ALSO (2) 4" HDPE PIPE CAPS OR EQUAL PRIMARY LINER 60 MIL HDPE PERFORATIONS AT BOTTOM OF PIPE 8" HDPE PIPE CAP OR EQUAL* 16" DEEP SUMP PIT FILLED WITH GRAVEL WRAPPED IN 8 OZ NON -WOVEN TEXTILE 7 ANCHOR TRENCH GRANULAR BASE BACKFILL MATERIAL PER SPECIFICATIONS SUBGRADE PRIMARY LINER 60 MIL HDPE GEONET SECONDARY LINER 60 MIL HDPE GEOSYNTHETIC CLAY LAYER TYPICAL POND LINING SYSTEM DETAIL N.T.S. SEE DETAIL 4 STRIP OF GEOTEXTILE VENTS ON 100' NOMINAL CTRS LOCATED TO AVOID 60 MIL HDPE PROTECTIVE COVER COMPACTED SUBGRADE GAS VENT LOCATION DETAIL N.T.S. HDPE BONNET EXTRUSION WELD TO BASE LINER HDPE LINERS EXTRUSION WELD 2 1/2" BREATHER VENT CUT INTO LINER SYSTEM (THROUGH GEOSYNTHETIC CLAY LINER) 4 AIR/GAS VENT DETAIL \...8 / N.T.S. GCL 7 SUMP DIMENSIONS 4'X4' MAX. SUMP PIT FILLED WITH GRAVEL GEONET 3' NOMINAL 8" DIA. MONITORING CONDUIT TIE TO 3.5" DIA. BIRD -NETTING POST TIRE SECURING DEVICE PRIMARY LINER 60 MIL HDPE 9 \ TIRE LADDER PIT TOP USED CAR TIRES TIED OR BANDED TOGETHER AND LAID ON PIT SLOPE. LOCATE AT LOCATIONS INDICATED IN THE FIELD. SECURE TO STEEL BIRD NETTING POST. 8 N.T.S. GUY WIRE ANCHORED TO STEEL BIRD NET POST SECONDARY LINER 60 MIL HDPE 8 J N.T.S. *ALSO (2) 4" HDPE PIPE CAPS OR EQUAL 0A SECTION 8 / N.T.S. FROM BOTTOM OF POND TO Q 1 7 1- METAL RING WELDED TO TOP OF POLE FOR ANCHORING GUY WIRE 6"x6"x3/8" PLATE WELDED TO STEEL POLE WITH NUMBER Avz-- INDICATOR CUT THROUGH PLATE (BOTH SIDES OF PLATE) TYPICAL 17 LD 6" 16 N 2 CONCRETE FILLED TRUCK TIRE nSTAFF GAGE DETAIL / CLASS II BACKFILL FORM DEPRESSION FOR LEAK DETECTION PIPE / N.T.S. GENERAL NOTES: GEOTEXTILE CUSHION R BELOW TIRE 1. EXISTING LINER SHALL BE FIELD VERIFIED AND REMOVED. THESE DETAILS SHALL BE USED FOR NEW LINER INSTALLATION. 2. CONTACT THE ENGINEER IF FIELD CONDITIONS ARE DIFFERENT THAN THOSE ASSUMED IN THE DESIGN AND DESIGNED ANCHOR TRENCH DIMENSIONS AND/OR COVER SOIL DEPTH CANNOT BE ACHIEVED. 3. SINCE SITE-SPECIFIC DATA WAS NOT AVAILABLE, THE VALUE FOR THE FRICTION ANGLES BETWEEN GEOMEMBRANES AND SOIL/GEOMEMBRANE HAS BEEN ESTIMATED FROM LITERATURE GUIDANCE FROM WASTE CONTAINMENT SYSTEMS, WASTE STABILIZATION, AND LANDFILLS, SHARMA/LEWIS 1994 AND A STUDY DONE BY MARTIN ET. AL. [MARTIN, J.P., KOERNER R.M., AND WHITEY, J.E., "EXPERIMENTAL FRICTION EVALUATION OF SLIPPAGE BETWEEN GEOMEMBRANES, GEOTEXTILES AND SOILS," PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON GEOMEMBRANES, IFAI, 1984, PP. 191-196]. CONSERVATIVE VALUES FROM THE RANGES PROVIDED IN THE AFORE MENTIONED LITERATURE WAS USED DETERMINING ANCHOR TRENCH DIMENSIONS AND RUN OUT LENGTH. Zw Q o� tin ta Jin a 0 S www.oaconsuiting.com o° o ., Go (0 N N O O o 6 J w I- Il �L 5:0 >o. 0 0 • ttiN C I• . o m N-0 OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. CaII before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGG NG, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION w 0 REVISIONS ANCHOR TRENCH DETAILS LL 1- 0 1- w W >_ Z Q Z o- w 2 2p 0U Z D o0 Z 2p W Q I— a� U N d) 10 O 04 GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: QA/OC by: project no.: drawing no.: date: MEO WEP WEP WEP 012-1372 08_121372_DTL.dwg 01.21.2014 SHEET 8 of 9 w 1— Q D_ D 0 w 2 Q J (J w _J 5 m Ln Q D- 0 X Q 0 0 -ow z w D O J Li U N r`) 3 0< Ia_ r -- N-) �I ml cE r OV) N O Ijj LaJCC cy x F- 3 I� 0 N � M '71- O d' o N U a)_ O N C 0 3 0 0 N J 0' 25' 50' 100' SCALE IN FEET tit Zw Oa - U in 0 taInv) J < 0 www.oaconsulting.com O co 0 in (0 N O p rn J �( IlJQ OLSSON ASSOCIATES ASSUMES NO RESPONSIBILITY FOR EXISTING UTILITY LOCATIONS (HORIZONTAL OR VERTICAL). THE EXISTING UTILITIES SHOWN ON THIS DRAWING HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS HOWEVER THE RESPONSIBILITY OF THE CONTRACTOR TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES. Know what's below. Call before you dig. CALL 811 SEVENTY-TWO HOURS PRIOR TO DIGGING, GRADING OR EXCAVATING FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES REVISIONS DESCRIPTION 1- 0 0 U w W 9 W 1- 0 0 0 w 0 0 NI > 1- 0 0 0 w 0 0 MI > 1- 0 0 w 0 0 > W 1- 0 0 U w W �I W 1- 0 0 U w 0W I W 1- 0 0 0 w 0 0 nl W 1- 0 (ES w 0 0 nl W H 0 O w 0 0 w 0 0 w 0 0 w 0 0 w 0 0 w 0 0 w w 00 0 W 0 z N M tO n m 0) z �0 (ID WN LEGEND ■ to � =I 1= ■ 8340 BASIN BOUNDARY BASIN DESIGNATION 10 YR RUNOFF COEFF. 100 YR RUNOFF COEFF. BASIN AREA IN ACRES EXISTING MINOR CONTOUR EXISTING MAJOR CONTOUR DRAINAGE FLOW DIRECTION DESIGN POINT EXISTING/PROPOSED DRAINAGE CONDITIONS NOTES 1. NO BUILDING, STRUCTURE OR FILL WILL BE PLACED IN THE WATER IMPOUNDMENT AREA AND NO CHANGES OR ALTERATIONS AFFECTING THE HYDRAULIC CHARACTERISTICS OF THE WATER IMPOUNDMENT AREA WILL BE MADE WITHOUT THE APPROVAL OF THE COUNTY. 2. MAINTENANCE AND OPERATION OF THE WATER IMPOUNDMENT AREA IS THE RESPONSIBILITY OF THE PROPERTY OWNER. IF OWNER FAILS IN THIS RESPONSIBILITY, THE COUNTY HAS THE RIGHT TO ENTER THE PROPERTY, MAINTAIN THE WATER IMPOUNDMENT AREA, AND BE REIMBURSED FOR COSTS INCURRED. 3. ALL DRAINAGE APPURTENANCES AND BASIN BOUNDARIES SHALL BE VERIFIED. AS -BUILT DRAWINGS SHALL BE PREPARED BY A REGISTERED PROFESSIONAL ENGINEER PRIOR TO ISSUANCE OF CERTIFICATE OF OCCUPANCY FOR ANY STRUCTURE WITHIN THE DEVELOPMENT. 4. PERMISSION TO REPRODUCE THESE PLANS IS HEREBY GIVEN TO GARFIELD COUNTY FOR COUNTY PURPOSES ASSOCIATED WITH PLAN REVIEW, APPROVAL, PERMITTING, INSPECTION AND CONSTRUCTION OF WORK. EXISTING/PROPOSED DRAINAGE BASIN SUMMARY DESIGN PT. BASIN I.D. AREA (AC) DISCHARGE 10—YR (CFS) DISCHARGE 100—YR (CFS) NE NE 0.36 0.18 0.33 SW SW 3.02 1.32 2.40 THE WATER IMPOUNDMENT POND IS SELF CONTAINING AND WILL NOT HAVE AN OUTLET INTO THE EXISTING TERRAIN. DRAINAGE BASIN PLAN H 0 1- w If_ z z a W C M0 Z 00 2 O LL � Hw N M CO M r O N GARFIELD COUNTY, COLORADO drawn by: checked by: approved by: OAlOC by: project no.: drawing no.: date: MEO WEP WEP WEP 012-1372 09 121372 DRNG 01.21.2014 SHEET 9 of 9 Impact Analysis Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 OLSSON ASSOCIATES Article 4 — Impact Analysis Marathon Oil Company 32C Produced Water Pond SECTION 4-203.G. IMPACT ANALYSIS 1. Adjacent Land Use. Land uses adjacent to the project site are predominately natural gas operations and seasonal cattle grazing. The project site is located within an 880 acre parcel. Land uses on adjacent properties also include natural gas and agricultural operations. 2. Site Features The site is located north of Parachute, Colorado on the Roan Plateau in Section 32, Township 5 South, Range 96 West, 6th Principal Meridian. Pond 32C is located on an existing well pad. The site is located along a ridge top on the Roan Plateau. The project is situated on the dividing ridge between House Log Gulch and Little Creek. No wetlands or drainages showing characteristics of Waters of the U.S. (WOUS) are located at the project site. The project site is located on an existing disturbance surrounded by sagebrush dominated shrublands, scattered mountain shrublands, and aspen woodlands on north and east facing slopes. 3. Soil Characteristics According to the Natural and Geologic Hazard Assessment Report the soils, consisting of the following units, are within the study area around the 32C Water Impoundment: Soil of the Parachute-Irigul complex, 5 to 30 percent slopes, was mapped in the vicinity of the Site. This complex is characterized as a loam to extremely channery loam that ranges in depth between 20 and 40 inches. The soil is well drained with low available water capacity. Water transmitting capacity ranges from moderately low to moderately high (0.06-0.2 in/hr). The parent material of the soil is residuum from weathered bedrock, which typically is composed of siltstone, sandstone, or shale in the vicinity of the facility. Also present on the western extent the facility area is the Parachute-Irigul-Rhone association, 25-50 percent slopes. This association has similar physical and textural characteristics to the Parachute-Irigul complex, although the Rhone member has a greater potential depth (up to 55 inches in thickness) that is derived from colluvium. The Site is located on a saddle between two drainages — Little Creek to the northeast and House Log Gulch to the southeast. The terrain surrounding the Site undulates 760 Horizon Dr., Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com Marathon Oil Company 32C Produced Water Pond creating a hummocky upland area parallel to the drainages. The slopes in the vicinity of the Site are gentler than those adjacent to the drainages. The depth to bedrock is expected to lie at depths of 20 inches to 40 inches below ground surface (bgs). This is a limitation for shallow excavations and some construction projects. 4. Geology and Hazard The Natural and Geologic Hazard Assessment Report provides the following conclusions and recommendations following a review of the available site data for natural and geologic hazards in the vicinity of Marathon's 32C Water Impoundment Site located in Garfield County, Colorado. Geological hazards are not expected to be associated with the installation of buried utilities. Shallow bedrock and slopes may be a limitation to this construction. Avalanche areas are present in the northeastern parts of Garfield County in parts of the Park Range and Flat Tops mountain range. Avalanche conditions are not expected to be present in area of the Site. Landslides, mudflows, earthflow and soil creep are not expected to be a geologic hazard affecting the Site. These conditions are present in areas immediately north of the town of Parachute, but are not present in the immediate vicinity of the Site. Rockfall areas are not present in the area of the Site. Rockfall areas are present in parts of the steep canyons and narrow drainages incised by area streams, but are not expected to be a hazard in the vicinity of the Site. The Site is not in an alluvial fan hazard area. Alluvial fans are present along parts of the Colorado River drainage to the south at lower elevations. Slope is a limitation associated with the Parachute-Irigul complex soils and certain types of development. The water impoundment area is on a ridge between two drainages where the slopes are gentler than in adjacent areas. The water impoundment was constructed on the cut side of the pad. The water impoundment has been engineered and designed to mitigate the limitations for slopes in the area. Corrosive or expansive soils and rock are not expected to be present in the vicinity of the proposed water impoundment Site. Rocky soils may exist in the vicinity of the site which may impact the proposed development. Collapsible soils are not present in the vicinity of the proposed water impoundment Site. No significant faulting is known in the water impoundment Site. No flood prone areas are mapped in the vicinity of the site. Flash flooding is an issue for lower elevations along Little Creek and House Log Gulch and areas along the Colorado River located to the south are prone to flood risks. There are no mining activities shown in the vicinity of the site. Natural gas well drilling has been conducted in the area since the 1960s. There are no significant radioactive mineral deposits known in the immediate area of the site. The presence of NORM may be an issue with exploration and production and could be an issue with used pipe scale or used equipment. Radioactive materials are not expected to pose a significant hazard at the Site. Impact Analysis Page 2 Marathon Oil Company 32C Produced Water Pond 5. Groundwater and Aquifer Recharge Areas The proposed project site is not located in a mapped floodplain. According to information prepared by the Natural Resources Conservation Service (NRCS), the soils in the location of this proposed water impoundment facility have been classified as well drained. An individual septic disposal system (ISDS) will not be used at this site, so saturated soils will not have to support the facility. The site has been graded and BMPs are implemented to control stormwater run-off and soil erosion. The pad perimeter is bermed at the top of downhill slopes, the downhill toe of the slope is also bermed or has fiber rolls installed, a sediment pond/depression was placed on the pad, and disturbed areas off of the pad were seeded and hydro -mulched. This information can be found in the SWMP document for Pad Site 596-32C. The 32C facility will use the following measures to protect water bodies and ground water resources: The facility is designed to hold 35,279 bbls as working capacity. This allows 2 feet of free -board. The 2 feet of free -board will accommodate direct precipitation that may enter the impoundment and allows a safety margin. The impoundment is lined with two 60 mil reinforced Polyethylene (RPE) liners over bentonite mats. The facility is designed with leak detection. Four wells are installed to monitor groundwater. 6. Environmental Impacts Marathon commissioned WestWater Engineering (WWE) to perform a Wildlife and Sensitive Areas Report for the proposed project area. This report is provided as an attachment to this application. a. Determination of long-term and short-term effects on flora and fauna; Flora The proposed project is located on an existing disturbance surrounded by sagebrush dominated shrublands, scattered mountain shrublands, and aspen woodlands on north and east facing slopes. No vegetation will be removed as a result of this project. WWE reviewed the Colorado Natural Heritage Program (CNHP) database, soils and terrain at the project site, and previous WWE surveys indicate that there are no threatened, endangered, and sensitive plant species, or their associated suitable habitats known to occur within the project area. Fauna Federally and State Listed Candidate, Threatened, Endangered, and Species of Concern Sage -grouse are highly dependent on sagebrush dominated habitats on the Roan Plateau. The quality and quantity of this habitat type dictates its suitability for sage - Impact Analysis Page 3 Marathon Oil Company 32C Produced Water Pond grouse. Disturbance to sagebrush shrublands that reduces the availability and suitability of presently occupied habitat would affect this species. Due to previous development on the site, it is unlikely that sage -grouse would be adversely affected by the project during the breeding or brood rearing season. There is the potential for the northern pocket gopher and sensitive species of bats to become trapped in the pond in the absence of adequate mitigation measures; however, Marathon currently has in place a CPW approved wildlife fence to prevent animals from entering the pond. Raptors No nest sites are located where removal of the nest tree is a concern, and no occupied raptor nests have been identified within 0.25 -miles of the site. Should a nest become occupied within 0.25 miles of the project site during the life of the facility, it could be indirectly affected by disturbances associated with operation and maintenance of the site. Indirect disturbances to nest sites are often mitigated when vegetation or terrain features are present to screen the nest from direct line of sight or when development takes place outside of nesting seasons. Migratory, Non -migratory and Birds of Conservation Concern (other than raptors) No additional sagebrush dominated shrublands would be lost that are important for Brewer's Sparrows. There is currently a CPW approved wildlife net covering the produced water pond to prevent birds from entering. American Elk and Mule Deer There is the potential for elk and deer to become trapped in the pond in the absence of adequate mitigation measures; however, Marathon currently has in place a CPW approved wildlife fence to prevent animals from entering the pond. There is also the potential for temporary disturbance associated with human presence and equipment operation. This disturbance may add stress to these species during critical times of the year, such as fawning and calving, and may also cause avoidance of the area. Black Bear and Mountain Lion No additional vegetation will be lost in habitats that are crucial for black bear or mountain lion. Indirect effects from operation and maintenance of the project site should not impact either species. Potential encounters of black bear with personnel could occur if garbage or food is available to resident bears. Small Mammals, Birds (BCC), Amphibians, and Reptiles There is the potential for animals to become trapped in the pond in the absence of adequate mitigation measures; however, Marathon currently has CPW approved fencing and netting in place to prevent wildlife from entering the pond. Effects of habitat loss to these species are expected to be negligible due to previous development of the site and the large amount of habitat available in the surrounding area. Impact Analysis Page 4 Marathon Oil Company 32C Produced Water Pond b. Determination of the effect on designated environmental resources, including critical wildlife habitat; As stated above, the site has been previously disturbed. No critical wildlife habitat will be lost due to the conversion of the existing pond to an E & P facility. Noxious weeds will be controlled on the site during the life of the project. The site will be reclaimed after it is no longer required for natural gas production. c. Impacts on wildlife and domestic animals through creation of hazardous attractions, alteration of existing native vegetation, blockade of migration routes, use patterns, or other disruptions and; The proposed storage area will not create hazardous attractions or alter existing native vegetation. The proposal will not block wildlife migration routes or use patterns. d. Evaluation of any potential radiation hazard that may have been identified by the State or County Health Departments The proposed site is not located on or near a Uranium Mine Tailings Radiation Control Act (UMTRCA) Site or other known radiation hazard site. Radon is a naturally occurring, odorless and colorless radioactive gas that is produced by the radioactive decay of radioactive minerals present in the soils and bedrock. According to the Colorado Department of Public Health and Environment (CDPHE), Colorado has a moderate to high radon potential. The potential presence of radon is not expected to represent a geologic hazard or a significant worker exposure issue. 7. Nuisance Adjacent lands will not be impacted by the generation of vapor, dust, smoke, glare or vibration beyond the standards permitted by the Garfield County Land Use and Development Code or CDPHE. Marathon will use water or magnesium chloride as necessary for dust suppression during construction and operation of the facility. Any lighting on-site will be down cast. Marathon has obtained an air quality permit from CDPHE for this facility. This document is contained in the application. Air quality permits compliance is based on through -put which is monitored and documented. Marathon evaluates their facilities on a yearly basis to determine if additional permits are required or existing permits need modification. 8. Hours of Operation The facility will be in operation around the clock. The site will be remotely monitored. Personnel will not be stationed at the facility but will be checked approximately five times a week and formally inspected once a month. Maintenance will be performed on a scheduled basis and when required during any emergency. Impact Analysis Page 5 Traffic Study Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 O\OLSSON ASSOCIATES BASIC TRAFFIC ANALYSIS MARATHON OIL COMPANY 32C WATER IMPOUNDMENT FACILITY GARFIELD COUNTY, COLORADO OA Project No. 012-1372 September 2013 760 Horizon Drive, Suite 102 1 Grand Junction, CO 81506 1 970.263.7800 1 Fax 970.263.7456 INTRODUCTION & OBJECTIVE This Basic Traffic Analysis summarizes findings performed for Marathon Oil Company (Marathon) proposed 32C Water Impoundment Facility located on an existing 3.5 acre pad lying in the SE '/ of the SW 1/4 of Section 32, Township 5 South, Range 96 West of the Sixth Principal Meridian, County of Garfield, State of Colorado. The site is approximately 11.0 miles northwest of the town of Parachute arid 4.4 miles from County Road 215. The water impoundment facility is currently constructed and its status is being changed from a temporary facility with an operational life of three (3) years to a more permanent facility with an operational life of 20 years. The facility will be operated, and reclaimed in two phases. These phases include: • Operation (20 years) • Reclamation (21 days) It is expected that the lifespan of the site will be approximately 20 years. The goal of this water impoundment project is to conserve water by recycling flow -back and produced water for re -use in well stimulations or drilling. Water will be transported to the proposed facility primarily via pipeline and only as needed by truck. EXISTING NETWORK This water impoundment facility will be accessed from CR 215 to Garden Gulch Road and via a series of private roadways. According to the Garfield County Road Inventory Report, CR 215 is classified as a Local road and is a two lane asphalt roadway with gravel shoulders. The road has a posted speed limit of 35 mph and is a designated haul route according to maps available on the Garfield County Road and Bridge Department web page. Garden Gulch Road is a private road that was built and is maintained by the natural gas industry to provide access to the operations on top of the Roan Plateau. This road surface is a combination of gravel and native materials. Access is limited to activity associated with the natural gas industry and is controlled by a security gate west of the road's intersection with CR215. A Vehicle Safety Area is located immediately east of the security gate. This location is designed to allow vehicles to install chains if required by weather conditions or when directed by personnel at the security station. Basle Traffic Analysis Marathon 32C Water Impoundment Facility 1 September 2013 BACKGROUND TRAFFIC Current land uses for parcels along Garden Gulch Road are primarily related to natural gas development and production. Continuous traffic records are taken at the lower Garden Gulch Road guard shack. Monthly traffic counts were provided between June 2012 and February 2013 and included a breakdown of vehicle type. This data set represents the approximate maximum volume of traffic that could travel up Garden Gulch Road (see Table 1). The monthly traffic counts were converted to passenger car equivalents (PCE) to account for the impacts of larger trucks. Passenger car equivalent volumes were calculated as prescribed by the guidance in the Colorado State Highway Access Code (SHAG). Monthly ADT for this time span ranged from approximately 125 vpd (PCE) to approximately 300 vpd (PCE). AM vehicles entering and exiting the area are assumed to be servicing natural gas production and drilling in the region. Thus, as previously noted, the traffic impacts associated with this established water facility (Table 2) would be a component of the larger data set (Table 1) typically collected and accounted for at the lower security station. Between the months of October 2012 and February 2013, there has been a decreasing trend in ADT, most recently dropping to as low as 125 vpd (PCE). This is a 50% decrease in traffic and is related to a reduction in drilling operations in the area. Existing traffic data at the lower Garden Gulch Road guard shack is included in Table 1. Table 1: Average Daily Traffic (ADT) in PCE at Lower Garden Gulch Guard Shack *Road closed Basic Traffic Analysis Marathon 32C Water Impoundment Facility 2 September 2013 12 -Jun 12 -Jul 12 -Aug 12 -Sep 12 -Oct 12 -Nov' 12••Dec 13 -Jan 13 -Feb Pickups 160 180 174 209 167 0 114 113 81 Single -Unit 18 21 33 22 16 0 12 17 10 Multi -Unit 26 20 13 15 20 0 24 11 7 Total 274 282 280 297 260 0 210 181 123 *Road closed Basic Traffic Analysis Marathon 32C Water Impoundment Facility 2 September 2013 TRIP GENERATION & DISTRIBUTION Trip generation is generally determined using rates found in the ITE Trip Generation Manual. Rates from this publication are applied to values related to the size of the proposed site to estimate the trips expected to enter and exit the site. In this case, no rates are provided for facilities similar to these. To estimate trips expected for this site, information was gathered regarding the expected traffic based on previous projects similar to this one. The following table summarizes the expected average and maximum trips for each phase discussed previously. During the operational phase of the project vehicles accessing the facility will primarily consist of pickup trucks. Occasionally single -unit bobtail trucks and multi -unit tanker trucks will access the facility. The site will be visually inspected daily and remotely monitored. Daily inspection will be conducted by personnel already in the field performing similar activities at other near -by facilities. No personnel will be stationed at the facility on a regular basis. During the reclamation phase of the project the site will be access by pickup trucks transporting personnel and single - unit and mufti -unit trucks transporting loaders and similar equipment. Trucks will also be used to remove equipment and materials and apply fertilizer and seed. Table 2: Trip Generation — Water Impoundment Facility Phase Average Maximum Trips/Day Trips/Day Percent Trucks Total TripslPhase Phase Duration Operation 2 8 10 % 14.600 20 years Reclarnation 10 i 18 18 % 588 21 days AUXILIARY LANE ANALYSIS As defined in the Garfield County Road Inventory Report, CR 215's Functional Classification is Local, set by Colorado Department of Transportation (CDOT) and the Federal Highway Administration (FHWA). The State Highway Access Code does not designate a threshold for auxiliary lane requirements for a Local road. However, the lowest classification of rural roads, R -B, is given a left -turn deceleration lane when turning volumes exceed 10 vph. Basic Traffic Analysis Marathon 320 Water Impoundment Facility 3 September 2013 Furthermore, research from the Transportation Research Board (TRB) suggests that for rural conditions, particularly with high truck volumes, there is a safety benefit to providing left -turn refuge even for turning volumes as low as 10 vph. It is difficult to assess the need for this treatment at CR 215 and Garden Gulch Road given indeterminate existing traffic data. When looking at this isolated site, It is clear that turning volumes would not exceed even this low threshold, but existing daily traffic volumes would suggest that existing peak hour turning volumes have the potential to exceed 10 vph. As a result of this information and the actions taken by other focalities which have experienced progressive and cumulative roadway impacts, Olsson staff believes it would be reasonable to expect the decision makers in Garfield County will require further study sometime in the future on this intersection to determine the cumulative effect of the activities on Garden Gulch Road and the corresponding need for improvements at its intersection with CR 215. RECOMMENDATIONS Based on the expected trip generation rates discussed above, the increase in average daily traffic is not expected to be significant. During operation of the facility there woufid be no increase in truck traffic compared to current volumes. Based on the results of the analysis, no mitigation is recommended for the water impoundment facility. Attachment - Traffic Volume Map Basic Traffic Analysis Marathon 320 Water Impoundment Facility 4 September 2013 Legend 0 32C Water Impoundment Garden Gulch Road Highway - Local Roads [XXX] Average Daily Traffic, 2013 [XXX] Average Daily Traffic, Operations 0 05 1 2 Miles yN s PROJECT NO: DRAWN BY: 0121372 Jenna Muhlbach DATE 8127/2013 TRAFRC VOLUMES MAP 32C WATER IMPOUNDMENT MARATHON OIL COMPANY GARFIELD COUNTY, COLORADO OLSSON ASSOCIATES 700 HORIZON DRIVE: SUITE 102 GRAND JUNCTION, CO 81506 TEL 970.263.7630 FAX 970.263.7656 FIGURE TV -1 Water Supply and Distribution Plan Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 OLSSON ASSOCIATES MARATHON 32C PRODUCED WATER POND WATER SUPPLY AND DISTRIBUTION PLAN LUDC 4-203.M. Water Supply and Distribution Plan. The Marathon 32C facility does not require a potable water source for personnel or freshwater for sanitary facilities, landscaping or day to day operations of the facility. The operations of the facility will be similar to other natural gas operations in relatively remote areas of Garfield County. No potable water will be provided at this facility. The proposed use is an unmanned facility with personnel onsite only for short intervals. Personnel provide their own potable water carried in their vehicles. Marathon makes potable water available at their field office to staff and contractors. Sanitary facilities will not require a source of water and will be provided by portable toilets located at numerous sites in the field per OSHA standards. Landscaping is not being proposed, and a water system is not required to maintain any plantings. The storage facility does not use fresh water in its daily operation. The water stored in the 32C Pond is generated from natural gas production. Water is delivered to this facility predominately via pipeline as demonstrated in the attached Water Line Map. The source of the water is the nontributary Williams Fork Formation as documented on the attached Piceance Well Summary. The ground water in the Williams Fork Formation was determined as nontributary by the State Engineer as documented in the attached "Produced Nontributary Ground Water Rules" section 17.7.D.7.d. and map A -7d. 760 Horizon Drive, Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com 400 0 1 000 50 0 20 00 4000 60 00 EXISTING 19C LATERAL \ PROPOSED PAD 596 -20t - Li 1 9" EXISTING PAD 596-19C EXISTING 20C LATERAL— PAD 596-20C EXISTING STING NORTHERN PIPELINE PROP SED 51 irPAD 6-29A (361,64 EXISTING 31A LATERAL EXISTING PAD 586-29C EXISTING EXISTING PAD 596-31A 31C LATERAL"fts, EXI STING 32C LATERAL EXI STING PAD 596-31C EXISTING PAD 590-320 EXISTING POND A EXISTING POND C EXISTING NORTHERN PIPELINE 4443y?gra- Not EXISTING LAYDOWN LINE 2 - 3" STEEL UNE sirthiAD 596-33A ROPOSED EXI STING EXISTING PAD 59643C EXISTING NORTHERN PIPELINE .077 1 4" POLy LINE PAD 598-34D EXISTING Th. 36D LATERAL ASTING PAD 598-35D -4:4* EXISTING- Th_ 340 LATERAL PROPOSED PAD 696-6A P POSED Pro 697-2A I PROP ierPAD cr; 5 -Per EXISTING — PAD 697-1C 0 SED — 40-4AD 698-5A ROPOSED 1 ISTI NG 1C LATERAL PAD 6974X AT% EXISTING PAD 696-5C GARDEN GULCH LATERAL -4" POLY IJNES- EXISTING CDP 1X LATERAL EXISTING 2C LATERAL PROPOSED PAD 898-6C ROPOSED PAD 697-11 P. • GARDEN GU CH LATERAL EXISTING EXISTING 1 aft L. IME LINES PAD 2A 711X ERAL ic PAD 697-11C EXISTING CENTRAL PIPELINE EXISTING 18C EXTENSION LINE CENTRAL PIPELINE sik1 - 4" POLY LINES 41 a PROPOSED rAD 697 -140Th EXISTING 1 ,t,..„ CENTRAL PIPELINE POSTING , PAD 697-23X EXISTING PAD 697-130 EXISTING 8C LATERA EXISTING PAD -2 18C EXTENSION UNE EXI STING PAD 697-21A ROPOSED PAD 697-22C STING 23X LATERAL PROPO CASCADE LATERAL 2 -4" POLY UNES CASCADE LATERAL EXISTIN CENTRACPIPELINE 1 4" POLY UNES PROPOSED PAD 697 -230Th HAYSTACK LATERAL) r 2-4"POLY LINES PROPOSEDL PAD 697-23C L~ PROPOSED PAD 897-26A - PRO +SED PAD i 87-288 1 -� L 28 bsRPA EXISTING I PAD 697-28C PRO OSED /Ss, PAD 697-260 PROPOSED AD 697-35A PP ADROPT9C7SE2A6 PPRADOPThiOSADErNic HAYSTACK LATERAL 2 .4" POLY UNES PROPOSED PROPOSED PAD 797-111r-isbe 1 PROPOSED -ACT! PAD 797 -11 - Cs\ .4\ e PROPOSED PAD 797-11D AccA- HAYSTACK LATERAL 6147), ACIT 44, els PAD 698-18A c"1/ cl., 18A LATERAL EXISTING I 18C LATERAL 1 EXISTING PAD 696-18C PROPOISED PAD eSi3-7A LEGEND 0 EXISTING VALVE CAN EXISTING WATER LINES EXISTING PAD LOCATION EXISTING ROADS WILLIAM H. SMITH & ASSOCIATES P.C. SURVEYING CONSULTANTS 550 EAST SECOND NORTH PHONE 307-875-3038 GREEN RIVER. WY 307-075-3538 WATER LINE MAP AND VALVE CAN LOCATIONS ENTIRE PROJECT AREA MARATHON OIL COMPANY P.O. Rom 3128 5555 Son Felipe Housron, TX 77253 Mauston, TX 77056 DRAWN BY: CED CHECKED BY: WHO DATE: 03/25/2010 JOB NO: 26099 SCALE: NOTED SHEET 1 OF 1 Piceance Well Summary 32C Production Water Storage API # Lease Name Well Number Location Prod Formation 05045141960000 CHEVRON -MARATHON 23A -11D 6S 97W 11 NE SW WILLIAMS FORK 05045142050000 CHEVRON -MARATHON 32D -11D 6S 97W 11 NE SW WILLIAMS FORK 05045142300000 697-13C 25 6S 97W 13 SE SW WILLIAMS FORK 05045142480000 697-13C 12 6S 97W 13 SE SW WILLIAMS FORK 05045142510100 697-13C 27 6S 97W 13 SE SW WILLIAMS FORK 05045142520000 697-13C 14 6S 97W 13 SE SW WILLIAMS FORK 05045142540000 697-13C 21 6S 97W 13 SE SW WILLIAMS FORK 05045144420000 CHEVRON -MARATHON 13A -6D 6S 97W 1 NE SE WILLIAMS FORK 05045144430000 CHEVRON -MARATHON 42D -1D 6S 97W 1 NE SE WILLIAMS FORK 05045145060000 696-18C 12 6S 96W 18 NW SW WILLIAMS FORK 05045145070000 696-18C 14 6S 96W 18 NW SW WILLIAMS FORK 05045145090000 696-18C 18 6S 96W 18 NW SW WILLIAMS FORK 05045145110000 696-18C 25 6S 96W 18 NW SW WILLIAMS FORK 05045145170000 696-18C 27 6S 96W 18 NW SW WILLIAMS FORK 05045145180000 696-18C 21 6S 96W 18 NW SW WILLIAMS FORK 05045145620100 697-13C 16 6S 97W 13 SE SW WILLIAMS FORK 05045145630000 697-13C 23 6S 97W 13 SE SW WILLIAMS FORK 05045145640000 697-01C 12 6S 97W 1 NW SW WILLIAMS FORK 05045145650000 596-33C 12 5S 96W 33 SW SW WILLIAMS FORK 05045147100000 697-22C 11 6S 97W 21 SE NE WILLIAMS FORK 05045147110000 697-21C 21 6S 97W 21 SE NE WILLIAMS FORK 05045147180000 697-21A 23 6S 97W 21 SE NE WILLIAMS FORK 05045147280000 697-12A 12 6S 97W 12 SW NE WILLIAMS FORK 05045147370000 696-18A 12 6S 96W 18 SW NE WILLIAMS FORK 05045147970000 697-01C 14 6S 97W 1 NW SW WILLIAMS FORK 05045147980000 697-01C 16 6S 97W 1 NW SW WILLIAMS FORK 05045147990000 697-01C 18 6S 97W 1 NW NE WILLIAMS FORK 05045148000000 697-01C 21 6S 97W 1 NW SW WILLIAMS FORK 05045148010000 697-01C 23 6S 97W 1 NW SW WILLIAMS FORK 05045148020000 697-01C 25 6S 97W 1 NW SW WILLIAMS FORK 05045148030000 697-01C 27 6S 97W 1 NW SW WILLIAMS FORK 05045150200000 697-12A 25 6S 97W 12 SW NE WILLIAMS FORK 05045150210100 697-12A 27 6S 97W 12 SW NE WILLIAMS FORK 05045150220000 696-18A 27 6S 96W 18 SW NE WILLIAMS FORK 05045150230000 696-18A 23 6S 96W 18 SW NE WILLIAMS FORK 05045150240000 696-18A 21 6S 96W 18 SW NE WILLIAMS FORK 05045150250000 696-18A 16 6S 96W 18 SW NE WILLIAMS FORK 05045150260000 696-18A 18 6S 96W 18 SW NE WILLIAMS FORK 05045150270000 696-18A 25 6S 96W 18 SW NE WILLIAMS FORK 05045150280000 696-18A 14 6S 96W 18 SW NE WILLIAMS FORK 05045150340000 697-12A 16 6S 97W 12 SW NE WILLIAMS FORK 05045150360100 697-12A 21 6S 97W 12 SW NE WILLIAMS FORK 05045150370000 697-12A 23 6S 97W 12 SW NE WILLIAMS FORK 05045150830000 596-30C 28 5S 96W 31 NW NE WILLIAMS FORK 05045150840000 596-31A 21 5S 96W 31 NW NE WILLIAMS FORK 05045155820000 697-2A 43 6S 97W 1 NW SW WILLIAMS FORK 05045155830000 697-2A 41 6S 97W 1 NW SW WILLIAMS FORK 05045158270000 596-35D 27 5S 96W 35 SE SE WILLIAMS FORK 05045160150000 697-2C 27 6S 97W 2 SE SW WILLIAMS FORK 05045160260000 596-31C 13 5S 96W 31 NW SW WILLIAMS FORK 05045160660000 596-19C 28 5S 96W 19 NW SW WILLIAMS FORK 05045161460000 697-28C 23 6S 97W 28 NE SW WILLIAMS FORK 05045161470000 697-28A 18 6S 97W 28 NE SW WILLIAMS FORK 05045163210000 596-32C 25 5S 96W 32 SE SW WILLIAMS FORK 05045168450000 596-34D 27 5S 96W 34 SE SE WILLIAMS FORK 05045168470000 696-6A 13 5S 96W 34 SE SE WILLIAMS FORK 1 of 2 Piceance Well Summary 32C Production Water Storage API # Lease Name Well Number Location Prod Formation 05045170440000 697-33A 11 6S 97W 28 NE SW WILLIAMS FORK 05045176590000 696-5A 14 5S 96W 35 SE SE WILLIAMS FORK 05045176600000 696-5A 11 5S 96W 35 SE SE WILLIAMS FORK 05045177010000 697-12A 14B 6S 97W 12 SW NE WILLIAMS FORK 05045177020000 596-20A 18 5S 96W 20 NW SW WILLIAMS FORK 05045177070000 596-20C 21 5S 96W 20 NW SW WILLIAMS FORK 05045178580000 596-32A 18 5S 96W 32 SE SW WILLIAMS FORK 05045180020000 596-19A 18 5S 96W 19 NW SW WILLIAMS FORK 05045180870000 596-29C 21 5S 96W 29 NE SW WILLIAMS FORK 05045180890000 596-30A 27 5S 96W 29 NE SW WILLIAMS FORK 05045180910000 596-29A 18 5S 96W 29 NE SW WILLIAMS FORK 05045183940000 696-5C 11 6S 96W 5 NW SW WILLIAMS FORK 05045183950000 696-6A 43 6S 96W 5 NW SW WILLIAMS FORK 05045192450000 596-33A 18 5S 96W 33 SW SW WILLIAMS FORK 2 of 2 DEPARTMENT OF NATURAL RESOURCES OFFICE OF THE STATE ENGINEER RULES AND REGULATIONS FOR THE DETERMINATION OF THE NONTRIBUTARY NATURE OF GROUND WATER PRODUCED THROUGH WELLS IN CONJUNCTION WITH THE MINING OF MINERALS "PRODUCED NONTRIBUTARY GROUND WATER RULES" 2 CCR 402-17 17.1 Title The title of these rules and regulations is "Rules and Regulations for the Determination of the Nontributary Nature of Ground Water Produced through Wells in Conjunction with the Mining of Minerals." The short title of these rules and regulations is "Produced Nontributary Ground Water Rules" and in this document the rules and regulations may be referred to as "Rules." 17.2 Authority These Rules are promulgated pursuant to the authority granted the State Engineer in House Bill 09-1303, Section 3, as codified at section 37-90-137(7)(c), C.R.S.; and section 37-80-102(1)(g), C.R.S. 17.3 Scope and Purpose of Rules A. The purpose of these Rules is to assist the State Engineer with administration in the case of dewatering of geologic formations by withdrawing nontributary ground water to facilitate or permit the mining of minerals. B. These Rules establish procedures pursuant to which an operator may petition the State Engineer for a determination that water that is being or that may be withdrawn from geologic formations to facilitate or permit the mining of minerals is nontributary, as defined at section 37-90-103(10.5), C.R.S. These Rules further identify certain areas, locations and formations within the State of Colorado where the State Engineer shall regard ground water removed from geologic formations to facilitate or permit mining of minerals to be nontributary. C. These Rules provide for the use of engineering and scientific methodologies, including the use and results of ground water modeling or other ground water characteristics, such as water chemistry, hydrogeology, or other scientifically based approaches, that an applicant may rely upon in support of a petition for a nontributary determination, D. These Rules apply only to ground water removed from geologic formations to facilitate or permit mining of minerals. Consistent with section 37-90-137(7)(c), C.R.S., the State Engineer is adopting these Rules to assist with his administration of ground water withdrawn to facilitate or permit the mining of minerals. Consistent with the intent of House Bill 09-1303, such administration includes the State Engineer using nontributary Produced Nontributary Ground Water Rules 2 CCR 402-17 1 determinations made pursuant to these Rules for purposes of issuing water well permits pursuant to section 37-90-137(7), C.R.S., and to obviate the need for administration of wells subject to permitting consideration, as allowed by sections 37-90-137(7) and 37- 92-305(11), C.R.S.. The State Engineer shall not use these Rules for permitting of wells pursuant to section 37-90-137(4), C.R.S. E. These Rules do not apply to any aquifer or portion thereof that contains designated ground water and is located within the boundaries of a designated ground water basin. F. These Rules and regulations shall not be construed to establish the jurisdiction of either the State of Colorado or the Southern Ute Indian Tribe over nontributary ground water within the boundaries of the Southern Ute Indian Reservation as recognized in Pub. L. No. 98-290, § 3, 98 Stat. 201 (1984). 17.4 Definitions A. Statutory Definitions. The terms listed below have the identical meaning as in the referenced statutes: 1. "Ground water," also referred to as "underground water," is defined in section 37-90-103(10.5), C.R.S. and section 37-91-102(7), C.R.S. 2 "Nontributary ground water" is defined in section 37 90-103(10.5) C.R.S. Specific Definitions. Unless expressly stated otherwise or the context otherwise requires: 1. "Field" means a region with an abundance of oil andlor gas wells extracting petroleum hydrocarbons from below ground. 2. "Formation" or "geologic formation" means a certain number of rock strata that have a comparable lithology, facies or other similar properties. 3. "Oil and gas well" means any boring or well into the earth's surface designed to find and produce petroleum oil andlor gas hydrocarbons. 4. "Operator" means any person or entity engaged in the mining of minerals, including any person or entity conducting exploration, production andlor maintenance of oil and gas well(s) or field(s), and excluding geothermal energy developers. 5. "Produced water" means ground water removed during the dewatering of one or more geologic formations to facilitate or permit mining of minerals. C. Other Definitions. All other words used herein shall be given their usual, customary, and accepted meanings. All words of a technical nature specific to the well drilling industry shall be given the meaning that is generally accepted in that industry. All words of a technical or legal nature specific to the State of Colorado water rights administration shall be given the meaning that is generally accepted within that field. Produced Nontributary Ground Water Rules 2 CCR 402-17 2 17.5 Process for Obtaining a Determination of Nontributary Ground Water Any person may seek to amend these Rules, through applicable rulemaking procedures, to identify areas within the State of Colorado where the State Engineer shall regard Produced Water to be nontributary, or to amend, based on factual information not presented at the time of adoption, the Rules to exclude areas previously determined to be nontributary pursuant to these Rules or any amendment thereof. An amendment excluding areas previously determined to be nontributary will not invalidate any existing permits issued pursuant to these Rules or otherwise cause the State Engineer to change his administration of wells in existence prior to such amendment. As an alternative to requesting a rulemaking proceeding, an Operator may obtain a determination regarding the nontributary nature of Produced Water through an adjudicatory proceeding before the State Engineer. Any such request for a nontributary determination must be submitted pursuant to the procedures set forth in this Rule 17.5. These Rules do not preclude any Operator from obtaining a determination regarding the nontributary nature of Produced Water, for the purpose of section 37-90-137(7), C.R.S., through an appropriate proceeding before the Water Court. A. Submittal of Petition for a Determination of Nontributary Ground Water An Operator or group of Operators seeking a nontributary determination for Produced Water withdrawn from an existing well or group of wells, or for a well or wells to be constructed in one or more geologic formations within a geographically delineated area ("Applicant") shall file a petition in the form of a letter and accompanying professional report to the State Engineer. The petition shall at a minimum contain the following information: 1. Information indicating whether the ground water will be withdrawn to facilitate or permit the mining of minerals, or withdrawn for purposes other than the mining of minerals. 2. Information indicating whether the Applicant is seeking a nontributary determination for a single well, group of wells, or for all wells, whether such wells have been constructed or are proposed to be constructed in one or more geologic formations within a geographically delineated area. Information sufficient to demonstrate, through analytic or numeric modeling, that the depletions that result from pumping at the location of the well, wells, or at any well constructed, or proposed to be constructed in one or more geologic formations within a geographically delineated area, meet the nontributary standard. In lieu of ground water modeling, the Applicant may provide geologic, hydrologic, and other information sufficient to demonstrate that each subject geologic formation at the well location or within the geographically delineated area is hydraulically disconnected from all surface streams such that there will be no depletions to any surface stream as a result of pumping. B. Notice and Comment Concurrent with submission of the petition to the State Engineer, the Applicant shall file notice of the petition. The notice shall be sent to all parties on the Produced Nontributary Ground Water Notification List for the water division in Produced Nontributary Ground Water Rules 2 CCR 402-17 3 which the subject ground water is located and the primary newspapers in circulation in the affected watersheds. 2. The State Engineer shall establish a Produced Nontributary Ground Water Notification List for each water division within the State of Colorado for the purposes of ensuring that water users within each water division receive adequate notice of proceedings held pursuant to these Rules. In order to establish such notification list, the State Engineer shall, immediately upon effect of these Rules, and in January of each year thereafter, cause to have published in the water court resume for each water division an invitation to be included on such notification list for the applicable water division. Persons on the Produced Nontributary Ground Water Notification List shall be provided notice required pursuant to these Rules by either first-class mail, or, if a person so elects, by electronic mail. 3. The State Engineer shall allow 30 days for any person to respond to the petition. A person may respond to the petition by submitting written comments or by requesting that the matter be referred for hearing on the petition. The person must state the basis for such a request in sufficient detail to allow the State Engineer to determine whether a hearing is appropriate prior to an Initial Determination. The Applicant or the staff of the State Engineer may also refer the matter for hearing on the petition. If the State Engineer determines a hearing is appropriate, he shall schedule a hearing pursuant to the procedures described below. The State Engineer may submit the matter to a designated Hearing Officer at his discretion. C. Initial Determination 1. If no person requests a hearing, the staff of the State Engineer shall evaluate the petition and any written comments, and produce an Initial Determination with respect to whether water withdrawn from an existing well or wells proposed to be constructed in one or more geologic formations within a geographically delineated area is nontributary. The Initial Determination may find that water from only certain wells or certain locations is nontributary. 2. The staff of the State Engineer shall provide a copy of its Initial Determination to the Applicant, any person who submitted written comments, and any person who requested a copy of the Initial Determination. If no person objects to the Initial Determination within 30 days, the staff of the State Engineer will submit its initial determination to the State Engineer for review and certification as a Final Decision, as described below. D. Hearing 1. If any person objects to the Initial Determination, or if the State Engineer has determined a hearing is appropriate before an initial Determination, the matter will be set for an adjudicatory hearing before the State Engineer. The person objecting must state in detail the basis for such an objection to the Initial Determination. Produced Nontributary Ground Water Rules 2 CCR 402-17 4 2. The hearing shall be conducted pursuant to the Division of Water Resources Procedural Regulations, 2 CCR 402-5, and applicable provisions of the State Administrative Procedure Act. The Applicant shall provide notice of the hearing to any person who responded to the petition. 3, For purposes of the hearing, the Applicant shall be considered the party requesting the hearing and the proponent of the order, and shall have the initial burden of proof. Any person who responded to the petition may participate as a party to the hearing. The staff of the State Engineer may participate as a party. 4. The State Engineer may consider the Initial Determination of the staff of the State Engineer as evidence; however, the hearing will be de novo, based upon the evidence presented at the hearing. E. Final Decision If no hearing is held, the Initial Determination shall become the Final Decision of the State Engineer ("Final Decision") with respect to the Applicant's petition. If there has been a hearing on the petition, the decision of the State Engineer shall become the Final Decision of the State Engineer pursuant to procedures set forth in the Division of Water Resources Procedural Regulations, 2 CCR 402-5, and applicable provisions of the State Administrative Procedure Act. F. Effect of Final Decision 1. The State Engineer shall rely upon the Final Decision to evaluate well permit applications submitted pursuant to section 37-90-137(7), C.R.S., where an operator is withdrawing nontributary ground water to facilitate the mining of minerals, and where the nontributary ground water being removed will be beneficially used. 2. The State Engineer shall rely upon the Final Decision to authorize the withdrawal of nontributary ground water to facilitate the mining of minerals without requiring a well permit, pursuant to section 37-90-137(7), C.R.S., where the nontributary ground water being removed will not be beneficially used. 3. Where a Final Decision is applicable to all wells to be constructed within a geographically delineated area, the State Engineer shall rely upon the Final Decision to evaluate all wells constructed within that area for the purposes set forth in the preceding paragraphs. 17.6 Engineering and Scientific Methodologies and Standards A. An Applicant shall comply with the engineering and scientific methodologies and standards described in Rule 17.6 of these Rules when submitting a petition for determination of nontributary groundwater made pursuant to Rule 17.5 of these Rules. B. Conceptual Model For any petition for determination of nontributary groundwater submitted pursuant to Rule 17.5 of these Rules, an Applicant shall include a conceptual model of the geologic Produced Nontributary Ground Water Rules 2 CCR 40247 5 and hydrogeologic characteristics of the relevant area, formation or basin under consideration. The conceptual model shall adequately represent the known geologic and hydrogeologic characteristics of the ground water system. At a minimum, the conceptual model shall define the hydrostratigraphic units along with any known characteristics and boundary conditions. The conceptual model will determine whether numerical or analytical modeling, or alternative methodologies are appropriate for evaluating the petition for a determination of nontributary ground water. For numerical modeling, the conceptual model shall establish the preliminary water budget of the system, which should include sources of water, flow directions, and discharge or exit points. C. Ground Water Modeling 1. An Applicant may use mathematical ground water modeling simulating the ground water system through equations that describe the heads or flows with representative boundary conditions to demonstrate that the withdrawal of produced ground water that is, or is presumed to be, in hydraulic connection with the surface water system is nontributary, as defined at section 37-90-103(10.5), C.R.S. 2. Any ground water model used to demonstrate that the withdrawal of produced ground water that is, or is presumed to be, in hydraulic connection with the surface water system is nontributary shall comply with the protocol for development and use of a mathematical ground water model as generally agreed upon by technical experts in the water resources discipline. Many analytical and numerical models are available that may be found acceptable for use in the evaluation of an Application. However, the Applicant must demonstrate the model's suitability and applicability to determining that the ground water is nontributary. The Applicant should contact the State Engineer's Office regarding the use of models since certain models will have more or less credibility with ground water modeling experts. 3. For situations in which the hydrologic system is under confined or semi -confined conditions, model calculations shall utilize a storativity (storage coefficient). A specific yield value may be used in the calculations where water table (unconfined) conditions exist. 4. All data files used in a numerical or analytical ground water model shall be provided in an electronic format deemed acceptable to the State Engineer's Office. All data files shall include the model input files as well as any supporting data used in the development of the model input files. Any GIS shape files used in the development of the model shall also accompany submittal of the model. 5. Documentation to explain the context and methodology of all ground water modeling shall accompany the Professional Report as described in Rule 17.6.E. It is incumbent upon the Applicant to demonstrate to the satisfaction of the State Engineer's Office that the model code and input data are suitable and applicable for determining that the produced ground water is nontributary. Proprietary information and data need not be disclosed by an Applicant beyond that which is Produced Nontributary Ground Water Rules 2 CCR 402-17 6 deemed necessary by the State Engineer's Office to evaluate the model and verify model input parameters. 6. Any party objecting to a petition for an adjudicatory proceeding or objecting to an Initial Determination, as specified in Rule 17.5, may obtain all supporting information relied upon by an Applicant in developing any ground water modeling, or alternative methodologies. The Applicant's obligation to disclose such information arises upon request of any party and, to the extent that the Applicant deems and the State Engineer finds any such information sensitive, confidential, or proprietary, the parties and State Engineer shall agree to hold such information confidential and protect it from public dissemination under appropriate terms and conditions. D. Alternative Methodology 1 Geologic conditions at a site may effectively isolate the mineral -bearing production zones from the surface water system. An alternative method may be utilized to demonstrate that ground water produced in conjunction with the mining of minerals from the potential and existing production zones is nontributary. Alternative methodologies are intended to demonstrate that the production zones are disconnected from the surface water system by a lithologic discontinuity or structural separation between the production zone and its outcrop equivalent. 2. The criteria for demonstrating isolation of an existing or potential production zone from the surface water system may include both direct and indirect physical evidence such as that obtained from drilling, borehole geophysical logging,, surface seismic and geophysical surveys, drill stem and pump tests, geochemical analyses and surface and subsurface mapping. Geologic and geophysical maps and cross sections shall be based on actual evidence obtained from drilling, geophysical and/or seismic surveys or other verifiable geotechnical investigations. Location, seismic and geophysical survey data, including GIS data, shall be submitted in a paper and/or electronic format deemed acceptable by the State Engineer's Office. 3. Published professional reports, investigations, or technical papers may be provided as a source of factual evidence in support of a petition. 4. Petrophysics, hydrogeologic data and water chemistry may be used to support the conclusions of a petition. Samples of water and gas, or other media to be subjected to chemical or isotopic analysis, shall be collected, handled and analyzed to ensure that the results are consistent with the intended use of the data, A detailed description of the sample collection procedures and analytical methods shall be submitted to the State Engineer's Office upon request. Laboratory data shall be submitted in a format deemed acceptable by the State Engineer's Office. 5. Copies of supporting evidence shall be provided to the State Engineer's Office upon request. Such evidence may include, but is not limited to, geophysical logs and surveys, pump and drill stem test data, lithologic descriptions or other Produced Nontributary Ground Water Rules 2 CCR 402-17 7 physical or hydrologic analyses and water quality/chemistry analyses on which the Applicant has relied to support a petition. Proprietary information and data need not be disclosed by an applicant beyond that which is deemed necessary by the State Engineer's Office to evaluate the petition and demonstrate that the data on which the Applicant's conclusions are based is valid. 6. Any party objecting to a petition for an adjudicatory proceeding or objecting to an initial Determination, as specified in Rule 17,5, may obtain all supporting information relied upon by an Applicant in developing any ground water modeling, or alternative methodologies. The Applicant's obligation to disclose such information arises upon request of any party and, to the extent that the Applicant deems and the State Engineer finds any such information sensitive, confidential, or proprietary, the parties and State Engineer shall agree to hold such information confidential and protect it from public dissemination under appropriate terms and conditions. E. Professional Report 1. The supporting data for a petition shall be assembled in a professional report and shall include appendices of the data and calculations used to demonstrate that the ground water is not connected to the surface water system or that the ground water otherwise meets the statutory definition of nontributary ground water as set forth at section 37-90-103(10.5), C.R.S. 2. A detailed map of the proposed nontributary area shall accompany the report and shall be overlain on a standard U.S.G.S. topographic map with scale 1:24000 inches when such area can be shown within the boundary of 7 mile by 14 mile map area. For larger areas, a topographic base map with a scale of 1:50000, 1:100000 or 1:250000 inches may be utilized; using the largest scale possible that will enclose the entire area of the nontributary ground water determination, wells, and locations of data points, surveys, and other features related to the petition. 3. Standard Data Format — For consistency in reporting, the following parameters shall be used as the standard format and units for reporting the stated types of data: Where: L = length (feet); t = time (day). a. Hydraulic conductivity (K) shall be reported in units of L/t (ft/day). b. Transmissivity [T] shall be reported in units of L2/t (ft2/day). c. Water production rate [Q] shall be reported in units of L3/t (ft3/day). d. Specific storage (S$) shall be reported in units of L-1(1/ft), e. Water volume shall be reported in units of L3 (ft3). f. Specific yield, storativity or storage coefficient shall be reported as a ratio. g. Thicknesses (aquifer, formation, etc.) shall be reported in units of L (feet). h. Distances shall be reported in units of L (feet). 4. The Applicant shall submit two paper copies of the report and appendices and one electronic copy, including GIS shape files, in a format deemed acceptable by the State Engineer's Office. Produced Nontributary Ground Water Rules 2 CCR 40247 8 5. A petition for multiple production zones may be submitted with a single report utilizing data from a source or sources that include the same geographic/geologic area. 17.7 Specific Locations of Nontributary Ground Water in Colorado Ground water in the State of Colorado is legally presumed to be "tributary,' or hydraulically connected to surface water in such a fashion so as to require administration within the prior appropriation system in conjunction with surface rights, unless it is demonstrated to be nontributary ground water in accordance with the law. See Simpson v. Bijou Irrigation Co., 69 P.3d 50, 57 n.7 (Colo. 2003). For purposes of administration under section 37-90-137(7), C.R.S. absent a determination made pursuant to Rule 17.5 of these Rules, or other Rulemaking, the State Engineer shall regard all Produced Water within the State of Colorado to be tributary, with the exception of the ground water described in Rule 17.7.A through D. A. The Denver Basin The State Engineer shall regard the bedrock aquifers of the Denver Basin (the Dawson, Denver, Arapahoe, and Laramie -Fox Hills) to be nontributary only where shown to be nontributary by the Denver Basin Rules, 2 CCR 402-6. Pursuant to section 37-90- 103(10.7), C.R.S., the State Engineer shall regard all remaining ground water in the bedrock aquifers of the Denver Basin subject to the Denver Basin Rules to be not nontributary. B. Water Rights Found to be Nontributary by a Valid Court Decree The State Engineer shall regard all water rights that are decreed nontributary by a court to be nontributary only to the extent provided by the court decree and only insofar as such water is used in a manner wholly consistent with the terms and conditions of such decree. C. Existing Ground Water Well Permits House Bill 09-1303, Section 3, codified at section 37-90-137(7)(c), C.R.S. provides "[a]ny rules promulgated pursuant to this subsection (7) shall not conflict with existing laws and shall not affect the validity of ground water well permits existing prior to the adoption of such rules." Therefore, the State Engineer shall regard as nontributary all ground water permitted for withdrawal as nontributary ground water pursuant to well permits issued by the State Engineer prior to the adoption of these Rules. For the purpose of meeting the objectives in the scope and purpose of these Rules, Rule 17.7.D. identifies geographically delineated areas under which the ground water in only certain formations is nontributary for the limited purposes of these Rules. Small-scale maps showing the extents of the delineated areas and identifying the geologic formations are included as a reference in an appendix to these Rules. Larger -scale maps are available on the Division of Water Resources' website along with an electronic version of these Rules. The small-scale and large-scale maps show identical areas and each are incorporated as part of the Rules. The delineated areas may be viewed through Division of Water Resources' public data viewing tools as they are developed Produced Nontributary Ground Water Rules 2 CCR 402-17 9 and the data files describing the areas are also available for downloading from the Division of Water Resources' website. 1. Ground water in the Piceance Basin, Mesaverde Formation, Cameo and South Canyon Coal Groups within the boundaries shown on the small-scale Map A-1 in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 1, available on the Division of Water Resources' website. 2. Ground water in the Northern San Juan Basin, Fruitland Formation within the boundaries shown on the small-scale Map A-2 in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 2, available on the Division of Water Resources' website. 3. Ground water in the Piceance Basin, Neslen Formation within the boundaries shown on the small-scale Map A-3 in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 3, available on the Division of Water Resources' website. 4. Ground water in the Paradox Basin, Paradox Formation within the boundaries shown on the small-scale Map A-4 in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 4, available on the Division of Water Resources' website. 5. Ground water in the foliowing formations in the Sand Wash Basin: a. Wasatch Formation (Hiawatha Formation) within the boundaries shown on the small-scale Map A -5a in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 5a, available on the Division of Water Resources' website. b. Nugget Sandstone, Dakota Sandstone, Mowry Shale, Frontier Formation, Baxter Shale, Mesaverde Group, Lewis Shale, Lance Formation, and Fort Union Formation, within the boundaries shown on the small-scale Map A - 5b in Appendix A, which boundaries are more clearly shown on the large- scale map labeled Map 5b, available on the Division of Water Resources' website. For the Frontier Formation Mowry Shale and Dakota Sandstone, the delineated nontributary area excludes the upthrown fault block lying above the Uinta -Sparks fault system. 6. Ground water in the following formations in the Piceance Basin: a. Ground water in the Weber Formation within the boundaries shown on the small-scale Map A -6a in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 6a, available on the Division of Water Resources' website. b. Ground water in the Morrison and the Sundance/Entrada Formation within the boundaries shown on the small-scale Map A -6b in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 6b, available on the Division of Water Resources' website. 7. Ground water in the following formations in the Piceance Basin: Produced Nontributary Ground Water Rules 2 CCR 402-17 10 a. Ground water in the Undifferentiated Wasatch Formation within the boundaries shown on the small-scale Map A -7a in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 7a, available on the Division of Water Resources' website. b. Ground water in the Middle and Lower Wasatch Formation within the boundaries shown on the small-scale Map A -7b in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 7b, available on the Division of Water Resources' website. c. Ground water in the Iles Formation within the boundaries shown on the small-scale Map A -7c in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 7c, available on the Division of Water Resources' website. d. Ground water in the Williams Fork Formation within the boundaries shown on the small-scale Map A -7d in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 7d, available on the Division of Water Resources' website. These boundaries are also representative of the Undifferentiated Mesaverde Group for the purpose of these Rules. Ground water in the following formations in the Piceance Basin: a. Ground water in the Mancos Formation within the boundaries shown on the small-scale Map A -8a in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 8a, available on the Division of Water Resources' website. b. Ground water in the Dakota Formation within the boundaries shown on the small-scale Map A -8b in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 8b, available on the Division of Water Resources' website. c. Ground water in the Morrison Formation within the boundaries shown on the small-scale Map A -8c in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 8c, available on the Division of Water Resources' website. 9. Ground water in the following formations in the Northern San Juan Basin: a. Ground water in the Pictured Cliffs Sandstone Formation within the boundaries shown on the small-scale Map A -9a in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 9a, available on the Division of Water Resources' website. b. Ground water in the Cliff House Sandstone Formation within the boundaries shown on the small-scale Map A -9b in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 9b, available on the Division of Water Resources' website. c. Ground water in the Menefee Formation within the boundaries shown on the small-scale Map A -9c in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 9c, available on the Division of Water Resources' website. d. Ground water in the Point Lookout Sandstone within the boundaries shown on the small-scale Map A -9d in Appendix A, which boundaries are Produced Nontributary Ground Water Rules 2 CCR 40247 11 more clearly shown on the large-scale map labeled Map 9d, available on the Division of Water Resources' website. e. Ground water in the Dakota Formation within the boundaries shown on the small-scale Map A -9e in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 9e, available on the Division of Water Resources' website. 10. Ground water in the following formations in the Denver -Julesburg Basin, provided such ground water is not in an upthrown fault block: a. Ground water in the Pierre Shale Formation, Parkman Sandstone Member; also known as the Larimer, Richard, and Rocky Ridge Members; within the boundaries shown on the small-scale Map A -10a in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10a, available on the Division of Water Resources' website. b. Ground water in the Pierre Shale Formation, Sussex Sandstone Member, also known as the Terry Member, within the boundaries shown on the small-scale Map A -10b in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10b, available on the Division of Water Resources' website. c. Ground water in the Pierre Shale Formation, Shannon Sandstone Member; also known as the Hygiene Member, within the boundaries shown on the small-scale Map A -10c in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10c, available on the Division of Water Resources' website. d. Ground water in the Lower Pierre Shale Formation within the boundaries shown on the small-scale Map A -10d in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10d, available on the Division of Water Resources' website, e. Ground water in the Niobrara Formation within the boundaries shown on the small-scale Map A -10e in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10e, available on the Division of Water Resources' website. f. Ground water in the Carlile Formation within the boundaries shown on the small-scale Map A -10f in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10f,, available on the Division of Water Resources' website. g. Ground water in the Greenhorn Formation within the boundaries shown on the small-scale Map A -10g in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10g, available on the Division of Water Resources' website. h. Ground water in the Graneros Formation within the boundaries shown on the small-scale Map A -10h in Appendix A, which boundaries are more clearly shown on the attached large-scale map labeled Map 10h, available on the Division of Water Resources' website. Ground water in the Dakota Group within the boundaries shown on the small-scale Map A -10i in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10i, available on the Division of Water Resources' website. Produced Nontributary Ground Water Rules 2 CCR 402-17 12 Ground water in the Lyons Formation within the boundaries shown on the small-scale Map A -10j in Appendix A, which boundaries are more clearly shown on the large-scale map labeled Map 10j, available on the Division of Water Resources' website. 17.8 Severability If any portion of these Rules is found to be invalid, the remaining portion of the Rules shall remain in force and in effect. 17.9 Revisions These Rules may be revised in accordance with section 24-4103, C.R.S. 17.10 Other laws, rules, and decrees These Rules shall be interpreted so as to not conflict with existing laws, rules, or decrees. 17.11 Effective Date These Rules shall become effective 20 days after publication and shall remain in effect until amended or revoked as provided by law. 17.12 Statement of Basis and Purpose The Statement of Basis and Purpose for these Rules is incorporated herein as part of the Rules. Produced Nontributary Ground Water Rules 2 CCR 402-17 13 APPENDIX A Produced Nontributary Ground Water Rues 2 CCR 402-17 14 Tl1S R91W 27 25 rft VA 5 4 3 3 7 B 9 11 35 35 4 3 2 9 11 1' 12 7 g 17 15 15 14 " 15 TI15 FI9OW 37 21 7<a 29 27 ifi 31 • 32: 33 34 35 4 7 1 9 10 11 1 19`'—s. f L` r 31 !1 '4,12 7 - Y 17 I5 Ti25 1191W 17 16i•"'% 1S' 14 T12S i DW 13 21 22 1+ 74 19 33 T115 R&9W 4 9 1a 15 T125 P29W 21 Ti 34 14 it Map Key ® nontributary Area - Streams and Rivers Townships Sections I t I 0 1 2 Miles 2Miles North Fork Getroisoa River T13S R89 W 4lVTHOU O2E® PRCJEQT55NDNTRIN F R" EPIC& NC E NO 5 TRIG010111.1 D State of Colorado — Division of WaterResoasces Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Piceance Basin Mesaverde Formation, Cameo and South Carryon Coal Group Map A-1 } ' ---,— '' `1--- _ ,• T • -r—� --!-_� Y rl L� . -,tet°! 1 t4I 7--i- ,� : 1 , 1- Map Key �, , •t`� - l 1 I II I I 1 r------:•------- _• I � -.ice �1}. C3 Nontributary Area -i I ; _ �. ,� I i I ._ I Rivers I f - 1 1 s Streams and { -�.L- _- �r i tel" Townships r I ; -i— y I f7 ! I I C -j i '-I-i_•.-- i I i-- 4- .��� - i �"•r- _ __ .1. i i ' Sections i -1 T I i, I 1f`; .ITS.. -I, i, -1k - - .I 4: - _ I I j E— =r ! , , i I T 1 _,_-1. -_i-. i+ --I I !- i` It t - --/--17.`.1,41--,1,_,,,. { 11 f Zt J. r J., ii,—.- �i ---'1 I I ! 1 I 3.5 7 Miles 'Y'r ,,. , ;j! � -1--�'r-4?-r+- a !.; 1" = 7 Miles -- 4-1••• ! I --�4-* R qhs �8a �. 4.....[• - r_- *,.I IS'a I _ r y.I~ .I _�+'-i , ,---itoottlMs/-1- ' --� ..,.—._ iy---ti1-3PR7r -i _ i , i - _ -i-Ll� I PrirdJr 1-- _ i_ ralu _ 1 I -J1 } t fir_.r - + I z kal t Y 4,4,_ r -_ �tita r fB fi I I , 1 in Y 1 ""PAr+4 i�43Y�9•n 7t4 f=4'•f I` i-9 5,,-!---, I _-4 � - - - • I '_ _ ---"--1::;;..]I_ I sir I ^ I i! 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I S•,•tr V' . 1"- _}__� I 5 5 5 a I E ..,I, Q,7 3 5 , Q T a 3= , S 5 -r II. .op r w 7 I I. a-.:.9 71 t i2 3 2 1 6 s • 3 2 1 g 3 1- 5 5 a J e - -•,^'J • J- ! I .t 11 .,1-11 f 4 E 9 i1 it 4' 7 • 11a f 11 E_` r. .� I• "j i " --. fl C >6 [r fl C v I !'Z K C 6 ° 1/ a 7 fl 11 Q T b II 1 r �l- 1P C 3 5 L7 n _ 5 I I r'" a s q [ '' 7' 1 1 - .- ,s . . ° ,•ti' �° 1s la v la A M B *- G 1= - t -n - - - M. n Sa 9 77 21 16 E . is & 16 F tf t3 @' R 'IS 7F -1. 4 8 t7 21 iZ 7!. ..a @ 33 l = 3 I* @ 77 21 u = za .e m z1 •_ m .. @ m :t ZZ m u �' la i7 13 TI 6 - . - --- -s-- t3 a • -I = 3 ii @ Zt 21 .-7V h7°. •. g. 3 1a 6 1• fl 1 a $I Z: 4 C 7R.r . 'Ea' KB CYmn E®FlRO JF-CT500N RIEf IOSIF RI MANU 000 _TRIO Aft 1111•® A ,.,.-`• 7. G� t �,, ,. IIESOURMS •11 State of Colomdra --Division of Water Resousces Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Northern San Juan Basin Map A-2 •r Fruitland Formation ,..,,. !3! 2 1 19 . 11 12 115 14 t3 16 J T3S MOM 23 24 ;77 2✓6 2 3 2 i0 11 12 i5 14 13 TIS R1 -1W 47 1- ) Ik T5S 12 7 g 9 10 11 17 16 15 14 -13 > 1$ T3S RH)3W 19 20 21 22 23 29 31 32 , 33 34 6 5- 4; 3 7 9 23 15 10 26 24 19 17 16 15 T3S 1111.02W 20 21 22 7 r 8 10 11 14 13 1g 17 16 15 14 13 T35 RIO1W 19 20 , 21 22 23 27 35 2 11 26 1' 12 31 32._ 33 34 35 36 , 31 32 — 33 34 6 6 d 3 2 1 6 5 4 3 2 1d 13 7 8 9 10 11 kt2 7 a' 9 10 11 1 I'D, 17 16 15 14 ' 13 T49 F.W 1 1' Map Key Nontributary Area Streams and Rivers Townships Sections 147E f I I 0 1 5 3 Miles S 1"= 3Mile s 24 ( T5S R1 1Wr ' J 1 . 12211:122 IOC F;9 C11D3 G®PRCJECTS1100 MTRIB FF3GY.IAP3YF} BUM Ell E LEN *ON TRIM SSCl1 It D State of Colorado —Division of WaterResouires Produced Nontributary Ground Water Rules; 2 CCR 402.17 Nontributary Ground Water in the Piceance Basin Nesien Formation Map A-3 N 4_rl a N U A8.11 - 4 FJ ill tir 48N 43N 43N 112[.7,'_ 1.70! 1 a 1-A., 1b amt ti j :ON N n.t u:r'1 17W 1EW d 4.. j ni : Mon-tra-s Co ullt y !t4 44N N 46N s 1916,A?+y_�t7 GV Gi t • 16W 1 ,V l4W 4Ell 4E41 l!44u 4711 4411 • 4411 e�`3^ty1gi;1 1 , 151N 17W ' isyy r 5an-- PIA fgLie.I ' 43N 4:;K11 17W 1Evs+ 44N 4414 42114 15.A, 141! 13•. r Si Gr7t y. 4.111 4:314 43N 1'ww .4211 . .42N 4,17 J E'Jrl dlrl — ,21,-4 - 41 ti3P1 i If -\ ',13314 f ::3rd r! 5.13334 17 F l • 13...V 113. 17W 18'01 41N : 141 C o u n.: t y 4114 A311 I1Jr1 401 'kW -1 iW 144'4 14Vd ¢ 211 14Vv. i7.- 4117 4744 14Vd Map Key ® Nnntributary Area Streams and Rivers Tovmships Sections 4 1 D 6 12 Miles 1"=12Miles 3741 18u. 371! 3741 17W ' 1 1b==V �1!' 1_. y Pl _.:rd $vV 6 1t}t yfr 13"-V/141 +tr 16./se12 + r 14147 37PJ ;j41 1 W 12% 1 ?334 �P! �'� �N �Fd� 1�r' 17,7 ,3st�,. CO ,, SIJ 1'SsY i 141!7 1?''TR;rj� Mnntez;lrna Count -y r"` •-t a 3511 • 3541 ��1". 3, 7 /'1 41 5H XFl 51 it ')571 • 171]1 113;'4 . 1 4 14b'd 13v'r r 1 �y1r ---34P1' '_ -,34i1 . r 16W 3444 :,a ?4,�1•` 31N' 1544 - frit v --12W' Y,fy ..?3.54'7;44J .34N i 3414 1 grar 3S7J 17'01 :7~qr 1514+ —.�- l 1'" ' --'IV rJ 1. 3'4 _3171J 1 f x1/ 1714r 1E:? 1?1V ;x! f 13447 e c�.r+ s v e. r „�� 141ti Kr( . ^241 :4 41 13.41 'Fl , 2ti ¢ 3241 17,1:7 1F,d;� 1114 New Maxi€o 1 i ;t WAIN 120-4. 6:943100Y.8 C11:1336"1:MPPO JEC1S. 0 T1 B3*smuP NPC FANG EPP,RAP0'- NcJ TRIO$<1f State of Colorado —Division of WaterResourtes Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Paradox Basin Paradox Formation Map A-4 1211 102W - 1111 102W t 1211 101W 1111 1 01W 1211 100W 11H 100W 1 WYOMING COLORADO OH 98W 12H 97W ' UN 96W • 1211 99W I . 1111 99W 1011 99W • 111498W 10N 98W 1111 97W 11t49&W I Map Key liontributary Area StrrtarTIS and Riven Towns hips Sect in ns 1 0 2.5 5 Miles 1" = 5 mile s t _L... „„. - •i 1 ., 1 : -7- --±-i--1--- . ±---i-------1- ' - -1-4---------)!!-i-- ..,..4_ 4' ---;------ -1-, -1- - 7 7,...i•-wT ri ±-1-7-!-----,- - f-+---- r......... " . 11) I ff , I I 1 --!- 1-7 -t--- IMEEN'llaC KO ITD3ETCCPRO ri".11011TR r rev I ....r5aWliltrUt NO IT*IIC1M Stote of Colorado —Division of Water Resoinces Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Sand Wash Basin Wasatch Formation (Hiawatha Member) Map A -5a 1211 102W 1211 101W 1111 102W i101W 1211 100W 1111 100W WYOMING COLORADO 1211 99W . 1114 99W 1011 99W 1211 98W • 11N 98W 10N 98W 1211 97W 111197W - • I , • Map Key 1•Jantributary Area Streams and Rivers QTownships Sections ! i I 0 2.5 5 Miles 1"-5Mile s N 1211 96W 1111 96W 1 �l—_- --� ' F "i— H 6SEY10CKM CYiID36iiiil JECrWO 117/119F IDEV IrrS.9/ 111110 EP Mol TRIMS<11JA';D State of Colorado — DIViS10r1 of Water Resources Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Sand Wash Basin Nugget Sandstone, Dakota Sandstone, Mowry Shale, Frontier Formation, Baxter Shale, Mesaverde Group, LernrisShale, Lance Formation, Fort Union Formation Map A -5b 16 10 11 12 15 14 13 17 1L.,../..7 15 2N102W---- _._2N 103W Li2 Map Key Nortiribulary Area 1 --- Streams and ivers Townships V1 Sect ions yy'' s 1 0 .5 1 Miles 1" 1. 1 Mile 24 25 -1N-103W - i 19 1t 64 31 t e 20 21 29 32 5 2n 27 1 N 021N --7-_- 1 23 26 35 36 2N 101W 31 1:033'IS3C KF G.'®3 @'4f1aR Toi11'ITRIBl1 '11PPQMFJICEWissER 11O.ITRII9E1111,10 State at -Colorado - Divis)on of Water Resources Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Piceance Basin Weber Sandstone Map A -6a Map Key tkorttributary Area Streams and Rivers Townships Sections 0 0 2,0000 4,000 Feet 1", 4,000 Feet o f a t Co u n t y R i o. Bianco C o uin t y 2N 94W 27 34 3 26 2 L 25 36 1 3N -93W - 2N -93W Qi93100M; 90 TIDO eTITIrwJEC T'»0 ITV rf•atfrc,rr_ EMIG ERIortana 1101 77.1B .;111,1>111 Stole of Colorado — Division of WoterResources Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Piceance Basin Morrison Formation and the Sundance/Entrada Sandstone Map A -6b r "" '7 4S 2ND. -es . r 95 1N 1•� .N lancp County 19 16 19 93W 97W r 26 2S 93W 97w 35 39 Saw 97W 2s 96W 39 961st =_S 28 95W 3S 9SW 49 --- 46 A5 4S saw 9?W 96W95WV ' 5S 93W 46 55 55 97W 96W rf1el,d BS 6S 1f11W 5S 58 95W 24W minty 97W Map Key Nonlributary Area Streams and Rivers Townships Sections w+ 1 F 0 6 12 Miles 1" = 12 Miles Il sin 6211:1310CKB C.'iFD] E'111:1PRCJEClSSMCMTRIBF Mai APISPICEANC EMF B truiemCB NO TRIB EX1611 P State of Colorado -- Division of Water Resoutces Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Piceance Basin Undifferentiated Wasatch Formation Map A -7a NEM t 1N 1N 1N 99W 93W 971,+ , Rio Blanco County 1 .-411111 5S58 5S d 1O0W 9vhv 9SvV 97W 9SYa 9b1A! 9 949 - 5S 92W Garfield Count' 68 696S 6S t 6S 6S 101W 1OJ' 93W 97W 9GG696WSSV SS 78 10OW 7S Q, t7S 95W efr 10OW S3W 79 , 94W 95W 94W 83W 8.55 8.55 34W 93W ' SS 9S 9S 95W 94W 93W gg 9 92 ount �•' 1 Map Key Nontributary Area Streams and Rivers Tpwnships +c S ect ions S f 1 G 6 12 Miles 1" = 12 Miles 109 92W CBMIOC KB C BIM PRO JECT55BO BTRIB 1 ICOM AMPCFANO EI.I L IAYBATC 11 NO 11 TRIG Mt11J.1 D State of Cok3,ado — Division of WaterResourres Produced Nontributary Ground Water Rules; 2 CCR 402-17 Nontributary Ground Water in the Piceance Basin Middle and Lower Wasatch Formation Map A -7b 2N 100W 01 1N 1004 18 100W 28 2S 101W 100w 55 1 35 01W 4S 101W 2N 9301 4N 97W --- 3N — 3N 2N r 2N 93W �.°r .sir ! wi 99w11 N 9S'JJ Rio Bianco wr �_ 1N 11.4 91w 9611 County 1N 9 18 15 19 19 18 9301 if ss,A,, 97W 96'W 954 28 SSW 3S 39 100W sew 95W 23 97W 23 961 3S � 3S r-- 3S {{ 36 97w 96 S 3S 95w 48 49 4S 1004--- 96 V —,--45 5S 5S 101W ioow 63 102 69 10111 78 01W 65 100w 75 100W 5S 96'01 55 9301 65 93W 7S 99W 97W 7S et 7S 7S j 7 95W 95W , 3111 1004 --'-- �--- - 94W 5S 55 55 59 97W 96W 9501 94W Garfield County._- 75 6S 6S f 6S 9511 95W 94V 5S 934/ 63 93W 92W 91W 101 9rnA� 75 93W 75 7S 92W 91W 994 330 97werc0 ge8S $5 lr c. 9S1A{ 944 85 _, 93W "a 13_5S: 9.5S r' 94W 9301 SS SS 1000S3W 5S 9S 95 9S SS 97w 951+! 95W 344 Mesa County KAN 109 105 j p 99W 10S 10S 98W( 97W I 964 iiiiii Mr' i NI I IIIIII i Map Key NJontributary Area Streams and Rivers Townships S ect in ns 1V -4fre S I � 6 12 Miles 1"-= 12 Mires 6'. 118 11S 97W 9300 108 10S 109 95W 94W 93W 11S 11S 71S T 44 Ji 31Wr„� no./'624 j` 95 92W is 93W 91W 1 i�Irin` �- 95 95'} 95 81w 90W�.'rF,,, `hrr� 92W _ ,4 91W r Delta County n MI:1716C KR C.'TD3SlIDPRO,lEki55M011TRAI F DSVAIMPCEANC EILIES MOM TRIBE 11 MD State of Colorado Division of Water Resoutces Produced Nontributary Ground Water Rules; 2 CCR 402.17 Nontributary Ground Water in the Piceance Basin Iles Formation Map A -7c ti f -.f-8 C D u 5N 5 ioow- 4N 97W 3N 3N 2N W 15 10?W 39 100W 1N 1N P 1N Et1 1N 1N 99W 331+r 97w E€W 95W ! 94W Rio Blanco County. 2N 99W Yee i. 2N 2N 2N 95t+t+ 95W 2N W 18 99W 28 89W 38 99W 15 93W 15 m 15 15 #; 15 97W w 95Vd 95W 'I 94W 28 2S 93W 97W 3S 93',At 4S 4S45 __ 103W j-9 41+ 9671 -- 101W I 58 5S 1U)W s9w 101 5S SSW 68 ss 103W 99W — 79 75 100W 93w 2S 28 29 - SON 95W c•W 33 3S 3S l 97W 96W 55N S Ir 4S _ d5 a 9 97W —95W --n— -071---- 6ikki 69 93W 58 55 59 5S 97W 95W . 95W 91W I Garfield County .,1—____1�_—$_68 i -- E I 69 6S 6S 6, 6 I 87W ` 95W 941+ WN 921 7S 98W 78 97W 8 95W� r1� p �. i"�S—_'---`39------88'.- --_— _2s• ---G3 vii--_�_—_ 103 93 Jt+ WA? 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'3301 fr : iNV 108 105 105 1G 97W 95aV l 95W M 31W M 1113 -C-a t( -1-t y r - S 118 { 115 115 9 .W 95W • 91We- , 1�S p • I Map Key cNontributary Area Streams and Rivers CD Towns h ips 1h' E Sections 8 0 7 14 Miles 1"= 14 Miles 108 935 1# CUOMOY.8 ORID3 b'lIDPROJE0185N0ITRIB F Ni6`)AAPMFX< ER140E111O RRF_0 N NO N TRIG Mfit »)D State of Colorado —Division of Water Resources Produced Nontributary Ground Water Rules; 2 CCR 4f12.17 Nontributary Ground Water in the Piceance Basin Morrison Formation Map A -Sc Wastewater Management and System Plan Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 OLSSON ASSOCIATES MARATHON OIL COMPNAY 596-32C CENTRALIZED E & P WASTE MANAGEMENT FACILITY WASTE MANAGEMENT AND SYSTEM PLAN LUDC 4-203.N. Wastewater Management and System Plan. The operations of the facility will be similar to other natural gas operations in relatively remote areas of Garfield County. Staff will not be assigned to the facility on a regular basis. Personnel will be at the facility only for short periods of time. Workers will be providing facility maintenance and inspections. Sanitary facilities are provided by portable toilets placed at numerous sites in the field per OSHA standards. These portable toilets are maintained by Redi Services. All waste is hauled to a licensed treatment facility. A "Will Serve" letter is provided documenting the maintenance of these sanitary facilities. 760 Horizon Drive, Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com REDI SERVICES, LLC 2143 AIRPORT RD. RIFLE, CO. 81650 970-625-0233 SUBJECT: WILL SERVE LETTER COMPANY: MARATHON OIL COMPANY LOCATIONS: 32-C 1/8/2014 Redi Services will provide Marathon Oil Company with Porta John Units on the above location. Redi Services will service and maintain the units and dispose of the waste at an approved disposal site. At this time we are disposing of the waste at The West Garfield County Landfill. Thanks, Craig,''Ahe Re Sery ces, LL Regional Mana:er Standards Analysis Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 OLSSON ASSOCIATES ARTICLE 7 — STANDARDS ANALYSIS MARATHON OIL COMPANY 32C PRODUCED WATER POND DIVISION 1. GENERAL APPROVAL STANDARDS SECTION 7-101. ZONE DISTRICT USE RESTRICTIONS The subject property is located in the Resource Lands (RL) zone district of Garfield County. The proposed use is considered a Water Impoundment & Material Handling use according to Table 3-403: Use Table of the Garfield County Land Use and Development Code. This type of use requires a Limit Impact Review (LIR) approval to receive a Land Use Change Permit. SECTION 7-102. COMPREHENSIVE PLAN AND INTERGOVERNMENTAL AGREEMENTS The Pond 32C facility generally conforms to the Garfield County Comprehensive Plan. The site is designated in the Garfield County Comprehensive Plan 2030 as a Resource Production/Natural (RPN) area. The Plan's description of RPN includes support buildings and facilities needed for the natural resource extraction industry. The existing use is not within an area governed by an intergovernmental agreement. SECTION 7-103. COMPATIBILITY The proposed site is located within the boundaries of a large, 880 acre, privately held property. The property is owned jointly by the applicant, Marathon Oil Company (Marathon), as well as Berry Petroleum Company, Wapiti Oil and Gas and PGR Partners, LLC. This facility will be developed, owned and operated by Marathon for their sole use. Natural gas development is the predominate use on the property. The property is also leased for seasonal cattle grazing. The proposed use is intended to provide a centralized and convenient storage location for the natural gas operations in the immediate area. This proposed use is compatible with and supportive of the adjacent uses. SECTION 7-104. SOURCE OF WATER A permanent source of potable water will not be required for workers utilizing the site. This facility is not manned on a regular basis and does not require a water distribution system to properly function. Workers will provide their own potable water in their trucks. A source of potable water is not required for the operation of the facility. The site will be used as a produced water storage facility. Fresh water will not be required for the operation of sanitary facilities. 760 Horizon Drive, Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com Marathon Oil Company 32C Produced Water Pond Portable toilets will be used and all wastes will be hauled to a licensed treatment facility. Fresh water will not be required for landscaping. No landscaping is proposed at this site. SECTION 7-105. CENTRAL WATER DISTRIBUTION AND WASTEWATER SYSTEMS A. Water Distribution System As stated above, the proposed facility will not require a source of potable water or a central water distribution system. B. Wastewater System As stated above, the proposed facility will not require a centralized wastewater system. Portable toilets will be used and wastes will be hauled to a license disposal facility. SECTION 7-106. PUBLIC UTILITIES The facility will not require public utilities in order to operate. Electricity for operations and monitoring will be supplied by either solar panels or an on-site generator. SECTION 7-107. ACCESS AND ROADWAYS A request for a waiver from these standards are contained with the application but information is provided here as a courtesy. A. Access to Public Right of Way The site is accessed from County Road (CR) 215 (Parachute Creek Road) and a series of private roads, including Garden Gulch Road (GGR), Garden Gulch Road Extension (GGRX) and a lease access road that were built and are maintained for the exclusive use of the natural gas industry. B. Safe Access The private GGR and GGRX road system was designed and built by a consortium of oil and gas producers, which the applicant is a member, to provide exclusive access to the natural gas operations in the area and it is not designed for public use. Given the average daily traffic (ADT) that these roads service it should most closely correspond to the Secondary Access road standard of Table 7-107 of the Land Use and Development Code. This standard would require this road to have a slope no greater than 10%, ditches located on both sides of the road and a chip seal or gravel surface. GGR and GGRX both have sections that exceed a 10% grade and much of the surface is made from native materials. Roadbase has been applied to some sections to improve the surface and to repair road damage. In lieu of a roadside ditch a compacted berm has been placed on the downslope side of the roadway to control stormwater, limit erosion and provide a barrier for greater safety. This road is inspected on a regular schedule and after major storm events for erosion and other safety related issues. A maintainer/road grader is used almost daily to maintain the roadway. The roadway is treated with a dust palliative as needed. A security station is manned at the bottom of the road near CR215 to restrict unauthorized persons from entering. The security station also posts when chains are required on this road. A vehicle safety area (VSA) is located in close proximity of the security Standards Analysis Page 2 Marathon Oil Company 32C Produced Water Pond station. During wet or snowy conditions this VSA is used to apply or remove chains from vehicles. The security station can also close the road if necessary due to severe weather conditions. This roadway provides a safe access to the site for the applicant. C. Adequate Capacity The proposed facility will generate little traffic and the current road system has adequate capacity to support the proposal. See Traffic Analysis included with this application for additional details. D. Road Dedications No new public roads are being built or dedicated as part of this project. E. Impacts Mitigated County roads will not be impacted by this project. See the Traffic Analysis for further information. F. Design Standards As stated above, no new roads are being built as part of this project. SECTION 7-108. USE OF LAND SUBJECT TO NATURAL HAZARDS According to the Natural and Geologic Assessment Report the proposed use is not subject to significant natural hazard risks and will not exacerbate existing natural hazards. The following conclusions are contained in the report: Geological hazards are not expected to be associated with the installation of buried utilities. Shallow bedrock and slopes may be a limitation to this construction. Avalanche areas are present in the northeastern parts of Garfield County in parts of the Park Range and Flat Tops mountain range. Avalanche conditions are not expected to be present in area of the Site. Landslides, mudflows, earthflow and soil creep are not expected to be a geologic hazard affecting the Site. These conditions are present in areas immediately north of the town of Parachute, but are not present in the immediate vicinity of the Site. Rockfall areas are not present in the area of the Site. Rockfall areas are present in parts of the steep canyons and narrow drainages incised by area streams, but are not expected to be a hazard in the vicinity of the Site. The Site is not in an alluvial fan hazard area. Alluvial fans are present along parts of the Colorado River drainage to the south at lower elevations. Slope is a limitation associated with the Parachute-Irigul complex soils and certain types of development. The water impoundment area is on a ridge between two drainages where the slopes are gentler than in adjacent areas. The water impoundment was constructed on the cut side of the pad. The water impoundment has been engineered and designed to mitigate the limitations for slopes in the area. Standards Analysis Page 3 Marathon Oil Company 32C Produced Water Pond Corrosive or expansive soils and rock are not expected to be present in the vicinity of the proposed water impoundment Site. Rocky soils may exist in the vicinity of the site which may impact the proposed development. Collapsible soils are not present in the vicinity of the proposed water impoundment Site. No significant faulting is known in the water impoundment Site. No flood prone areas are mapped in the vicinity of the site. Flash flooding is an issue for lower elevations along Little Creek and House Log Gulch and areas along the Colorado River located to the south are prone to flood risks. There are no mining activities shown in the vicinity of the site. Natural gas well drilling has been conducted in the area since the 1960s. There are no significant radioactive mineral deposits known in the immediate area of the site. The presence of NORM may be an issue with exploration and production and could be an issue with used pipe scale or used equipment. Radioactive materials are not expected to pose a significant hazard at the Site. SECTION 7-109 FIRE PROTECTION Marathon will make their Emergency Response Plan (ERP) available to the appropriate fire protection district. The complete ERP (over 500 pages) is available in an electronic format as part of this application. If requested, Marathon will orientate the appropriate fire protection district regarding this facility. DIVISION 2. GENERAL RESOURCE PROTECTION STANDARDS SECTION 7-201. AGRICULTURAL LANDS A. No Adverse Affect to Agricultural Operations The applicant leases the parcel for seasonal cattle grazing. The proposed use will not directly affect this operation. B. Domestic Animal Controls Dogs and other domestic animals will not be permitted on the property or allowed to interfere with livestock. C. Fences The site will be fenced. The facility will not impact livestock operations. D. Roads No new roads will be constructed to access this facility, and the existing road will be maintained. E. Irrigation Ditches The proposed use will not impact irrigation ditches. Standards Analysis Page 4 Marathon Oil Company 32C Produced Water Pond SECTION 7-202. WILDLIFE HABITAT AREAS Marathon commissioned WestWater Engineering (WWE) to prepare a Wildlife and Sensitive Areas Report of the site which is included in this application. A. Buffers The Wildlife and Sensitive Areas Report performed by WWE provides recommendations in regards to wildlife mitigation. Marathon will follow these recommendations if additional disturbance occurs at this location. B. Locational Controls of Land Disturbance The project area is currently disturbed after being previously developed as a well pad and production pond. No additional wildlife habitat disturbance will occur. The conversion of the pad site to an E & P Waste Management facility should not alter current migration patterns. C. Preservation of Native Vegetation The site will be reclaimed after the facility is no longer utilized and will be revegetated with native plant species. Noxious weeds will be controlled during the life of the facility and during the re-establishment of native plants. The recommendations of WWE concerning treatment and control of noxious weed infestations in the Wildlife and Sensitive Areas Report will be followed. D. Habitat Compensation No critical wildlife habitat will be disturbed in converting this site to a storage facility. E. Domestic Animal Controls Domestic animals will not be kept on the site. SECTION 7-203. PROTECTION OF WATERBODIES A. Minimum Setback The proposed site will be more than 35 feet from the Typical and Ordinary High Water elevation of any waterbody. B. Structures Permitted in Setback There will not be any structures located in this setback area. C. Structures and Activity Prohibited in Setback There will not be any structures or activities located in the buffer zone. D. Compliance with State and Federal Laws The facility will comply with all applicable state and federal laws. SECTION 7-204. DRAINAGE AND EROSION The site is an existing disturbed surface area. No additional surface disturbance is planned. BMPs will be used to protect waterbodies from stormwater runoff during the operation of this facility. This facility is more than 100 feet from a waterbody. It does not create more than Standards Analysis Page 5 Marathon Oil Company 32C Produced Water Pond 10,000 square feet of impervious area. A drainage report is included with this application in addition to the SWMP permit. An electronic copy of the SWMP is included with this application. SECTION 7-205. ENVIRONMENTAL QUALITY A. Air Quality This facility will not cause air quality to be reduced below acceptable levels established by the Colorado Air Pollution Control Division and will comply with appropriate Colorado air emissions permitting regulations as applicable. Marathon will use water or magnesium chloride as necessary to control dust on access roads and the project area. B. Water Quality This facility will be operated in compliance with all applicable State and Federal hazardous material regulations. Implementation and adherence to Marathon's Stormwater Management Plan (SWMP) BMPs, Spill Prevention Control and Countermeasures Plan (SPCC), and COGCC Form 28 permit will assure that water quality is protected. There will be no hazardous materials stored at this proposed site. SECTION 7-206. WILDFIRE HAZARDS A. Location Restrictions The site is in a moderate wildfire area according to the Garfield County on-line GIS map resources. B. Development Does Not Increase Potential Hazard The facility will not increase the potential intensity or duration of a wildfire, or adversely affect wildfire behavior or fuel composition. C. Roof Materials and Design All roof materials will be made of noncombustible materials. SECTION 7-207. NATURAL AND GEOLOGIC HAZARDS A Natural and Geologic Hazard Assessment Report is included with this application under a separate tab. According to this report, the Surficial Geology Map provided by Garfield County, Colorado — GIS Department website does not include the area of this project, but no alluvial fan deposits are present in the project area, and no landslide, mudflow, mudflow/slide areas are likely within the boundary of this project area. A. Utilities There are no utilities serving this site. This standard is not applicable. B. Development in Avalanche Hazard Areas According to the Geohydrology Natural and Geologic Hazard Assessment Report avalanche conditions are not expected to be present in the area of the facility. Standards Analysis Page 6 Marathon Oil Company 32C Produced Water Pond C. Development in Landslide Hazard Areas According to the Natural and Geologic Hazard Assessment Report landslides, mudflows, earthflows and soil creep are not expected to be in the immediate vicinity of the proposed facility. D. Development in Rockfall Hazard Areas According to the Geohydrology Report, no surficial geological or soils hazards have been mapped in the immediate vicinity of the proposed facility. E. Development in Alluvial Fan Hazard Area According to the Natural and Geologic Hazard Assessment Report the site is not in an alluvial fan hazard area. F. Slope Development The Natural and Geologic Hazard Assessment Report found that while the Parachute-Irigul complex soils have limitations for some types of development the water impoundment is on a ridge between two drainages that are gentler than the adjacent areas. The water impoundment was constructed on the cut side of the pad and engineered and designed to mitigate the limitations of slopes in the area. G. Development on Corrosive or Expansive Soils and Rock According to the Natural and Geologic Hazard Assessment Report corrosive or expansive soils and rock are not expected to be present in the vicinity of the proposed water impoundment. H. Development in Mudflow Areas According to the Natural and Geologic Hazard Assessment Report collapsible soils are not present in the vicinity of the site. I. Development over Faults According to the Natural and Geologic Hazard Assessment Report there are no significant faulting is known in the proposed site. SECTION 7-208. RECLAMATION After the completion of Marathon's natural gas production in the area, the facility will be decommissioned and reclaimed in accordance with the reclamation plan provided in this application. All of Marathon's surface disturbances (final reclamation requirements) are covered under a statewide bond. The COGCC requires additional bonding of E&P Waste Management Facilities to assure proper reclamation of these types of sites. Standards Analysis Page 7 Marathon Oil Company 32C Produced Water Pond DIVISION 3. SITE PLANNING AND DEVELOPMENT STANDARDS SECTION 7-301. COMPATIBLE DESIGN A. Site Organization The site was designed to accommodate the functional and efficient operations, monitoring and maintenance of the facility. B. Operational Characteristics Operation of the proposed facility will be consistent with nearby uses. Adjacent lands will not be impacted by the generation of vapor, dust, smoke, glare, noise or vibration. Noise will not exceed standards established by the COGCC. The facility will be unmanned but accessible to Marathon personnel 24 hours a day. There will be minimal impacts, if any, to the existing roadway system during the operational phase. C. Buffering Buffering will not be necessary. This site is within a large and remote parcel and is surrounded by similar uses. D. Materials Materials used in the construction of the facility will not detract from any adjacent buildings or uses. SECTION 7-302. OFF-STREET PARKING AND LOADING STANDARDS Adequate parking will be made available to accommodate Marathon personnel during regular operation, inspection and maintenance of the facility. All activities on this site will be conducted out of any public right-of-way. SECTION 7-303. LANDSCAPING STANDARDS The proposed site is located in a rural and remote area of Garfield County. Landscaping is not required for this type of use according to this section of the Land Use and Development Code. Landscaping is not being proposed for this facility SECTION 7-304. LIGHTING STANDARDS A. Downcast Lighting Any lighting will be directed inward, towards the interior of the site. B. Shielded Lighting Any exterior lighting will be shielded so not to shine directly onto other properties. C. Hazardous Lighting Light from the site will not create a traffic hazard or be confused as traffic control devices. D. Flashing Lights The facility will not contain flashing lights. Standards Analysis Page 8 Marathon Oil Company 32C Produced Water Pond E. Height Limitations There will be no light sources exceeding 40 feet in height on the site. SECTION 7-305. SNOW STORAGE STANDARDS Snow will be stored in a vacant section of the existing disturbed area. The site is graded to accommodate snowmelt to insure sufficient drainage. SECTION 7-306. TRAIL AND WALKWAY STANDARDS The proposed site is located in a rural and remote area of Garfield County. The site is within a large property and only accessible to via a private road system. A connection to public facilities is not appropriate or feasible. DIVISION 10 ADDITIONAL STANDARDS FOR INDUSTRIAL USES SECTION 7-1001. INDUSTRIAL USE A. Residential Subdivisions This site is not located in a platted residential subdivision. B. Setbacks This site is located in a large parcel and is more than 100 feet from an adjacent residential property line. C. Concealing and Screening This site is located in a large and remote parcel. Screening from dissimilar uses in the area is not required. D. Storing All products will be stored in compliance with all national, State and local codes and will be a minimum of 100 feet from adjacent property lines. E. Industrial Wastes All industrial wastes will be disposed of in a manner consistent with Federal and State statutes and requirements of the CDPHE. F. Noise Noise will not exceed COGCC noise standards. A noise analysis is provided with this application that demonstrates that the equipment will comply with the standards and will produce approximately 51.5 dB(a) at a distance of 350 feet from the source of the noise. G. Ground Vibration This facility will not generate ground vibrations perceptible beyond the boundary line of the property. Standards Analysis Page 9 Marathon Oil Company 32C Produced Water Pond H. Hours of Operation The facility will be in operation around the clock. The site will be remotely monitored. Personnel will not be stationed at the facility but will check and inspect the site on a regular basis. Maintenance will be performed on a scheduled basis and when required during any emergency. I. Interference, Nuisance, or Hazard This facility will not emit heat, glare, radiation or fumes which will interfere with uses on adjacent properties or constitute a public nuisance or hazard as determined by the standards contained in the Garfield County Land Use and Development Code. Standards Analysis Page 10 Waiver Requests Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 OLSSON ASSOCIATES Marathon Oil Company 32C Produced Water Pond WAIVER REQUESTS Pursuant to Section 4-202 of the Garfield County Land Use and Development Code, Marathon Oil Company requests a waiver for the submittal requirement of a Development Agreement and an Improvements Agreement for the 596-32C Produced Water Pond. Section 4-203.J. Development Agreement A waiver request shall be considered based on the following criteria: 1. The Applicant shows good cause for the requested waiver; Response: Marathon Oil Company wishes to neither propose a phasing schedule nor extend establishment of vested property rights. 2. The project size, complexity, anticipated impacts, or other factors support a waiver; Response: The facility is on a previously disturbed area and requires some modification to meet the COGCC standards for a Centralized E & P Waste Management Facility. 3. The waiver does not compromise a proper and complete review; and Response: The LIR request can be properly and completely reviewed without a development agreement. 4. The information is not material to describing the proposal or demonstrating compliance with approval criteria. Response: A development agreement is not material to describing the purpose, operation and maintenance of the facility or demonstrating compliance with applicable approval criteria. Section 4-203.K. Improvements Agreement A waiver request shall be considered based on the following criteria: 1. The Applicant shows good cause for the requested waiver; Response: No public improvements are being proposed that would warrant the creation of an improvements agreement. 2. The project size, complexity, anticipated impacts, or other factors support a waiver; Response: As stated above no public improvements are being proposed with this request. 3. The waiver does not compromise a proper and complete review; and 760 Horizon Dr., Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com Marathon Oil Company 32C Produced Water Pond Response: The application can be properly and completely reviewed without an improvements agreement. 4. The information is not material to describing the proposal or demonstrating compliance with approval criteria. Response: An improvements agreement is not material to describing the purpose, operation and maintenance of the facility or demonstrating compliance with applicable approval criteria. Pursuant to Section 4-118 of the Garfield County Land Use and Development Code, Effective July 15, 2013, Marathon Oil Company requests a waiver for the standards for Access and Roadways for the 596-32C Produced Water Pond. Section 7-107 Access and Roadways A waiver of standards request shall be considered based on the following criteria: 1. Achieves the intent of the subject standard to the same and better degree than the subject standard: Response: The intent of the roadway standard is to provide safe and adequate access to a development. The Pond 32C Facility will be accessed from CR 215 and then by a series of private roads, principally Garden Gulch Road. This road was designed and built by a consortium of oil and gas producers, which the applicant is a member, to provide exclusive access to the natural gas operations in the area, and it is not designed for public use. Given the average daily traffic (ADT) that this road services, it should most closely correspond to the Secondary Access road standard of Table 7-107 of the Land Use and Development Code. This standard would require this road to have a slope no greater than 10%, ditches located on both sides of the road and a chip seal or gravel surface. Garden Gulch Road does have sections that exceed a 10% grade and much of the surface is made from native materials. Road base has been applied to some sections to improve the surface. In lieu of a roadside ditch, a compacted berm has been placed on the downslope side of the roadway to control stormwater, limit erosion and provide a barrier for greater safety. This road is inspected on a regular schedule and after major storm events for erosion and other safety related issues. A maintainer/road grader is used almost daily to maintain the roadway. The roadway is treated with a dust palliative as needed. A security station is manned at the bottom of the road near CR215 to restrict unauthorized persons from entering. The security station also posts when chains are required on this road. A vehicle safety area (VSA) is located in close proximity of the security station. During wet or snowy conditions, this VSA is used to apply or remove chains from vehicles. The security station can also close the road if necessary due to severe weather conditions. This roadway provides a safe access to the site for the applicant. Waiver Requests Page 2 Marathon Oil Company 32C Produced Water Pond 2. Imposes no greater impacts on adjacent properties than would occur through compliance with the specific requirements of this Code. Response: This private road system does not provide access to residential uses nor is it used by the general public on a regular basis. The waiver of this standard will not create greater impacts on adjacent properties than would occur if it was in full compliance. Waiver Requests Page 3 O'%LOLSSON ASSOCIATES Marathon Oil Company 32C Produced Water Pond WAIVER REQUESTS — ADDENDUM Pursuant to Section 4-202 of the Garfield County Land Use and Development Code, Marathon Oil Company requests a waiver for the submittal requirement of Policy 04-01 for the Garden Gulch Road and the Garden Gulch Road Extension leading to the 32C Produced Water Pond. Section 4-203 Description of Submittal Requirements of the Land Use and Development Code does not require plans for roadways leading to the project site. Section 4-203.D.6. Site Plan, only requires existing and proposed roads be included on the site plan. The road leading to the project area is included on the site plan and in other supporting materials including the Basic Traffic Analysis and Figures sections of the application. Policy 04-01 was issued by the Community Development Director on March 3, 2014 to provide guidance on "Waivers for Roads and Demonstration of Compliance" for Section 7-107. This policy requires that the application must include the following: 1. "Statement of Adequacy" signed by a professional engineer qualified in traffic engineering and licensed by the State of Colorado. 2. "Geometry of the Road" comparing the private road to the design standards of Table 107-7 3. "Safety/Structural Issues" observed and how they will be addressed 4. "Maintenance" of the roadway and maintenance agreements 5. "Travel Demand" of the existing peak and average daily traffic Marathon is requesting a waiver of these submittal requirements for the Garden Gulch Road and the Garden Gulch Extension Road A waiver request shall be considered based on the following criteria: 1. The Applicant shows good cause for the requested waiver; Response: Access to the 32C facility requires travel for over six miles on the Garden Gulch Road. This road section gains approximately 2500 feet in elevation from the lower portion at the intersection with CR215 near Parachute Creek to the top of the mesa. This road traverses significant slopes with a series of switchbacks before reaching the top of the mesa. Further access to the 32C facility requires travel on an additional seven miles of the Garden Gulch Road Extension. This road crosses the top of the mesa. Both of these roads were 760 Horizon Dr., Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com Marathon Oil Company 32C Produced Water Pond built at considerable cost, and they serve dozens of pad sites, multiple support facilities and hundreds of natural gas wells. These roads are critical to the operators that are authorized to use it, and significant effort is provided to maintain them in a safe and adequate condition. Public road standards, public access, and public safety were never considered in the design and on-going maintenance of these roads. This roadway provides a safe access to the site for Marathon employees and other authorized personnel. The road geometry changes on a seasonal and even daily basis. Cross slopes change with each pass of a road grader. Widths change depending on the amount of snow and ice that accumulates along the sides of the roads during the winter. Widths also change as maintenance is performed. Surfaces and grades are constantly modified and additional road base, gravel, and native material is applied to address road damage as needed. Original construction plans no longer reflect the current geometry of the roads. Development of new as -built plans is unnecessary and financially burdensome, would provide information reflective only as a snap -shot in time, and would not provide a true measure of the efforts to provide a safe and adequate access for those that are authorized to use the road. A 20 mph speed limit on the Garden Gulch Road and a 25 mph speed limit on the Garden Gulch Road Extension are enforced. The roadways are treated with a dust palliative, either water or magnesium chloride, as needed. A security station is manned at the bottom of the road near CR215 to restrict unauthorized persons from traveling on the road. The security station also enforces when chains are required on this road. A vehicle safety area (VSA) is located in close proximity to the security station. This VSA is used to apply or remove chains from vehicles during wet or snowy conditions. The security station can also close the road if necessary due to severe weather conditions. Marathon Oil Company is part of a consortium of oil and gas producers that contributes to the on-going maintenance of these roads. Other members include Caerus Oil and Gas (the successor of PDC), Chevron, LINN Energy (the successor of Berry Petroleum), Williams, and PGR Partners. Marathon contributed financially to the original construction of these roads, replaced the bridge over Parachute Creek and continues to provide financial support for on-going maintenance of the roads. Caerus Oil and Gas manages the maintenance of roads and assesses each member of the road consortium a proportional share of the costs. Marathon is not directly responsible for maintenance of these roads. These roads were built for the exclusive use of the natural gas industry. Great cost and effort are expended to maintain these roads in a safe manner for their intended use. The Garden Gulch Road alone cost approximately $10 million to build and during peak use approximately $4 million a year was spent on maintenance. Today, with significantly reduced activity, approximately $1.4 million a year is spent maintaining this road. These roads receive daily attention and are inspected on an almost daily basis for safety related issues. These roads are also inspected for erosion control issues on a 14 day Waiver Requests- Addendum Page 2 Marathon Oil Company 32C Produced Water Pond schedule and after major precipitation events by a third -party contractor. Erosion control BMPs are maintained on a daily basis. A road grader is used almost daily to maintain the roadway. Given the Average Daily Traffic of more than 200 vehicles per day, this road would be equivalent to a Secondary Access Road as described in Table 7-107 of the Land Use and Development Code. The Secondary Access Road standard requires a chip -seal or gravel surface, crowned surface with a 2 -percent cross slope, 3 -percent sloped shoulder, ditches on both sides of the roads, and no more than a 10 percent grade. These roads were not designed or built to these public road standards and will not meet these standards for the majority of their length. In many locations, the roadway is cross - sloped down toward the up-slope side of the road and a ditch. A berm is located on the down-slope (cliff) side of the road to control water run-off, reduce erosion and provide a barrier for additional vehicle safety. This berm provides a greater measure of safety that is not contemplated in the standards found in Table 7-107. Grade will exceed 10 -percent in a number of places along the roadway. An exhibit or map demonstrating the location of where the road deviates with the public road standards would not provide value to Marathon, the road consortium, or the public. Good cause for the waiver request is demonstrated by these reasons. 2. The project size, complexity, anticipated impacts, or other factors support a waiver; Response: The proposed impoundment is for the storage of produced water. This site, on average, will be visited once a day, generating 2 trips per day, typically by personnel performing similar inspections at other Marathon facilities in the area. The impact this project would have on public roads and adjacent properties is minimal at most and likely non- existent. The project or roadway is not part of a subdivision process, does not result in a significant change in population density of the county, and does not create any significant impact on the surrounding area or community. The project is in support of a mineral extraction operation and is located on an approved well location. 3. The waiver does not compromise a proper and complete review; and Response: The review of the impoundment is not compromised by not providing the information requested in Policy 04-01. Other information provided by Marathon, including this waiver request, demonstrates compliance with the intent of the code. 4. The information is not material to describing the proposal or demonstrating compliance with approval criteria. Response: The intent of the criteria found in Table 7-107 is to provide for safe and adequate access to a property. The design standards found in this section are obviously intended for roads providing access to residential and non-residential uses open to the Waiver Requests- Addendum Page 3 Marathon Oil Company 32C Produced Water Pond public. The project area is located on a large remote parcel that can be only accessed over 14 miles of private roads that are not available for use by the public. Pursuant to Section 4-118 of the Garfield County Land Use and Development Code, Marathon Oil Company requests a waiver for the standards of Section 7-107 Access and Roadways for the Garden Gulch Road and Garden Gulch Road Extension. A waiver of standards request shall be considered based on the following criteria: 1. Achieves the intent of the subject standard to the same and better degree than the subject standard: Response: The intent of the roadway standard is to provide safe and adequate access to a development. The 32C Pond Facility will be accessed from CR 215 and then by a series of private roads, principally Garden Gulch Road and the Garden Gulch Road Extension. These roads were designed and built by a consortium of oil and gas producers to provide exclusive access to the natural gas operations in the area, and they not designed for or open to public use. Given the average daily traffic (ADT) that this road services, it would most closely correspond to the Secondary Access road standard of Table 7-107 of the Land Use and Development Code. This standard would require this road to have a slope no greater than 10 -percent, ditches located on both sides of the road and a chip seal or gravel surface. Garden Gulch Road does have sections that exceed a 10 -percent grade and much of the surface is made from native materials. Road base has been applied to some sections to improve the surface. In lieu of a roadside ditch, a compacted berm has been placed on the down-slope (cliff) side of the roadway to control stormwater, limit erosion, and provide a barrier for greater safety. These roads receive daily attention and are inspected on a regular schedule for safety related issues. These roads are also inspected by a third -party contractor on a 14 day schedule and after major precipitation events for erosion issues. Erosion control BMPs are maintained on a daily basis. A road grader is used almost daily to maintain the roadway. A 20 mph speed limit on the Garden Gulch Road and a 25 mph speed limit on the Garden Gulch Road Extension are enforced These roadways are treated with a dust palliative, either water or magnesium chloride, as needed. A security station is manned at the bottom of the road near CR215 to restrict unauthorized persons from traveling on the road. The security station also enforces when chains are required on this road. A vehicle safety area (VSA) is located in close proximity to the security station. This VSA is used to apply or remove chains from vehicles during wet or snowy conditions. The security station can also close the road if necessary due to severe weather conditions. This roadway provides a safe access to the site for Marathon employees and other authorized personnel. Waiver Requests- Addendum Page 4 Marathon Oil Company 32C Produced Water Pond 2. Imposes no greater impacts on adjacent properties than would occur through compliance with the specific requirements of this Code. Response: The proposed impoundment is for the storage of produced water. This site, on average, will be visited once a day, generating 2 trips per day, typically by personnel performing similar inspections at other Marathon facilities in the area. The impact this project would have on public roads and adjacent properties is minimal at most and likely non- existent. The project or roadway is not part of a subdivision process, does not result in a significant change in population density of the county, and does not create any significant impact on the surrounding area or community. The project is in support of a mineral extraction operation and is located on an approved well location. This private road system does not provide access to residential uses nor is it used by the general public. The waiver of this standard will not create greater impacts on adjacent properties than would occur if it was in full compliance with the code or policy 04-01. Pursuant to Section 4-118 of the Garfield County Land Use and Development Code, Marathon Oil Company requests a waiver for the right-of-way, ditch, cross -slopes and maximum percent grade standards of Section 7-107 Access and Roadways for the Lease Road. A waiver of standards request shall be considered based on the following criteria: 1. Achieves the intent of the subject standard to the same and better degree than the subject standard: Response: The intent of the roadway standard is to provide safe and adequate access to a development. The 32C Pond Facility will be accessed from CR 215 and then by a series of private roads, principally Garden Gulch Road, Garden Gulch Road Extension and finally the Lease Road. These roads were designed and built by oil and gas producers to provide exclusive access to the natural gas operations in the area, and they not designed for or open to public use. Given the average daily traffic (ADT) of less than 20 trips that this road serves, it would most closely correspond to the Primitive Roadway/ Driveway road standard of Table 7-107 of the Land Use and Development Code. This road receives regular attention and is inspected on a monthly and after major precipitation events for erosion issues. Erosion control BMPs and the road surface are maintained on an as -needed basis. The roadway is treated with a dust palliative as needed. A security station is manned at the bottom of the road near CR215 to restrict unauthorized persons from traveling on the road. Waiver Requests- Addendum Page 5 Marathon Oil Company 32C Produced Water Pond 2. Imposes no greater impacts on adjacent properties than would occur through compliance with the specific requirements of this Code. Response: The proposed impoundment is for the storage of produced water. This site, on average, will be visited once a day, generating 2 trips per day, typically by personnel performing similar inspections at other Marathon facilities in the area. The impact this project would have on public roads and adjacent properties is minimal at most and likely non- existent. The project or roadway is not part of a subdivision process, does not change in population density of the county, and does not create any the surrounding area or community. The project is in support of operation and is located on an approved well location. This private road system does not provide access to residential uses general public. The waiver of this standard will not create greater properties than would occur if it was in full compliance with the code. result in a significant significant impact on a mineral extraction nor is it used by the impacts on adjacent Waiver Requests- Addendum Page 6 Stormwater Management Permit* Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 *Stormwater Management Plan is provided in electronic version only STATE OF COLORADO John W. Nickenlooper, Governor - Christopher E. Urbana, MD, MPH Executive Director and Chief Medical Officer Dedicated 10 protecting and improving the health and environment of the people of Colorado 4300 Cherry Creek Dr S. Denver. Colorado 80246-1530 Phone (303) 692-2000 Located in Glendale, Colorado http:llwww.cdphe state.colus June 21, 2012 Laboratory Services Division 8100 Lowry Blvd. Denver. Colorado 8.0230.6926 (303)692-3090 Eric R Ward, Ops Supt Marathon Oil Co 743 Horizon Ct. Ste 220 Grand Junction, CO 81.506 RE: Renewal of Permit/Certification Administrative Continuation For: Piceance Area Located at: Parachute Creek.& Carder: Gulch, f lninc, Garfield county Permit No.: COR03C052 Dear Mr. Ward; Colorado Department of Public Health and Environment The Division has received an application to renew the above permit/certification. It has been determined that there is sufficient information to make this permit/certification eligible for renewal. More information may be requested by the Division as progress is made in developing a new permit/certification for the above listed facility. This information must be made available to the Division when requested to complete the permit process. The Di€vision is currently in the process of developing a new permit or master general permit and associated certification for the above permitted facility. The development and review procedures required by law have riot yet been completed. When the discharge permit issued to you for your facility expired on June 30, 2012 your permit is administratively continued and remains in effect under Section 104(7) of the Administrative Procedures Act, C.R.S. 1973, 24-4-101, et sec (1982 rept vol. 10) until the new permit/certification is issued and effective. All effluent permit terms and conditions in your current permit will remain in effect until your new permit/certification is issued and effective. PLEASE KEEP THIS LETTER WITH YOUR PERMIT AND SWMP TO SHOW CONTINUATION OF PERMIT COVERAGE, Sincerely. Debbie Jessop Permits Section WATER QUALITY CONTROL DIVISION xc: Permit File SITE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT WATER QUALITY CONTROL DIVISION TELEPHONE; (303) 692-3500 CERTIFICATION TO DISCHARGE UNDER COPS GENERAL PERMIT COR -030000 STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION Certification Number C0R03C052 This Certification to Discharge specifically authorizes: Marathon Oil Co. LEGAL CONTACT: R. V; Coleman, Operations Mgr. Marathon ©ll Co. P.O . Box 3128 Houston, 7X 77253-3128 Phone # 713/296-2311 rvcolenmu@morathonaii cont LOCAL CONTACT: R. Coleman, Ops. Mgr, Phone # 970/245-5233 rveoleinan@marathonoll.com During the Construction Activity: Oil and Gas Production and/or Exploration to discharge stormwater from the facility identified as Picea nee Area which is located at: Parachute Creek & Garden Gulch area , Co Latitude 39/31/00, Longitude 108/10/00 In Garfield County to: Garden Gulch -- Parachute Creek Anticipated Activity begins 06105/2007 continuing through 0413012012 On >5 acres (>5 acres disturbed) Certification is effective: 07/01/2007 Certification Expires: 06/30/2012 Arcual Fee: $245.00 (DO NOT PAY NOW — A prorated bill will be sent shortly.) Page 1 of 22 Oece,rmn9 Water% Little Creek 1000 ;rim Northwest Lug Bowan 6444 t1 1B00 Feet Southeast Spoil Area Legend m,r, B MAe"Pnr Teo ;tik Pond 7e Rm ✓ -tla&w:C kG+T v. • 'hw+ham rhxh Produced Water Reserve Pit t3 a op Tr. Bern. 80'eme 333 0,rwr T: es 0rKWe+4E' Fere 010,k. r, 000.7 hfronn.SIVbegt 100400,04100 sem. sw.y. ?o goo u.,. Area) Nnl Present Asphalt Or Concrete Balch Plants Project Location Garfield County Map Index Overview Pad Site 596-32C Total Disturbed Area = 337 Acres MARATHON OIL RtVIStw t3Y tIlleE[r r 1''211+2012 BJB tIYPLATE CREA1174 3,14520,2 BJB MAP CFPL. A19[M 5r27i2012 BJB BMP WF VIL^ r.N 3:27r2012 903 1 9MP VE VISION Marathon 011° Stormwater Inspection Form Piceance Operations Summary Location: Grand Valley Field Operator: Marathon Oil Company Inspection Date: 12/30/2013 Inspector Scott Trucks Inspection Type: Routine Title: Production Leader (Marathon) SW Plan: Piceance AreaNVPSfLaydo n Yard Inspection Frequency: Once a Month Inspection Notes: Entire field is frozen and snow covered. Weather Current Weather. Sunny. dear and cold Is this inspection being conducted within 24 hrs of the end of a precipitation event? r Yes IN Na Is there discharge occurring at this time? l` Yes (7 No inspection Details - Piceance Area Location 12: I 595-32C Well Pad Question Result Comments 1. Is the stormwater permit and storrnwater management plan available? `f Yes (— No 2. Have temporary stabilization measures been initiated? `r" v. r No 3. Are installed BMPs working correctly? P res r No 4. Are additional BMPs required? 7 yes No 5. Are all BMPs in place for final stabilization? IV res r No Recommended Corrective Awns Responsible Person P Initials Location 13: Access Road to 595320 Well Pad Question Result Comments 1. Is the stormwater permit and stormwater management plan available? iw res T no 2. Have temporary stabilization measures been initiated? lir Yes r No 3. Are installed BMPs working correctly? P. Yes I' No 4. Are additional BMPs required? r Yes •+ No 5. Are all BMPs in place for final stabilization? Yes L No Recommended Corrective Actions Responsible Person 1 initials Signatures Inspector Deet J Scott Trucks Date: 12/3112013 Site Rep: Date: The above signature also shall certify that the faccty is in compiance with the Starmwater Pollution Prevention Plain and the State Generic Permit for Storerwater Discharge from large and small construction adivities n there are not any instances of non-carnpbarice identrited above MARATHON OIL COMPANY STORMWATER MANAGEMENT PLAN FOR PICEANCE AREA GARFIELD COUNTY, COLORADO Certification Number: COR -03C052 March 5, 2012 Prepared For: Marathon Oil Corporation. 743 Horizon Court, Suite 220 Grand Junction, Colorado 81506 Prepared By: 743 Horizon Court, Suite 110 Grand Junction, Colorado 81506 Marathon Oil Company Piceance Basin Facility SWMP Tracking Table Location Name Inspection Frequency Date Frequency 1 Changed Reclamation Status Area Covered 596-19C Well Pad Monthly 09/07/2011 4.65 596-20C Well Pad Monthly 09/07/2011 4.48 596-29C Well Pad Monthly 09/07/2011 4.78 596-31A Well Pad Monthly 09/07/2011 4.56 596-31 C Well Pad Monthly 09/07/2011 3.85 596-32C Well Pad Monthly 09/07/2011 4.85 596-33C Well Pad Monthly 09/07/2011 3.08 596-34D Well Pad Monthly 09/08/2011 4.55 596-35D Well Pad Monthly 09/08/2011 4.43 696-5C Well Pad Monthly 09/08/2011 5.38 696-18A Well Pad Monthly 07/15/2011 5.2 696-18C Well Pad Monthly 07/15/2011 5.0 697-1C Well Pad Monthly 09/08/2011 4.92 697-1X Well Pad Monthly 09/08/2011 3.63 697-2C Well Pad Monthly 09/07/2011 4.98 697-11X Well Pad Monthly 09/08/2011 3.84 697-12A Well Pad Monthly 09/08/2011 3.82 697-13C Well Pad Monthly 09/08/2011 4.34 697-21A Well Pad Monthly 09/08/2011 5.25 697-23A Well Pad Monthly 07/15/2011 3.13 697-23X Well Pad Monthly 07/15/2011 3.6 697-26A Well Pad Monthly 09/08/2011 5.0 697-28C Well Pad Monthly 09/08/2011 4.36 596-19C Road Monthly 09/07/2011 1.82 596-20C Road Monthly 09/07/2011 1.5 596-29C Road Monthly 09/07/2011 0.65 596-31A/C Road Monthly 09/07/2011 7.16 596-32C Road Monthly 09/07/2011 0.57 596-33C Road Monthly 09/07/2011 0.93 596-35D Road Monthly 09/08/2011 5.31 696-5C Road Monthly 09/08/2011 1.92 696-18A/C Road Monthly 09/08/2011 2.95 697-2C Road Monthly 09/07/2011 3.62 697-11X Road Monthly 09/08/2011 1.75 697-12A Road Monthly 09/08/2011 1.74 697-13C Road Monthly 09/08/2011 1.01 697-21A Road Monthly 09/08/2011 0.34 697-23A Road Monthly 09/08/2011 0.82 697-26A Road Monthly 09/08/2011 0.5 697-28C Road Monthly 09/08/2011 1.43 596-34D Road Monthly 09/08/2011 1.5 Jackrabbit Road Monthly 09/08/2011 2.0 "1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." liliAA122 SIGNATURE Eric Ward Operations Superintendent Marathon Oil Company /06t'rz-a l� DATE Modifications to the Stormwater Management Plan Name of person who made changes Section and Page # Change(s) made Date Jacob Parker 19C Map Removed spoils area. 11/21/11 Jacob Parker 20C Map Add and identify main snow storage area. 11/21/11 Jacob Parker 31A Map Remove old snow storage area and add new main snow storage area 11/21/11 Jacob Parker 31 C Map Added new contours to map and remove spoils area. 11/21/11 Jacob Parker 34D Map Move north snow storage to east, and add contours on SW edge 11/21/11 Jacob Parker 35D Map Remove spoil area. 11/21/11 Jacob Parker 18C Map Add snow storage area on SE corner inside berm 11/21/11 Jacob Parker 1C Map Add snow storage area in NW corner, add new contours. 11/21/11 Jacob Parker 2C Map Remove snow storage area outside N berm 11/21/11 Jacob Parker 12A Map Remove snow storage area outside berm on south 11/21/11 Jacob Parker 13C Map Add snow storage area to north west corner 11/21/11 Jacob Parker 26A Map Add snow storage area to west corner of pad. 11/21/11 Jacob Parker 28C Map Add snow storage are on SW corner, remove same outside berm on North 11/21/11 Jacob Parker 29C Map Add sediment pond in northwest corner, add new snow storage area on SW corner of pad 11/21/11 Tim Coakley 5C Map Remove cuttings pit and cement wash up area 11/8/11 Tim Coakley 12A Map Remove reserve pit from map 11/8/11 Tim Coakley 19C Map Remove reserve pit from map 11/8/11 Tim Coakley 20C Map Remove reserve pit and cement washout from map 11/8/11 Tim Coakley 21A Map Remove reserve pit and concrete washout from map 11/8/11 Tim Coakley 28C Map Remove cuttings pit and add new berm along west edge of pad 11/8/11 Tim Coakley 31A Map Remove reserve pit from map 11/8/11 Tim Coakley 31C Map Remove reserve pit from map 11/8/11 Cody Lofland 33C Map Add sed traps on SW and east sides, remove reserve pit 8/26/11 Cody Lofland 33C Map Add outlet protection to sed traps 8/30/11 8/30/11 Continued on following page... Modifications to the Stormwater Management Plan (cont...) Name of person who made changes Section and Page # Change(s) made Date Cody Lofland 33C Map Removed silt fence 8/26/11 Tim Coakley 33C Map Add concrete washout to SE corner of pad, inside berm. 9/25/11 Tim Coakley 33C Map Remove concrete washout from map 11/30/11 Tim Coakley 33C Rd Map Add Culvert at sed trap location on map 11/30/11 Tim Coakley 34D Map Remove reserve pit, remove silt fence on east side, remove straw bales on east side, replace bales and fence with berm 10/5/11 Tim Coakley 35D Map Remove reserve pit 11/8/11 Tim Coakley 35D Map Straw bales removed from SE corner of disturbance 10/5/11 Tim Coakley 1C Map Remove helipad, snow storage outside berm on north, and reserve pit 8/31/11 Tim Coakley 1C Map Site was reseeded and mulched 11/1/11 Tim Coakley 20C Map Site seeded and mulched 10/31/11 Tim Coakley 20C Map Add new methanol tank and containment 10/31/11 Tim Coakley 31C Map Site seeded and mulched 11/1/11 Tim Coakley 29C Map Site seeded and mulched 11/1/11 Tim Coakley 33C Map Site seeded and mulched 11/1/11 Tim Coakley 19C Map Site seeded and mulched 11/1/11 Tim Coakley 19C Map Add new methanol tank and containment 11/1/11 Tim Coakley 31A Map Site seeded and mulched 11/1/11 Tim Coakley 31A Map Add sed basin and pipe slope drain to map 11/1/11 Tim Coakley 32C Map Move Snow storage area from northwest to south west, remove snow storage area outside north berm 11/1/11 Tim Coakley 32C Map Site seeded and mulched 11/1/11 Tim Coakley 28C Map Site re-contoured 9/15/11 Tim Coakley 28C Map Added wells to map, added new methanol injection tank and containment 11/1/11 Tim Coakley 21A Map Added new methanol injection tank and containment 11/1/11 Continued on following page... Modifications to the Stormwater Management Plan (cont...) Scott Distel Entire document Updated "Tracking Table" and signature page; changed Appendix E to "Inactivation Forms" and added forms; and changed Appendix F to "Obsolete." 2/22/12 Scott Distel Entire document Proofread/revised. Added "Employee Training" ¶. Added Subsection "i" to Section 1.0. Updated Table of Contents and Appendix D. 3/5/12 Scott Distel Appendix A Added Permit Renewal Reapplication 3/19/12 Table of Contents Page Introduction 1 1. Site Description 2 a) Nature of Construction Activity 3 b) Proposed Sequence for Major Activities 3 c) Estimated Total Area of Site and Expected Disturbance 4 d) Soils and Existing Potential for Soil Erosion 4 e) Existing Vegetation and Percent Ground Cover 5 f) Potential Pollution Sources 5 g) Non-Stormwater Discharges 6 h) Receiving Waters 6 i) General Hydrology 6 2. Site Maps 8 3. Stormwater Management Controls 9 a) Stormwater Management Plan Administrator 9 b) Identification of Potential Pollutant Sources 9 c) Best Management Practices for Stormwater Pollution Prevention 11 1) Structural Practices for Erosion and Sediment Control 12 2) Non -Structural Practice for Erosion and Sediment Control 12 3) Phased BMP Implementation 12 4) Materials Handling and Spill Prevention 15 d) Groundwater and Stormwater Dewatering 18 4. Final Stabilization and Long -Term Stormwater Management 19 a) Final Stabilization Practices 19 b) Seed Mix Application and Soil Stabilization 19 c) Achieving Final Stabilization 19 5. Inspection and Maintenance 20 a) Minimum Inspection Schedule 21 b) Inspection Requirements 22 c) Required Actions Following Site Inspections 23 d) BMP Maintenance 23 e) Replacement of Failed BMPs 23 f) SWMP Review and Changes 24 List of Tables Table 1. Specific Areas of the Project 2 Table 2. BMPs Available for Each Project Phase 14 List of Appendices APPENDIX A: CDPS GENERAL PERMIT APPENDIX B: BMP DETAILS APPENDIX C: SEED MIXTURE APPENDIX D: TRAINING RECORDS APPENDIX E: INACTIVATION FORMS APPENDIX F: OBSOLETE INTRODUCTION This Stormwater Management Plan (SWMP) complies with the Colorado Department of Public Health and Environment (CDPHE) General Permit No. COR -030000. The permit was issued on July 1, 2007, expires on June 30, 2012 (Appendix A), and provides authorization to discharge stormwater associated with new and large construction activities. An operator who intends to seek coverage under this permit must prepare a SWMP for the construction activity. The primary objective of this plan is to identify Best Management Practices (BMPs) that, when implemented, will meet the terms and conditions of the permit by minimizing or reducing the pollution of waters of the State of Colorado. Marathon Oil Company (Marathon) has obtained coverage under the General Permit, and the corresponding certification number is COR -03C052 (Appendix B). This SWMP has been prepared for construction activities in accordance with the requirements of the Colorado Discharge Permitting System (CDPS) permit. Construction activities addressed in this plan are associated with the development and production of natural gas resources for Marathon Oil Company (Marathon) in the Piceance Area. This plan was prepared in accordance with good engineering, hydrologic, and pollution control practices. It is intended to be a dynamic document that will be updated as needed to address planned development, new disturbances, and other changes necessary to manage stormwater and protect surface water quality. 1 1. SITE DESCRIPTION The Piceance Area is located in Garfield County, northwest of the town of Parachute, Colorado (see Vicinity Map in Section 2.0). This SWMP encompasses multiple facilities located in parts of Townships 5, 6, and 7 South, and Ranges 96 and 97 West. Table 1 lists the specific quarter sections and quarter -quarter sections that contain the construction site boundaries. The total area of the limits of disturbance is approximately 600 acres. Table 1. Specific Areas of the Project Township andSection Range Quarter Section Quarter Sections Township and Range Section Quarter Section Quarter Sections T5S, R96W 19 NE SE, SW T6S, R96W 5 NW NE, NW, SE, SW 19 NW SE, SW 6 NE NE 19 SE NE, NW, SE, SW 6 NW NW 19 SW NE, NW 18 NE SW 20 SW NW 18 NW SE 20 SW SW 18 SW NE, NW 29 NE NW T6S, R97W 1 NE NE, NW 29 NW NW, SE, 1 NW NE 29 SE SE, SW 1 SE NE 29 SW NE, NW, SE 1 SW NW, SW 30 NE SE 2 NE SE, SW 30 SE NE, SE 2 SE SE 30 SW NE, NW 2 SW SE 31 NE NSW 11 NE NE, NW 31 NW SE, SW 11 NW NE 31 SW NE, NW 11 SE NE, NW, SE 32 NE SW 11 SW NE 32 SE NW, SE, 12 NE NW, SW 32 SW NE, SE 12 NW NE 33 NW SW 13 SW SE, SW 33 SE SE, SW 21 NE SE 33 SW NW, SE, 23 NE NW 34 SE SE 23 NW NW 35 SE SE, SW 23 SW SE 2 Township andSection Range Quarter Section Quarter Sections Township and Range Section Quarter Section Quarter Sections 36 SE NW 24 NW NE 26 NE NE, NW 28 NW SE 28 SW NE, NW a) Nature of Construction Activity When active, the Piceance Area Drilling Program will be located on privately owned and zoned Resource Lands northwest of Parachute, Colorado. The current drilling and development plan includes pad construction, access road construction and improvement, pit construction, installation of associated facilities, well drilling, well completion, well testing, pipeline construction, and rock crushing. The area of disturbance, including the natural gas well pads, access roads, and gathering pipeline system, will be greater than five acres. Well pads are constructed using conventional cut -and -fill earthmoving techniques. Typically, the working pad surface will have dimensions of approximately 200 feet by 400 feet. Each pad may have a reserve pit that is approximately 60 feet by 250 feet. Specific pad dimensions vary depending on the planned drill rig, number of wells to be drilled on each pad, and site-specific conditions. Reserve pits will be used during activities to contain drilling fluids and cuttings. The reserve pits will be designed, constructed, and reclaimed according to Colorado Oil and Gas Conservation Commission (COGCC) requirements. In areas that are disturbed by well pad construction, topsoil will be stripped and stockpiled near the site. Soil materials will be managed so that erosion and sediment transport are minimized. Nearby drainages will be protected by implementing appropriate measures. The well pad will be graded to direct runoff from surrounding areas away from the well pad and reserve pit. If the well pad is not productive, the wells will be plugged according to COGCC rules and the pad area reclaimed to approximate pre -construction contours. Reclamation and final stabilization will be conducted as described in Section 4.0 of this plan. Currently, there are other actively producing wells and natural gas facilities within the Piceance Area, including pipelines, access roads, and well pads that have been constructed by other operators. New disturbances in the area may occur as additional access roads and well pads are constructed. b) Proposed Sequence for Major Activities Temporary or permanent on-site perimeter erosion and sediment control BMPs 3 will be installed, as appropriate, before, during, and after all grading activities, road expansion, and development. The construction areas will be cleared and grubbed, and stormwater inspections will begin once soil or vegetation has been disturbed. Topsoil and other materials will be salvaged and/or stockpiled as necessary, and then initial grading will begin. Diversion ditches or swales will be installed, and roadside ditches will be constructed where necessary to convey water along access roads. Check dams may be used in ditches with significant elevation drops. Additional BMPs may need to be installed and may include sediment ponds, detention ponds, drainage ditches, or swales. Excavated material will be stockpiled up -gradient of any trench, where feasible, to minimize the potential for stormwater erosion. All BMPs will be installed in a phased approach as outlined in Table 3 of Section 3.0 of this plan. Construction activities will progress as quickly as is practicable to minimize the amount of time areas of the site are disturbed. Inactive areas will be stabilized to reduce erosion potential, slow runoff velocity, and promote infiltration. Areas will be temporarily seeded where applicable. Following completion of project activities, including final revegetation, a designated representative will inspect areas that have been seeded to ensure that the revegetation has been successful. If revegetation is not successful, spot revegetation or other remedial actions will be implemented to ensure compliance with the permit. An Inactivation Notice will be filed for the project once all construction activities are complete and all disturbed areas have reached final stabilization and/or 70 percent of pre -disturbance vegetation conditions. c) Estimated Total Area of Site and Expected Disturbance The total area of the project site is approximately 9,000 acres. The total area of disturbance is estimated to be 600 acres. d) Soils and Existing Potential for Soil Erosion Runoff characteristics are based on site topography, soil type, and soil/vegetative cover. The elevation in the project area ranges from approximately 6,500 to 8,500 feet. The major soil type in the permitted area consists of the Parachute- Irigul complex, Parachute-Irigul-Rhone association, and Parachute -Rhone loams. The slopes range from 5 percent to steep rock outcroppings. For specific pad percent groundcover information, please refer to the individual site maps. The Parachute-Irigul complex, with 5 to 50 percent slopes, is located on mountainsides and foot slopes, as well as in swales, and the elevation ranges from 7,700 to 8,400 feet. The Parachute soil is moderately deep and well drained. The Irigul soil is shallow and well -drained. Permeability and water - holding capacity are moderate. Runoff is medium or rapid, and fluvial erosion is severe to very severe. The Irigul soil is shallow and well -drained. Permeability is 4 moderate and water -holding capacity is very low. The Parachute-Irigul-Rhone association, with 25 to 50 percent slopes, is located on the tops of mountains and ridges, as well as the crests and sides of hills, and the elevation ranges from 7,600 to 8,800 feet. The Parachute soil is moderately deep and well -drained. Permeability is moderate and water -holding capacity is low. Runoff is rapid and fluvial erosion is very severe. The Irigul soil is shallow and well -drained. Permeability is moderate and water -holding capacity is very low. Runoff is rapid and fluvial erosion is very severe. The Rhone soil is deep and well -drained. Permeability is moderate and water -holding capacity is moderate. Runoff is rapid and fluvial erosion is very severe. The Parachute -Rhone loams, with 5 to 30 percent slopes, are on ridge crests, mountain sides, upland slopes, and side slopes, and the elevation ranges from 7,600 to 8,600 feet. Permeability is moderate and water -holding capacity is moderate. Runoff is medium or rapid and fluvial erosion is moderate to very severe. The Irigul soils are shallow and well -drained. They formed in residuum derived dominantly from sandstone or hard shale. Typically, the surface layer is about 10 inches thick and is comprised of a very dark, grayish -brown loam. The subsequent layer is dark, grayish -brown channery loam that is about 29 inches thick. The subsoil is a brown, very channery loam that is about 16 inches thick. Rippable, fractured siltstone lies at a depth of approximately 55 inches. The Parachute soils are moderately deep and well -drained. Typically, the surface layer is grayish brown loam approximately 10 inches thick. The subsoil is brown very channery loam about 15 inches thick. Rippable, fractured siltstone lies at a depth of about 25 inches. e) Existing Vegetation and Percent Groundcover Within the Piceance Area, native vegetation includes aspen, douglas-fir, pinyon, juniper, Gamble oak, Utah serviceberry, greasewood, sagebrush, antelope bitterbrush, four -wing saltbush, shadscale, yucca, elk sedge, Indian ricegrass, junegrass, and several brome, wheatgrass, and other native grass and forb species. Vegetative cover within the Piceance Area ranges from approximately 70 to 90 percent. f) Potential Pollution Sources Potential pollution sources associated with construction activities include: Sediment resulting from erosion of soil stockpiles and other areas cleared of vegetation; Leakage of fuels and lubricants from equipment, and spills from refueling 5 or equipment failures during earthmoving activities; Trash and debris from clearing activities, construction materials, and workers; Construction material storage areas are potential sources of stormwater pollution if materials are improperly stored or are exposed to stormwater; Fugitive dust clouding due to heavy road use; Off-site vehicle tracking; and Temporary portable toilet services for construction workers. The most common source of pollution from the project locations is sediment, which can be carried away from the work sites with stormwater runoff and could impact the water quality of a receiving stream. Clearing, grading, and altering previously undisturbed land will increase the rate of soil erosion over pre - disturbance rates. Petroleum products can also be potential stormwater pollutants. These products are used in construction to power and/or lubricate equipment and include fuel, gear oil, hydraulic oil, brake fluid, and grease. Designated areas for storing petroleum products are detailed on the site maps. Debris from staging areas, residue from equipment cleaning and maintenance, and solid waste generated from land clearing operations and human activities (trees, brush, paper, trash, etc.) present other potential pollution sources within the construction sites. g) Non-Stormwater Discharges Non-stormwater discharges are not expected from project locations. h) Receiving Waters The project area is located in the Parachute Creek basin. From the project area, stormwater runoff flows north-northeast to West Fork of Parachute Creek, and then east until eventually discharging into the Colorado River. Stormwater runoff receiving waters include unnamed tributaries of Willow Creek, Bear Run, Little Creek, House Log Gulch, Dot Gulch, Sheep Kill Gulch, Corral Gulch, McKay Gulch, Red Gulch, Garden Gulch, West Fork, and Parachute Creek. The ultimate receiving water is the Colorado River. Within the project area, there are numerous ephemeral and intermittent drainages. i) General Hydrology The project area is located in the Colorado Headwaters Parachute -Roan Basin (USGS Hydrologic Unit Code 14010006), which is part of the Upper Colorado River drainage. 6 Regional precipitation varies from 12.7 inches per year in Rifle, Colorado, to 14.3 inches in Collbran, Colorado (Western Regional Climate Center). Surface water hydrology is shown on the site maps in Section 2.0. 7 2. SITE MAPS 8 3. STORMWATER MANAGEMENT CONTROLS a) Stormwater Management Plan Administrator Marathon's stormwater management involves several entities within the company, as well as outside contractors and consultants. This SWMP was originally prepared for Marathon Oil Company by Buys and Associates, Inc. (Littleton, CO), and has been updated by InterTech Environmental & Engineering, L.L.C. (Grand Junction, CO); however, the implementation and execution of the SWMP will be conducted by Marathon or their designee. The authorized officer(s) for this SWMP are listed below: Legally Responsible Person Eric Ward Operations Superintendent Marathon Oil Company Office: 970-244-5735 Local Contact Melissa Velasquez HES Professional Marathon Oil Company Office: 970-244-5743 Cell: 970-462-8096 Employee Training All project employees and contractors will be educated about the requirements of this SWMP prior to their first day on-site. This education will include training in erosion and sediment control, good housekeeping, proper maintenance, disposal and control of waste, equipment refueling, and inspection procedures. All construction employees will be trained in the correction of and understanding of these BMPs. Employee training programs will occur on a regular or as -needed basis. The dates and attendees of employee training will be recorded and kept with this plan. b) Identification of Potential Pollutant Sources Potential pollutant sources will be inspected on a regular basis and include the following: 1) All disturbed and stored soils There is a moderate potential for disturbed and stored soils to contribute pollutants to stormwater discharges; however, as part of the regular stormwater inspections, all disturbed and stored soils will be monitored to ensure sediment transport is not occurring. BMPs will be installed and maintained along these areas. 9 2) Vehicle tracking of sediments There is a low potential for vehicle tracking of sediments to contribute pollutants to stormwater discharges given that the roads in the area are unpaved. 3) Management of contaminated soils There is a low potential for contaminated soils to contribute pollutants to stormwater discharges. All contaminated soils will be disposed of in an appropriate facility, and soil sampling will be conducted to ensure contaminants are no longer on-site. 4) Loading and unloading operations There is a low potential for loading and unloading operations to contribute pollutants to stormwater discharges as BMPs will be installed before items necessary for well development, pipelines, and gas treatment are put in place. 5) Outdoor storage activities (building materials, fertilizers, chemicals, etc.) There is a low potential for outdoor storage activities to contribute pollutants to stormwater discharges. No fertilizers or building materials will be kept on- site, and chemicals used for drilling operations will either be stored inside of a weather-proof structure or will be kept off the ground and covered to ensure precipitation does not contact the materials. 6) Vehicle and equipment maintenance and refueling There is a low potential for vehicle and equipment maintenance and refueling to contribute pollutants to stormwater discharges. Limited vehicle and equipment maintenance and refueling will take place at the project facilities, and that that does occur on-site will be done in designated areas, off of vegetation, and away from any drainage areas. 7) Significant dust or particulate generating processes There is a moderate potential for dust or particulate generating processes to contribute pollutants to stormwater discharges due to the aridity of the project area. Especially during summer months, winds can pick-up dust and sediment from construction activities or moving vehicles and deposit it along waterways. 8) Routine maintenance activities involving fertilizers, pesticides, detergents, fuels, solvents, oils, etc. There is a moderate potential for routine maintenance activities to contribute pollutants to stormwater discharges due to the amount of vehicle activity during drilling and production operations. However, fertilizers, pesticides, and detergents will not be kept on-site and refueling that does occur on-site will be done in designated areas, off of vegetation, and away from any 10 drainage areas. 9) On-site waste management practices (waste piles, liquid wastes, dumpsters, etc.) There is a low potential for on-site waste management practices to contribute pollutants to stormwater discharges. Waste piles will be contained using BMPs to minimize sediment transport. A spill plan has been written for the project area to address liquid wastes and storage areas. Dumpsters may be retained on-site for worker trash and will be emptied as necessary. 10) Concrete truck/equipment washing, including the concrete truck chute and associates fixtures and equipment There is a very low potential for concrete truck/equipment washing to contribute pollutants to stormwater discharges because concrete equipment washing is not anticipated for this project. If concrete washing does occur, washout areas will be designated and concrete will be disposed of properly. 11) Dedicated asphalt and concrete batch plants There is no potential for dedicated asphalt and concrete batch plants to contribute pollutants to stormwater discharges as there are no asphalt or concrete batch plants associated with the project. 12) Non -industrial waste sources, such as worker trash and portable toilets There is a low potential for non -industrial waste sources to contribute pollutants to stormwater discharges. Dumpsters for worker trash will be kept on-site and portable toilets will be staked down and located in a safe area where accidental tipping will not occur. 13) Other areas or procedures where potential spills can occur Spills may occur from vehicles that are accessing each location during construction and daily activities. Observations for soil staining will be conducted during the routine inspections. A spill plan that covers each facility and addresses storage and spill procedures has been written for the project. c) Best Management Practices for Stormwater Pollution Prevention The selection of erosion and sediment control BMPs is contingent upon site specific conditions (e.g., nature of construction activities, vegetation, precipitation, and evaporation). The objective of erosion and sediment controls is to minimize the release of sediments. This can be accomplished through the use of structural and/or nonstructural controls. The types and locations of BMPs are shown on the site maps (Section 2.0), and BMP design and installation/construction details can be found in Appendix B. 11 1) Structural Practices for Erosion and Sediment Control There are a number of structural practices to be utilized at project locations, including fiber rolls, silt fence, straw bales, organic filter berms, temporary stockpile areas, slope drains, diversion ditches, v -ditches along access roads, check dams, riprap and/or outlet protection, water bars, ditch -outs along access roads, and sediment traps. 2) Non -Structural Practice for Erosion and Sediment Control Non-structural erosion and sediment control BMPs use techniques such as phased construction, minimizing disturbances to existing vegetation, reestablishing/replacing vegetation, mulching, using rolled erosion control products, surface roughening, land grading, terracing, spraying tackifier or soil binder, utilizing dust control techniques, and stabilizing streambanks. Common non-structural BMPs to be implemented at project locations include temporary and permanent revegetation, erosion control blankets or mats, mulching, preservation of in-place vegetation, and surface roughening. 3) Phased BMP Implementation BMPs will be implemented in three phases: (1) construction, (2) drilling and development, and (3) reclamation. Table 2 lists BMPs that may be used during each phase of the project. (1) Construction The construction phase will begin with the clearing and grubbing of all necessary areas for road and well pad development. Topsoil from these locations will be stockpiled and saved for reclamation activities. Well pads and associated access roads will be constructed utilizing standard cut -and -fill techniques. Reserve pits will be constructed on the cut side of the well pads during this phase. Each site will typically require several weeks to complete, and the construction phase will be considered finished once final grade at the site has been achieved. Structural sediment control BMPs will be installed along the edges of, and on contoured features within, the disturbed area to prevent sediment from leaving the construction site. These BMPs will be installed prior to and following any earthwork activities. Site berms encompassing the well pad surface will be constructed at the top of the fill slopes during construction activities to serve as run on control. Structural BMPs will be maintained during construction to the standards outlined in the BMP details provided herein in Appendix B. (2) Drilling and Development The drilling and development phase will begin when final grade has been 12 achieved for the well pads and associated access roads. Activities during this phase will include drilling, well completions operations, and installation of production facilities. Pipeline and pit work may also be completed during this phase, if required. Operations associated with this phase may continue for two to five or more years as additional wells may be added if higher than expected reserves are encountered. All ground disturbing activities will be conducted on the working surface of the well pads during this phase. All production wells will be drilled during this phase. This will include setting up all facilities required on-site to support a drilling rig, including any sanitary sewage systems. The drilling rig may be mobilized multiple times during this phase if more wells are desired at any particular pad location. Underground fracturing and well completions activities will be conducted on all wells. Production facilities, including separators, piping, and storage tanks, will be installed on the working surfaces of the pads. During the drilling and development phase, both erosion and sediment control BMPs will be installed. All structural BMPs used for sediment control during the construction phase will be maintained or replaced as needed. Well pads will typically have organic filter berms, silt fence, straw bales, and fiber rolls at the base of fill slopes. Site berms will be maintained above all fill slopes, especially during drilling and completions activities to provide run-on protection on the slopes and to contain any pollutants as outlined in Marathon SPCC plans. Depending on site conditions, a variety of erosion control practices may be used to stabilize areas of disturbed soil that are not necessary for drilling and development activities. Seed and mulch or erosion control blankets may be applied to topsoil stockpiles and cut -and -fill slopes. Seeding may be applied using hydro -seeding methods or by broadcast seeding. Slopes may also be tracked to provide soil roughening. If site conditions are such that seeding would not be effective, fill slopes will be riprapped. The riprap will be designed and sized adequately given slope conditions and shall be placed such that there are no void spaces and limited soil fines present. Site access roads will utilize culverts with inlet and outlet protection, v -ditches, berms, sediment traps, and other structural BMPs to contain sediment. Road surfaces will have to be graded periodically, and water bars will be added as needed depending on traffic volume and the frequency of storm and snowmelt events. (3) Reclamation Reclamation will begin once all activities involved with drilling, well completion, and production facility installation have been completed. Drilling pits will be reclaimed according to COGCC regulations before site 13 reclamation activities are undertaken. During the reclamation phase, reserve pits will be reclaimed and the size of the drilling site will be reduced leaving only the area required for production. This will involve pulling back fill slopes and recontouring disturbed soils to match preexisting conditions around the production surface. Recontoured areas will have stockpiled topsoil applied, followed by seeding and surface stabilization that will be designed based on site-specific conditions. A new berm will be constructed around the production surface to provide run-on protection and contain any pollutants that may result from production operations. The site will continue to be monitored on a monthly basis while the vegetation is becoming established to ensure that the proposed activities for final stabilization are adequate. After uniform vegetative cover has been established on all reclaimed areas that is at least 70 percent of that which was present prior to the disturbance, the site will be considered stabilized and inspections will no longer be conducted. Structural BMPs, if present, may be removed after these conditions have been met. Seeding is most effective when applied during certain times of the year. The middle of winter and the middle of summer are problematic times to seed in the Piceance Area. If applied in the winter, seed will lay dormant and then be in place to grow as soon as springs arrives, but it should not be applied when there is more than an inch of snow on the ground. If seed is applied in the middle of summer, extreme heat and limited moisture will hinder seed germination and establishment. Therefore, the recommended times for seeding the area are in the spring (after snowmelt--generally mid-March to mid-June) and in the fall (generally late August until the first heavy snow). Recommended seed mixtures are included herein in Appendix C. Table 2. BMPs Available for Each Project Phase Construction Phase Interim Phase Reclamation Phase Dust Control Dust Control Dust Control Organic Filter Berm Organic Filter Berm Organic Filter Berm Land Grading Land Grading Land Grading Fiber Roll and Straw Bale Fiber Roll and Straw Bale Fiber Roll and Straw Bale Riprap Riprap Riprap Sediment Trap Sediment Trap Sediment Trap Silt Fence Silt Fence Silt Fence Surface Roughening Surface Roughening Surface Roughening Terracing Terracing Terracing Water Bar Water Bar Water Bar Diversion Ditch Diversion Ditch Diversion Ditch Ditch Out Ditch Out Check Dams Check Dams Culverts/Outlet Protection Culverts/Outlet Protection 14 4) Materials Handling and Spill Prevention Spills at the construction site can be largely prevented through proper training and the conscientious efforts of construction personnel during the performance of routine activities. Efforts should be made to refuel equipment away from drainages and waterways, and if possible, should always occur at a designated equipment refueling/staging area. If a release of a hazardous substance does occur during construction activities, construction personnel will take appropriate action to minimize the impact of the spill. This will be accomplished by using absorbent material that will be stored at the construction site. Absorbent material may consist of clay, sawdust, straw, kitty litter, booms, pads, and/or other suitable materials. A list of all potentially toxic or hazardous chemicals used during the project will be maintained and kept on-site. Warning labels must be attached to all potentially toxic or hazardous chemicals. Material Safety Data Sheets (MSDS) and other safety information will be on file and accessible during all periods in which the substances are used or stored. If the site has more the 1,320 gallons of petroleum-based fluid storage, construction site personnel must follow spill prevention and control practices as outlined in the Spill Prevention, Control, and Countermeasures (SPCC) plan. In addition to maintaining an inventory of potentially toxic, hazardous materials and associated safety information, the following materials management practices will be followed: Materials will be handled in accordance with Occupational Safety and Health Administration (OSHA) requirements and manufacturers' instructions; Chemicals regulated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) will be reported and handled in accordance with relevant regulations; Materials stored at the construction site will be covered or otherwise protected from the elements; The quantity of fuel and lubricants stored on the construction site will be limited to the amount that is reasonable to support the specific construction or maintenance activity; Bulk storage areas for materials not consumed daily will be enclosed, protected from the elements, and contained in a manner to prevent release to the environment; Petroleum products and fertilizers will be stored at separate facilities or 15 Revegetation Revegetation Slope Stabilization Slope Stabilization Erosion Control Blanket Erosion Control Blanket Mulching Mulching Slope Drain 4) Materials Handling and Spill Prevention Spills at the construction site can be largely prevented through proper training and the conscientious efforts of construction personnel during the performance of routine activities. Efforts should be made to refuel equipment away from drainages and waterways, and if possible, should always occur at a designated equipment refueling/staging area. If a release of a hazardous substance does occur during construction activities, construction personnel will take appropriate action to minimize the impact of the spill. This will be accomplished by using absorbent material that will be stored at the construction site. Absorbent material may consist of clay, sawdust, straw, kitty litter, booms, pads, and/or other suitable materials. A list of all potentially toxic or hazardous chemicals used during the project will be maintained and kept on-site. Warning labels must be attached to all potentially toxic or hazardous chemicals. Material Safety Data Sheets (MSDS) and other safety information will be on file and accessible during all periods in which the substances are used or stored. If the site has more the 1,320 gallons of petroleum-based fluid storage, construction site personnel must follow spill prevention and control practices as outlined in the Spill Prevention, Control, and Countermeasures (SPCC) plan. In addition to maintaining an inventory of potentially toxic, hazardous materials and associated safety information, the following materials management practices will be followed: Materials will be handled in accordance with Occupational Safety and Health Administration (OSHA) requirements and manufacturers' instructions; Chemicals regulated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) will be reported and handled in accordance with relevant regulations; Materials stored at the construction site will be covered or otherwise protected from the elements; The quantity of fuel and lubricants stored on the construction site will be limited to the amount that is reasonable to support the specific construction or maintenance activity; Bulk storage areas for materials not consumed daily will be enclosed, protected from the elements, and contained in a manner to prevent release to the environment; Petroleum products and fertilizers will be stored at separate facilities or 15 isolated by impermeable barriers; Hypochlorite and other chlorine compounds, if stored on-site, will be stored separately from other materials and kept dry; and Selected construction site debris will be stored in trash containers and removed from the job site on a regular basis prior to overflowing. Lubricant, hydraulic, and miscellaneous oils and solvents will be stored in 55 - gallon or smaller containers. Pollutants from petroleum products used during construction activities adhere easily to soil particles and other surfaces. In case of a spill or leak, soils contaminated with petroleum products will be contained and removed to a proper disposal site. Proposed soil erosion and sediment control practices will aid in retention of spills or leaks. Use of secondary containment and drip pans will reduce the likelihood of spills or leaks contacting the ground. Proposed maintenance and safe storage practices will reduce the chance of petroleum products contaminating on-site soils and drainages. Oily wastes, such as crankcase oil, cans, rags, and paper containing oils, will be placed in proper receptacles and disposed of or recycled. An additional source of petroleum contamination is leaks from equipment and vehicles. Routine daily inspections will be conducted to identify leaks and initiate corrective actions, if needed. The following guidelines for storing petroleum products will be used: All product containers will be clearly labeled; Drums will be kept off of the ground within secondary containment and stored under cover, if needed; Emergency spill response procedures will be available on-site. Persons trained in handling spills will be on-call at all times; Spill clean-up and containment materials (absorbent, shovels, etc.) will be easily accessible. Spills will be cleaned in a timely manner and reported as required in accordance with applicable regulations; and Contaminated materials will be properly stored on-site until they can be disposed of in accordance with applicable regulations. Storage areas and containers will be regularly monitored for leaks and repaired or replaced as necessary. Workers will be reminded about proper storage and handling of materials during weekly subcontractor or safety meetings. In the event of a release of fuel, lubricant, or coolant from equipment, efforts will be made to stop the release and the spilled fluids will be cleaned -up as soon as possible. All contaminated soils and spent/used clean-up materials will be containerized (drums or dumpsters) and stored on-site until appropriate disposal methods are identified. Please contact Melissa Velasquez at (970) 244-5743 (office) / (970) 462-8096 (cell) or Eric Ward at (970) 244-5735 (office) to report any spills over 5 gallons. The necessary 16 repairs will be made to the equipment to prevent a continued release of potential pollutants. A release of any chemical, petroleum product, or sewage that may enter waters of the State of Colorado must be immediately reported to CDPHE's Emergency Management Program Hotline at 1-877-518-5608. Written notification must follow within five (5) days. It should be noted that separate SPCC inspections will occur at Marathon sites that are undergoing drilling and completions operations. Any SPCC - related deficiencies that exist on-site will be identified and noted during the SPCC inspections and not during the routine 14 -day or post -storm event stormwater inspections. However, if at any time an SPCC -related problem is observed, a Marathon employee or an associate involved with the drilling operations will be notified immediately. The aforementioned process was developed in order to minimize confusion resulting from SPCC deficiencies being redundantly reported in multiple inspection formats. All SPCC deficiencies will continue to be reported on routine and post -storm event stormwater inspections for all Marathon sites that are not actively being drilled or undergoing completions activities. 5) Dedicated Concrete or Asphalt Batch Plants No concrete or asphalt batch plants are included as part of this project. 6) Vehicle Tracking Controls Vehicle tracking controls (VTCB) are used to reduce the potential for sediment to leave a construction area. Given that the majority of roads in the area are dirt or gravel, off-site tracking is not anticipated to be a problem. If tracking does become an issue in other areas, VTCs will be implemented. 7) Waste Management and Disposal Construction activities will generate other various wastes, possibly including the following: Trees and shrubs from clearing operations; Trash and debris from construction materials and workers; and Sanitary sewage. Each of these wastes will be managed so as to not contribute to stormwater pollution. Trees and shrubs will be piled along the toe of fill slopes to provide additional sediment control. Construction trash and debris will be collected in containers and hauled off-site for disposal in suitable landfills, and sanitary wastes will be managed appropriately. Sanitary sewage will be contained in portable toilet facilities and will be pumped or hauled off-site as necessary. 17 These facilities will be securely fastened to the ground to prevent the transportation of waste. d) Groundwater and Stormwater Dewatering If groundwater is encountered during construction activities, a groundwater dewatering permit will be acquired from CDPHE and monitoring will be conducted in accordance with the permit requirements. Stormwater dewatering activities are expected to occur when accumulation on working surfaces begins to hinder site operations or compromises worker safety. The stormwater will be visually inspected for any signs of oil or other chemicals affecting water quality (e.g., a sheen or discoloration) prior to dewatering operations. If evidence of oil or chemicals affecting water quality is found, dewatering activities will be suspended until the pollutants in question have been removed. Whenever possible, stormwater will be discharged into an existing BMP, such as a v -ditch, diversion ditch, or a sediment trap designed to handle concentrated flow. If it is not feasible to discharge to existing BMPs capable of managing the volume of the discharge, temporary BMPs will be installed below the discharge point to filter -out sediment suspended in the stormwater. Stormwater pumped off of working surfaces will never be discharged directly into a tributary, drainage, or any other water resource found within or around the construction site. 18 4. FINAL STABILIZATION AND LONG-TERM STORMWATER MANAGEMENT a) Final Stabilization Practices For new disturbances, structural BMPs will be installed prior to, during, and immediately following construction as practicable with consideration given to safety, access, and ground conditions at the time of construction. Final stabilization is defined as when all disturbed areas have been either built on, paved, stabilized as unpaved surfaces as needed for operation of the facility, well pad, or road after interim reclamation has occurred. A uniform vegetative cover must be established with a density of at least 70 percent of pre -disturbance levels or equivalent permanent, physical erosion reduction methods must be implemented. b) Seed Mix Application and Soil Stabilization Final stabilization practices for obtaining a vegetative cover will include: selecting a seed mix and application methods, providing soil preparation and amendments when necessary, implementing soil stabilization practices and utilizing appropriate sediment control BMPs as needed until final stabilization is achieved. The area not required for production operations will be regarded to reduce cut and fill slopes and will be seeded with the seed mixture in Appendix D. The seeding and stabilization practices may include drill or broadcast seeding, mulching and crimping, erosion control matting, hydro -seeding, installation of water bars, or slope roughening. The BMPs implemented may be modified as needed to ensure site reclamation and stabilization leading to 70 percent of pre - disturbance vegetative cover. c) Achieving Final Stabilization Re -vegetation will be accomplished by seeding using broadcast, drilling, or other appropriate method approved by the appropriate Federal, State or Local agency. On a site-specific basis, the Permittee no longer requires coverage under this permit if all soil disturbing activities are complete. At that time, the Permittee will submit an Inactivation Notice form that is signed in accordance with Part I.F.1 of the issued permit. An Inactivation Notice form includes: Permit certification number; The permittee's name, address, telephone number; Name, location, and county for the construction site for which the Inactivation Notice is being submitted; and Certification that the site has finally reached stabilization, and a description of the final stabilization methods. 19 5. INSPECTION AND MAINTENANCE To meet requirements of the General Permit, inspection and maintenance of erosion and sediment controls must occur throughout the project. Continued inspection and maintenance is required for specific structures after construction is completed. The inspection program will include the following: 1. A qualified person familiar with the SWMP and control measures will conduct the inspections. 2. Inspections will cover these areas of the construction site: Disturbed areas with and without stabilization; Material storage areas; BMPs; Surface water diversions; and Down -gradient areas. 3. A log of inspections will be retained in hard -copy and/or electronic format. 4. Sediment control BMPs will be inspected for evidence of deterioration, undercutting, and build-up of sediment. Sediment will be removed when it has built-up one-third to one-half the height of the sediment retention structure. 5. Following each inspection, the SWMP will be updated as necessary to include additional controls designed to correct identified problems. Revisions to the SWMP will be made within 72 hours after the changes to BMP installations and/or implementations occur at the site. 6. A signed inspection report summarizing the scope of the inspection, the name of the person conducting the inspection, the date of inspection, and observations pertaining to the implemented controls will be prepared. Reports for inspections occurring prior to January 1, 2011, will be stored in hardy -copy format. Reports for inspections occurring after January 1, 2011, will be maintained in electronic format in Stormpromax (http://stormpromax.com). Inspection reports will be retained for a minimum of 3 years from the date that the site has reached final stabilization. 7 Actions taken to modify any stormwater control measure will be recorded and maintained with the inspection reports as noted above. Once adequate corrective actions have been taken, or where a report does not identify any incidents requiring corrective action, the report shall be signed indicating that the site is in compliance. An up-to-date site diagram will be 20 available with the inspection reports. 8. As outlined in section 3.c.4, deficiencies found that are associated with the SPCC plan for sites where drilling or completions activities are occurring during the inspection cycle will be noted on the SPCC inspection reports, and not on the stormwater inspection paperwork. a) Minimum Inspection Schedule A thorough inspection will be made at least every 14 calendar days. Also, post - storm event inspections will be conducted within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion. Provided that the timing of such is appropriate, the post -storm inspections may be used to fulfill the 14 -day routine inspection requirement. A more frequent inspection schedule than the minimum inspections described may be necessary to ensure that BMPs continue to operate as needed to comply with the permit. The following conditional modifications to this minimum inspection schedule are allowed: Post -Storm Event Inspections at Temporarily Idle Sites — If no construction activities will occur following a storm event, post -storm event inspections will be conducted prior to recommencing construction activities but no later than 72 hours following the storm event. The occurrence of any such delayed inspection will be documented in the inspection record. Routine inspections will still be conducted at least every 14 calendar days. Inspections at Completed Sites/Areas — For sites or portions of sites that meet the following criteria, but where final stabilization has not yet been achieved due to a vegetative cover that has not become established, an inspection will be conducted at least once every month and post -storm event inspections are not required. This reduced inspection schedule is allowed only if: All construction activities that will result in surface ground disturbance are completed; All activities required for final stabilization, in accordance with the SWMP, have been completed, with the exception of the application of seed that has not occurred due to seasonal conditions or the necessity for additional seed application to augment previous efforts; The SWMP is amended to indicate those areas that will be inspected in accordance with the reduced schedule allowed for in this subsection. Winter Conditions Inspections Exclusion — Inspections will not be performed at sites where construction activities are temporarily halted, snow cover exists over the entire site for an extended period of time, and melting conditions that may lead to surface erosion do not exist. This exception is applicable only during the period of time that melting conditions do not exist, and applies to the routine 14 -day and monthly inspections, as well as post -storm event inspections. The 21 following information will be documented in the inspection record when this exclusion is used: the date when snow cover occurred, the date when construction ceased, and the date that melting conditions began. Inspections, as described above, are required at all other times. Completed Construction — After completion of the construction, but prior to returning the disturbed areas to approximate preconstruction conditions, the disturbed areas will be inspected at least once a month. Maintenance will include prompt repairs and adjustments to any erosion and sediment control structures that are deteriorating or found to be performing inadequately. Repairs will be made as soon as possible and in no case more than 7 days after identified in the inspection report. Marathon or designated contractor(s) will maintain on-site all materials necessary to make any reasonably expected repairs (e.g., silt fencing). b) Inspection Requirements Inspection Scope — The construction site perimeter, all disturbed areas, material and/or waste storage areas that are exposed to precipitation, discharge locations, and locations where vehicles access the site will be inspected for evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging into waters of the state. All erosion and sediment control practices identified in the SWMP will be evaluated to ensure that they are operating correctly. Inspection Reports/Records — A record will be kept of all inspections. Inspection reports will identify any incidents of non-compliance with the terms and conditions of the permit. Reports for inspections occurring prior to January 1, 2011, will be stored in hardy -copy format at Marathon's Grand Junction, CO, location. Reports for inspections occurring after January 1, 2011, will be maintained in electronic format in Stormpromax (http://stormpromax.com). An up-to-date site diagram will be available with the inspection reports, and reports will be retained for a minimum of 3 years from the date that the site has reached final stabilization. All reports will be provided to the administrator upon request. The inspection reports will include the following: Inspection date; Name(s) and title(s) of the person(s) performing the inspection; Location of discharges of sediment or other pollutants from the site; Location of BMPs that need to be maintained; Location of BMPs that failed to operate as designed or proved inadequate for a particular location; Location where additional BMPs are needed that were not in place at the time of the inspection; 22 Deviations from the minimum inspection schedule; Description of corrective action(s) for above items, date corrective action(s) was/were taken, and measures taken to prevent future violations, including requisite changes to the SWMP as necessary; and After the corrective action(s) has/have been taken, or where a report does not identify any incidents requiring corrective action, the report will include a signed statement indicating that the site is in compliance with the permit to the best of the signer's knowledge and belief. Collection and Submission of Self -Monitoring Information — Upon written notification from the Administrator, Marathon will collect and report stormwater effluent and/or ambient water quality data of the type and at the frequency specified by the Administrator. c) Required Actions Following Site Inspections Where site inspections note the need for BMP maintenance activities, BMPs will be maintained in accordance with the SWMP. Repair, replacement, or installation of new BMPs determined necessary during site inspections to address ineffective or inadequate BMPs will be conducted as described below. Guidelines for specific BMP installation and maintenance are included herein in Appendix B. d) BMP Maintenance All erosion and sediment control practices and other protective measures identified in the SWMP will be maintained in effective operating condition. Proper selection and installation of BMPs and installation of comprehensive inspection and maintenance procedures should be adequate to meet this condition. BMPs that are not adequately maintained in accordance with good engineering, hydrologic, and pollution control practices are considered no longer operating effectively and will be addressed. A specific timeline for implementing maintenance procedures is not included in the permit because BMP maintenance is intended to be proactive, not responsive. Observations resulting in BMP maintenance activities can be made during a site inspection or during general observations of site conditions. e) Replacement of Failed BMPs Comprehensive site assessments will be conducted as part of the inspection and maintenance procedures in order to assess the adequacy of the BMPs at the site and to determine if any changes to the BMPs are needed to ensure that they continue to perform effectively. As deemed necessary by site assessments, new and/or replacement BMPs will be installed on a continual basis. BMPs that fail, thereby resulting in non-compliance with the permit, must be addressed as soon as possible --immediately in most cases --in order to minimize the discharge of 23 pollutants. When new BMPs are installed or replaced with different BMPs, the SWMP must be updated. f) SWMP Review and Changes The SWMP will be updated each time there is a change in design, construction, operation, or maintenance that requires the implementation of new or revised BMPs. The SWMP will also be updated if the plan proves to be ineffective at achieving the general objectives of controlling pollutants in stormwater discharges during construction, drilling and development, and/or reclamation phases. 24 APPENDIX A: CDPS GENERAL PERMIT A-1 Page 2 of 22 Permit No. COR -030000 CDPS GENERAL PERMIT STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY AUTHORIZATION TO DISCHARGE UNDER THE COLORADO DISCHARGE PERMIT SYSTEM In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et seq., CRS, 1973 as amended) and the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.; the "Act"), this permit authorizes the discharge of stormwater associated with construction activities (and specific allowable non-stormwater discharges in accordance with Part I.D.3 of the permit) certified under this permit, from those locations specified throughout the State of Colorado to specified waters of the State. Such discharges shall be in accordance with the conditions of this permit. This permit specifically authorizes the facility listed on the certification page (page 1) of this permit to discharge, as of this date, in accordance with permit requirements and conditions set forth in Parts I and II hereof. All discharges authorized herein shall be consistent with the terms and conditions of this permit. This permit and the authorization to discharge shall expire at midnight, June 30, 2012. Issued and Signed this 31st day of May, 2007 COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT Janet S. Kieler Permits Section Manager Water Quality Control Division SIGNED AND ISSUED MAY 31, 2007 EFFECTIVE JULY 1, 2007 A-2 TABLE OF CONTENTS PART I A. COVERAGE UNDER THIS PERMIT A-5 1. Authority to Discharge A-5 a) Applicable Sections A-5 b) Oil and Gas Construction A-5 2. Definitions A-5 3. Permit Coverage Without Application — Qualifying Local Programs A-6 a) Applicable Sections A-6 b) Local Agency Authority A-6 c) Permit Coverage Termination A-6 d) Compliance with Qualifying Local Program A-6 e) Full Permit Applicability A-6 4. Application, Due Dates A-6 a) Application Due Dates A-6 b) Summary of Application A-7 5. Permit Certification Procedures A-7 a) Request for Additional Information A-7 b) Automatic Coverage A-7 c) Individual Permit Required A-7 d) General vs. Individual Permit Coverage A-7 e) Local Agency Authority A-7 6. Inactivation Notice A-7 7. Transfer of Permit A-8 8. Reassignment of Permit A-8 9. Sale of Residence to Homeowners A-8 10. Permit Expiration Date A-9 11. Individual Permit Criteria A-9 B. STORMWATER MANAGEMENT PLAN — GENERAL REQUIREMENTS A-9 C. STORMWATER MANAGEMENT PLAN — CONTENTS A-10 1. Site Description A-10 2. Site Map A-11 3. Stormwater Management Controls A-11 a) SWMP Administrator A-11 b) Identification of Potential Pollutant Sources A-11 c) Best Management Practices (BMPs) for Stormwater Pollution Prevention A-11 4. Final Stabilization and Long-term Stormwater Management A-13 5. Inspection and Maintenance A-13 D. TERMS AND CONDITIONS A-13 1. General Limitations A-13 2. BMP Implementation and Design Standards A-14 3. Prohibition of Non-Stormwater Discharges A-14 4. Releases in Excess of Reportable Quantities A-15 5. SWMP Requirements A-15 a) SWMP Preparation and Implementation A-15 b) SWMP Retention Requirements A-15 c) SWMP Review/Changes A-15 d) Responsive SWMP Changes A-15 A-3 6. Inspections A-16 a) Minimum Inspection Schedule A-16 b) Inspection Requirements A-17 c) Required Actions Following Site Inspections A-17 7. BMP Maintenance A-17 8. Replacement and Failed BMPs A-17 9. Reporting A-18 10. SWMP Availability A-18 11. Total Maximum Daily Load (TMDL) A-18 E. ADDITIONAL DEFINITIONS A-19 F. GENERAL REQUIREMENTS A-20 1. Signatory Requirements A-20 2. Retention of Records A-20 3. Monitoring A-21 PART II A. MANAGEMENT REQUIREMENTS A-22 1. Amending a Permit Certification A-22 2. Special Notifications — Definitions A-22 3. Noncompliance Notification A-22 4. Submission of Incorrect or Incomplete Information A-23 5. Bypass A-23 6. Upsets A-23 7. Removed Substances A-24 8. Minimization of Adverse Impact A-24 9. Reduction, Loss, or Failure of Stormwater Controls A-24 10. Proper Operation and Maintenance A-24 B. RESPONSIBILITIES A-24 1. Inspections and Right to Entry A-24 2. Duty to Provide Information A-25 3. Transfer of Ownership or Control A-25 4. Modification, Suspension, or Revocation of Permit By Division A-25 5. Permit Violations A-26 6. Legal Responsibilities A-26 7. Severability A-26 8. Renewal Application A-26 9. Confidentiality A-27 10. Fees A-27 11. Requiring an Individual CDPS Permit A-27 A-4 PART I A. COVERAGE UNDER THIS PERMIT 1. Authority to Discharge Under this permit, facilities are granted authorization to discharge stormwater associated with construction activities into waters of the state of Colorado. This permit also authorizes the discharge of specific allowable non-stormwater discharges, in accordance with Part I.D.3 of the permit, which includes discharges to the ground. This includes stormwater discharges from areas that are dedicated to producing earthen materials, such as soils, sand and gravel, for use at a single construction site (i.e., borrow or fill areas). This permit also authorizes stormwater discharges from dedicated asphalt batch plants and dedicated concrete batch plants. (Coverage under the construction site permit is not required for batch plants if they have alternate CDPS permit coverage.) This permit does not authorize the discharge of mine water or process water from such areas. a) Applicable Sections: In accordance with Part I.A.3 of this permit, some parts of this permit do not apply to sites covered under a Qualifying Local Program, as defined in I.A.2.d. For sites not covered by a Qualifying Local Program, all parts of the permit apply except Part I.A.3. The permittee will be responsible for determining and then complying with the applicable sections. b) Oil and Gas Construction: Stormwater discharges associated with construction activities directly related to oil and gas exploration, production, processing, and treatment operations or transmission facilities are regulated under the Colorado Discharge Permit System Regulations (5CCR 1002-61), and require coverage under this permit in accordance with that regulation. However, references in this permit to specific authority under the Federal Clean Water Act (CWA) do not apply to stormwater discharges associated with these oil and gas related construction activities, to the extent that the references are limited by the federal Energy Policy Act of 2005. 2. Definitions a) Stormwater: Stormwater is precipitation -induced surface runoff. b) Construction activity: Construction activity refers to ground surface disturbing activities, which include, but are not limited to, clearing, grading, excavation, demolition, installation of new or improved haul roads and access roads, staging areas, stockpiling of fill materials, and borrow areas. Construction does not include routine maintenance to maintain original line and grade, hydraulic capacity, or original purpose of the facility. c) Small construction activity: Stormwater discharge associated with small construction activity means the discharge of stormwater from construction activities that result in land disturbance of equal to or greater than one acre and less than five acres. Small construction activity also includes the disturbance of less than one acre of total land area that is part of a larger common plan of development or sale, if the larger common plan will ultimately disturb equal to or greater than one and less than five acres. d) Qualifying Local Program: This permit includes conditions that incorporate qualifying local erosion and sediment control program (Qualifying Local Program) requirements by reference. A Qualifying Local Program is a municipal stormwater program for stormwater discharges associated with small construction activity that has been formally approved by the Division. A-5 Other Definitions: Definitions of additional terms can be found in Part I.E. of this permit. 3. Permit Coverage Without Application — for small construction activities under a Qualifying Local Program only If a small construction site is within the jurisdiction of a Qualifying Local Program, the operator of the construction activity is authorized to discharge stormwater associated with small construction activity under this general permit without the submittal of an application to the Division. a) Applicable Sections: For sites covered by a Qualifying Local Program, only Parts 1.A.1, 1.A.2, 1.A.3, I.D.1, I.D.2, I.D.3, I.D.4, I.D.7, I.D.8, I.D.11, I.E and Part II of this permit, with the exception of Parts II.A.1, II.B.3, II.B.8, and II.B 10, apply. b) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. c) Permit Coverage Termination: When a site under a Qualifying Local Program has been finally stabilized, coverage under this permit is automatically terminated. d) Compliance with Qualifying Local Program: A construction site operator that has authorization to discharge under this permit under Part I.A.3 shall comply with the requirements of the Qualifying Local Program with jurisdiction over the site. e) Full Permit Applicability: The Division may require any operator within the jurisdiction of a Qualifying Local Program covered under this permit to apply for and obtain coverage under the full requirements of this permit. The operator must be notified in writing that an application for full coverage is required. When a permit certification under this permit is issued to an operator that would otherwise be covered under Part I.A.3 of this permit, the full requirements of this permit replace the requirements as per Part I.A.3 of this permit, upon the effective date of the permit certification. A site brought under the full requirements of this permit must still comply with local stormwater management requirements, policies or guidelines as required by Part I.D.1.g of this permit. 4. Application, Due Dates a) Application Due Dates: At least ten calendar days prior to the commencement of construction activities, the applicant shall submit an application form as provided by the Division, with a certification that the Stormwater Management Plan (SWMP) is complete. One original completed discharge permit application shall be submitted, by mail or hand delivery, to: Colorado Department of Public Health and Environment Water Quality Control Division WQCD-Permits-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 A-6 b) Summary of Application: The application requires, at a minimum, the following: 1) The applicant's company name; address; telephone number; and email address (if available); whether the applicant is the owner, developer, or contractor; and local contact information; 2) Project name, address, county and location of the construction site, including the latitude and longitude to the nearest 15 seconds of the approximate center of the construction activity; 3) Legal description or map of the construction site; 4) Estimates of: the total area of the site, the area of the site that is expected to be disturbed, and the total area of the larger common plan of development or sale to undergo disturbance; 5) The nature of the construction activity; 6) The anticipated start date and final stabilization date for the project; 7) The name of the receiving water(s), or the municipal separate storm sewer system and the ultimate (i.e., named) receiving water(s); 8) Certification that the SWMP for the construction site is complete (see Part I.C. below); and 9) The signature of the applicant, signed in accordance with Part I.F.1 of this permit. 5. Permit Certification Procedures If this general permit is appropriate for the applicant's operation, then a certification will be developed and the applicant will be authorized to discharge stormwater under this general permit. a) Request for Additional Information: The Division shall have up to ten calendar days after receipt of the above information to request additional data and/or deny the authorization for any particular discharge. Upon receipt of additional information, the Division shall have an additional ten calendar days to issue or deny authorization for the particular discharge. (Notification of denial shall be by letter, in cases where coverage under an alternate general permit or an individual permit is required, instead of coverage under this permit.) b) Automatic Coverage: If the applicant does not receive a request for additional information or a notification of denial from the Division dated within ten calendar days of receipt of the application by the Division, authorization to discharge in accordance with the conditions of this permit shall be deemed granted. c) Individual Permit Required: If, after evaluation of the application (or additional information, such as the SWMP), it is found that this general permit is not appropriate for the operation, then the application will be processed as one for an individual permit. The applicant will be notified of the Division's decision to deny certification under this general permit. For an individual permit, additional information may be requested, and 180 days may be required to process the application and issue the permit. At the Division's discretion, temporary coverage under this general permit may be allowed until the individual permit goes into effect. d) General vs. Individual Permit Coverage: Any permittee authorized by this permit may request to be excluded from the coverage of this permit by applying for an individual CDPS permit. The permittee shall submit an individual application, with reasons supporting the request, to the Division at least 180 days prior to any discharge. e) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. 6. Inactivation Notice When a site has been finally stabilized in accordance with the SWMP, the permittee must submit an A-7 Inactivation Notice form that is signed in accordance with Part I.F. 1. of this permit. The Inactivation Notice form is available from the Division and includes: a) Permit certification number; b) The permittee's name, address, telephone number; c) Name, location, and county for the construction site for which the inactivation notice is being submitted; and d) Certification that the site has been finally stabilized, and a description of the final stabilization method(s). 7. Transfer of Permit When responsibility for stormwater discharges at a construction site changes from one entity to another, the permittee shall submit a completed Notice of Transfer and Acceptance of Terms form that is signed in accordance with Part I.F.1. of this permit. The Notice of Transfer form is available from the Division and includes: a) Permit certification number; b) Name, location, and county for the construction site for which the Notice of Transfer is being submitted; c) Identifying information for the new permittee; d) Identifying information for the current permittee; and e) Effective date of transfer. If the new responsible party will not complete the transfer form, the permit may be inactivated upon written request to the Division and completion of the Inactivation Notice if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the site. In this case, the new owner or operator would be required to obtain permit coverage separately. 8. Reassignment of Permit When a permittee no longer has control of a specific portion of a permitted site, and wishes to transfer coverage of that portion of the site to a second party, the permittee shall submit a completed Notice of Reassignment of Permit Coverage form that is signed in accordance with Part I.F.1. of this permit. The Notice of Reassignment of Permit Coverage form is available from the Division and includes: a) Current permit certification number; b) Identifying information and certification as required by Part I.A.4.b for the new permittee; c) Identifying information for the current permittee, revised site information and certification for reassignment; and d) Effective date of reassignment. If the new responsible party will not complete the reassignment form, the applicable portion of the permitted site may be removed from permit coverage upon written request to the Division if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the portion of the site. In this case, the new owner or operator would be required to obtain permit coverage separately. 9. Sale of Residence to Homeowners For residential construction only, when a residential lot has been conveyed to a homeowner and all criteria in paragraphs a through e, below, are met, coverage under this permit is no longer required and the conveyed lot may be removed from coverage under the permittee's certification. At such time, the permittee is no longer responsible for meeting the terms and conditions of this permit for the conveyed A-8 lot, including the requirement to transfer or reassign permit coverage. The permittee remains responsible for inactivation of the original certification. a) The lot has been sold to the homeowner(s) for private residential use; b) the lot is less than one acre of disturbed area; c) all construction activity conducted by the permittee on the lot is completed; d) a certificate of occupancy (or equivalent) has been awarded to the home owner; and e) the SWMP has been amended to indicate the lot is no longer covered by permit. Lots not meeting all of the above criteria require continued permit coverage. However, this permit coverage may be transferred (Part I.A.7, above) or reassigned (Part I.A.8, above) to a new owner or operator. 10. Permit Expiration Date Authorization to discharge under this general permit shall expire on June 30, 2012. The Division must evaluate and reissue this general permit at least once every five years and must recertify the permittee's authority to discharge under the general permit at such time. Therefore, a permittee desiring continued coverage under the general permit must reapply by March 31, 2012. The Division will initiate the renewal process; however, it is ultimately the permittee's responsibility to ensure that the renewal is submitted. The Division will determine if the permittee may continue to operate under the terms of the general permit. An individual permit may be required for any facility not reauthorized to discharge under the reissued general permit. 11. Individual Permit Criteria Various criteria can be used in evaluating whether or not an individual (or alternate general) permit is required instead of this general permit. This information may come from the application, SWMP, or additional information as requested by the Division, and includes, but is not limited to, the following: a) the quality of the receiving waters (i.e., the presence of downstream drinking water intakes or a high quality fishery, or for preservation of high quality water); b) the size of the construction site; c) evidence of noncompliance under a previous permit for the operation; d) the use of chemicals within the stormwater system; or e) discharges of pollutants of concern to waters for which there is an established Total Maximum Daily Load (TMDL). In addition, an individual permit may be required when the Division has shown or has reason to suspect that the stormwater discharge may contribute to a violation of a water quality standard. B. STORMWATER MANAGEMENT PLAN (SWMP) — GENERAL REQUIREMENTS 1. A SWMP shall be developed for each facility covered by this permit. The SWMP shall be prepared in accordance with good engineering, hydrologic and pollution control practices. (The SWMP need not be prepared by a registered engineer.) 2. The SWMP shall: a) Identify all potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges associated with construction activity from the facility; b) Describe the practices to be used to reduce the pollutants in stormwater discharges associated with construction activity at the facility; and ensure the practices are selected and described in accordance A-9 with good engineering practices, including the installation, implementation and maintenance requirements; and c) Be properly prepared, and updated in accordance with Part I.D.5.c, to ensure compliance with the terms and conditions of this permit. 3. Facilities must implement the provisions of the SWMP as written and updated, from commencement of construction activity until final stabilization is complete, as a condition of this permit. The Division reserves the right to review the SWMP, and to require the permittee to develop and implement additional measures to prevent and control pollution as needed. 4. The SWMP may reflect requirements for Spill Prevention Control and Countermeasure (SPCC) plans under section 311 of the CWA, or Best Management Practices (BMPs) Programs otherwise required by a separate CDPS permit, and may incorporate any part of such plans into the SWMP by reference, provided that the relevant sections of such plans are available as part of the SWMP consistent with Part I.D.5.b. 5. For any sites with permit coverage before June 30, 2007, the permittee's SMWP must meet the new SWMP requirements as summarized in Section II.I of the rationale. Any needed changes must be made by October 1, 2007. C. STORMWATER MANAGEMENT PLAN (SWMP) — CONTENTS The SWMP shall include the following items, at a minimum. 1. Site Description. The SWMP shall clearly describe the construction activity, to include: a) The nature of the construction activity at the site. b) The proposed sequence for major activities. c) Estimates of the total area of the site, and the area and location expected to be disturbed by clearing, excavation, grading, or other construction activities. d) A summary of any existing data used in the development of the site construction plans or SWMP that describe the soil or existing potential for soil erosion. e) A description of the existing vegetation at the site and an estimate of the percent vegetative ground cover. f) The location and description of all potential pollution sources, including ground surface disturbing activities (see Part I.A.2.b), vehicle fueling, storage of fertilizers or chemicals, etc. g) The location and description of any anticipated allowable sources of non-stormwater discharge at the site, e.g., uncontaminated springs, landscape irrigation return flow, construction dewatering, and concrete washout. h) The name of the receiving water(s) and the size, type and location of any outfall(s). If the stormwater discharge is to a municipal separate storm sewer system, the name of that system, the location of the storm sewer discharge, and the ultimate receiving water(s). 2. Site Map. The SWMP shall include a legible site map(s), showing the entire site, identifying: a) construction site boundaries; b) all areas of ground surface disturbance; c) areas of cut and fill; d) areas used for storage of building materials, equipment, soil, or waste; e) locations of dedicated asphalt or concrete batch plants; f) locations of all structural BMPs; g) locations of non-structural BMPs as applicable; and h) locations of springs, streams, wetlands and other surface waters. A-10 3. Stormwater Management Controls. The SWMP must include a description of all stormwater management controls that will be implemented as part of the construction activity to control pollutants in stormwater discharges. The appropriateness and priorities of stormwater management controls in the SWMP shall reflect the potential pollutant sources identified at the facility. The description of stormwater management controls shall address the following components, at a minimum: a) SWMP Administrator - The SWMP shall identify a specific individual(s), position or title who is responsible for developing, implementing, maintaining, and revising the SWMP. The activities and responsibilities of the administrator shall address all aspects of the facility's SWMP. b) Identification of Potential Pollutant Sources -All potential pollutant sources, including materials and activities, at a site must be evaluated for the potential to contribute pollutants to stormwater discharges. The SWMP shall identify and describe those sources determined to have the potential to contribute pollutants to stormwater discharges, and the sources must be controlled through BMP selection and implementation, as required in paragraph (c), below. At a minimum, each of the following sources and activities shall be evaluated for the potential to contribute pollutants to stormwater discharges, and identified in the SWMP if found to have such potential: 1) all disturbed and stored soils; 2) vehicle tracking of sediments; 3) management of contaminated soils; 4) loading and unloading operations; 5) outdoor storage activities (building materials, fertilizers, chemicals, etc.); 6) vehicle and equipment maintenance and fueling; 7) significant dust or particulate generating processes; 8) routine maintenance activities involving fertilizers, pesticides, detergents, fuels, solvents, oils, etc.; 9) on-site waste management practices (waste piles, liquid wastes, dumpsters, etc.); 10) concrete truck/equipment washing, including the concrete truck chute and associated fixtures and equipment; 11) dedicated asphalt and concrete batch plants; 12) non -industrial waste sources such as worker trash and portable toilets; and 13) other areas or procedures where potential spills can occur. c) Best Management Practices (BMPs) for Stormwater Pollution Prevention - The SWMP shall identify and describe appropriate BMPs, including, but not limited to, those required by paragraphs 1 through 8 below, that will be implemented at the facility to reduce the potential of the sources identified in Part I.C.3.b to contribute pollutants to stormwater discharges. The SWMP shall clearly describe the installation and implementation specifications for each BMP identified in the SWMP to ensure proper implementation, operation and maintenance of the BMP. 1) Structural Practices for Erosion and Sediment Control. The SWMP shall clearly describe and locate all structural practices implemented at the site to minimize erosion and sediment transport. Practices may include, but are not limited to: straw bales, wattles/sediment control logs, silt fences, earth dikes, drainage swales, sediment traps, subsurface drains, pipe slope drains, inlet protection, outlet protection, gabions, and temporary or permanent sediment basins. A-11 2) Non -Structural Practices for Erosion and Sediment Control. The SWMP shall clearly describe and locate, as applicable, all non-structural practices implemented at the site to minimize erosion and sediment transport. Description must include interim and permanent stabilization practices, and site-specific scheduling for implementation of the practices. The SWMP should include practices to ensure that existing vegetation is preserved where possible. Non-structural practices may include, but are not limited to: temporary vegetation, permanent vegetation, mulching, geotextiles, sod stabilization, slope roughening, vegetative buffer strips, protection of trees, and preservation of mature vegetation. 3) Phased BMP Implementation. The SWMP shall clearly describe the relationship between the phases of construction, and the implementation and maintenance of both structural and non- structural stormwater management controls. The SWMP must identify the stormwater management controls to be implemented during the project phases, which can include, but are not limited to, clearing and grubbing; road construction; utility and infrastructure installation; vertical construction; final grading; and final stabilization. 4) Materials Handling and Spill Prevention. The SWMP shall clearly describe and locate all practices implemented at the site to minimize impacts from procedures or significant materials (see definitions at Part I.E.) that could contribute pollutants to runoff. Such procedures or significant materials could include: exposed storage of building materials; paints and solvents; fertilizers or chemicals; waste material; and equipment maintenance or fueling procedures. Areas or procedures where potential spills can occur must have spill prevention and response procedures identified in the SWMP. 5) Dedicated Concrete or Asphalt Batch Plants. The SWMP shall clearly describe and locate all practices implemented at the site to control stormwater pollution from dedicated concrete batch plants or dedicated asphalt batch plants covered by this certification. 6) Vehicle Tracking Control. The SWMP shall clearly describe and locate all practices implemented at the site to control potential sediment discharges from vehicle tracking. Practices must be implemented for all areas of potential vehicle tracking, and can include• minimizing site access; street sweeping or scraping; tracking pads; graveled parking areas; requiring that vehicles stay on paved areas on-site; wash racks; contractor education; and/or sediment control BMPs, etc. 7) Waste Management and Disposal, Including Concrete Washout. i) The SWMP shall clearly describe and locate the practices implemented at the site to control stormwater pollution from all construction site wastes (liquid and solid), including concrete washout activities. ii) The practices used for concrete washout must ensure that these activities do not result in the contribution of pollutants associated with the washing activity to stormwater runoff. iii) Part I.D.3.c of the permit authorizes the conditional discharge of concrete washout water to the ground. The SWMP shall clearly describe and locate the practices to be used that will ensure that no washout water from concrete washout activities is discharged from the site as surface runoff or to surface waters. 8) Groundwater and Stormwater Dewatering. The SWMP shall clearly describe and locate the practices implemented at the site to control stormwater pollution from the dewatering of groundwater or stormwater from excavations, wells, etc. A-12 ii) Part I.D.3.d of the permit authorizes the conditional discharge of construction dewatering to the ground. For any construction dewatering of groundwater not authorized under a separate CDPS discharge permit, the SWMP shall clearly describe and locate the practices to be used that will ensure that no groundwater from construction dewatering is discharged from the site as surface runoff or to surface waters. 4. Final Stabilization and Long-term Stormwater Management a) The SWMP shall clearly describe the practices used to achieve final stabilization of all disturbed areas at the site, and any planned practices to control pollutants in stormwater discharges that will occur after construction operations have been completed at the site. b) Final stabilization practices for obtaining a vegetative cover should include, as appropriate: seed mix selection and application methods; soil preparation and amendments; soil stabilization practices (e.g., crimped straw, hydro mulch or rolled erosion control products); and appropriate sediment control BMPs as needed until final stabilization is achieved; etc. c) Final stabilization is reached when all ground surface disturbing activities at the site have been completed, and uniform vegetative cover has been established with an individual plant density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. The Division may, after consultation with the permittee and upon good cause, amend the final stabilization criteria in this section for specific operations. 5. Inspection and Maintenance Part I.D.6 of the permit includes requirements for site inspections. Part I.D.7 of the permit includes requirements for BMP maintenance. The SWMP shall clearly describe the inspection and maintenance procedures implemented at the site to maintain all erosion and sediment control practices and other protective practices identified in the SWMP, in good and effective operating condition. D. TERMS AND CONDITIONS 1. General Limitations The following limitations shall apply to all discharges covered by this permit: a) Stormwater discharges from construction activities shall not cause, have the reasonable potential to cause, or measurably contribute to an exceedance of any water quality standard, including narrative standards for water quality. b) Concrete washout water shall not be discharged to state surface waters or to storm sewer systems. On-site permanent disposal of concrete washout waste is not authorized by this permit. Discharge to the ground of concrete washout waste that will subsequently be disposed of off-site is authorized by this permit. See Part I.D.3.c of the permit. c) Bulk storage structures for petroleum products and any other chemicals shall have secondary containment or equivalent adequate protection so as to contain all spills and prevent any spilled material from entering State waters. d) No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by the Division. In granting the use of such chemicals, special conditions and monitoring A-13 may be addressed by separate correspondence. e) The Division reserves the right to require sampling and testing, on a case-by-case basis, in the event that there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in removing pollutants in the effluent. Such monitoring may include Whole Effluent Toxicity testing. f) All site wastes must be properly managed to prevent potential pollution of State waters. This permit does not authorize on-site waste disposal. g) All dischargers must comply with the lawful requirements of federal agencies, municipalities, counties, drainage districts and other local agencies regarding any discharges of stormwater to storm drain systems or other water courses under their jurisdiction, including applicable requirements in municipal stormwater management programs developed to comply with CDPS permits. Dischargers must comply with local stormwater management requirements, policies or guidelines including erosion and sediment control. 2. BMP Implementation and Design Standards Facilities must select, install, implement, and maintain appropriate BMPs, following good engineering, hydrologic and pollution control practices. BMPs implemented at the site must be adequately designed to provide control for all potential pollutant sources associated with construction activity to prevent pollution or degradation of State waters. 3. Prohibition of Non-Stormwater Discharges a) Except as provided in paragraphs b, c, and d below, all discharges covered by this permit shall be composed entirely of stormwater associated with construction activity. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued for that discharge. b) Discharges from the following sources that are combined with stormwater discharges associated with construction activity may be authorized by this permit, provided that the non-stormwater component of the discharge is identified in the SWMP (see Part I.C.1.g of this permit): - emergency fire fighting activities - landscape irrigation return flow - uncontaminated springs c) Discharges to the ground of concrete washout water from washing of tools and concrete mixer chutes may be authorized by this permit, provided that: 1) the source is identified in the SWMP; 2) BMPs are included in the SWMP in accordance with Part I.C.3(c)(7) and to prevent pollution of groundwater in violation of Part I.D.1.a; and 3) these discharges do not leave the site as surface runoff or to surface waters d) Discharges to the ground of water from construction dewatering activities may be authorized by this permit, provided that: 1) the source is groundwater and/or groundwater combined with stormwater that does not contain pollutants in concentrations exceeding the State groundwater standards in Regulations 5 CCR 1002-41 and 42; 2) the source is identified in the SWMP; 3) BMPs are included in the SWMP, as required by Part 1.C.3(c)(8); and A-14 4) these discharges do not leave the site as surface runoff or to surface waters. Discharges to the ground from construction dewatering activities that do not meet the above criteria must be covered under a separate CDPS discharge permit. Contaminated groundwater requiring coverage under a separate CDPS discharge permit may include groundwater contaminated with pollutants from a landfill, mining activity, industrial pollutant plume, underground storage tank, or other source. 4. Releases in Excess of Reportable Quantities This permit does not relieve the permittee of the reporting requirements of 40 CFR 110, 40 CFR 117 or 40 CFR 302. Any discharge of hazardous material must be handled in accordance with the Division's Noncompliance Notification Requirements (see Part II.A.3 of the permit). 5. SWMP Requirements a) SWMP Preparation and Implementation: The SWMP shall be prepared prior to applying for coverage under the general permit, and certification of its completion submitted with the application. The SWMP shall be implemented prior to commencement of construction activities. The plan shall be updated as appropriate (see paragraph c, below), below). SWMP provisions shall be implemented until expiration or inactivation of permit coverage. b) SWMP Retention Requirements: A copy of the SWMP must be retained on site unless another location, specified by the permittee, is approved by the Division. c) SWMP Review/Changes: The permittee shall amend the SWMP: 1) when there is a change in design, construction, operation, or maintenance of the site, which would require the implementation of new or revised BMPs; or 2) if the SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with construction activity; or 3) when BMPs are no longer necessary and are removed. SWMP changes shall be made prior to changes in the site conditions, except as allowed for in paragraph d, below. SWMP revisions may include, but are not limited to: potential pollutant source identification; selection of appropriate BMPs for site conditions; BMP maintenance procedures; and interim and final stabilization practices. The SWMP changes may include a schedule for further BMP design and implementation, provided that, if any interim BMPs are needed to comply with the permit, they are also included in the SWMP and implemented during the interim period. d) Responsive SWMP Changes: SWMP changes addressing BMP installation and/or implementation are often required to be made in response to changing conditions, or when current BMPs are determined ineffective. The majority of SWMP revisions to address these changes can be made immediately with quick in -the -field revisions to the SWMP. In the less common scenario where more complex development of materials to modify the SWMP is necessary, SWMP revisions shall be made in accordance with the following requirements: 1) the SWMP shall be revised as soon as practicable, but in no case more than 72 hours after the change(s) in BMP installation and/or implementation occur at the site, and 2) a notation must be included in the SWMP prior to the site change(s) that includes the time and A-15 date of the change(s) in the field, an identification of the BMP(s) removed or added, and the location(s) of those BMP(s). 6. Inspections Site inspections must be conducted in accordance with the following requirements and minimum schedules. The required minimum inspection schedules do not reduce or eliminate the permittee's responsibility to implement and maintain BMPs in good and effective operational condition, and in accordance with the SWMP, which could require more frequent inspections. a) Minimum Inspection Schedule: The permittee shall, at a minimum, make a thorough inspection, in accordance with the requirements in I.D.6.b below, at least once every 14 calendar days. Also, post - storm event inspections must be conducted within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion. Provided the timing is appropriate, the post -storm inspections may be used to fulfill the 14 -day routine inspection requirement. A more frequent inspection schedule than the minimum inspections described may be necessary, to ensure that BMPs continue to operate as needed to comply with the permit. The following conditional modifications to this Minimum Inspection Schedule are allowed: 1) Post -Storm Event Inspections at Temporarily Idle Sites — If no construction activities will occur following a storm event, post -storm event inspections shall be conducted prior to re- commencing construction activities, but no later than 72 hours following the storm event. The occurrence of any such delayed inspection must be documented in the inspection record. Routine inspections still must be conducted at least every 14 calendar days. 2) Inspections at Completed Sites/Areas — For sites or portions of sites that meet the following criteria, but final stabilization has not been achieved due to a vegetative cover that has not become established, the permittee shall make a thorough inspection of their stormwater management system at least once every month, and post -storm event inspections are not required. This reduced inspection schedule is only allowed if: i) all construction activities that will result in surface ground disturbance are completed; ii) all activities required for final stabilization, in accordance with the SWMP, have been completed, with the exception of the application of seed that has not occurred due to seasonal conditions or the necessity for additional seed application to augment previous efforts; and iii) the SWMP has been amended to indicate those areas that will be inspected in accordance with the reduced schedule allowed for in this paragraph. 3) Winter Conditions Inspections Exclusion — Inspections are not required at sites where construction activities are temporarily halted, snow cover exists over the entire site for an extended period, and melting conditions posing a risk of surface erosion do not exist. This exception is applicable only during the period where melting conditions do not exist, and applies to the routine 14 -day and monthly inspections, as well as the post-stormevent inspections. The following information must be documented in the inspection record for use of this exclusion: dates when snow cover occurred, date when construction activities ceased, and date melting conditions began. Inspections, as described above, are required at all other times. When site conditions make the schedule required in this section impractical, the permittee may petition the Division to grant an alternate inspection schedule. A-16 b) Inspection Requirements 1) Inspection Scope - The construction site perimeter, all disturbed areas, material and/or waste storage areas that are exposed to precipitation, discharge locations, and locations where vehicles access the site shall be inspected for evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging to state waters. All erosion and sediment control practices identified in the SWMP shall be evaluated to ensure that they are maintained and operating correctly. 2) Inspection Report/Records - The permittee shall keep a record of inspections. Inspection reports must identify any incidents of non-compliance with the terms and conditions of this permit. Inspection records must be retained for three years from expiration or inactivation of permit coverage. At a minimum, the inspection report must include: i) The inspection date; ii) Name(s) and title(s) of personnel making the inspection; iii) Location(s) of discharges of sediment or other pollutants from the site; iv) Location(s) of BMPs that need to be maintained; v) Location(s) of BMPs that failed to operate as designed or proved inadequate for a particular location; vi) Location(s) where additional BMPs are needed that were not in place at the time of inspection; vii) Deviations from the minimum inspection schedule as provided in Part I.D.6.a above; vii) Description of corrective action for items iii, iv, v, and vi, above, dates corrective action(s) taken, and measures taken to prevent future violations, including requisite changes to the SWMP, as necessary; and viii) After adequate corrective action(s) has been taken, or where a report does not identify any incidents requiring corrective action, the report shall contain a signed statement indicating the site is in compliance with the permit to the best of the signer's knowledge and belief. c) Required Actions Following Site Inspections — Where site inspections note the need for BMP maintenance activities, BMPs must be maintained in accordance with the SWMP and Part I.D.7 of the permit. Repair, replacement, or installation of new BMPs determined necessary during site inspections to address ineffective or inadequate BMPs must be conducted in accordance with Part I.D.8 of the permit. SWMP updates required as a result of deficiencies in the SWMP noted during site inspections shall be made in accordance with Part I.D.5.c of the permit. 7. BMP Maintenance All erosion and sediment control practices and other protective measures identified in the SWMP must be maintained in effective operating condition. Proper selection and installation of BMPs and implementation of comprehensive Inspection and Maintenance procedures, in accordance with the SWMP, should be adequate to meet this condition. BMPs that are not adequately maintained in accordance with good engineering, hydrologic and pollution control practices, including removal of collected sediment outside the acceptable tolerances of the BMPs, are considered to be no longer operating effectively and must be addressed in accordance with Part I.D.8, below. A specific timeline for implementing maintenance procedures is not included in this permit because BMP maintenance is expected to be proactive, not responsive. Observations resulting in BMP maintenance activities can be made during a site inspection, or during general observations of site conditions. 8. Replacement and Failed BMPs Adequate site assessment must be performed as part of comprehensive Inspection and Maintenance A-17 procedures, to assess the adequacy of BMPs at the site, and the necessity of changes to those BMPs to ensure continued effective performance. Where site assessment results in the determination that new or replacement BMPs are necessary, the BMPs must be installed to ensure on-going implementation of BMPs as per Part I.D.2. Where BMPs have failed, resulting in noncompliance with Part I.D.2, they must be addressed as soon as possible, immediately in most cases, to minimize the discharge of pollutants. When new BMPs are installed or BMPs are replaced, the SWMP must be updated in accordance with Part I.D.5(c). 9. Reporting No scheduled reporting requirements are included in this permit; however, the Division reserves the right to request that a copy of the inspection reports be submitted. 10. SWMP Availability A copy of the SWMP shall be provided upon request to the Division, EPA, or any local agency in charge of approving sediment and erosion plans, grading plans or stormwater management plans, and within the time frame specified in the request. If the SWMP is required to be submitted to any of these entities, it must include a signed certification in accordance with Part I.F.1 of the permit, certifying that the SWMP is complete and meets all permit requirements. All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b) of the CWA and Section 61.5(4) of the Colorado Discharge Permit System Regulations. The permittee shall make plans available to members of the public upon request. However, the permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2. 11. Total Maximum Daily Load (TMDL) If a TMDL has been approved for any waterbody into which the permittee discharges, and stormwater discharges associated with construction activity have been assigned a pollutant -specific Wasteload Allocation (WLA) under the TMDL, the Division will either: a) Ensure that the WLA is being implemented properly through alternative local requirements, such as by a municipal stormwater permit; or b) Notify the permittee of the WLA, and amend the permittee's certification to add specific BMPs and/or other requirements, as appropriate. The permittee may be required to do the following: 1) Under the permittee's SWMP, implement specific management practices based on requirements of the WLA, and evaluate whether the requirements are being met through implementation of existing stormwater BMPs or if additional BMPs are necessary. Document the calculations or other evidence that show that the requirements are expected to be met; and 2) If the evaluation shows that additional or modified BMPs are necessary, describe the type and schedule for the BMP additions/revisions. Discharge monitoring may also be required. The permittee may maintain coverage under the general permit provided they comply with the applicable requirements outlined above. The Division reserves the right to require individual or alternate general permit coverage. A-18 E. ADDITIONAL DEFINITIONS For the purposes of this permit: 1. Best Management Practices (BMPs): schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of waters of the State. BMPs also include treatment requirements, operating procedures, pollution prevention, and practices to control site runoff, spillage or leaks, waste disposal, or drainage from material storage. 2. Dedicated asphalt plants and concrete plants: portable asphalt plants and concrete plants that are located on or adjacent to a construction site and that provide materials only to that specific construction site. 3. Final stabilization: when all ground surface disturbing activities at the site have been completed, and uniform vegetative cover has been established with an individual plant density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. For purposes of this permit, establishment of a vegetative cover capable of providing erosion control equivalent to pre-existing conditions at the site will be considered final stabilization. 4. Municipal separate storm sewer system: a conveyance or system of conveyances (including: roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains), owned or operated by a State, city, town, county, district, or other public body (created by state law), having jurisdiction over disposal of sewage, industrial waste, stormwater, or other wastes; designed or used for collecting or conveying stormwater. 5. Operator: the entity that has day-to-day supervision and control of activities occurring at the construction site. This can be the owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. It is anticipated that at different phases of a construction project, different types of parties may satisfy the definition of 'operator' and that the permit may be transferred as the roles change. 6. Outfall: a point source at the point where stormwater leaves the construction site and discharges to a receiving water or a stormwater collection system. 7. Part of a larger common plan of development or sale: a contiguous area where multiple separate and distinct construction activities may be taking place at different times on different schedules. 8. Point source: any discernible, confined and discrete conveyance from which pollutants are or may be discharged. Point source discharges of stormwater result from structures which increase the imperviousness of the ground which acts to collect runoff, with runoff being conveyed along the resulting drainage or grading pattern. 9. Pollutant: dredged spoil, dirt, slurry, solid waste, incinerator residue, sewage, sewage sludge, garbage, trash, chemical waste, biological nutrient, biological material, radioactive material, heat, wrecked or discarded equipment, rock, sand, or any industrial, municipal or agricultural waste. 10. Process water: any water which, during manufacturing or processing, comes into contact with or results from the production of any raw material, intermediate product, finished product, by product or waste product. This definition includes mine drainage. 11. Receiving Water: any classified stream segment (including tributaries) in the State of Colorado into which stormwater related to construction activities discharges. This definition includes all water courses, even if they are usually dry, such as borrow ditches, arroyos, and other unnamed waterways. A-19 12. Significant Materials include, but are not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic pellets; finished materials such as metallic products; raw materials used in food processing or production; hazardous substances designated under section 101(14) of CERCLA; any chemical the facility is required to report pursuant to section 313 of title III of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that have the potential to be released with stormwater discharge. 13. Stormwater: precipitation -induced surface runoff. F. GENERAL REQUIREMENTS 1. Signatory Requirements a) All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the following criteria: 1) In the case of corporations, by a principal executive officer of at least the level of vice-president or his or her duly authorized representative, if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates; 2) In the case of a partnership, by a general partner; 3) In the case of a sole proprietorship, by the proprietor; 4) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking elected official, or other duly authorized employee, if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates. b) Changes to authorization. If an authorization under paragraph a) of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph a) of this section must be submitted to the Division, prior to or together with any reports, information, or applications to be signed by an authorized representative. c) Certification. Any person signing a document under paragraph a) of this section shall make the following certification: "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." 2. Retention of Records a) The permittee shall retain copies of the SWMP and all reports required by this permit and records of all data used to complete the application to be covered by this permit, for three years after expiration or inactivation of permit coverage. b) The permittee shall retain a copy of the SWMP required by this permit at the construction site from the date of project initiation to the date of expiration or inactivation of permit coverage, unless another location, specified by the permittee, is approved by the Division. A-20 3. Monitoring The Division reserves the right to require sampling and testing, on a case-by-case basis (see Part I.D.1.e), for example to implement the provisions of a TMDL (see Part I.D.11 of the permit). Reporting procedures for any monitoring data collected will be included in the notification by the Division of monitoring requirements. If monitoring is required, the following definitions apply: a) The thirty (30) day average shall be determined by the arithmetic mean of all samples collected during a thirty (30) consecutive -day period. b) A grab sample, for monitoring requirements, is a single "dip and take" sample. A-21 PART II A. MANAGEMENT REQUIREMENTS 1. Amending a Permit Certification The permittee shall inform the Division (Permits Section) in writing of changes to the information provided in the permit application, including the legal contact, the project legal description or map originally submitted with the application, or the planned total disturbed acreage. The permittee shall furnish the Division with any plans and specifications which the Division deems reasonably necessary to evaluate the effect on the discharge and receiving stream. If applicable, this notification may be accomplished through submittal of an application for a CDPS process water permit authorizing the discharge. The SWMP shall be updated and implemented prior to the changes (see Part I.D.5.c). Any discharge to the waters of the State from a point source other than specifically authorized by this permit or a different CDPS permit is prohibited. 2. Special Notifications - Definitions a) Spill: An unintentional release of solid or liquid material which may cause pollution of state waters. b) Upset: An exceptional incident in which there is unintentional and temporary noncompliance with permit discharge limitations because of factors beyond the reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation. 3. Noncompliance Notification a) The permittee shall report the following instances of noncompliance: 1) Any noncompliance which may endanger health or the environment; 2) Any spill or discharge of hazardous substances or oil which may cause pollution of the waters of the state. 3) Any discharge of stormwater which may cause an exceedance of a water quality standard. b) For all instances of noncompliance based on environmental hazards and chemical spills and releases, all needed information must be provided orally to the Colorado Depaitnient of Public Health and Environment spill reporting line (24-hour number for environmental hazards and chemical spills and releases: 1-877-518-5608) within 24 hours from the time the permittee becomes aware of the circumstances. For all other instances of noncompliance as defined in this section, all needed information must be provided orally to the Water Quality Control Division within 24 hours from the time the permittee becomes aware of the circumstances. For all instances of noncompliance identified here, a written submission shall also be provided within 5 calendar days of the time the permittee becomes aware of the circumstances. The written submission shall contain a description of: 1) The noncompliance and its cause; 2) The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; 3) Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. A-22 4. Submission of Incorrect or Incomplete Information Where the permittee failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or report to the Division, or relevant new information becomes available, the permittee shall promptly submit the relevant application information which was not submitted or any additional information needed to correct any erroneous information previously submitted. 5. Bypass a) A bypass, which causes effluent limitations (i.e., requirements to implement BMPs in accordance with Parts I.B.3 and I.D.2 of the permit) to be exceeded is prohibited, and the Division may take enforcement action against a permittee for such a bypass, unless: 1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage; 2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities (e.g., alternative BMPs), retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if the permittee could have installed adequate backup equipment (e.g., implemented additional BMPs) to prevent a bypass which occurred during normal periods of equipment downtime or preventative maintenance; and 3) The permittee submitted notices as required in "Non -Compliance Notification," Part II.A.3. 6. Upsets a) Effect of an Upset: An upset constitutes an affirmative defense to an action brought for noncompliance with permit limitations and requirements if the requirements of paragraph b of this section are met. (No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review.) b) Conditions Necessary for a Demonstration of Upset: A permittee who wishes to establish the affirmative defense of upset shall demonstrate through properly signed contemporaneous operating logs, or other relevant evidence that: 1) An upset occurred and that the permittee can identify the specific cause(s) of the upset; 2) The permitted facility was at the time being properly operated; 3) The permittee submitted notice of the upset as required in Part II.A.3. of this permit (24-hour notice); and 4) The permittee complied with any remedial measures required under 40 CFR Section 122.41(d) of the federal regulations or Section 61.8(3)(h) of the Colorado Discharge Permit System Regulations. c) Burden of Proof: In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of proof. A-23 7. Removed Substances Solids, sludges, or other pollutants removed in the course of treatment or control of discharges shall be properly disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State. 8. Minimization of Adverse Impact The permittee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from noncompliance with any terms and conditions specified in this permit, including such accelerated or additional monitoring as necessary to determine the nature and impact of the noncomplying discharge. 9. Reduction, Loss, or Failure of Stormwater Controls The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the permit requirements. Upon reduction, loss, or failure of any stormwater controls, the permittee shall, to the extent necessary to maintain compliance with its permit, control production, or remove all pollutant sources from exposure to stormwater, or both, until the stormwater controls are restored or an alternative method of treatment/control is provided. It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. 10. Proper Operation and Maintenance The peimuttee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance includes effective performance, adequate funding, adequate operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems only when necessary to achieve compliance with the conditions of the permit. RESPONSIBILITIES 1 Inspections and Right to Entry The permittee shall allow the Director of the State Water Quality Control Division, the EPA Regional Administrator, and/or their authorized representative(s), upon the presentation of credentials: a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are required to be kept under the terms and conditions of this permit; b) At reasonable times to have access to and copy any records required to be kept under the terms and conditions of this permit and to inspect any monitoring equipment or monitoring method required in the permit; and c) To enter upon the permittee's premises to investigate, within reason, any actual, suspected, or potential source of water pollution, or any violation of the Colorado Water Quality Control Act. The investigation may include, but is not limited to, the following: sampling of any discharge and/or process waters, the taking of photographs, interviewing permittee staff on alleged violations and other matters related to the permit, and access to any and all facilities or areas within the permittee's premises that may have any effect on the discharge, permit, or any alleged violation. A-24 2. Duty to Provide Information The permittee shall furnish to the Division, within the time frame specified by the Division, any information which the Division may request to determine whether cause exists for modifying, revoking and reissuing, or inactivating coverage under this permit, or to determine compliance with this permit. The permittee shall also furnish to the Division, upon request, copies of records required to be kept by this permit. 3. Transfer of Ownership or Control Certification under this permit may be transferred to a new permittee if: a) The current permittee notifies the Division in writing when the transfer is desired as outlined in Part I.A.7; and b) The notice includes a written agreement between the existing and new permittees containing a specific date for transfer of permit responsibility, coverage and liability between them; and c) The current permittee has met all fee requirements of the Colorado Discharge Permit System Regulations, Section 61.15. 4. Modification, Suspension, or Revocation of Permit By Division All permit modification, inactivation or revocation and reissuance actions shall be subject to the requirements of the Colorado Discharge Permit System Regulations, Sections 61.5(2), 61.5(3), 61.7 and 61.15, 5 C.C.R. 1002-61, except for minor modifications. a) This permit, and/or certification under this permit, may be modified, suspended, or revoked in whole or in part during its term for reasons determined by the Division including, but not limited to, the following: 1) Violation of any terms or conditions of the permit; 2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or denial of a permit or to the establishment of terms or conditions of the permit; 3) Materially false or inaccurate statements or information in the application for the permit; 4) Promulgation of toxic effluent standards or prohibitions (including any schedule of compliance specified in such effluent standard or prohibition) which are established under Section 307 of the Clean Water Act, where such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any limitation for such pollutant in this permit. b) This permit, and/or certification under this permit, may be modified in whole or in part due to a change in any condition that requires either a temporary or permanent reduction or elimination of the permitted discharge, such as: 1) Promulgation of Water Quality Standards applicable to waters affected by the permitted discharge; or 2) Effluent limitations or other requirements applicable pursuant to the State Act or federal requirements; or 3) Control regulations promulgated; or 4) Other available information indicates a potential for violation of adopted Water Quality Standards or stream classifications. c) This permit, or certification under this permit, may be modified in whole or in part to include new effluent limitations and other appropriate permit conditions where data submitted pursuant to Part I A-25 indicate that such effluent limitations and permit conditions are necessary to ensure compliance with applicable water quality standards and protection of classified uses. d) At the request of the permittee, the Division may modify or inactivate certification under this permit if the following conditions are met: 1) In the case of inactivation, the permittee notifies the Division of its intent to inactivate the certification, and certifies that the site has been finally stabilized; 2) In the case of inactivation, the permittee has ceased any and all discharges to state waters and demonstrates to the Division there is no probability of further uncontrolled discharge(s) which may affect waters of the State. 3) The Division finds that the permittee has shown reasonable grounds consistent with the Federal and State statutes and regulations for such modification, amendment or inactivation; 4) Fee requirements of Section 61.15 of the Colorado Discharge Permit System Regulations have been met; and 5) Applicable requirements of public notice have been met. For small construction sites covered by a Qualifying Local Program, coverage under this permit is automatically terminated when a site has been finally stabilized. 5. Permit Violations Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit. Dischargers of stormwater associated with industrial activity, as defined in the EPA Stormwater Regulation (40 CFR 122.26(b)(14) and Section 61.3(2) of the Colorado Discharge Permit System Regulations, which do not obtain coverage under this or other Colorado general permits, or under an individual CDPS permit regulating industrial stormwater, will be in violation of the federal Clean Water Act and the Colorado Water Quality Control Act, 25-8-101, as amended. Failure to comply with CDPS permit requirements will also constitute a violation. 6. Legal Responsibilities The issuance of this permit does not convey any property or water rights in either real or personal property, or stream flows, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations. Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties established pursuant to any applicable State law or regulation under authority granted by Section 510 of the Clean Water Act. 7. Severability The provisions of this permit are severable. If any provisions of this permit, or the application of any provision of this permit to any circumstance, are held invalid, the application of such provision to other circumstances and the application of the remainder of this permit shall not be affected. 8. Renewal Application If the permittee desires to continue to discharge, a permit renewal application shall be submitted at least A-26 ninety (90) days before this permit expires. If the permittee anticipates that there will be no discharge after the expiration date of this permit, the Division should be promptly notified so that it can inactivate the certification in accordance with Part II.B.4.d. 9. Confidentiality Except for data determined to be confidential under Section 308 of the Federal Clean Water Act and Colorado Discharge Permit System Regulations, Section 61.5(4), all reports prepared in accordance with the terms of this permit shall be available for public inspection at the offices of the Division. The permittee must state what is confidential at the time of submittal. Any information relating to any secret process, method of manufacture or production, or sales or marketing data which has been declared confidential by the permittee, and which may be acquired, ascertained, or discovered, whether in any sampling investigation, emergency investigation, or otherwise, shall not be publicly disclosed by any member, officer, or employee of the Commission or the Division, but shall be kept confidential. Any person seeking to invoke the protection of this section shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full disclosure of effluent data. 10. Fees The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Failure to submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant to Section 25-8-601 et. seq., C.R.S. 1973 as amended. 11. Requiring an Individual CDPS Permit The Director may require the permittee to apply for and obtain an individual or alternate general CDPS permit if: a) The discharger is not in compliance with the conditions of this general permit; b) Conditions or standards have changed so that the discharge no longer qualifies for a general permit; or c) Data/information become available which indicate water quality standards may be violated. The permittee must be notified in writing that an application for an individual or alternate general CDPS permit is required. When an individual or alternate general CDPS permit is issued to an operator otherwise covered under this general permit, the applicability of this general permit to that operator is automatically inactivated upon the effective date of the individual or alternate general CDPS permit. A-27 APPENDIX B: BMP DETAILS APPENDIX C: SEED MIXTURE APPENDIX D: TRAINING RECORDS APPENDIX E: INACTIVATION FORMS APPENDIX F: OBSOLETE Please note: obsolete documents associated with this SWMP have been archived and are being stored in hard -copy format at Marathon's Grand Junction, CO, office location. In order to ensure that you are viewing the complete obsolete record, please refer both to Appendix F in the active SWMP (i.e., this document) and the archived binder. Thank you. APPENDIX A: CDPS GENERAL PERMIT 3/7/2012 Colorado Department of Public Heatth and Environment Air Pollution Control Division 4300 Cherry Creek Drive South Denver, CO 80246-1530 Marathon oil Re: Marathon Oil Company Garfield County, Colorado Construction Stormwater Renewal Reapplication: Permit Certification # COR03C052 Dear Sir or Madam: Marathon Oil (Marathon) respectfully submits the enclosed renewal reapplication for the above referenced permit certification under the Colorado Discharge Permit System's general storm water permit number COR030000. Also included with the reapplication is a copy of the previously submitted Change of Contact form which updates the information for the legally responsible person and site contact. Please feel free to contact me with any questions or requests for additional information. I can be reached via e-mail at mrvelasquez@marathonoit.com or by phone at (970) 244-5743. Sincerely, 1 taws / Melissa Velasquez Environmental Professional Cc: File Enclosures: CORO3C052 Renewal Reapplication COR03C052 Change of Contact form (copy) STATE OF COLORADO Dedicated to protecting and improving the health and environment of the people of Colorado 4300 Cherry Creek Dr. S. Denver, Colorado 80246-1530 Phone (303) 692-2000 TDD Line (303) 691-7700 Located in Glendale. Colorado http://www.cdphe.state.co_us Colorado Department of Public Health and Environment RENEWAL COLORADO DISCHARGE PERMIT SYSTEM (CDPS) STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES APPLICATION Permit COR030000 Cert#COR03C052 RENEWAL REAPPLICATION -- RESPONSE REQUIRED THE CDPS GENERAL PERMIT FOR STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITIES (COR030000) WILL EXPIRE JUNE 30, 2012 AND WILL BE ADMINISTRATIVELY CONTINUED AT THAT TIME. For Additional Information, see the Q&A Guidance: http://www.cdphe.state.co. us/wq/PermitsUnit/PermittingWhatsNew. htm • This reapplication form shows the current record for the facility listed on page 2 - active certification COR03C052 • For certification CORO3C052 to be administratively continued, this reapplication must be reviewed, corrected (if needed), signed, and returned to the division prior to March 31, 2012. This is the only action necessary to renew this certification. • If certification is no longer needed, please send in an inactivation form as soon as the facility is eligible. • Receipt of this form will be tracked on the Division's web site: http://www.cdphe.state.co.us/wq/PermitsUnit/construction.html. Select: Active Stormwater Construction Certifications (this list will be updated in the first week of each month). A date entry under "Application Received" indicates the date the Division received this renewal application. This also indicates that the certification is administratively continued. • A postcard will be sent to confirm the Division's receipt of the form a certification is administratively continued. Please allow up to 45 days for receipt of this confirmation. • Certifications for which no renewal is received will expire and be terminated effective June 30, 2012. • Please keep a copy of this application for your records. Please direct questions to cdphe.wqstorm@state.co.us, (303) 692-3517, or visit our website at www.coloradowaterpermits.com. Mail to: CDPHE/WQCD Attn Permits. 4300 Cherry Creek Dr South Denver CO 80246 Photo copies, faxed copies, pdf copies or emails will not be accepted by the Division. REVIEW AND CONFIRM THE FOLLOWING INFORMATION IS CORRECT (Verify That This Information Is Correct. Cross out and make changes as necessary.) APPLICATION to RENEW CERT # COR03C052 1. CONTACTS: PERMITTEE ORGANIZATION FORMAL NAME Marathon Oil Co LEGAL CONTACT (This is the party who must sign on page 2) Eric e. ward , DpevaAlcrns Superi n c)en 743 Horizon Ct Ste 220 Grand Junction CO 81506 Phone 713 296 2311 Email ward ? Mara. -4101 01 (. Cc-rr'1 LOCAL CONTACT q-10- Z4-4 5/35 �-1eUss . I�csauf>z., 1- -RcCessto-ytal Phone 9-10-245-52-3.3-x-2-2.35 Email evAoafdtameretheneilTeeniT hon . 1O 244 - 5 143 Organization: Haya. on C t 1 r V+?.(asaUE' z Mailing Address: —143 kiDrizc-ri Cow +, Su i -k 2-20 IVtc2,C. c3vtot(c0t City: (-;yrt2vld ch 4,,Y1 State: Co Zip: et5Z7(, CONTINUE TO BACK OF FORM Construction SW Renewal Application 2012 Cert #COR03C052 Marathon Oil Co Facility Piceance Area page 2 BILLING CONTACT in+.34:4s Marathon Oil Co 743 Horizon Ct Ste 220 Grand Junction CO 81506 Phone 9-70-246-52-33 Email °►o 2. PERMITTED PROJECT/FACILITYINFORMATION Verify That This Information Is Correct. Cross out and make changes as necessary: Project/Facility Name Piceance Area Address Or Cross Streets Parachute Creek & Garden Gulch City Uninc County Garfield Zip Code 81650 Facility Latitude 39/31/00 Longitude 108/10/00 Total Area Of Project Site (Acres):>5 Area Of Disturbance (Acres) >5 Nature Of Construction Activity Oil and Gas Production and/or Exploration Immediate Receiving Water(5):Garden Gulch Ultimate Receiving Water(S): Parachute Creek 3. SIGNATURE OF PERMIT LEGAL CONTACT "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." "I understand that submittal of this application is for coverage under the State of Colorado General Permit for Stormwater Discharges Associated with Construction Activity for the entirety of the construction site/project described and applied for, until such time as the application is amerjded or the certification is transferred, inactivated, or expired." bales iwt0.(c4nCO t . C2Nt'1 xx Signature of Legally Responsible Person listed in item 1 (submission must include original signature) Date Signed a p c -c -KD P, t S J) ¢-r r‘ -t - Name (printed) Title Per Regulation 61 In all cases APPLICATION shall be signed as follows: a) In the case of corporations, by a responsible corporate officer. For the purposes of this section, the responsible corporate officer is responsible for the overall operation of the facility from which the discharge described in the application originates. b) In the case of a partnership, by a general partner. c) In the case of a sole proprietorship, by the proprietor. d) In the case of a municipal, state, or other public facility, by either a principal executive officer or ranking elected official WQCD Mail Code 2034 Michael Suek, Ops Mgr Or environmental permitting representative for: Marathon Oil Co 743 Horizon Ct Ste 220 Grand Junction, CO 81650 i COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT Waler Qualify Control Dian 4300 Cherry Creek Dove South B2 Permits Derivef, Colorado 8824G -153Q STATE OF COLORADO r ell,v win [ kra n mem. of S�r,ld,e hlulrls uulln nen wool For Agency Use Only e Received f Y EHeave Oats CHANGE OF CONTACT(s) for all PERMITS. CERTIFICATIONS, AND AUTHORIZATIONS This form most be submitted ler damages wade to of 1w =weans or Witowzothore Insert below. PERMFT, CERTIFICATION, OR AUTHORIZATION>APi.rillMBFR t afx- iC lSo?. number dum not end in 0000) (A separate Turin MUSA be prepared for each Permit. CertifiCatiOrt, O4` Authonza<ilork covered by the changes..) PERMITTEE Of more than one please add additional pages) ORGANIZATION FortmAL N wit: MarathO ' Oil i . rporati on The legalty responsible organization is either the owner or operator of the facility or project to which the permit has been issued, Of both if desigtriated as co -permittees by the Diad_ .li"V NAhtw Pioeance Area PERMITTEE the person authorized to sign and certify the permit application. This person receives all permit corm and is legality respensible for compliance weipth the permit Responsible Position (Title): Operations Superintendent Currently Held By (Person)_ Eric R Ward Telephone Ivo: (97O) X33 7'y 513 5 email address erward@maratl il.c orn O rga n i to ti on : Marathon Oil Corporation 743 Horizon Court Suite 220 Guy- Grand Junction State: CO lip: 816°6 This tiara hist be .tinea by the Ptea Labe considered complete. Per Regulation 61 In al1 cases, it shall be signed as follows: a) In the case of corporations, by a responsible corporate officer. Cor the purposi of tis section, the rinpoosible corporate offices is rrzponsrlie for the overall oprer~atiprr of the facility from which the ifscharge described in the a$ originates. b) In the case of a partnership, by a gen: s -A partner. c} In the rase of a safe proprietorship, by the proprietor. d) In the case of a nttei[i , gate, co other Pub& tic y, by either a prirrcipet esreciAUrt dine or ranking elected of 6xiat Revised 1/21)11 1 CHANGE OF CO[drACT1s) for aU PERMITS, CERTIFICATIONS, AND AUTHORUEAT1ONS 2) DlitR COGNIZANT OFFICIAL (Le authorized amt) the person or position authorized to sip and certify reports required by permits including Discharge Monitoring Reports [OMit'sj, Annual Reports, Compliance 5thedirle submittals, and other information requested by the Division. The Division will transmit pre- printed reports (ie. DMR's) to this person. If more than one, please add additional pages. Responsible Position (Title): HES Professional Currently Held By (Person): Melissa Velasquez Telephone No: (970) 244-5743 email addressrruveiasqueZ@rnarathono1Loom Organization: Marathon Oil Corporation mailing Address: 743 Horizon Court Suite 110 City: Grand Junction State: CO Zip: 81506 Per RegoFad on St : AM newels required by s and other docs requested by the ui ion shall be sued by the permittee or by a duty authorized representative of that person. A person is a duly authorized representative only If: (i) The auihori ation is made in writing by the permittee (ii) The autttuxtraiiars sperifes either an it oat ora position havingiespansbality for theoveralt operaaion oldie regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, Position of equhsolent fir, or an individual or position having overall reponsilOrty for envrrat rnentat matters for the company. (A duly authorized resiresentative may thus be either a stained iadividnaior any pawed occupying a named position); and fin) The written authorization is submitted to the Division 3) SITE CONTACT local contact for questions relating to the facility & discharge authorized by this permit for the faay. Responsible position (Title): HES Professional Currently held ay (per): Mefrssa Velasquez Telephone No: (970) 244-5743 ema7 address rorvelasquezemarattionoil.oam organization: Marathon Oil Corporation maang Address: 743 Horizon Court Suite 220 City: Grand Junction State: CO zip: 81506 4) OPH?;AiOA in Responsible Charge Responsible Position (Title): Currently Held By (Person): Telephone No: email address Organization: Mailing Address: City: State: Trp: Certification Type Bion Number Revised snuex 1 CHANGE OF COHTACTHsI Tor an PER TS. CERTlICATUONS, AND AUTHORIZATIONS 5) BiaiNG CONTACT if different than the permittee Responsible Position (Title): Currently Held By (Person): Telephone No: email address Organization: Mailing Address: City: State: Zip: 6) OTHER CONTACT TYPES (check below) Add pages if necessary: Responsible Position (Title): Currently Held By (Person): Telephone No: email address Organization: Mailing Address: State: 2 Pretreatment Coordinator 7 Environmental Contact Responsible Party inspection FacsTrty Contact D Consultant REQUIRED aRTIRCAT#O$ SIGPVt1URE [Reg 61.A(1)N1 0 Cornpliance Contact 11 Stormarater 11+tS4 Responsible Person Stonrawarer Mrtborsaed Representative 0 Property Owner 2 Other "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel property gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief, true, accurate and complete. l am aware that there are significant penalties for submitting false information, ink the possibility of fuze and imprisonment for knowing viiolat'eans_* S ([n2/fly Responsble Party) Name (printed) citrs Date (((1(o (7-0(t Tye c�e12,K11‘1^S 5-idrAtfthdevti Revised tf201H • STATE OF COLORADO Bill Ritter, Jr., Governor James B. Martin, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado 4300 Cherry Creek Dr. S. Denver, Colorado 80246-1530 Phone (303) 692-2000 TDD Line (303) 691-7700 Located in Glendale, Colorado http://www.cdphe.state.co.us June 20, 2007 Laboratory Services Division 8100 Lowry Blvd. Denver, Colorado 80230-6928 (303) 692-3090 R.V. Coleman, Operations Mgr. Marathon Oil Co., P.O. Box 3128 Houston, TX 77253-3128 713/296-2311 RE: Final Permit, Colorado Discharge Permit System — Stormwater Certification No: COR -03C052 Piceance Area Garfield County Local Contact: R.V. Coleman, Ops. Mgr. 970/245-5233 Dear Sir or Madam: Colorado Department of Public Health and Environment Enclosed please find a copy of the new permit and certification which have'been re -issued to you under the Colorado Water Quality Control Act. Your old permit expires on June 30, 2007. This is a renewal to the permit, and replaces the old one. See page 2 of the Rationale (the pages in italics) for a summary of the changes to the permit. Your Certification under the permit requires that specific actions be performed at designated times. You are legally obligated to comply with all terms and conditions of the permit. Please read the permit and certification. If you have any questions please visit our website at : www.cdphe.state.co.us/wq/permitsunitlstormwater or contact Matt Czahor at (303) 692-3517. Sincerely, / t!jl Kathryn Dolan Stormwater Program Coordinator Permits Unit WATER QUALITY CONTROL DIVISION xc: Regional Council of Governments Local County Health Department District Engineer, Technical Services, WQCD Permit File STATE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT WATER QUALITY CONTROL DIVISION TELEPHONE: (303) 692-3500 CERTIFICATION TO DISCHARGE UNDER CDPS GENERAL PERMIT COR -030000 STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION Certification Number CUR03C052 This Certification to Discharge specifically authorizes: Marathon Oil Co. LEGAL CONTACT: R. V Coleman, Operations Mgr. Marathon Oil Co. P.U. Box 3128 Houston, 7X 77253-3128 Phone # 713/296-2311 rvcolemar ar(marathonoil. com LOCAL CONTACT: R.V. Coleman, Ops. Mgr., Phone # 970/245-5233 rvcoleman@marathonoil. com During the Construction Activity: Oil and Gas Production and/or Exploration to discharge stormwater from the facility identified as Piceance Area which is located at: Parachute Creek & Garden Gulch area ,Co Latitude 39/31/00, Longitude 108/10/00 In Garfield County to: Garden Gulch -- Parachute Creek Anticipated Activity begins 06/05/2007 continuing through 04/30/2012 On >5 acres (>5 acres disturbed) Certification is effective: 07101/2007 Certification Expires: 06/30/2012 Annual Fee: $245.00 (DO NOT PAY NOW -- A prorated bill will be sent shortly.) Page 1 of 22 HIGHLIGHTS CONSTRUCTION ACTIVITY (renewal) STORMWATER GENERAL PERMIT PERMIT REQUIREMENTS: * Inspections: Inspection of stormwater management system required at least every 14 days and after any precipitation or snowmelt event that causes surface erosion. (See Inspections, page 12 of the permit.) * Records: Records of inspections must be kept and be available for review by the Division. * Stormwater Management Plan (SWMP): The SWMP requirements have changed slightly. You may need to amend your SWMP — see the Rationale, page 3. Any needed changes must be completed by October 1, 2007. -A copy of the SWMP must be kept on site at all times. PERMIT FEE: * Send payment only when you receive an invoice (sent once a year). PERMIT TERMINATION AND TRANSFER: * If the facility is finally stabilized, you may inactivate the permit, using the enclosed Division form. * "Final stabilization" is reached when all the construction is complete, paving is finished, and the vegetation (grass, etc.) is established, not just reseeded. See permit, page 9. * If the site changes ownership, you should transfer the permit to the new owner. * If part of the site will be sold to a new owner, you will need to reassign permit coverage. * Forms for these actions are available on our website, below. Also see page 5 of the permit. QUESTIONS? * www.cdphe.state.co.us/wq/PermitsUnit/stormwater * Email cdphe.wqstorm@state.co.us * Or call (303)692-3517, ask for Matt Czahor or Kathy Rosow 6/07 Page 2 of 22 Permit No. COR -030000 CDPS GENERAL PERMIT STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY AUTHORIZATION TO DISCHARGE UNDER THE COLORADO DISCHARGE PERMIT SYSTEM In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et seq., CRS, 1973 as amended) and the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.; the "Act"), this permit authorizes the discharge of stormwater associated with construction activities (and specific allowable non-stormwater discharges in accordance with Part I.D.3 of the permit) certified under this permit, from those locations specified throughout the State of Colorado to specified waters of the State. Such discharges shall be in accordance with the conditions of this permit. This permit specifically authorizes the facility listed on the certification page (page 1) of this permit to discharge, as of this date, in accordance with permit requirements and conditions set forth in Parts I and II hereof. All discharges authorized herein shall be consistent with the terms and conditions of this permit. This permit and the authorization to discharge shall expire at midnight, June 30, 2012. Issued and Signed this 31st day of May, 2007 COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT 1U Janet S. Kieler Permits Section Manager Water Quality Control Division SIGNED AND ISSUED MAY 31, 2007 EFFECTIVE JULY 1, 2007 TABLE OF CONTENTS PART I A. COVERAGE UNDER THIS PERMIT A-5 1. Authority to Discharge A-5 a) Applicable Sections A-5 b) Oil and Gas Construction A-5 2. Definitions A-5 3. Permit Coverage Without Application — Qualifying Local Programs A-6 a) Applicable Sections A-6 b) Local Agency Authority A-6 c) Permit Coverage Termination A-6 d) Compliance with Qualifying Local Program A-6 e) Full Permit Applicability A-6 4. Application, Due Dates A-6 a) Application Due Dates A-6 b) Summary of Application A-7 5. Permit Certification Procedures A-7 a) Request for Additional Information A-7 b) Automatic Coverage A-7 c) Individual Permit Required A-7 d) General vs. Individual Permit Coverage A-7 e) Local Agency Authority A-7 6. Inactivation Notice A-7 7. Transfer of Permit A-8 8. Reassignment of Permit A-8 9. Sale of Residence to Homeowners A-8 10. Permit Expiration Date A-9 11. Individual Permit Criteria A-9 B. STORMWATER MANAGEMENT PLAN — GENERAL REQUIREMENTS A-9 C. STORMWATER MANAGEMENT PLAN — CONTENTS A-10 1. Site Description A-10 2. Site Map A-11 3. Stormwater Management Controls A-11 a) SWMP Administrator A-11 b) Identification of Potential Pollutant Sources A-11 c) Best Management Practices (BMPs) for Stormwater Pollution Prevention A-11 4. Final Stabilization and Long-term Stormwater Management A-13 5. Inspection and Maintenance A-13 D. TERMS AND CONDITIONS A-13 1. General Limitations A-13 2. BMP Implementation and Design Standards A-14 3. Prohibition of Non-Stormwater Discharges A-14 4. Releases in Excess of Reportable Quantities A-15 5. SWMP Requirements A-15 a) SWMP Preparation and Implementation A-15 b) SWMP Retention Requirements A-15 c) SWMP Review/Changes A-15 d) Responsive SWMP Changes A-15 6. Inspections A-16 a) Minimum Inspection Schedule A-16 b) Inspection Requirements A-17 c) Required Actions Following Site Inspections A-17 7. BMP Maintenance A-17 8. Replacement and Failed BMPs A-17 9. Reporting A-18 10. SWIVIP Availability A-18 11. Total Maximum Daily Load (TMDL) A-18 E. ADDITIONAL DEFINITIONS A-19 F. GENERAL REQUIREMENTS A-20 1. Signatory Requirements A-20 2. Retention of Records A-20 3. Monitoring A-21 PART II A. MANAGEMENT REQUIREMENTS A-22 1. Amending a Permit Certification A-22 2. Special Notifications — Definitions A-22 3. Noncompliance Notification A-22 4. Submission of Incorrect or Incomplete Information A-23 5. Bypass A-23 6. Upsets A-23 7. Removed Substances A-24 8. Minimization of Adverse Impact A-24 9. Reduction, Loss, or Failure of Stormwater Controls A-24 10. Proper Operation and Maintenance A-24 B. RESPONSIBILITIES A-24 1. Inspections and Right to Entry A-24 2. Duty to Provide Information A-25 3. Transfer of Ownership or Control A-25 4. Modification, Suspension, or Revocation of Permit By Division A-25 5. Permit Violations A-26 6. Legal Responsibilities A-26 7. Severability A-26 8. Renewal Application A-26 9. Confidentiality A-27 10. Fees A-27 11. Requiring an Individual CDPS Permit A-27 PART I A. COVERAGE UNDER THIS PERMIT 1. Authority to Discharge Under this permit, facilities are granted authorization to discharge stormwater associated with construction activities into waters of the state of Colorado. This permit also authorizes the discharge of specific allowable non-stormwater discharges, in accordance with Part I.D.3 of the permit, which includes discharges to the ground. This includes stormwater discharges from areas that are dedicated to producing earthen materials, such as soils, sand and gravel, for use at a single construction site (i.e., borrow or fill areas). This permit also authorizes stormwater discharges from dedicated asphalt batch plants and dedicated concrete batch plants. (Coverage under the construction site permit is not required for batch plants if they have alternate CDPS permit coverage.) This permit does not authorize the discharge of mine water or process water from such areas. a) Applicable Sections: In accordance with Part I.A.3 of this permit, some parts of this permit do not apply to sites covered under a Qualifying Local Program, as defined in I.A.2.d. For sites not covered by a Qualifying Local Program, all parts of the permit apply except Part I.A.3. The permittee will be responsible for determining and then complying with the applicable sections. b) Oil and Gas Construction: Stormwater discharges associated with construction activities directly related to oil and gas exploration, production, processing, and treatment operations or transmission facilities are regulated under the Colorado Discharge Permit System Regulations (5CCR 1002-61), and require coverage under this permit in accordance with that regulation. However, references in this permit to specific authority under the Federal Clean Water Act (CWA) do not apply to stormwater discharges associated with these oil and gas related construction activities, to the extent that the references are limited by the federal Energy Policy Act of 2005. 2. Definitions a) Stormwater: Stormwater is precipitation -induced surface runoff. b) Construction activity: Construction activity refers to ground surface disturbing activities, which include, but are not limited to, clearing, grading, excavation, demolition, installation of new or improved haul roads and access roads, staging areas, stockpiling of fill materials, and borrow areas. Construction does not include routine maintenance to maintain original line and grade, hydraulic capacity, or original purpose of the facility. c) Small construction activity: Stormwater discharge associated with small construction activity means the discharge of stormwater from construction activities that result in land disturbance of equal to or greater than one acre and less than five acres. Small construction activity also includes the disturbance of less than one acre of total land area that is part of a larger common plan of development or sale, if the larger common plan will ultimately disturb equal to or greater than one and less than five acres. d) Qualifying Local Program: This permit includes conditions that incorporate qualifying local erosion and sediment control program (Qualifying Local Program) requirements by reference. A Qualifying Local Program is a municipal stormwater program for stormwater discharges associated with small construction activity that has been formally approved by the Division. Other Definitions: Definitions of additional terms can be found in Part I.E. of this permit. 3. Permit Coverage Without Application — for small construction activities under a Qualifying Local Program only If a small construction site is within the jurisdiction of a Qualifying Local Program, the operator of the construction activity is authorized to discharge stormwater associated with small construction activity under this general permit without the submittal of an application to the Division. a) Applicable Sections: For sites covered by a Qualifying Local Program, only Parts 1.A.1, 1.A.2, 1.A.3, I.D.1, I.D.2, I.D.3, I.D.4, I.D.7, I.D.8, I.D.11, I.E and Part II of this permit, with the exception of Parts II.A.1, II.B.3, II.B.8, and II.B10, apply. b) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. c) Permit Coverage Termination: When a site under a Qualifying Local Program has been finally stabilized, coverage under this permit is automatically terminated. d) Compliance with Qualifying Local Program: A construction site operator that has authorization to discharge under this permit under Part I.A.3 shall comply with the requirements of the Qualifying Local Program with jurisdiction over the site. e) Full Permit Applicability: The Division may require any operator within the jurisdiction of a Qualifying Local Program covered under this permit to apply for and obtain coverage under the full requirements of this permit. The operator must be notified in writing that an application for full coverage is required. When a permit certification under this permit is issued to an operator that would otherwise be covered under Part I.A.3 of this permit, the full requirements of this permit replace the requirements as per Part I.A.3 of this permit, upon the effective date of the permit certification. A site brought under the full requirements of this permit must still comply with local stormwater management requirements, policies or guidelines as required by Part I.D.1.g of this permit. 4. Application, Due Dates a) Application Due Dates: At least ten calendar days prior to the commencement of construction activities, the applicant shall submit an application form as provided by the Division, with a certification that the Stormwater Management Plan (SWMP) is complete. One original completed discharge permit application shall be submitted, by mail or hand delivery, to: Colorado Department of Public Health and Environment Water Quality Control Division WQCD-Permits-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 b) Summary of Application: The application requires, at a minimum, the following: 1) The applicant's company name; address; telephone number; and email address (if available); whether the applicant is the owner, developer, or contractor; and local contact information; 2) Project name, address, county and location of the construction site, including the latitude and longitude to the nearest 15 seconds of the approximate center of the construction activity; 3) Legal description or map of the construction site; 4) Estimates of: the total area of the site, the area of the site that is expected to be disturbed, and the total area of the larger common plan of development or sale to undergo disturbance; 5) The nature of the construction activity; 6) The anticipated start date and final stabilization date for the project; 7) The name of the receiving water(s), or the municipal separate storm sewer system and the ultimate (i.e., named) receiving water(s); 8) Certification that the SWMP for the construction site is complete (see Part I.C. below); and 9) The signature of the applicant, signed in accordance with Part I.F.1 of this permit. 5. Permit Certification Procedures If this general permit is appropriate for the applicant's operation, then a certification will be developed and the applicant will be authorized to discharge stormwater under this general permit. a) Request for Additional Information: The Division shall have up to ten calendar days after receipt of the above information to request additional data and/or deny the authorization for any particular discharge. Upon receipt of additional information, the Division shall have an additional ten calendar days to issue or deny authorization for the particular discharge. (Notification of denial shall be by letter, in cases where coverage under an alternate general permit or an individual permit is required, instead of coverage under this permit.) b) Automatic Coverage: If the applicant does not receive a request for additional information or a notification of denial from the Division dated within ten calendar days of receipt of the application by the Division, authorization to discharge in accordance with the conditions of this permit shall be deemed granted. c) Individual Permit Required: If, after evaluation of the application (or additional information, such as the SWMP), it is found that this general permit is not appropriate for the operation, then the application will be processed as one for an individual permit. The applicant will be notified of the Division's decision to deny certification under this general permit. For an individual permit, additional information may be requested, and 180 days may be required to process the application and issue the permit. At the Division's discretion, temporary coverage under this general permit may be allowed until the individual permit goes into effect. d) General vs. Individual Permit Coverage: Any permittee authorized by this permit may request to be excluded from the coverage of this permit by applying for an individual CDPS permit. The permittee shall submit an individual application, with reasons supporting the request, to the Division at least 180 days prior to any discharge. e) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. 6. Inactivation Notice When a site has been finally stabilized in accordance with the SWMP, the permittee must submit an Inactivation Notice form that is signed in accordance with Part I.F.1. of this permit. The Inactivation Notice form is available from the Division and includes: a) Permit certification number; b) The permittee's name, address, telephone number; c) Name, location, and county for the construction site for which the inactivation notice is being submitted; and d) Certification that the site has been finally stabilized, and a description of the final stabilization method(s). 7. Transfer of Permit When responsibility for stormwater discharges at a construction site changes from one entity to another, the permittee shall submit a completed Notice of Transfer and Acceptance of Terms form that is signed in accordance with Part I.F.1. of this permit. The Notice of Transfer form is available from the Division and includes: a) Permit certification number; b) Name, location, and county for the construction site for which the Notice of Transfer is being submitted; c) Identifying information for the new permittee; d) Identifying information for the current permittee; and e) Effective date of transfer. If the new responsible party will not complete the transfer form, the permit may be inactivated upon written request to the Division and completion of the Inactivation Notice if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the site. In this case, the new owner or operator would be required to obtain permit coverage separately. 8. Reassignment of Permit When a permittee no longer has control of a specific portion of a permitted site, and wishes to transfer coverage of that portion of the site to a second party, the permittee shall submit a completed Notice of Reassignment of Permit Coverage form that is signed in accordance with Part I.F.1. of this permit. The Notice of Reassignment of Permit Coverage form is available from the Division and includes: a) Current permit certification number; b) Identifying information and certification as required by Part I.A.4.b for the new permittee; c) Identifying information for the current permittee, revised site information and certification for reassignment; and d) Effective date of reassignment. If the new responsible party will not complete the reassignment form, the applicable portion of the permitted site may be removed from permit coverage upon written request to the Division if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the portion of the site. In this case, the new owner or operator would be required to obtain permit coverage separately. 9. Sale of Residence to Homeowners For residential construction only, when a residential lot has been conveyed to a homeowner and all criteria in paragraphs a through e, below, are met, coverage under this permit is no longer required and the conveyed lot may be removed from coverage under the permittee's certification. At such time, the permittee is no longer responsible for meeting the terms and conditions of this permit for the conveyed lot, including the requirement to transfer or reassign permit coverage. The permittee remains responsible for inactivation of the original certification. a) The lot has been sold to the homeowner(s) for private residential use; b) the lot is less than one acre of disturbed area; c) all construction activity conducted by the permittee on the lot is completed; d) a certificate of occupancy (or equivalent) has been awarded to the home owner; and e) the SWMP has been amended to indicate the lot is no longer covered by permit. Lots not meeting all of the above criteria require continued permit coverage. However, this permit coverage may be transferred (Part I.A.7, above) or reassigned (Part I.A.8, above) to a new owner or operator. 10. Permit Expiration Date Authorization to discharge under this general permit shall expire on June 30, 2012. The Division must evaluate and reissue this general permit at least once every five years and must recertify the permittee's authority to discharge under the general permit at such time. Therefore, a permittee desiring continued coverage under the general permit must reapply by March 31, 2012. The Division will initiate the renewal process; however, it is ultimately the permittee's responsibility to ensure that the renewal is submitted. The Division will determine if the permittee may continue to operate under the terms of the general permit. An individual permit may be required for any facility not reauthorized to discharge under the reissued general permit. 11. Individual Permit Criteria Various criteria can be used in evaluating whether or not an individual (or alternate general) permit is required instead of this general permit. This information may come from the application, SWMP, or additional information as requested by the Division, and includes, but is not limited to, the following: a) the quality of the receiving waters (i.e., the presence of downstream drinking water intakes or a high quality fishery, or for preservation of high quality water); b) the size of the construction site; c) evidence of noncompliance under a previous permit for the operation; d) the use of chemicals within the stormwater system; or e) discharges of pollutants of concern to waters for which there is an established Total Maximum Daily Load (TMDL). In addition, an individual permit may be required when the Division has shown or has reason to suspect that the stormwater discharge may contribute to a violation of a water quality standard. B. STORMWATER MANAGEMENT PLAN (SWMP) — GENERAL REQUIREMENTS 1. A SWMP shall be developed for each facility covered by this permit. The SWMP shall be prepared in accordance with good engineering, hydrologic and pollution control practices. (The SWMP need not be prepared by a registered engineer.) 2. The SWMP shall: a) Identify all potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges associated with construction activity from the facility; b) Describe the practices to be used to reduce the pollutants in stormwater discharges associated with construction activity at the facility; and ensure the practices are selected and described in accordance with good engineering practices, including the installation, implementation and maintenance requirements; and c) Be properly prepared, and updated in accordance with Part I.D.5.c, to ensure compliance with the terms and conditions of this permit. 3. Facilities must implement the provisions of the SWMP as written and updated, from commencement of construction activity until final stabilization is complete, as a condition of this permit. The Division reserves the right to review the SWMP, and to require the permittee to develop and implement additional measures to prevent and control pollution as needed. 4. The SWMP may reflect requirements for Spill Prevention Control and Countermeasure (SPCC) plans under section 311 of the CWA, or Best Management Practices (BMPs) Programs otherwise required by a separate CDPS permit, and may incorporate any part of such plans into the SWMP by reference, provided that the relevant sections of such plans are available as part of the SWMP consistent with Part I.D.5.b. 5. For any sites with permit coverage before June 30, 2007, the permittee's SMWP must meet the new SWMP requirements as summarized in Section II.I of the rationale. Any needed changes must be made by October 1, 2007. C. STORMWATER MANAGEMENT PLAN (SWMP) — CONTENTS The SWMP shall include the following items, at a minimum. 1. Site Description. The SWMP shall clearly describe the construction activity, to include: a) The nature of the construction activity at the site. b) The proposed sequence for major activities. c) Estimates of the total area of the site, and the area and location expected to be disturbed by clearing, excavation, grading, or other construction activities. d) A summary of any existing data used in the development of the site construction plans or SWMP that describe the soil or existing potential for soil erosion. e) A description of the existing vegetation at the site and an estimate of the percent vegetative ground cover. f) The location and description of all potential pollution sources, including ground surface disturbing activities (see Part I.A.2.b), vehicle fueling, storage of fertilizers or chemicals, etc. g) The location and description of any anticipated allowable sources of non-stormwater discharge at the site, e.g., uncontaminated springs, landscape irrigation return flow, construction dewatering, and concrete washout. h) The name of the receiving water(s) and the size, type and location of any outfall(s). If the stormwater discharge is to a municipal separate storm sewer system, the name of that system, the location of the storm sewer discharge, and the ultimate receiving water(s). 2. Site Map. The SWMP shall include a legible site map(s), showing the entire site, identifying: a) construction site boundaries; b) all areas of ground surface disturbance; c) areas of cut and fill; d) areas used for storage of building materials, equipment, soil, or waste; e) locations of dedicated asphalt or concrete batch plants; f) locations of all structural BMPs; g) locations of non-structural BMPs as applicable; and h) locations of springs, streams, wetlands and other surface waters. 3. Stormwater Management Controls. The SWMP must include a description of all stormwater management controls that will be implemented as part of the construction activity to control pollutants in stormwater discharges. The appropriateness and priorities of stormwater management controls in the SWMP shall reflect the potential pollutant sources identified at the facility. The description of stormwater management controls shall address the following components, at a minimum: a) SWMP Administrator - The SWMP shall identify a specific individual(s), position or title who is responsible for developing, implementing, maintaining, and revising the SWMP. The activities and responsibilities of the administrator shall address all aspects of the facility's SWMP. b) Identification of Potential Pollutant Sources -All potential pollutant sources, including materials and activities, at a site must be evaluated for the potential to contribute pollutants to stormwater discharges. The SWMP shall identify and describe those sources determined to have the potential to contribute pollutants to stormwater discharges, and the sources must be controlled through BMP selection and implementation, as required in paragraph (c), below. At a minimum, each of the following sources and activities shall be evaluated for the potential to contribute pollutants to stormwater discharges, and identified in the SWMP if found to have such potential: 1) all disturbed and stored soils; 2) vehicle tracking of sediments; 3) management of contaminated soils; 4) loading and unloading operations; 5) outdoor storage activities (building materials, fertilizers, chemicals, etc.); 6) vehicle and equipment maintenance and fueling; 7) significant dust or particulate generating processes; 8) routine maintenance activities involving fertilizers, pesticides, detergents, fuels, solvents, oils, etc.; 9) on-site waste management practices (waste piles, liquid wastes, dumpsters, etc.); 10) concrete truck/equipment washing, including the concrete truck chute and associated fixtures and equipment; 11) dedicated asphalt and concrete batch plants; 12) non -industrial waste sources such as worker trash and portable toilets; and 13) other areas or procedures where potential spills can occur. c) Best Management Practices (BMPs) for Stormwater Pollution Prevention - The SWMP shall identify and describe appropriate BMPs, including, but not limited to, those required by paragraphs 1 through 8 below, that will be implemented at the facility to reduce the potential of the sources identified in Part I.C.3.b to contribute pollutants to stormwater discharges. The SWMP shall clearly describe the installation and implementation specifications for each BMP identified in the SWMP to ensure proper implementation, operation and maintenance of the BMP. 1) Structural Practices for Erosion and Sediment Control. The SWMP shall clearly describe and locate all structural practices implemented at the site to minimize erosion and sediment transport. Practices may include, but are not limited to: straw bales, wattles/sediment control logs, silt fences, earth dikes, drainage swales, sediment traps, subsurface drains, pipe slope drains, inlet protection, outlet protection, gabions, and temporary or permanent sediment basins. 2) Non -Structural Practices for Erosion and Sediment Control. The SWMP shall clearly describe and locate, as applicable, all non-structural practices implemented at the site to minimize erosion and sediment transport. Description must include interim and permanent stabilization practices, and site-specific scheduling for implementation of the practices. The SWMP should include practices to ensure that existing vegetation is preserved where possible. Non-structural practices may include, but are not limited to: temporary vegetation, permanent vegetation, mulching, geotextiles, sod stabilization, slope roughening, vegetative buffer strips, protection of trees, and preservation of mature vegetation. 3) Phased BMP Implementation. The SWMP shall clearly describe the relationship between the phases of construction, and the implementation and maintenance of both structural and non-structural stormwater management controls. The SWMP must identify the stormwater management controls to be implemented during the project phases, which can include, but are not limited to, clearing and grubbing; road construction; utility and infrastructure installation; vertical construction; final grading; and final stabilization. 4) Materials Handling and Spill Prevention. The SWMP shall clearly describe and locate all practices implemented at the site to minimize impacts from procedures or significant materials (see definitions at Part I.E.) that could contribute pollutants to runoff. Such procedures or significant materials could include: exposed storage of building materials; paints and solvents; fertilizers or chemicals; waste material; and equipment maintenance or fueling procedures. Areas or procedures where potential spills can occur must have spill prevention and response procedures identified in the SWMP. 5) Dedicated Concrete or Asphalt Batch Plants. The SWMP shall clearly describe and locate all practices implemented at the site to control stormwater pollution from dedicated concrete batch plants or dedicated asphalt batch plants covered by this certification. 6) Vehicle Tracking Control. The SWMP shall clearly describe and locate all practices implemented at the site to control potential sediment discharges from vehicle tracking. Practices must be implemented for all areas of potential vehicle tracking, and can include: minimizing site access; street sweeping or scraping; tracking pads; graveled parking areas; requiring that vehicles stay on paved areas on-site; wash racks; contractor education; and/or sediment control BMPs, etc. 7) Waste Management and Disposal, Including Concrete Washout. i) The SWMP shall clearly describe and locate the practices implemented at the site to control stormwater pollution from all construction site wastes (liquid and solid), including concrete washout activities. ii) The practices used for concrete washout must ensure that these activities do not result in the contribution of pollutants associated with the washing activity to stormwater runoff. iii) Part I.D.3.c of the permit authorizes the conditional discharge of concrete washout water to the ground. The SWMP shall clearly describe and locate the practices to be used that will ensure that no washout water from concrete washout activities is discharged from the site as surface runoff or to surface waters. 8) Groundwater and Stormwater Dewatering. i) The SWMP shall clearly describe and locate the practices implemented at the site to control stormwater pollution from the dewatering of groundwater or stormwater from excavations, wells, etc. ii) Part I.D.3.d of the permit authorizes the conditional discharge of construction dewatering to the ground. For any construction dewatering of groundwater not authorized under a separate CDPS discharge permit, the SWMP shall clearly describe and locate the practices to be used that will ensure that no groundwater from construction dewatering is discharged from the site as surface runoff or to surface waters. 4. Final Stabilization and Long-term Stormwater Management a) The SWMP shall clearly describe the practices used to achieve final stabilization of all disturbed areas at the site, and any planned practices to control pollutants in stormwater discharges that will occur after construction operations have been completed at the site. b) Final stabilization practices for obtaining a vegetative cover should include, as appropriate: seed mix selection and application methods; soil preparation and amendments; soil stabilization practices (e.g., crimped straw, hydro mulch or rolled erosion control products); and appropriate sediment control BMPs as needed until final stabilization is achieved; etc. c) Final stabilization is reached when all ground surface disturbing activities at the site have been completed, and uniform vegetative cover has been established with an individual plant density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. The Division may, after consultation with the permittee and upon good cause, amend the final stabilization criteria in this section for specific operations. 5. Inspection and Maintenance Part I.D.6 of the permit includes requirements for site inspections. Part I.D.7 of the permit includes requirements for BMP maintenance. The SWMP shall clearly describe the inspection and maintenance procedures implemented at the site to maintain all erosion and sediment control practices and other protective practices identified in the SWMP, in good and effective operating condition. D. TERMS AND CONDITIONS 1. General Limitations The following limitations shall apply to all discharges covered by this permit: a) Stormwater discharges from construction activities shall not cause, have the reasonable potential to cause, or measurably contribute to an exceedance of any water quality standard, including narrative standards for water quality. b) Concrete washout water shall not be discharged to state surface waters or to storm sewer systems. On-site permanent disposal of concrete washout waste is not authorized by this permit. Discharge to the ground of concrete washout waste that will subsequently be disposed of off-site is authorized by this permit. See Part I.D.3.c of the permit. c) Bulk storage structures for petroleum products and any other chemicals shall have secondary containment or equivalent adequate protection so as to contain all spills and prevent any spilled material from entering State waters. d) No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by the Division. In granting the use of such chemicals, special conditions and monitoring may be addressed by separate correspondence. e) The Division reserves the right to require sampling and testing, on a case-by-case basis, in the event that there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in removing pollutants in the effluent. Such monitoring may include Whole Effluent Toxicity testing. f) All site wastes must be properly managed to prevent potential pollution of State waters. This permit does not authorize on-site waste disposal. g) All dischargers must comply with the lawful requirements of federal agencies, municipalities, counties, drainage districts and other local agencies regarding any discharges of stormwater to storm drain systems or other water courses under their jurisdiction, including applicable requirements in municipal stormwater management programs developed to comply with CDPS permits. Dischargers must comply with local stormwater management requirements, policies or guidelines including erosion and sediment control. 2. BMP Implementation and Design Standards Facilities must select, install, implement, and maintain appropriate BMPs, following good engineering, hydrologic and pollution control practices. BMPs implemented at the site must be adequately designed to provide control for all potential pollutant sources associated with construction activity to prevent pollution or degradation of State waters. 3. Prohibition of Non-Stormwater Discharges a) Except as provided in paragraphs b, c, and d below, all discharges covered by this permit shall be composed entirely of stormwater associated with construction activity. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued for that discharge. b) Discharges from the following sources that are combined with stormwater discharges associated with construction activity may be authorized by this permit, provided that the non- stormwater component of the discharge is identified in the SWMP (see Part I.C.1.g of this permit): - emergency fire fighting activities - landscape irrigation return flow - uncontaminated springs Discharges to the ground of concrete washout water from washing of tools and concrete mixer chutes may be authorized by this permit, provided that: 1) the source is identified in the SWMP; 2) BMPs are included in the SWMP in accordance with Part I.C.3(c)(7) and to prevent pollution of groundwater in violation of Part I.D.1.a; and 3) these discharges do not leave the site as surface runoff or to surface waters d) Discharges to the ground of water from construction dewatering activities may be authorized by this permit, provided that: 1) the source is groundwater and/or groundwater combined with stormwater that does not contain pollutants in concentrations exceeding the State groundwater standards in Regulations 5 CCR 1002-41 and 42; 2) the source is identified in the SWMP; 3) BMPs are included in the SWMP, as required by Part I.C.3(c)(8); and 4) these discharges do not leave the site as surface runoff or to surface waters. Discharges to the ground from construction dewatering activities that do not meet the above criteria must be covered under a separate CDPS discharge permit. Contaminated groundwater requiring coverage under a separate CDPS discharge permit may include groundwater contaminated with pollutants from a landfill, mining activity, industrial pollutant plume, underground storage tank, or other source. 4. Releases in Excess of Reportable Quantities This permit does not relieve the permittee of the reporting requirements of 40 CFR 110, 40 CFR 117 or 40 CFR 302. Any discharge of hazardous material must be handled in accordance with the Division's Noncompliance Notification Requirements (see Part II.A.3 of the permit). 5. SWMP Requirements a) SWMP Preparation and Implementation: The SWMP shall be prepared prior to applying for coverage under the general permit, and certification of its completion submitted with the application. The SWMP shall be implemented prior to commencement of construction activities. The plan shall be updated as appropriate (see paragraph c, below), below). SWMP provisions shall be implemented until expiration or inactivation of permit coverage. b) SWMP Retention Requirements: A copy of the SWMP must be retained on site unless another location, specified by the permittee, is approved by the Division. SWMP Review/Changes: The permittee shall amend the SWMP: 1) when there is a change in design, construction, operation, or maintenance of the site, which would require the implementation of new or revised BMPs; or 2) if the SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with construction activity; or 3) when BMPs are no longer necessary and are removed. SWMP changes shall be made prior to changes in the site conditions, except as allowed for in paragraph d, below. SWMP revisions may include, but are not limited to: potential pollutant source identification; selection of appropriate BMPs for site conditions; BMP maintenance procedures; and interim and final stabilization practices. The SWMP changes may include a schedule for further BMP design and implementation, provided that, if any interim BMPs are needed to comply with the permit, they are also included in the SWMP and implemented during the interim period. d) Responsive SWMP Changes: SWMP changes addressing BMP installation and/or implementation are often required to be made in response to changing conditions, or when current BMPs are determined ineffective. The majority of SWMP revisions to address these changes can be made immediately with quick in -the -field revisions to the SWMP. In the less common scenario where more complex development of materials to modify the SWMP is necessary, SWMP revisions shall be made in accordance with the following requirements: 1) the SWMP shall be revised as soon as practicable, but in no case more than 72 hours after the change(s) in BMP installation and/or implementation occur at the site, and 2) a notation must be included in the SWMP prior to the site change(s) that includes the time and date of the change(s) in the field, an identification of the BMP(s) removed or added, and the location(s) of those BMP(s). 6. Inspections Site inspections must be conducted in accordance with the following requirements and minimum schedules. The required minimum inspection schedules do not reduce or eliminate the permittee's responsibility to implement and maintain BMPs in good and effective operational condition, and in accordance with the SWMP, which could require more frequent inspections. a) Minimum Inspection Schedule: The permittee shall, at a minimum, make a thorough inspection, in accordance with the requirements in I.D.6.b below, at least once every 14 calendar days. Also, post -storm event inspections must be conducted within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion. Provided the timing is appropriate, the post -storm inspections may be used to fulfill the 14 -day routine inspection requirement. A more frequent inspection schedule than the minimum inspections described may be necessary, to ensure that BMPs continue to operate as needed to comply with the permit. The following conditional modifications to this Minimum Inspection Schedule are allowed: 1) Post -Storm Event Inspections at Temporarily Idle Sites — If no construction activities will occur following a storm event, post -storm event inspections shall be conducted prior to re -commencing construction activities, but no later than 72 hours following the storm event. The occurrence of any such delayed inspection must be documented in the inspection record. Routine inspections still must be conducted at least every 14 calendar days. 2) Inspections at Completed Sites/Areas — For sites or portions of sites that meet the following criteria, but final stabilization has not been achieved due to a vegetative cover that has not become established, the permittee shall make a thorough inspection of their stormwater management system at least once every month, and post -storm event inspections are not required. This reduced inspection schedule is only allowed if: i) all construction activities that will result in surface ground disturbance are completed; ii) all activities required for final stabilization, in accordance with the SWMP, have been completed, with the exception of the application of seed that has not occurred due to seasonal conditions or the necessity for additional seed application to augment previous efforts; and iii) the SWMP has been amended to indicate those areas that will be inspected in accordance with the reduced schedule allowed for in this paragraph. 3) Winter Conditions Inspections Exclusion — Inspections are not required at sites where construction activities are temporarily halted, snow cover exists over the entire site for an extended period, and melting conditions posing a risk of surface erosion do not exist. This exception is applicable only during the period where melting conditions do not exist, and applies to the routine 14 -day and monthly inspections, as well as the post-stormevent inspections. The following information must be documented in the inspection record for use of this exclusion: dates when snow cover occurred, date when construction activities ceased, and date melting conditions began. Inspections, as described above, are required at all other times. When site conditions make the schedule required in this section impractical, the permittee may petition the Division to grant an alternate inspection schedule. b) Inspection Requirements 1) Inspection Scope - The construction site perimeter, all disturbed areas, material and/or waste storage areas that are exposed to precipitation, discharge locations, and locations where vehicles access the site shall be inspected for evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging to state waters. All erosion and sediment control practices identified in the SWMP shall be evaluated to ensure that they are maintained and operating correctly. 2) Inspection Report/Records - The permittee shall keep a record of inspections. Inspection reports must identify any incidents of non-compliance with the terms and conditions of this permit. Inspection records must be retained for three years from expiration or inactivation of permit coverage. At a minimum, the inspection report must include: i) The inspection date; ii) Name(s) and title(s) of personnel making the inspection; iii) Location(s) of discharges of sediment or other pollutants from the site; iv) Location(s) of BMPs that need to be maintained; v) Location(s) of BMPs that failed to operate as designed or proved inadequate for a particular location; vi) Location(s) where additional BMPs are needed that were not in place at the time of inspection; vii) Deviations from the minimum inspection schedule as provided in Part I.D.6.a above; vii) Description of corrective action for items iii, iv, v, and vi, above, dates corrective action(s) taken, and measures taken to prevent future violations, including requisite changes to the SWMP, as necessary; and viii) After adequate corrective action(s) has been taken, or where a report does not identify any incidents requiring corrective action, the report shall contain a signed statement indicating the site is in compliance with the permit to the best of the signer's knowledge and belief. c) Required Actions Following Site Inspections — Where site inspections note the need for BMP maintenance activities, BMPs must be maintained in accordance with the SWMP and Part I.D.7 of the permit. Repair, replacement, or installation of new BMPs determined necessary during site inspections to address ineffective or inadequate BMPs must be conducted in accordance with Part I.D.8 of the permit. SWMP updates required as a result of deficiencies in the SWMP noted during site inspections shall be made in accordance with Part I.D.5.c of the permit. 7. BMP Maintenance All erosion and sediment control practices and other protective measures identified in the SWMP must be maintained in effective operating condition. Proper selection and installation of BMPs and implementation of comprehensive Inspection and Maintenance procedures, in accordance with the SWMP, should be adequate to meet this condition. BMPs that are not adequately maintained in accordance with good engineering, hydrologic and pollution control practices, including removal of collected sediment outside the acceptable tolerances of the BMPs, are considered to be no longer operating effectively and must be addressed in accordance with Part I.D.8, below. A specific timeline for implementing maintenance procedures is not included in this permit because BMP maintenance is expected to be proactive, not responsive. Observations resulting in BMP maintenance activities can be made during a site inspection, or during general observations of site conditions. 8. Replacement and Failed BMPs Adequate site assessment must be performed as part of comprehensive Inspection and Maintenance procedures, to assess the adequacy of BMPs at the site, and the necessity of changes to those BMPs to ensure continued effective performance. Where site assessment results in the determination that new or replacement BMPs are necessary, the BMPs must be installed to ensure on-going implementation of BMPs as per Part I.D.2. Where BMPs have failed, resulting in noncompliance with Part I.D.2, they must be addressed as soon as possible, immediately in most cases, to minimize the discharge of pollutants. When new BMPs are installed or BMPs are replaced, the SWMP must be updated in accordance with Part I.D.5(c). 9. Reporting No scheduled reporting requirements are included in this permit; however, the Division reserves the right to request that a copy of the inspection reports be submitted. 10. SWMP Availability A copy of the SWMP shall be provided upon request to the Division, EPA, or any local agency in charge of approving sediment and erosion plans, grading plans or stormwater management plans, and within the time frame specified in the request. If the SWMP is required to be submitted to any of these entities, it must include a signed certification in accordance with Part I.F.1 of the permit, certifying that the SWMP is complete and meets all permit requirements. All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b) of the CWA and Section 61.5(4) of the Colorado Discharge Permit System Regulations. The pennittee shall make plans available to members of the public upon request. However, the permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2. 11. Total Maximum Daily Load (TMDL) If a TMDL has been approved for any waterbody into which the permittee discharges, and stormwater discharges associated with construction activity have been assigned a pollutant -specific Wasteload Allocation (WLA) under the TMDL, the Division will either: a) Ensure that the WLA is being implemented properly through alternative local requirements, such as by a municipal stormwater permit; or b) Notify the permittee of the WLA, and amend the permittee's certification to add specific BMPs and/or other requirements, as appropriate. The permittee may be required to do the following: 1) Under the permittee's SWMP, implement specific management practices based on requirements of the WLA, and evaluate whether the requirements are being met through implementation of existing stormwater BMPs or if additional BMPs are necessary. Document the calculations or other evidence that show that the requirements are expected to be met; and 2) If the evaluation shows that additional or modified BMPs are necessary, describe the type and schedule for the BMP additions/revisions. Discharge monitoring may also be required. The permittee may maintain coverage under the general permit provided they comply with the applicable requirements outlined above. The Division reserves the right to require individual or alternate general permit coverage. E. ADDITIONAL DEFINITIONS For the purposes of this permit: 1. Best Management Practices (BMPs): schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of waters of the State. BMPs also include treatment requirements, operating procedures, pollution prevention, and practices to control site runoff, spillage or leaks, waste disposal, or drainage from material storage. 2. Dedicated asphalt plants and concrete plants: portable asphalt plants and concrete plants that are located on or adjacent to a construction site and that provide materials only to that specific construction site. 3. Final stabilization: when all ground surface disturbing activities at the site have been completed, and uniform vegetative cover has been established with an individual plant density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. For purposes of this permit, establishment of a vegetative cover capable of providing erosion control equivalent to pre-existing conditions at the site will be considered final stabilization. 4. Municipal separate storm sewer system: a conveyance or system of conveyances (including: roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains), owned or operated by a State, city, town, county, district, or other public body (created by state law), having jurisdiction over disposal of sewage, industrial waste, stormwater, or other wastes; designed or used for collecting or conveying stormwater. 5. Operator: the entity that has day-to-day supervision and control of activities occurring at the construction site. This can be the owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. It is anticipated that at different phases of a construction project, different types of parties may satisfy the definition of 'operator' and that the permit may be transferred as the roles change. 6. Outfall: a point source at the point where stormwater leaves the construction site and discharges to a receiving water or a stormwater collection system. 7. Part of a larger common plan of development or sale: a contiguous area where multiple separate and distinct construction activities may be taking place at different times on different schedules. 8. Point source: any discernible, confined and discrete conveyance from which pollutants are or may be discharged. Point source discharges of stormwater result from structures which increase the imperviousness of the ground which acts to collect runoff, with runoff being conveyed along the resulting drainage or grading pattern. 9. Pollutant: dredged spoil, dirt, slurry, solid waste, incinerator residue, sewage, sewage sludge, garbage, trash, chemical waste, biological nutrient, biological material, radioactive material, heat, wrecked or discarded equipment, rock, sand, or any industrial, municipal or agricultural waste. 10. Process water: any water which, during manufacturing or processing, comes into contact with or results from the production of any raw material, intermediate product, finished product, by product or waste product. This definition includes mine drainage. 11. Receiving Water: any classified stream segment (including tributaries) in the State of Colorado into which stormwater related to construction activities discharges. This definition includes all water courses, even if they are usually dry, such as borrow ditches, arroyos, and other unnamed waterways. 12. Significant Materials include, but are not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic pellets; finished materials such as metallic products; raw materials used in food processing or production; hazardous substances designated under section 101(14) of CERCLA; any chemical the facility is required to report pursuant to section 313 of title III of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that have the potential to be released with stormwater discharge. 13. Stormwater: precipitation -induced surface runoff. F. GENERAL REQUIREMENTS 1. Signatory Requirements a) All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the following criteria: 1) In the case of corporations, by a principal executive officer of at least the level of vice- president or his or her duly authorized representative, if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates; 2) In the case of a partnership, by a general partner; 3) In the case of a sole proprietorship, by the proprietor; 4) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking elected official, or other duly authorized employee, if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates. b) Changes to authorization. If an authorization under paragraph a) of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph a) of this section must be submitted to the Division, prior to or together with any reports, information, or applications to be signed by an authorized representative. c) Certification. Any person signing a document under paragraph a) of this section shall make the following certification: "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." 2. Retention of Records a) The permittee shall retain copies of the SWMP and all reports required by this permit and records of all data used to complete the application to be covered by this permit, for three years after expiration or inactivation of permit coverage. b) The permittee shall retain a copy of the SWMP required by this permit at the construction site from the date of project initiation to the date of expiration or inactivation of permit coverage, unless another location, specified by the permittee, is approved by the Division. 3. Monitoring The Division reserves the right to require sampling and testing, on a case-by-case basis (see Part I.D.1.e), for example to implement the provisions of a TMDL (see Part I.D.11 of the permit). Reporting procedures for any monitoring data collected will be included in the notification by the Division of monitoring requirements. If monitoring is required, the following definitions apply: a) The thirty (30) day average shall be determined by the arithmetic mean of all samples collected during a thirty (30) consecutive -day period. b) A grab sample, for monitoring requirements, is a single "dip and take" sample. PART II A. MANAGEMENT REQUIREMENTS 1. Amending a Permit Certification The permittee shall inform the Division (Permits Section) in writing of changes to the information provided in the permit application, including the legal contact, the project legal description or map originally submitted with the application, or the planned total disturbed acreage. The permittee shall furnish the Division with any plans and specifications which the Division deems reasonably necessary to evaluate the effect on the discharge and receiving stream. If applicable, this notification may be accomplished through submittal of an application for a CDPS process water permit authorizing the discharge. The SWMP shall be updated and implemented prior to the changes (see Part I.D.5.c). Any discharge to the waters of the State from a point source other than specifically authorized by this permit or a different CDPS permit is prohibited. 2. Special Notifications - Definitions a) Spill: An unintentional release of solid or liquid material which may cause pollution of state waters. b) Upset: An exceptional incident in which there is unintentional and temporary noncompliance with permit discharge limitations because of factors beyond the reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation. 3. Noncompliance Notification a) The permittee shall report the following instances of noncompliance: 1) Any noncompliance which may endanger health or the environment; 2) Any spill or discharge of hazardous substances or oil which may cause pollution of the waters of the state. 3) Any discharge of stormwater which may cause an exceedance of a water quality standard. b) For all instances of noncompliance based on environmental hazards and chemical spills and releases, all needed information must be provided orally to the Colorado Depai Intent of Public Health and Environment spill reporting line (24-hour number for environmental hazards and chemical spills and releases: 1-877-518-5608) within 24 hours from the time the permittee becomes aware of the circumstances. For all other instances of noncompliance as defined in this section, all needed information must be provided orally to the Water Quality Control Division within 24 hours from the time the permittee becomes aware of the circumstances. For all instances of noncompliance identified here, a written submission shall also be provided within 5 calendar days of the time the permittee becomes aware of the circumstances. The written submission shall contain a description of: 1) The noncompliance and its cause; 2) The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; 3) Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. 4. Submission of Incorrect or Incomplete Information Where the permittee failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or report to the Division, or relevant new information becomes available, the permittee shall promptly submit the relevant application information which was not submitted or any additional information needed to correct any erroneous information previously submitted. 5. Bypass a) A bypass, which causes effluent limitations (i.e., requirements to implement BMPs in accordance with Parts I.B.3 and I.D.2 of the permit) to be exceeded is prohibited, and the Division may take enforcement action against a permittee for such a bypass, unless: 1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage; 2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities (e.g., alternative BMPs), retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if the permittee could have installed adequate backup equipment (e.g., implemented additional BMPs) to prevent a bypass which occurred during normal periods of equipment downtime or preventative maintenance; and 3) The permittee submitted notices as required in "Non -Compliance Notification," Part II.A.3. 6. Upsets a) Effect of an Upset: An upset constitutes an affirmative defense to an action brought for noncompliance with permit limitations and requirements if the requirements of paragraph b of this section are met. (No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review.) b) Conditions Necessary for a Demonstration of Upset: A permittee who wishes to establish the affirmative defense of upset shall demonstrate through properly signed contemporaneous operating logs, or other relevant evidence that: 1) An upset occurred and that the permittee can identify the specific cause(s) of the upset; 2) The permitted facility was at the time being properly operated; 3) The permittee submitted notice of the upset as required in Part II.A.3. of this permit (24- hour notice); and 4) The permittee complied with any remedial measures required under 40 CFR Section 122.41(d) of the federal regulations or Section 61.8(3)(h) of the Colorado Discharge Permit System Regulations. c) Burden of Proof: In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of proof. 7. Removed Substances Solids, sludges, or other pollutants removed in the course of treatment or control of discharges shall be properly disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State. 8. Minimization of Adverse Impact The permittee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from noncompliance with any terms and conditions specified in this permit, including such accelerated or additional monitoring as necessary to determine the nature and impact of the noncomplying discharge. 9. Reduction, Loss, or Failure of Stormwater Controls The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the permit requirements. Upon reduction, loss, or failure of any stormwater controls, the permittee shall, to the extent necessary to maintain compliance with its permit, control production, or remove all pollutant sources from exposure to stormwater, or both, until the stormwater controls are restored or an alternative method of treatment/control is provided. It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. 10. Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance includes effective performance, adequate funding, adequate operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems only when necessary to achieve compliance with the conditions of the permit. B. RESPONSIBILITIES 1. Inspections and Right to Entry The permittee shall allow the Director of the State Water Quality Control Division, the EPA Regional Administrator, and/or their authorized representative(s), upon the presentation of credentials: a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are required to be kept under the terms and conditions of this permit; b) At reasonable times to have access to and copy any records required to be kept under the terms and conditions of this permit and to inspect any monitoring equipment or monitoring method required in the permit; and To enter upon the permittee's premises to investigate, within reason, any actual, suspected, or potential source of water pollution, or any violation of the Colorado Water Quality Control Act. The investigation may include, but is not limited to, the following: sampling of any discharge and/or process waters, the taking of photographs, interviewing permittee staff on alleged violations and other matters related to the permit, and access to any and all facilities or areas within the permittee's premises that may have any effect on the discharge, permit, or any alleged violation. 2. Duty to Provide Information The permittee shall furnish to the Division, within the time frame specified by the Division, any information which the Division may request to determine whether cause exists for modifying, revoking and reissuing, or inactivating coverage under this permit, or to determine compliance with this permit. The permittee shall also furnish to the Division, upon request, copies of records required to be kept by this permit. 3. Transfer of Ownership or Control Certification under this permit may be transferred to a new permittee if: a) The current permittee notifies the Division in writing when the transfer is desired as outlined in Part I.A.7; and b) The notice includes a written agreement between the existing and new permittees containing a specific date for transfer of permit responsibility, coverage and liability between them; and c) The current permittee has met all fee requirements of the Colorado Discharge Permit System Regulations, Section 61.15. 4. Modification, Suspension, or Revocation of Permit By Division All permit modification, inactivation or revocation and reissuance actions shall be subject to the requirements of the Colorado Discharge Permit System Regulations, Sections 61.5(2), 61.5(3), 61.7 and 61.15, 5 C.C.R. 1002-61, except for minor modifications. a) This permit, and/or certification under this permit, may be modified, suspended, or revoked in whole or in part during its term for reasons determined by the Division including, but not limited to, the following: 1) Violation of any terms or conditions of the permit; 2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or denial of a permit or to the establishment of terms or conditions of the permit; 3) Materially false or inaccurate statements or information in the application for the permit; 4) Promulgation of toxic effluent standards or prohibitions (including any schedule of compliance specified in such effluent standard or prohibition) which are established under Section 307 of the Clean Water Act, where such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any limitation for such pollutant in this permit. b) This permit, and/or certification under this permit, may be modified in whole or in part due to a change in any condition that requires either a temporary or permanent reduction or elimination of the permitted discharge, such as: 1) Promulgation of Water Quality Standards applicable to waters affected by the permitted discharge; or 2) Effluent limitations or other requirements applicable pursuant to the State Act or federal requirements; or 3) Control regulations promulgated; or 4) Other available information indicates a potential for violation of adopted Water Quality Standards or stream classifications. c) This permit, or certification under this permit, may be modified in whole or in part to include new effluent limitations and other appropriate permit conditions where data submitted pursuant to Part I indicate that such effluent limitations and permit conditions are necessary to ensure compliance with applicable water quality standards and protection of classified uses. d) At the request of the permittee, the Division may modify or inactivate certification under this permit if the following conditions are met: 1) In the case of inactivation, the permittee notifies the Division of its intent to inactivate the certification, and certifies that the site has been finally stabilized; 2) In the case of inactivation, the permittee has ceased any and all discharges to state waters and demonstrates to the Division there is no probability of further uncontrolled discharge(s) which may affect waters of the State. 3) The Division finds that the permittee has shown reasonable grounds consistent with the Federal and State statutes and regulations for such modification, amendment or inactivation; 4) Fee requirements of Section 61.15 of the Colorado Discharge Permit System Regulations have been met; and 5) Applicable requirements of public notice have been met. For small construction sites covered by a Qualifying Local Program, coverage under this permit is automatically terminated when a site has been finally stabilized. 5. Permit Violations Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit. Dischargers of stormwater associated with industrial activity, as defined in the EPA Stormwater Regulation (40 CFR 122.26(b)(14) and Section 61.3(2) of the Colorado Discharge Permit System Regulations, which do not obtain coverage under this or other Colorado general permits, or under an individual CDPS permit regulating industrial stormwater, will be in violation of the federal Clean Water Act and the Colorado Water Quality Control Act, 25-8-101, as amended. Failure to comply with CDPS permit requirements will also constitute a violation. 6. Legal Responsibilities The issuance of this permit does not convey any property or water rights in either real or personal property, or stream flows, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations. Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties established pursuant to any applicable State law or regulation under authority granted by Section 510 of the Clean Water Act. 7. Severability The provisions of this permit are severable. If any provisions of this permit, or the application of any provision of this permit to any circumstance, are held invalid, the application of such provision to other circumstances and the application of the remainder of this permit shall not be affected. 8. Renewal Application If the permittee desires to continue to discharge, a permit renewal application shall be submitted at least ninety (90) days before this permit expires. If the permittee anticipates that there will be no discharge after the expiration date of this permit, the Division should be promptly notified so that it can inactivate the certification in accordance with Part II.B.4.d. 9. Confidentiality Except for data determined to be confidential under Section 308 of the Federal Clean Water Act and Colorado Discharge Permit System Regulations, Section 61.5(4), all reports prepared in accordance with the terms of this permit shall be available for public inspection at the offices of the Division. The permittee must state what is confidential at the time of submittal. Any information relating to any secret process, method of manufacture or production, or sales or marketing data which has been declared confidential by the permittee, and which may be acquired, ascertained, or discovered, whether in any sampling investigation, emergency investigation, or otherwise, shall not be publicly disclosed by any member, officer, or employee of the Commission or the Division, but shall be kept confidential. Any person seeking to invoke the protection of this section shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full disclosure of effluent data. 10. Fees The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Failure to submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant to Section 25-8-601 et. seq., C.R.S. 1973 as amended. 11. Requiring an Individual CDPS Permit The Director may require the permittee to apply for and obtain an individual or alternate general CDPS permit if: a) The discharger is not in compliance with the conditions of this general permit; b) Conditions or standards have changed so that the discharge no longer qualifies for a general permit; or c) Data/information become available which indicate water quality standards may be violated. The permittee must be notified in writing that an application for an individual or alternate general CDPS permit is required. When an individual or alternate general CDPS penult is issued to an operator otherwise covered under this general permit, the applicability of this general permit to that operator is automatically inactivated upon the effective date of the individual or alternate general CDPS permit. APPENDIX B: BMP DETAILS BMP Drawing Index 1. Bales 2. Berm (Pad) 3. Berm (Roadside) 4. Blanket 5. Check Dam 6. Culvert 7. Ditch Out 8. Diversion Ditch 9. Fiber Roll 10. Rip Rap (culvert outlet) 11. Rip Rap (slope) 12. Sediment Basin 13. Silt Fence 14. Surface Roughening 15. V -ditch 16. Water Bar 17. Slope Drain COMPACTED SOIL ADJACENT TO BALES TO PREVENT UNDERMINING FLOW EXISTING GROUND NOTE: ANCHOR STAKE 111 I�1 APPROX. 9" MIN. L_ APPROX. 4" MIN. TYPICAL SECTION NOT TO SCALE WHEN A STRAW BALE IS NO LONGER NEEDED, AND OTHER REDUNDANT BMP'S ARE IN PLACE, THE BALE WILL BE ALLOWED TO DECOMPOSE NATURALLY OR BE BROKEN DOWN. THIS WILL BE DEALT WITH ON A CASE BY CASE BASIS, TO PREVENT ADDITIONAL DISTURBANCE CAUSED BY REMOVING THE BMP'S. BINDING WIRE OR TWINE STAKED OR ENTRENCHED STRAW BALE MINIMUM 2" X 2" (NOMINAL) WOODEN STAKES OR STANDARD STEEL POSTS OR EQUILALENT. MINIMUM OF 2 PER BALE. / \ij: i/\y/\ice\� �\\/ ' f \\, EXCAVATED TRENCH �j / //// /i/ /`//\//\/�\/�� `` APPROXIMETELY 4" DEEP / ///\\/// BY WIDTH OF BALE. ISOMETRIC VIEW NOT TO SCALE BALES STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants I 10"-20" fSLOPE -1:1 / / WELL PAD FLOW 18"-24" 1-\ \\/ INSTALLATION NOTES 1. BERM SHALL BE CONSTRUCTED OF WELL COMPACTED FILL MATERIAL. ELEVATION NOT TO SCALE SLOPE - VARIES BERM (WELL PAD) STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants . //\j \/\%j • \/j /i\//%\/�\/\\//\\\ice\•//\\/�\ \\\i\�\j, //\i\�//���/\\/\/\/ ROADSIDE BERM ROAD GRADE/ 2% TYPICAL jj/ FILL SLOPE \ zxix ROAD GRADE 2°%u TYPICAL ELEVATION NOT TO SCALE ROAD GRADE 2% TYPICAL V -DITCH ELEVATION NOT TO SCALE EXISTING VEGETATION ROADSIDE BERM FILL SLOPE `EXISTING VEGETATION NOTES: 1. ROADSIDE BERMS ARE CONSTRUCTED USING MATERIAL THAT HAS BEEN GRADED OFF OF THE ROAD SURFACE OR OUT OF THE DITCH. 2. ROADSIDE BERMS ARE INTENDED TO ASSIST WITH SLOPE RUN-ON CONTROL. 3. DIMENSIONS WILL BE DETERMINED BY THE AMOUNT OF MATERIAL AND SPACE THAT IS AVAILABLE. BERM (ROAD) STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants ,//,////\/ 1 r-) rl 1-'1 r"1 1-1 O 3A /. ice\\ice ,,\ice\. ii\ %\�i\ NOTE: REFER TO MANUFACTURERS RECOMMENDATIONS FOR PROPER BLANKET INSTALLATION. 2 BLANKET (RECP) STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants I TYPICAL SECTION ROAD FLOW AGGREGATE NOT TO SCALE TYPICAL SECTION ROAD FLOW ROCK SOCK NOT TO SCALE TYPICAL SECTION ENDS TIED QJ g=4" L=18" 1 ON FILTER FABRIC OR WIRE MESH CONSTRUCTION NOT TO SCALE INSTALLATION NOTES 1. CHECK DAMS CAN BE CONSTRUCTED USING PILED ROCK, OR BY USING ROCK CONTAINED IN WIRE MESH OR FILTER SOCKS. 2. ROCK/CHECK DAMS WILL BE HAND PLACED IN THE ROADSIDE DITCH. 3. DIMENSIONS ARE APPROXIMATE, AS FIELD CONDITIONS AND MATERIAL AVAILABILITY WILL DETERMINE ACTUAL DIMENSIONS. 4. CHECK DAMS WILL BE USED IN ROAD SIDE AND DIVERSION DITCHES WHERE THERE ISA HIGH POTENTIAL FOR SEDIMENT TRANSPORTATION. 5. CHECK DAMS WILL BE SPACED IN THE FIELD AS DETERMINED BY THE INSPECTOR. 6. CHECK DAMS USED IN ROADSIDE V -DITCHES WILL BE REMOVED IN THE WINTERTIME, DUE TO FREQUENT PLOWING OPERATIONS. CHECK DAM STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants I OVERFLOW WEIR RIPRAP SEDIMENT BASIN (WHEN NEEDED) CMP PIPE 24" MINIMUM DIAMETER 2% MINIMUM SLOPE RIPRAP ARMORED FOREBAY 2% EXISTING GROUND MIRAFI FW 404 FABRIC (OPTIONAL) 18"- WILL BE MAINTAINED WHEN SEDIMENT BUILDS UP TO THE BOTTOM OF CMP z RIPRAP NOTE: SEDIMENT BASINS ARE NOT ALWAYS USED ON THE DOWN GRADIENT SIDE OF CULVERTS. NOTE: FIELD CONDITIONS WILL DETERMINE ACTUAL DIMENSIONS. h 0 MIRAFI FW 404 FABRIC (OPTIONAL) MIRAFI FW 404 FABRIC (OPTIONAL) CMP PIPE TYPICAL SECTION NOT TO SCALE VARIES RIPRAP MIRAFI FW 404 FABRIC (OPTIONAL) OVERFLOW WEIR %ice \/\ lei NOT TO SCALE VARIES r2 2 <7" / ,rte MIRAFI FW 404 FABRIC (OPTIONAL) RIPRAP RUNDOWN AND SPILLWAY NOT TO SCALE COMPACTED BACKFILL COMPACTED GRANULAR FILL 8" MIN 36" MIN TRENCH WIDTH CMP PIPE TYPICAL PIPE BEDDING NOT TO SCALE PIPE BEDDING NOTES: 1. THE CONTRACTOR SHALL BED ALL CONDUITS USING NATIVE MATERIAL (1-1/2 INCH MINUS IS PREFERABLE). BEDDING SHALL BE CONTINUED UNTIL THE BEDDING IS FILLED TO ONE FOOT ABOVE THE TOP OF THE PIPE. 2. THE TRENCH SHALL BE EXCAVATED TO A DEPTH BELOW THE BOTTOM OF THE PIPE AS SPECIFIED IN THE STANDARD DETAIL. THE OVEREXCAVATION SHALL BE BACKFILLED WITH A CLEAN GRANULAR MATERIAL FREE FROM ORGANIC AND/OR UNSUITABLE MATERIALS. THE MATERIALS SHALL BE PLACED UNDER THE PIPE AND ON EITHER SIDE OF THE PIPE UP TO ONE FOOT ABOVE THE TOP OF THE PIPE. THE PLACING SHALL BE DONE IN A MANNER WHICH WILL ASSURE NO SEPARATION OR CHANGE IN UNIFORM GRADATION. 3. ALL BEDDING MATERIAL SHALL BE PLACED UNDER THE PIPE HAUNCHES, THEN BROUGHT UP IN SIX INCH (6") LIFTS (MAXIMUM) AND COMPACTED. CULVERT STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants ROADWAY V -DITCH (0.5% TO 20% SLOPE) FLOW FLOW �- SEDIMENT TRAP OR RIPRAP INSTALLATION NOTES 1. DIMENSIONS VARY BASED ON SITE CONDITIONS. DITCH -OUT (ROADSIDE) STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants FLOW 2 Nsz ///K/ 1 iii\i,i;\i,i,. D EXISTING GRADE D = 4" TO 6"TYP TYPICAL SECTION A NOT TO SCALE INSTALLATION NOTES: 1. DIMENSIONS ARE APPROXIMATE. FIELD CONDITIONS WILL DETERMINE ACTUAL DIMENSIONS OF STRUCTURES. 2. SECTION A IS USED WHERE VEHICLE TRAFFIC IS PRESENT. 3. SECTION B IS USED WHERE VEHICLE TRAFFIC IS NOT PRESENT. 4. A DIVERSION DITCH MAY CONTAIN OTHER BMP'S, SUCH AS CHECK DAMS, IF GRADE IS STEEP. EXISTING GRADE i/\/\/\//\//\/j\/lel\'>//\ \'> //\//�%% 1 3 3P D=6' TO 24"TYP TYPICAL SECTION B NOT TO SCALE DIVERSION DITCH STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants EXISTING GRADE -FIBER ROLL WOOD STAKE INSTALLATION NOTES 1. FIBER ROLLS WILL BE INSTALLED SO THAT SUFFICIENT CONTACT WITH THE GROUND IS MAINTAINED TO PREVENT UNDERCUTTING. 2. STAKES SHALL BE INSTALLED SIXTY (36-60") INCHES APART ALONG THE LENGTH OF THE FIBER ROLLS AND STOPPED APPROXIMATELY SIX INCHES (6") TO TWELVE INCHES (12") FROM EACH END OF THE ROLLS. 3. ADJACENT FIBER ROLLS SHALL OVERLAP AT LEAST SIX INCHES (6"). 4. THE BEDDING AREA FOR THE FIBER ROLLS SHALL BE CLEARED OF OBSTRUCTIONS INCLUDING ROCKS, CLODS, AND DEBRIS GREATER THAN ONE INCH (1") IN DIAMETER (TO THE BEST EXTENT POSSIBLE) BEFORE INSTALLATION. 5. FIBER ROLLS SHALL BE INSTALLED APPROXIMATELY PARALLEL TO THE SLOPE CONTOUR. 6. LARGE NINETEEN INCH (19") FIBER ROLLS SHALL BE INSTALLED IN THE SAME MANNER. 7. WHEN FIBER ROLL IS NO LONGER NEEDED, AND OTHER REDUNDANT BMP'S ARE IN PLACE, THE ROLL WILL BE ALLOWED TO DECOMPOSE NATURALLY OR BE BROKEN DOWN. THIS WILL BE DEALT WITH ON A CASE BY CASE BASIS, TO PREVENT ADDITIONAL DISTURBANCE CAUSED BY REMOVING THE BMP'S. FIBER ROLL STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants I —EXTEND ROCK TO THE DIAMETER OF THE CULVERT ANGULAR ROCK i alb dP PLAN NOT TO SCALE FLARED END SECTION OF CULVERT 4D PROFILE NOT TO SCALE INSTALLATION NOTES 1. DIMENSION ARE APPROXIMATE, FIELD CONDITIONS WILL DETERMINE ACTUAL DIMENSIONS RIP RAP (CULVERT OUTLET PROTECTION) STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants \�\\\/j /\ j ROCK LINED ��/\\j\>7 \ %\j/ ij/moo %�\%\� `1 \��\��\��\ 6" TYP /ice :Th y7y ; icei/iv/ REVISED: 03-24-09 BY C.H. REVISED: 01-13-10 BY M.G. RIP RAP AS SLOPE PROTECTION STORMWATER BMP DETAILS B &A Environmental C onsultants I Buys & Associates, Inc. TYPICAL STRUCTURE NOT TO SCALE FLOW DISTURBED AREA OR CHANNEL SEDIMENT STORAGE • -SETTLING DEPTH --------------- `6" TYP EARTH BERM ROCK ARMORED SPILLWAY NOT TO SCALE EARTH BERM OR POSSIBLE SPILLWAY UNDISTURBED AREA OR CHANNEL INSTALLATION NOTES: 1. SPILLWAY MAY NOT NECESSARILY BE USED. 2. STRAW BALES MAY BE INSTALLED ON DOWN GRADIENT SIDE OF STRUCTURE. 3. STRUCTURES MAY BE USED BELOW CULVERT OUTLETS, ALONG DIVERSION DITCHES, BELOW DITCH -OUTS, AND WHERE LOW POINTS ON ROADWAYS EXIST. 4. EACH SEDIMENT TRAP WILL BE SIZED ACCORDINGLY AND DESIGNED BASED ON FIELD CONDITIONS. SEDIMENT TRAP STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants 1. SET POSTS NO MORE 2. EXCAVATE A 4" X 4" (APPROXIMATE) THAN 10 FEET APART. 3. ATTACH FILTER FABRIC MATERIAL TO POSTS OR SEWN POCKETS OVER POSTS AND EXTEND IT INTO THE TRENCH. TRENCH ALONG THE LINE OF UPRIGHT POSTS. FILTER FABRIC ATTACHED COMPACTED SOIL FLOW APPROXIMATE 4"X4"TRENCH FENCE POCKET WOODEN OR STEEL FENCE POSTS 12' MIN INSTALLATION NOTES 1. SILT FENCE SHALL BE INSTALLED APPROXIMATELY PARALLEL TO THE SLOPE CONTOUR. 2, REINFORCED SILT FENCE (OPTIONAL) WILL CONSIST OFA WIRE BACKING BETWEEN FENCE POSTS AND FILTER FABRIC. SILT FENCE STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultant s AVERAGE FINISHED GRADE INSTALLATION NOTES: 1. DISTURBED SURFACES SHALL BE ROUGHENED USING RIPPING OR TILLING EQUIPMENT ON THE CONTOURS OR TRACKING UP AND DOWN THE SLOPE USING EQUIPMENT TREADS. FURROWS 2" TO 4" DEEP PARALLEL TO CONTOURS SURFACE ROUGHENING STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants �\ CUT SLOPE /\/\\\/\\\ MAX 1 CROSS SLOPE 1%-3% FLOW 1 ' MA7 /\\/\\ \\ \\ \\ \\/\\\/\\\ ,•, \ \ >i 1 \��/j / \/ j\\\�//\//\//\/<\// / STORAGE AREA INSTALLATION NOTES 1. DIMENSIONS ARE APPROXIMATE. FIELD CONDITIONS WILL DETERMINE ACTUAL DIMENSIONS OF STRUCTURES. V -DITCH STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants ACCESS ROAD MACHINE CUT TRENCH INSTALLATION NOTES: 1. THE OUTLET SHALL BE LOCATED ON AN UNDISTURBED AREA OR V -DITCH. FIELD SPACING WILL BE ADJUSTED TO USE THE MOST STABLE OUTLET AREAS. 2. WATER BARS WILL BE INSTALLED AND MAINTAINED AS NEEDED. 3. FIELD CONDITIONS WILL DETERMINE ACTUAL DIMENSIONS. ,ow REVISED: 03-19-09 BY C.H. WATER BAR REVISED: 01-13-10 BY M.G. REVISED: 04-30-10 BY M.G. STORMWATER BMP DETAILS B&A Buys & Associates, Inc. Environmental Consultants Slope Drain Specification Construction Specifications The slope drain shall be sized according to the run-off volume pressure from the collection area: Below is a reference table that will be used to properly size areas of one acre and larger. For areas of less than one acre, a drain size shall be established in correlation with the size and slope of the stormwater receiving area. Maximum DrainageArea Minimum Pipe Diameter Per Pipe (Acres) (Inches) 1.0 12 2 15 3 18 1. The minimum desirable physical slope of the drain shall be 0.5%, or the slope that will produce a velocity of 2.5 feet per second (ft/s) when the drain is flowing full, whichever is greater. 2. The top of the earth dike over the inlet pipe, and those dikes carrying water to the pipe, shall be at least one (1) foot higher at all points than the top of the inlet pipe. 3. The slope drain shall be installed perpendicular to slope contours. 4. Corrugated plastic pipe or equivalent shall be used with watertight connecting bands. 5. The soil around and under the pipe and end section shall be hand tamped in lifts to the top of the earth dike. 6. Where flexible tubing is used, it shall be the same diameter as the inlet pipe and shall be constructed of a durable material with hold down devices spaced 10 feet on center. 7. The flexible tubing shall be securely fastened to the corrugated plastic pipe with metal strapping or watertight connecting collars. 8. The flexible tubing shall be securely anchored to the slope by staking. 9. Where a pipe slope drain outlets into a sediment trapping device, it shall discharge at the riser crest or weir elevation. 10. A riprap apron shall be used below the pipe outlet where clean water is being discharged into a stabilized area or natural drainage. 11. Inspection and any needed maintenance shall be performed after each storm event causing sediment erosion or movement. Stabilized outlet Hold-down stakes Diversion -4 4' min dike Island /over inlet 3:1 j 1.5' min V 10' spacing • • llI illi —1! 11 Iii►-�I(Ij— ►I= 1111={Iilll`►Iiu.=.�llll�flfl�a li i iI �IIIIN-=11111�ii►111hliljll �lli�;1� Plastic corrugated pipe II111111 .77 IIr=llfil-(Illi= I. 4' min .I level section Top of diversion Natural A Srourrl y 1' min Illi---IsiIIon Illll Diveravrflei 4' min 1.5' min Top of hand -compacted fiU 7".'y(island)— Figure 7. Cross-section of temporary slope drain and detail of inlet. (Source: Ref. 1) UNEP: Guidelines for Sediment Control Practices APPENDIX C: SEED MIXTURE B&A I�uvs & Associates, Inc. Environmental Consultants April 20, 2009 Ms. Adell Heneghan HES Professional Marathon Oil Company 743 Horizon Ct. Suite 220 Grand Junction, Colorado 81506 300 E. Mineral Ave., Suite 10 Littleton, Colorado 80122-2655 303/781-8211 303/781-1167 Fax Re: Seed Mixtures for Reclamation Activities in Areas North Of Parachute, Colorado Ms. Heneghan, Marathon Oil Company (MOC) requested that Buys and Associates, Inc. (B&A) compile a list of seed mixes that could be used in revegetation efforts in Piceance area, Colorado. The following draft seed mixes were prepared to fulfill MOCs request. The seed mixes were compiled based on the elevation ranges, soil types, and vegetation communities that are found in the aforementioned area. Per MOCs request, forbs and shrubs were, for the most part, not included in the mixes, to increase the ease of seeding and to aid in future weed management in the reclamation areas. Included is a seed mix that can be utilized in interim reclamation areas. This short-term mixture was designed for quick vegetation growth, which in turn will assist in reducing weed invasion and soil erosion. Except for the interim seed mix, the plant species included in the seed mixes are grass species that are growing in the area, or are species native to Colorado and adapted for conditions that exist in the area. These seed mixes do not constitute a complete reclamation plan. They require further clarification on optimal seeding depths, and seeding techniques. Optimal seeding times for these seed mixes are fall and spring (before freeze in the fall mid August to mid September, and in the spring after thaw and no later than June 1st) Please let either myself, or John A. Jehn know if you have any questions, and how we could further assist you in your reclamation planning and application needs. Sincerely, Karin McShea Biologist Buys & Associates, Inc. Table 1. Interim Seed Mix Hi her and Middle Elevation Areas Common Name Scientific Name Variety 1,2 PLS lbs/acre GRASSES Wheat x Tall Wheatgrass Triticum aestivum x Elytrigia elongata Regreen3 12.0 Mountain Brome Bromus marginatus Garnet, Bromar 7.0 Slender Wheatgrass Agropyron trachyeaulum San Luis 4.0 FORBS Utah sweetvetch Hedysarton boreale Timp 2.0 Pure Live Seed Total 25 PLS Rate numbers are in Pure Live Seed (PLS). 2 Seed rates are specific to the drill seeder method. If broadcasting or hydromulching is used to disperse the seed, the seed rates above should be doubled. 3 Based on a 3 PLS per square foot for Regreen. Table 2. Seed Mix for Higher Elevation - Sagebrush Areas. Common Name Scientific Name Variety PLS Ws/acre 2 Slender Wheatgrass Mountain Brome tra .Itycaulton BrOMUS mar ,matus San Luis Gamet, Bromar Letterman Neddlegrass Idaho fescue Stipa letterman:: Festuca idahoenvis Bluebunch wheatgrass Sandberg Bluegrass Pure Live Seed Total Rate numbers are in Pure Live Seed (PLS). 2 Seed rates are specific to the drill seeder method. If broadcasting or hydromulching is used to disperse the seed, the seed rates above should be doubled. Agrtmyron Apkatum Pou sandhergii VNS Garnet, Bromar Joseph, Nezpurs 3.5 3.0 2.0 1.5 1.5 N/A 1.5 13 PLS Table 3. Seed Mix for Hi her Elevation — Gamble's Oak and As en Areas. Common Name Scientific Name Variety PLS lin/acre 1 2 Nodding Brome Bromus anomalous. VNS 1.5 Slender Wheatgrass Igropyron truchycaulum San Luis 2.5 Thickspike Wheatgrass Llymus latueolalus ssp, lanceolatus Critana 2.5 Bluebunch Wheatgrass Agropyron spicinum Joseph, Nezpurs 2.0 Letterman Neddle rass Stipa lettermanii VNS 2.0 Mountain Brome Bromus marginality Garnet, Bromar 1.5 Pure Live Seed Total 13 PLS Rate numbers are in Pure Live Seed (PLS). 2 Seed rates are specific to the drill seeder method. If broadcasting or hydromulching is used to disperse the seed, the seed rates above should be doubled. Table 4. Seed Mix for Middle Elevations — Steeper Slopes Common Name Scientific Name Variety PLS lbs/acre l'2 [ Indian Ricegrass Oryzopsis hymenoides Nezpar, Rimrock 2.5 Bottlebrush Squirreltail Elymus elymoides VNS 2.5 Thickspike wheatgrass Elymus lanceolatus ssp. lanceolatus Critana 2.5 Bluebunch wheatgrass Agropyron spicatum Joseph, Nezpurs 2.5 Common Name Scientific Name Variety PLS lbs/acre 1,2 Slender Wheatgrass Agropyron trachycaulum San Luis 2.0 Western Wheatgrass Agropyron smithii Arriba, Rosana 1.0 Pure Live Seed Total 13 PLS Rate numbers are in Pure Live Seed (PLS). 2 Seed rates are specific to the drill seeder method. If broadcasting or hydromulching is used to disperse the seed, the seed rates above should be doubled. Table 5. Seed Mix for Lower Elevations Common Name_ Scientific Name Western Wheatgrass Bluebunch Wheatgrass Basin Wild -rye Alkali Sacaton Canb Blueerass Pure Live Seed Total Rate numbers are in Pure Live Seed (PLS). 2 Seed rates are specific to the drill seeder method. If broadcasting or hydromulching is used to disperse the seed, the seed rates above should be doubled. i1 'opyron smithii r1grophron vicuna?) /. '?nus cinercus S/n)r hohcs air'oides Poo canhvi Variety Arriba; Rosana Joseph, Nezpurs Mattnar Alkali Sacaton PLS lbs/acre 4.5 3,5 2.0 Canhar 0.1 0.5 10.6 PLS Sources and References Bureau of Land Management (BLM). 2008. Revisions to BLM Energy Office Revegetation Requirements. Glenwood Springs Energy Office. Glenwood Springs, Colorado. May 1, 2008. Colorado Natural Areas Program (CNAP). 1998. Native Plant Revegetation Guide for Colorado. Caring For the Land Series, Volume III. October 1998. Available at: http://parks.state.co.us/NaturalResources/CNAP/Publications/ Pawnee Buttes Seed, Inc. 2002. Guide to Grasses. March 2002. Available at: http://www.pawneebuttesseed.com/index.htm. WestWater Engineering. 2006. North Parachute Ranch (NPR) Reclamation Plan. Prepared for Encana Oil and Gas (USA), Inc. May 2006. Whitesides, R.E., Horton, H., Jensen, K., and R. Reed. 2001. Intermountain Planting Guide. USDA - ARS -Forage and Range Research Lab, Logan, Utah, in conjunction with Utah State University Extension. Jan 2001. Available from: http://extension.usu.edu/htm/publications/publication=8056. B&A Buys & Associates, Inc. Environmental Consultants April 20, 2009 Ms. Adell Heneghan HES Professional Marathon Oil Company 743 Horizon Ct. Suite 220 Grand Junction, Colorado 81506 300 E. Mineral Ave., Suite 10 Littleton, Colorado 80122-2655 303/781-8211 303/781-1167 Fax Re: Seed Mixtures for Reclamation Activities in Areas North Of Parachute, Colorado Ms. Heneghan, Marathon Oil Company (MOC) requested that Buys and Associates, Inc. (B&A) compile a list of seed mixes that could be used in revegetation efforts in Piceance area, Colorado. The following draft seed mixes were prepared to fulfill MOCs request. The seed mixes were compiled based on the elevation ranges, soil types, and vegetation communities that are found in the aforementioned area. Per MOCs request, forbs and shrubs were, for the most part, not included in the mixes, to increase the ease of seeding and to aid in future weed management in the reclamation areas. Included is a seed mix that can be utilized in interim reclamation areas. This short-term mixture was designed for quick vegetation growth, which in tum will assist in reducing weed invasion and soil erosion. Except for the interim seed mix, the plant species included in the seed mixes are grass species that are growing in the area, or are species native to Colorado and adapted for conditions that exist in the area. These seed mixes do not constitute a complete reclamation plan. They require further clarification on optimal seeding depths, and seeding techniques. Optimal seeding times for these seed mixes are fall and spring (before freeze in the fall mid August to mid September, and in the spring after thaw and no later than June 1St) Please let either myself, or John A. Jelin know if you have any questions, and how we could further assist you in your reclamation planning and application needs. Sincerely, Karin McShea Biologist Buys & Associates, Inc. Cascade Creek Approved Seed Mixtures Colorado Land Cover Classification Systems Table 3 Low -Elevation Salt -Desert Scrub/Basin Big Sagebrush Common Name Scientific Name Form lbPLS s/acre* Fourwing Saltbush Atriplex canescens Shrub 1.9 Shadscale Atriplex confertifolia Shrub 1.5 Galleta Pleuraphis [Hilaria] jamesii Bunch 2.5 Alkali Sacaton Sporobolus airoides Bunch 0.2 Streambank Wheatgrass Elymus lanceolatus ssp. psammophilus, Agropyron riparium Sod- forming 2.5 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Poa sandbergii (Poa secunda) Bunch Bunch 1.8 0.3 Sandberg Bluegrass *Based on 45 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (90 PLS per square foot) if broadcast or hydroseeded. Pinyon -Juniper Woodland, Mountain/Wyoming Big Sagebrush Shrubland Common Name Scientific Name Form lbs/ate e* Indian Ricegrass Achnatherum (Oryzopsis] hymenoides Bunch 1.9 Galleta Pleuraphis (Hilaria] jamesii Bunch 2.5 Bluebunch Wheatgrass Pseudoroegneria spicata, Agropyron spicatum Bunch 2.8 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Bunch 3.3 Muttongrass Poa fendleriana Bunch 0.6 Sandberg Bluegrass Poa sandbergii, Poa secunda Bunch 0.6 *Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast or hydroseeded. Cascade Creek Approved Seed Mixtures Colorado Land Cover Classification Systems (continued) Table 3 Mixed Mountain Shrubland, Including Oakbrush Common Name Scientific Names Form PLS lbs/acre* Thickspike Wheatgrass Elymus lanceolatus ssp. lanceolatus, Agropyron dasystachyum Sod- forming 3.4 Bluebunch Wheatgrass Pseudoroegneria spicata, Agropyron spicatum Bunch 3.7 Bottlebrush Squirreltail Elymus elymoides, Sitanion hystrix Bunch 2.7 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Bunch 3.3 Canby Bluegrass Poa canbyi, P. secunda Bunch 0.6 Mutton Bluegrass Poa fendleriana Bunch 0.6 Letterman Needlegrass Achnatherum [Stipa] lettermanii Bunch 1.7 Columbia Needlegrass Achnatherum [Stipa] nelsonii, Stipa Columbiana Bunch 1.7 Indian Ricegrass Achnatherum [Oryzopsis] hymenoides Bunch 1.9 Junegrass Koeleria macrantha, K. cristata Bunch 0.1 *Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast or hydroseeded. Common Name Mountain Brome Spruce -Fir Forest, Including Mountain Meadows Scientific Names Ft) PLS lbs/acre* Bromopsis [Bromus] marginatus Bunch 5.8 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Bunch 3.3 Letterman Needlegrass Achnatherum [Stipa] lettermanii Bunch 3.5 Blue Wildrye Elymus glaucus Bunch 4.8 Thickspike Wheatgrass Elymus lanceolatus ssp. lanceolatus, Agropyron dasystachyum Sod- forming Bunch 3.4 1.2 Idaho Fescue Festuca idahoensis Wheeler Bluegrass Poa nervosa Sod- forming 0.6 *Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast or hydroseeded r Approved Seed Mixture Mixture/Variety Pure Mountain Brome, Bromar 17.35 Russian Wild Rye, Boziosky 17.12 Orchardgrass, Paiute 16.84 Intermediate Wheatgrass, Oahe 16.45 Regreen 404 14.70 Crested Wheatgrass, Hycrest 7.25 Pubescent Wheatgrass, Luna 7.14 r APPENDIX D: TRAINING RECORDS Course Title: Course Code: Class Date: Class Start Time: Marathon Oil Corporation VTA Sign-up Sheet * Aw c Art55 /117X -em o, o 10-1(.76// c7;oo Location (Work Area): Marathon End Time: 0a30 'Pr„, c- k Co Room: Instructor Name: If non -Marathon, Training Provider Company: Credit Hours: Employee ID# Name (Please Print CLEARLY) 02-0r( Fns (Niqi di C5Y251 GW- /if sm/ /v/iiw 6-2creral 423915 7gtp. -172(31 8o,,5(245 f /S 6 /O 2C 7/o/ I102-; 1kt/t IAN, FI-reANr4hrCK% 1141v,/,--, (Lk( ( R[& A -x) 0( reJ Ric('-IAp0 y 81101 7 A/4"1i/8110137) CPyr_ So5 1-\, 11 6E74/11) u r -ck ies Hebs- Signature Signature: Session No: H bs VAI If Contractor, Company Name Ale C._ Ainc Mac `tt a c t41/14:2-id * Please complete a separate Sign-up Sheet for each class held. /AOS e. Course Title: Course Code: Class Date: M Marathon MARMON ,Oil Corporation VTA Sign-up Sheet * / Class Start Time: 0 -7; y^J Location (Work Area): End Time: (�Yj3D Marathon Employee ID# Name (Please Print CLEARLY) II fit- o. }ts� S V• . r Art r-,4 0/; Q9 Si UC .Sc r4 2ArA..A, Moc)d Sdnry)c,!-Is `47 4f/ �yrt,PU2aty rv\ ;15'1 -J 413 2 ( A 141653 HATt 5w.,}4EAtac \LzA\1 \L.. hr. / _ e4-741 Room: Instructor Name: If non -Marathon, Training Provider Company: Credit Hours: Signature: Session No: :Z741 2 l r S f( , 0G -s -UQ-z W/b/y z r ✓ 77/744-t( 3‘)/y),)-, //lefty i/r) ,,�1 r) / ea If Contractor, Company Name /Y).±.3 :zd- cir +� 4413 int 16 +r✓C+.b-, ego /r,Y)(i&7 r C6. + f\)", -/494,s c--(05 * Please complete a separate Sign-up Stet for each class held. s••S m wde,-Mw athhonon ► Mar MARATHON ®Oil Corporation °' rfe.'"01i°, VTA Sign-up Sheet * Sean Name: ^)4h Q �s Course Title: Course Code: Class Date: Class Start Time: ti ES iree,-(;Ac 1 fo eeS <=.,,u6.41= y 313o/to 3 Location (Work Area):DCG End Time: Ca 44' t Ce- d kI If non -Marathon, Training Provider Company: Credit Hours: Room: Marathon Employee ID# Name (Please Print CLEARLY) Signature ALINZIP Rsce-36 005+;I4 vwli-► scfn vo 7 b - Signature: Session No: v agws f `i r �7644A' 5p%t- 3al�a �- lefruy M c Ettrkein S4LYERs lilez74ap45 i 3 ( l ren i4�Day /11//27( .3e LTStn1kt i' hof y C., Lap/ go, 3,112zouz If Contractor, Company Name MCP__ iNs-oks- 48 7)1/1 ,7 CiOny The-171- wk8 Go,r4, V146 giwektirS BS s LJ H$ / * Please complete a separate Sign-up Sheet for each class held. Course Title: Course Code: C\ Marathon MARATHON .0i1Corporation VTA Sign-up Sheet * Class Date: Class Start Time: Location (Work Area): Marathon Employee ID# End Time: Name (Please Print CLEARLY) DeREIC VEAzrkr ry C 0r -c Room: /111 �c IMo4 -niebet4vt 1:e .� ©IwiINy_ -.eQc-c. /'f1(. I q 44-etr.e A W -em X511 A,✓i01�� r crd &o&IX -\ Henn dao 64-4,14! 7(yg2. CtIALoh X 13 Instructor Name: If non -Marathon, Training Provider Company: Credit Hours: Signature Signature: Session No: If Contractor, Company Name aeirc 44±3 VIA skAir deism /97$ /14 Dc Sys * Please complete a separate Sign-up Sheet for each class held. Course Title: Course Code: Class Date: Mi Marathon MARATHON Oil corporation VTA Sign-up Sheet * :3 J( Zc.9C-Q Class Start Time: 150 CSLnd Time: Location (Work Area): Marathon Employee ID# 3 ,Z9l/ Name (Please Print CLEARLY) 3c? M A- 5 Iti 1N2-41 12041K I -4T II r« -o /)9 Go wZ rg-z r) OrccJ eis bteSteer369a ( Ca.kk, ‘44 - Oh \r VQJ LJ e Sekt.‘,.-41.- re.e4y pe<s.gcts? Mil- '.5eeel ihJbea1J 015 -1 t L.d readC) Room: Instructor Name: If non -Marathon, Training Provider Company: Credit Hours: Signature: Session No: If Contractor, Company Name T 3 Ys /12 P -7— A& 023 * Please complete a separate Sign-up Sheet for each class held. h'1 i'cice30Vf Course Title: Course Code: MARATHON Marathon ®Oil Corporation VTA Sign-up Sheet * Class Date: Class Start Time: Location (Work Area): Marathon Employee ID# End Time: Name (Please Print CLEARLY) Room: G ks b -42. r' - ,ver, Instructor Name: If non -Marathon, Training Provider Company: Credit Hours: Signature Signature: Session No: f�. GS r 5et4,LAA /4- 4/4, pc) ,.), S. -d G� 74; /00647 144- 6()e.5..,t/ c w S "�GLI� `ham ....i �C'•� airib If Contractor, Company Name 3r-aee6 %%?d 19v+I) 6l;p S3Z58 73;X.C- etlitY1 on s 01'46 1st PS o by Q� (a‘vtt az * Please complete a separate Sign-up Sheet for each class held. ,Jc Can s-4-. 62_k . S. gc Poict (-1 cPt. Course Title: er Course Code: Class Date: Class Start Time: Location (Work Area): End Time: Ma moron Sign-up Sheet * Marathon Employee ID# Name (Please Print CLEARLY) /OU (p ft -7 Room: of vi4 s(,Gc_ -r/ A- LD sL re, /2 i( WI MM) 4c/L /fiboct ; ,4, �lor,,,„.),; ��\•.< fli/vi"( ,Lr 5 1— Ad re. t C JC. f • `fir ,t 3 Cifb 4 y/,, ZfEel L<, <Fai1A/V- 111011 * Please complete a separate /7/4//e_0/,--/ Instructor Name: If non -Marathon, Training Provider Company: Credit Hours: Signature: Session No: John If Contractor, Company Name 6 -`moi' crisp 5 I iA Lis (4,1-4`; C-4 C 1.U(L.41,111 1/ ...., P Sheet i:4" -each class held. Course Title: ----I.( pcvnl.0(1/1-e_r Course Code: Class Date: Class Start Time: Location (Work Area): (Q.1, Qooc End Time: ( ) '4; Corporation Sign-up Sheet * Marathon Employee ID# e (Please Print,CLEARLY) J' m \.,P-L'-or\._ YY1.6-rem-i r Room: eh-) IS' I' %k() / Ctrs (/07A/ /(tro-ri`e, ToPmvy (_l- Nws «S 4'4ut ,, eArkpkovi, s/667,/ qi\CA)\ Instructor Name: ehn _ 0 n If non -Marathon, Training Provider Company: Credit Hours: Signature: Session No: If Contractor, Company Name ki( vvyThrtroc- iv/164y / /4106 K /f 0 S ( 4/4X5 A V a * Please complete a separate Sign-up Sheet for each class held. (-)r' /77Z(7 -(1-,i6-7 /.2ce-/-• geq, r -5(4 Se' < A c. 6 Course Title: < Course Code: Class Date: e fl aocf? Class Start Time: End Time: Location (Work Area): Marathon Employee ID# /7.---) Marathon \L -L,•-• Oil Corporation Sign-up Sheet * Name (Please Print CLEARLY) Room: e if/ v , k„„,) t: ),", 1/1/!Ail 1P,1,12c(j_c Instructor Name: If non -Marathon, Training Provider Company: Credit Hours: Signature Signature: Session No: — 7' • i Ic‘ LAv 'CY N at/eery/ If Contractor, Company Name 4 T (7. reodr I-1 /,;L/ _ cc (A ef tr. re_2 P/OZ 11Th 1- (6? / 779 177 V :// ) ry-1 1 yS 12_ 7277/-- V 1 4C))-.1 ?(' ,----7/ -77--------- * Please complete a,seRarate Sign-up Sheet for each class A file /lc(' Employee Training Log STORMWATER MANAGEMENT PLAN FOR MARATHON OIL CO. PUMPING FACILITY Employee Name Signature Date Trainer Carrie Gudorf 8/2008 APPENDIX E: INACTIVATION FORMS Colorado Department of Public Health & Environment FOR ACENC1' USE; ONLY Water Quality Control Division WQCD-P-132 REC 4300 Cherry Creek Drive South EFF Denver, Colorado 80246-1530 YEAR MONTH DAY Amendment notice for Oil and Gas Construction Field Permit Certification CONSTRUCTION ST()RMWATER DISCk1ARGC GENERAL PERMIT CERTIFICATION Please t,iatit li``Npt. ort must be filled but completely. Certifiention plumber: COR -03 C052 relntittet (Company) game: Marathon ail Corporation Permittee Address: 743 Horizon Court Suite 220 Grand Junction, CO 81506 Phone No. 970-245-5233 Yield Permit Certification Information (refer to your permit certification): Field Permit Site/Facility Name: Piceance Area/ Tower 1 County(s): Garfield contact Person: Melissa Velasquez Contact Person Phone No.: 970-244-5743 Contact Person Email: mrvalaaquez@marolhonoll,com Information un Area to be Excluded frown Permit Coveraee: Site Map: Must include Site Man indicating the boundaries of the area to be excluded from permit coverage. Refer to the Site Map Instructions on page ii of this form. Maps must be folded to 8'A x 1I inches. Map enclosed? YeCI Non Summary of work performed tint] description of final stabilization for the area shown in the attached map: Tha elle has been slebtized end a unlrorm vegetative cover has been ealetagehed with an Individual plant density eat least 70% or pre -disturbance tmvcls, All temporary erosion and sediment control devices have been removed and no further construction activities will take place. 1 certify under penalty of law that by the dale of my signature below, at the identified construction site area, all disturbed soils have been finally stabilized; all temporary erosion and sediment control measures have been removed; all construction and equipment maintenance wastes have been disposed of properly; and all elements of the Starmwater Management Plnn have been completed. understand that by submitting this notice or atnendtntnl,1 am no longer authorized to discharge stormwater associated with construction activity by the general permit, fur this specific area. I understand that discharging pollutants in stormwater associated with construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act. 1 certify under penalty of law that 1 have personally examined and am familiar with the information submitted herein, and based on my inquiry of those individuals inunediately responsible for obtaining the information, I believe that the information is true, accurate end complete, I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment. (S c I d U.S.C: 1001 and 33 U.S.C. 13 NN.) (((r((7,ol'r Signature of Permit Applicant (Legally Responsible Party) OiJf Name (printed) 12l08/0Gcoveragcamend Date Signed p a- (-4,1-4-5 SLf er Title Marathon Oil Corporation, Piceance Area Permit COR -03C052 Tower 1 Inactivation Map October 14, 2011 Explanation Radia Tower = Access Road Area of Proposed Inactivation :2,750 InterTech �druc e.�s_ti.._Snunvw RECEIVING Vo-kTERS- UNNAMED TRIBUTARY TO GARDEN GULCH 2000 FEET NORTHWEST UNNAMED TRIBUTARY TO PARACHUTE CREEK 2600 I• tt t SOUTH GARDEN GULCH ROA TO UPPER GUARD SHACK—<, • / TO PAD 697-13C otsvao TOWER 1 I 4. 4 tom` TOP SOIL PILE TOWER & PAD LEGS .J CONSTRUCTION SITE BOUNDARY AND LIMITS OF DISTURBANCE (3.5 ACRESI AREA OF CUT AREA OF FLL CULVERT V-0RCH Yu1TH CHECK DAM WATER BAR FIBER ROLL SILT FENCE SEDIMENT BASIN NOTPRESENT ASPHALT OR CONCRETE BATCH PLANTS COMP EiJTS CHECK DAMS TO BE REMOVED DURING WINTER. WATER BARS WILL BE INSTALLED AND MAINTAINED AS NEEDED. PROJECT LOCATION GARFIELD COUNTY MAP INDEX OVERVIEW ACCESS ROAD TO TOWER 1 APPROXIMATE ROAD LENGTH = 1.120 LF MARATHON OIL COMPANY REVISED BY COMMENT 12/9.09 M.G. BMP'S ADDED PER D.V, 01!27;10 MG. ROAD LENGTH ADDED PER D V, 031'31;10 M.G. BMP'S REVISED PER D.V. 0403110 M.G. MPS REVISED PER D.V. OE102110 M.G. MAP'S REVISED PER D.V. !NTERTECH EBBE Colorado Department of Public Health & Environment FOR AGENCY USE ONLY Water Quality Control Division WQCD-P-B2 REC 4300 Cherry Creek Drive South IPP Denver, Colorado 80246-1530 YEAR MONTH DAY Amendment notice for Oil and Gas Construction Field Permit Certification CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION Please print or type:I ono n it 11e fillets out completely: Certification Number: COR -0.3 C052 Permiltee (Company) Name; Marathon Oil Corporation Pet7ttiklce Address: 743 Horizon Court Suite 220 Grand Junction, CO 81506 Phone No, 970-245-5233 Field Permit Certification Information (refer to your permit certification): Field Permit Site/Facility Name: Piceance Area/ Tower 3 County(s): Garfield Cataract Person: Melissa Velasquez Contact Person Phone No.: 970 -244 - Contact Person Email: mrvelasquez[a)maraihonoil.com Information on Area to be Excluded from Pcrrnit Coverage: Site Map: Must include Site Matt indicating the boundaries of the area to he excluded from permit coverage. Refer to the Site Map Instructions on page ii of this form. Maps must he folded to 8% x 11 inches. Mnp enclosed? Yeg Non Summary of work performed and description of final stabilization for the area shown in the attached map: The bile has been nieblized and a uniform Vegetative sower has been esloh'ished with nn individual giant density of at feast 70% of pre -disturbance levels. All temporary erosion end sediment control devices have been removed and no Further construction activities will take place. I certify under penalty of taw that by the date of my signature below, al tate identified construction site area, all disturbed soils have been finally stabilized, all temporary erosion and sediment control measures have been removed; all construction and equipment maintenance wastes have been disposed of properly; and all elements of the Siormwnter Management Plan have been completed. I understand that by submitting this notice of amendment, t Asn no longer authorized to discharge storruwatcr associated with construction activity by the general permit, for this specific area. I understand that discharging pollutants in stormwatcr associated with construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act, 1 certify under penalty pilaw Mail have personally examined and am familiar with the information subrnitted herein, and based on my inquiry of those individuals immediately responsible for obtaining the information, 1 believe that the information is true, accurate and complete. 1 am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment. (See 18 U.S.0 1001 and 33 U.S.C. 1319,) P/61 -1C t), ( ( Signature of ]7unit it Applicant (Legally Responsible Party) Dale Signed n- f.Wa.r n'a-64.5fil,1".5 Sap ort'lie. CPer.+ Nance (printed) Title 12/08l0Gcoveraagen ancnd itio7 Marathon Oil Corporation. Piceance Area Permit COR -03C052 Tower 3 Inactivation Map October 14, 20111 Explanation • Radio Tower = Access Rodd Area of Proposed Inactivation InterTech 1:2,750 loneralOtmeaoube RECEIVING WATERS McKAY GULCH 1000 EAST UNNAMED TRIBUTARY TO EAST FORK 3000 FEET SOUTH RESPECTIVELY UNNAMED TRIBUTARY TO EAST FORK 1600 FEET WEST / r OXY WELL SITE rZ / r / EXISTING ROAD ACROSS- j OXY PAD SITE II TOWER AND PAD SOLAR PANEL 0 0 0 • r LEGtivD CONSTRUCTION SITE BOUNDARY AND LIMITS OF DISTURBANCE (0.21 ACRES) CUT FILL FIBER ROLL FENCE NOTPRESENT ASPHALT BATCH PLANTS COMMENTS. PROJECT LOCATION GARFIELD COUNTY MAP INDEX OVERVIEW PAD SITE TOWER 3 TOTAL DISTURBED AREA = NO INFO MARATHON OIL COMPANY REVISED BY: COMMENT: 11123,04 M.G. DRAWING CREATED 05/20/10 M.G. BMP'S REVISED PER D.V. Colorado Department of Public Health & Environment FOR AGENCY USF: ONLY Water Quality Control Division WQCD-P-B2 RUC 4300 Cherry Creek Drive South IFF Denver, Colorado 80246-1530 YEAR MONTH DAY Amendment notice for Oil and Gas Construction Field Permit Certification CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION Please nririt or type. Forn, must be filled out completely - Certification Number: COR -03 C052 Permittee (Company) Narne: Marathon Oil Corporation Permittee Address; 743 Horizon Court Suite 220 Grand Junction, CO 81506 ?bane No. 970-245-5233 Gleld Permit Certification Information (refer to your permit certification): Field Perrnit Site/Facility blame: Piceance Area/ Tower 4 Ccaunty(s): Garfield Contact Person: Melissa Velasquez Contact Person Phone No.: 970-24 -574 Contact Person Email: mrvel asquez@marathanoll.com Information on Area to be Excluded from Permit Coverage: Site Map: Must include Site Man indicating the boundaries of the area to be excluded from permit coverage. Refer to the Site Map Instructions on page fi of this form, Maps must be folded to 8'/1 x 11 inches. Map enclosed? YeLl Non Summary of work performed and description of final stabilization for the area shown in the attached nuip: The site has been steblized and a uniform vegetative cover has been estabtishod with an Individual plant density of at least 70% of pre-dislurhance levels. All temporary erosion and sediment control devices have been removed and no further construction activities will lake place. certify under penalty of law that by the dote of nay signature below, at the Identified construction site area, al1 disturbed soils have been finally stabilized; all temporary erosion and sediment control measures have been removed; all construction and equipment maintenance wastes have been disposed of properly; and all elcincatts of the Storinwater Management Plan have been completed, I understand that by submitting this notice of amendment, I am no longer authorized to discharge stormwater associated with construction activity by the general permit, for this specific area. l understand that discharging pollutants in stormwater associated with construction activities to the waters of tine State of Colorado, where such discharges tire not authorized by a CDPS permit, is unlawful tinder the Colorado Water Quality Control Act and the Clean Water Act. 1 certify under penalty of law that 1 have pei onnily examined and am familiar with tlic information submitted herein, and based on my inquiry of Inose individuals immediately responsible for obtaining the information, I believe that the information is true, accurate and complete. 1 am aware that there are significant penalties for submitting false infornttttion, including the possibility of line and intprisontnent. (See 18 U.S.0 1001 and 33 U.S.C. 1319.) j4L7 Q Signature of Permit Applicant (Legally Responsible Party) i e. wa rd' Name (printed) 12/081OGcovcragen mend (f /RP tall f)atc Signed ()1,12,(4.40n5 Title tr 44,,dent 7.. • • • • • 77 .1 • • • A 41 - • • *r • Stet 1 II0 1r 1VI r 1 • .0 AP ; • 11. a, rit Ik44, t '1"4t'V V * 1 k" •• • 104, if 1341- iN•Lc ' ` • . 4 • ; t • ' f ir • . .1 14. '-`4, k _ 4 11.41,,14 *t. as 11 •I., 7 4,:47 , vitt..4. act .; 2,4t .1‘ N., • s. I • ' VI, ,17;,,A.V.I.f,,,%it,e;11.--• • - A a , ll ')•l * Sri 5.116.4.•\"4.) 4.1711, .4. • f$,;;z. 1161.4iNlY v " *,‘ • • "r, .6„ • 1. , Tower 4 sS9 • fiA,g Marathon Oil Corporation Piceance Area Permit COR -03C052 Tower 4 Inactivation Map October 14, 2011 Explanation Radio Tower Access Road Area of Proposed Inactwation 12.750 tear,,LE ,901.11M( MOMS, 1•••••1_,.•*14 RECEIVING WATERS: UNNAMED TRIBUTARY TO GARDEN G1LCk4 260a FEET SOUTHEAST SHEEP KILL GULCH 900 FEET NORTH r ACCESS ROAD TO PAD 596-35D .' ' `1, 0i A , ACCESS ROAD -'��r • i' PR ANE TOWS` •• (. &PAD ) EDS '.J `` , ... '....- \ ^tet' TO GARDEN GULCH "``� _,.-/►�� EXTENSION ROAD TOWER 4 LEGEND CONSTRUCTION SITE BOUNDARY AND OMITS OF DISTUREANCE (52 ACRES) AREA DF CUT A RE4 OF FILL FIBt ROLL moo- FENCF_ NOT PRESENT ASPHALT OR CONDI? ETE HATCH PLANTS COMMENTS' CCSTURBANGE AREA. HAS B€EN SEE@ED PROJECT LOCATION GARFIEL.D COUNTY MAP INDEX OVERVIEW ACCESS ROAD AND TOWER 4 APPROXIMATE ROAD LENGTH 770 LF MARATHON OIL COMPANY REVISETG BY: COMMENT; 1719109 M.G. BMS ADDED PER O.V. 0127110 ROAD LEN Th Poi D:,. 02J15.14 M.G. EP PS ADDED PER C.V. 042510 M.G. &MPS REVISED PER C.G. 06,22,10 M.G. HEAP'S REVISED PER C.G. INTERTECH E&E Colorado Department of Public Health & Environment FOR AGENCY USE ONLY Water Quality Control Division WQCD-P-B2 REC 4300 Cherry Creek Drive South EFF Denver, Colorado 802464530 YEAR MONTH DAY Amendment notice for 011 and Gas Construction Field Permit Certification CONSTRUCTION STORM WATER DISCHARGE GENERAL PERMIT CERTIFICATION P1eh e—pI'ir5t or typo, Form must be filled out completely, Certification Number: COR -03 C052 Permiace (Company) Name: Marathon Oil Corporation permittee Address: 743 Horizon Court Suite 220 Grand Junction, CO 81506 phone No. 970-245-5233 Field Permit Certification Information (refer to your permit certification): Field Permit Site/Facility Name: Piceance Area/ Tower 6 County(s): Garfield Contact Person: Melissa Velasquez Contact Person Phone No,: 970"244-5743 Contact Person Email: mrvelasquez@marathonoll.com Information on Area to be Excluded Irmo Permit Coverage: Site Map: Most include Site Man indicating the boundaries of the area to he excluded from permit coverage. Refer to the Site Map instructions on page fi of this form. Maps must be folded to 8'h: x 11 inches. Map enclosed? Ye, 1•11i No Summary of work performed and description of final stabilization for the area shown in the attached map: Theile has been stabilized end a uniform vegetative cover has been established with an Individual plant density of at least 70% of pre•disierbancb levels. All temporary erosion and sediment control devices have bean removed and no further construction activities will take place. I certify under penalty of law that by tiro date of my signature below, at the identified construction site area, all disturbed soils have been finally stabilized; all temporary erosion and sediment control measures have been removed; all construction and equipment maintenance wastes have been disposed of properly; and all elements of the Sionnwater Management Plan have been completed. I understand that by subniitting this notice of amendment, T am no longer authorized to discharge stormwaler associated with construction activity by the ,general permit, for this specific area, I understand that discharging pollutants in stormwater associated with construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act. 1 ecriil`y under penally of law that 1 have personally examined and am familiar with the infornation submitted herein, and based on my inquiry of those individuals immediately responsible fur obtaining the information, 'I believe that the information is true, accurate and complete. 1 alt aware shat there are significant penalties for submitting false information, including tie possibility of fine and imprisonment. (See 18 IJ.S.0 1001 and 33 U.S,C. 1319.) Signature of.Permil Ada .lielint (Legally Responsible Party) Date Signed nZ g. 4r 4 -ret, lm,..f ..yew- Ve..-c1Q 12,441 - Name Name (printed) Title 12/08/O0covani gca mend If �;,l Marathon 0i[ Corporation_ Piceance Area Permit COR -030052 Tower 6 Inactivation Map October 14, 2011 Explanation Radio Tower Access Road Area ct Proposed Inactivation r o.sz c,cs Mole: InteerTeci :2.750 RECEIVING WATERS: LITTLE CREEK 1380 FEET NORTHWEST LOG HOUSE GULCH 2500 FEET SOUTHEAST ACCESS ROAD TO GARDEN GULCH ` EXTENSION ROAD // i f p„0 •O g5 ) PGC'C PRC A x TONER AO ACCESS ROAD TO PAD 596-32C Mee LEGEND CONSTRUCTION S[TE BOUNDARY AND LIMITS OF DISTURBANCE IQI3 ACRES) CUT FILL X SILT FENCE NOT PRESENT ASPHALT BATCH PLANTS COMMENTS: PROJECT LOCATION GARFIELD COUNTY MAP INDEX OVERVIEW PAD SITE TOWER 6 T6T 4 t fl RRFi1 ARCA a NR INFO MARATHON OIL COMPANY REVISED COMMENT 1 2/1349 MLG. DRAWING CREATED INTERTECH E&E Marathon 011° Stormwater Inspection Form Piceance Operations Summary Location: Grand Valley Field Operator: Marathon Oil Company Inspection Date: 12/30/2013 Inspector Scott Trucks Inspection Type: Routine Title: Production Leader (Marathon) SW Plan: Piceance AreaNVPSfLaydo n Yard Inspection Frequency: Once a Month Inspection Notes: Entire field is frozen and snow covered. Weather Current Weather. Sunny. dear and cold Is this inspection being conducted within 24 hrs of the end of a precipitation event? r Yes IN Na Is there discharge occurring at this time? l` Yes (7 No inspection Details - Piceance Area Location 12: I 595-32C Well Pad Question Result Comments 1. Is the stormwater permit and storrnwater management plan available? `f Yes (— No 2. Have temporary stabilization measures been initiated? `r" v. r No 3. Are installed BMPs working correctly? P res r No 4. Are additional BMPs required? 7 yes No 5. Are all BMPs in place for final stabilization? IV res r No Recommended Corrective Awns Responsible Person P Initials Location 13: Access Road to 595320 Well Pad Question Result Comments 1. Is the stormwater permit and stormwater management plan available? iw res T no 2. Have temporary stabilization measures been initiated? lir Yes r No 3. Are installed BMPs working correctly? P. Yes I' No 4. Are additional BMPs required? r Yes •+ No 5. Are all BMPs in place for final stabilization? Yes L No Recommended Corrective Actions Responsible Person 1 initials Signatures Inspector Deet J Scott Trucks Date: 12/3112013 Site Rep: Date: The above signature also shall certify that the faccty is in compiance with the Starmwater Pollution Prevention Plain and the State Generic Permit for Storerwater Discharge from large and small construction adivities n there are not any instances of non-carnpbarice identrited above Receiving Waters: Little Creek 1380 Feet Northwest House Log Gulch 3000 Feet Southeast Access Road To Garden Gulch Extension Road Non -Marathon Road & BMP's Access Road To c.01n j 1 ` - Berry Site -5% ores, °free OSEB 7 Culvert Legend 171 Area To Be Reclaimed _ Fence Sediment Trap ® Blanket EZI Cut Cattle Pond Vater Bar Rip Rap C=e'' " IBales V V -Ditch W/Check Dam - Diversion Ditch )DDDDESite Berm j i Toe Berm 4iFiber Roll X — Silt Fence f/" 1 Fill Seeded & Hydromulched Soil Roughening Snow Storage 0 80 iso Feet 1:2,400 Not Present Asphalt Or Concrete Batch Plants Project Location Garfield County Map Index Overview Access Road To Pad 596-32C Approximate Road Length = 830 LF MARATHON OIL REVISED BY: COMMENT: 3/28/2012 BJB TEMPLATE CREATION 3/28/2012 BJB MAP CREATION unser ch e&e, LLC ntorTechbbergshom@cbmalnc com M:1PmjeclalMarathon3Piceance\Projects \S W MP\ 20121596_32C\SWMP_596_32C_Road _20120328 mxd Receiving Waters: Little Creek 1000 Feet Northwest Log House Gulch 1800 Feet Southeast 1111111efliza 320 as° 0101•101.1.10101.10 0 4 gm, __— Spoil Area 0 8340 as 8340 0,1010/0/0/0/0/01010/0/01010 Produced Water Reserve Pit 0 00 0 0 Top Soil Area EP 11,11Dy,„ Legend )1Culvert Sediment Trap Cattle Pond IIIII1Water Bar Rip Rap Bales V -Ditch W/Check Dam - Diversion Ditch )))(Site Berm ))())DICToe Berm ,eFiber Roll X — Silt Fence 1,c1 Area To Be Reclaimed ,1° Fence Blanket Cut Fill Seeded & Hydromulched Soil Roughening Snow Storage Rip Rap (Large Area) V V/1 sur- E_Di 0 30 60 Feet 1:1,000 Not Present Asphalt Or Concrete Batch Plants Project Location Garfield County Map Index Overview Pad Site 596-32C Total Disturbed Area = 3.57 Acres MARATHON OIL REVISED BY: COMMENT: 3/28/2012 BJB MAP CREATION 5/8/2012 BJB BMP REVISION 8/27/2012 BJB BMP REVISION 1/17/2014 BJB BMP REVISION InterTech E5E, LLC einterTech bbergstrom@obrnainc com M: \ ProjecteNarathon Plceanco \ Projects \ SWMP \ 2014 \ 596_32C \ SWMP_596_32C_20140117 mxd Reclamation Plan Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 O‘OLSSON ASSOCIATES Article IV, 4-203. G.7. Reclamation Plan Reclamation Plan Marathon estimates that the proposed facility will be in operation for an anticipated period of approximately twenty (20) years during development and production of Marathon's Garfield County operations. Upon termination of the development and production activities, the project area will be reclaimed, as outlined below: • All equipment and structures will be removed. • Marathon will remove all safety and storm water BMPs, and other surface objects from the premises. • Marathon will restore the site to pre -facility conditions by re -contouring and re -vegetating the site. Top soil will be redistributed across the site and will be reseeded with an approved seed mix (see attached seed mix recommendation). • Marathon will monitor the site to ensure that 70 percent of the pre-existing vegetation is achieved, per the requirements of the CDPHE Stormwater Permit for the site. Seedbed Preparation and Slope Reconstruction: Cut and fill slopes will be backfilled and re-contoured to a slope of 3:1 — 2.5:1 or less in instances where necessary to match the existing natural contours. Following final contouring, all backfilled or ripped surfaces will be covered evenly with topsoil. Re -contouring should form a complex slope with heavy pocking. In areas with slope greater than 3 percent, imprinting of the seed bed is recommended. Final seedbed prep will consist of scarifying/imprinting the topsoil prior to seeding. Imprinting can be in the form of dozer tracks or furrows perpendicular to the direction of slope. When hydro -seeding or mulching, imprinting should be done prior to seeding, unless the mulch is to be crimped into the soil surface. If broadcast seeding and harrowing, imprinting will be done as part of the harrowing. Furrowing can be done by several methods, the most simple of which is to drill seed perpendicular to the direction of slope in a prepared bed. Other simple imprinting methods include deep hand raking and harrowing, always perpendicular to the direction of slope. All compacted areas will be ripped to depth of 18" with max furrow spacing of 2'. Where practicable, ripping will be conducted in two passes at perpendicular direction. Topsoil: Following final contouring, all backfilled or ripped surfaces will be covered evenly with topsoil. The topsoil in the cut slope on the back of the pad will be heavily pocked using the excavator bucket to form an uneven soil surface complex which will aid in revegetation and help with slope stabilization. The fill slope, and remaining disturbed, and reclaimed areas will be track walked to aid in revegetation and slope stabilization. In areas that may not have been disturbed during the reclamation process or areas of suspected compaction that will be reseeded, measures will be taken to loosen and spread the topsoil. These measures may include scarifying the soil by racking or harrowing the soil. Reclamation and Revegetation Plan Page 1 Seed Mix: Seed mix used for reclamation will be taken from the approved seed mixtures identified below: Pinyon -Juniper Woodland, Mountain/Wyoming Big Sagebrush Shrubland Common Name Scientific Name Form PLS lbs/acre* Indian Ricegrass Achnatherum [Oryzopsis] hymenoides Bunch 1.9 Galleta Pleuraphis [Hilaria] jamesii Bunch 2.5 Bluebunch Wheatgrass Pseudoroegneria spicata, Agropyron spicatum Bunch 2.8 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Bunch 3.3 Mutton grass Poa fendleriana Bunch 0.6 Sandberg Bluegrass Poa sandbergii, Poa secunda Bunch 0.6 *Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast or hydroseeded. Mixed Mountain Shrubland, Including Oakbrush Common Name Scientific Names Form PLS lbs/acre* Thickspike Wheatgrass Elymus lanceolatus ssp. lanceolatus, Agropyron dasystachyum Sod- forming 3.4 Bluebunch Wheatgrass Pseudoroegneria spicata, Agropyron spicatum Bunch 3.7 Bottlebrush Squirreltail Elymus elymoides, Sitanion hystrix Bunch 2.7 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Bunch 3.3 Canby Bluegrass Poa canbyi. P. secunda Bunch 0.6 Mutton grass Poa fendleriana Bunch 0.6 Letterman Needlegrass Achnatherum [Stipa] lettermanii Bunch 1.7 Columbia Needlegrass Achnatherum [Stipa] nelsonii, Stipa columbiana Bunch 1.7 Indian Ricegrass Achnaterum [Oryzopsis] hymenoides Bunch 1.9 Junegrass Koeleria macrantha, K. cristata Bunch 0.1 *Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast or hydroseeded. Spruce -Fir Forest, Including Mountain Meadows Common Name Scientific Names Form PLS I bs/acre* Mountain Brome Bromopsis [Bromus] marginatus Bunch 5.8 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Bunch 3.3 Letterman Needlegrass Achnatherum [Stipa] lettermanii Bunch 3.5 Blue Wildrye Elymus glaucus Bunch 4.8 Thickspike Wheatgrass Elymus lanceolatus ssp. lanceolatus, Agropyron dasystachyum Sod- forming 3.4 Idaho Fescue Festuca, idahoensis Bunch 1.2 Wheeler Bluegrass Poa nervosa Sod- forming 0.6 *Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast or hydroseeded. Reclamation and Revegetation Plan Page 2 Low -Elevation Salt -Desert Scrub/Basin Bi a Sagebrush Common Name Scientific Names Form PLS I bs/acre* Fourwing Saltbush Atriplex canescens Shrub 1.9 Shadscale Atriplex confertifolia Shrub 1.5 Galleta Pleuraphis [Hilaria] jamesii Bunch 2.5 Alkali Sacaton Sporobolus airoides Bunch 0.2 Streambank Wheatgrass Elymus lanceolatus ssp. Psammophilus, Agropyron riparium Sod- forming 2 5 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Bunch 1.8 Sandberg Bluegrass Poa sandbergii, Poa secunda Bunch 0.3 *Based on 45 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (90 PLS per square foot) if broadcast or hydroseeded. Seeding Procedures: For best results and success, the recommended grass mixture reseeding should be done in late autumn in order to take advantage of natural precipitation for the region. The reseeding rate should be doubled for broadcast application. Preferred seeding method is multiple seed bin rangeland drill with no soil preparation other than simple grading to slope and imprinting and waterbars, where applicable. Alternative seeding methods include, but are not limited to: • harrow with just enough soil moisture to create a rough surface, broadcast seed and reharrow, preferably at a 90 degree angle to the first harrow; • hydro -seeding (most economical in terms of seed cost); and • hand raking and broadcast followed by re -raking at a 90 degree angle to the first raking. • These are not the only means of replanting the site. However, these methods have been observed to be effective in similar landscapes. The prepared soils will be seeded (weather permitting) no more than 24 hours following completion of final seedbed preparation. The seeding will be conducted by means of drilling the prescribed seed at prescribed seeding rate. The seed will be drilled with a common range drill at a depth of 0.25 — 0.5" beneath the soil surface. The seed will be drilled horizontally across the pad faces and perpendicular to the track walking when possible. When slope gradient less than 2.5:1 exists and drilling is not possible from a mechanical and safety standpoint the soils will be broadcast seeded at twice the prescribed amount. The reseeding will be monitored and reseeded as appropriate until the reclamation standards detailed above are met. Mulch: With 24 hours of reseeding (weather permitting) hydromulch will be applied to all reclaimed and reseeded surfaces. Areas where the erosion potential is such that biodegradable blankets will be used will not be hydromulched. Reclamation and Revegetation Plan Page 3 SPCC Plan Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 Appendix C Production Facilities 6-32C Facility Production Phase Facility Configuration ■ Certifications • Facility Layout Diagram • Storage Tank Inventory ■ Secondary Containment Capacities • Facility Site Berra Design Marathon Oil Company West Fork Parachute Creek Drainage October 2013 Piceance Basin Appendix C. 32C - 1 Appendix C Production Facilities ertifications e Professional Engineer Certification • Implementation Requirements • Management Approval • EPA Applicability of Substantial Harm Criteria Marathon Oil Company Piceance Basin Appendix C' 32C - 2 West Fa Parachute Creek Drainage October 2013 Appendix C Production Facilities PROFESSION L ENGINEER CERTIFICATION By means of this Professional Engineer Certification, I hereby attest, to the best of my knowledge and belief, to the following• • 1 am familiar with the requirements of 40 CFR Part 112 and have verified that these Plans have been prepared in accordance with the requirements of this Part. • I or my agent have visited and examined the Facilities. • I have verified that these Plans have been prepared in accordance with good engineering practice, including consideration of applicable industry standards. • I have verified that the required inspection and testing procedures have been established as described in the Plans. • I have Var4 K..' tiiut tiic P ICFlj Glre adcgUate (Lll Inc Faiiiitfe J. • My certification of these Plans in no way relieves the owner/operator of the Facilities of their duty to prepare and fully implement the Plans in accordance with the requirements of 40 CFR Part 112. PE Signature & Date shall appear through seal per Colorado AES Board Rules Date of Facilities Frank K. Ferris Visit/Exam: 91512013 InterTech Environmental & Engineering Colorado PE 46342 Marathon Oil Company West Fork Parachute Creek Drainage Piceance Basin Appendix C: 32C - 3 October 2013 Appendix C Production Facilities Impleme Ma Spill Prevention, ntation Requirements for athon Oil Company ontrol, and Countermeasure Plan If further examination of the Facility covered by this SPCC plan identifies the need for corrective action to bring the Facility into compliance with the Spill Prevention, Control and Countermeasures Planning requirements detailed in 40 CFR Parr 112 (SPCC Planning regulation) the action items will be listed below. This Plan is approved and certified by the Professional Engineer based upon satisfactory completion and documentation of the corrective action item(s) listed below. It is recommended that you complete the corrective action(s) and provide adequate documentation of completion as soon as possible. Corrective Action Items: * Date should be initialed by Mana•ement when completed. MANAGEMENT APPROVAL OF T Completion Date Due Completed E IMPLEMENTATION ITEMS Date: Managernent Signature: Name and Title: Marathon Oil Company West Fork Parachute Creek Drainage Piceance Basin Appendix G- 320 - rt October 2013 Appendix C Production Facilities MAN GEMENT APPROVAL Owner/Operator responsible for Facilities: Marathon Oil Company • By Signature below. the Manager approves this Plan as part of the Multi -Facility SPCC plan, has the authority to commit the necessary resources to implement this Plan, and acknowledges that the elements identified within this Plan will be implemented. • This page may be used for the initial Management Approval or for subsequent change of management and/or change of designated person accountable. f. Signature: C g ' Designated person accountable for spill prevention: Name: Eric R. Ward Name. Eric R. Ward Date: I'► +'+.•, +^ Title: Operations Manager Title: Operations Manager Signature: Designated person accountable for spill prevention. Name: Date: Title: Name: Title: Signature Designated person accountable for spill prevention: Name. Name: Date: Title: Title: Signature: Name: Date: Title: Designated person accountable for spill prevention Name: Title: Marathon Oil Company West Fork Parachute Creek Drainage Appendix C: 32C - 5 PEceance Basin October 2013 Appendix C Production Facilities OF SUBSTANTIAL HARM CRITERIA Does the facility transfer oil over water to or from vessels and does the facility have a total oil storage capacity greater than or equal to 42,000 gallons? YES NO ,l Does the facility have a total oil storage capacity greater than or equal to 1 million gallons and does the facility lack secondary containment that is sufficiently large to contain the capacity of the largest aboveground oil storage tank plus sufficient freeboard to allow for precipitation within any aboveground oil storage tank area? YES NO Does the facility have a total oil storage capacity greater than or equal to 1 million gallons and is the facility located at a distance' such that a discharge from the facility could cause injury to fish and wildlife and sensitive environments? YES ✓ NO Does the facility have a total oil storage capacity greater than or equal to 1 million gallons and is the facility located at a distance' such that a discharge from the facility would shut down a public drinking water intake2? YES ✓ NO Does the facility have a total of storage capacity greater than or equal to 1 million gallons and has the facility experienced a reportable oil spill in an amount greater than or equal to 10,000 gallons within the last 5 years? YES NO Certification I certify under penalty of law that I have personally examined and am familiar with the information submitted in this Substantial Harrn Determination document, and that based on my inquiry of those individuals responsible for obtaining information, I believe that the submitted information is true, accurate, and complete. Signature: Name: Title: Date: Eric R. Ward Operattons Manager 1 As calculated using the appropriate formula In Attachment C -III to 40 CFR Part 112 or a comparable formula). If a comparable formula is used, documentation of the reliabiiilty and analytical soundness of the comparable formula must be attached to this form 2 For the purposes of 40 CFR part 112, public dunking water Intakes are analogous to public water systems as described at 40 CFR 143.2(e) Marathon Oil Company West Fork Parachute Creek Drainage Appendix C: 32C -6 Piceance Basin October 2013 Appendix C Production Facitities Facility Layout Diagram Marathon Oil Company West Fork Parachute Creek Dra[nage Piceance Basin Appendix C; 32C - 7 October 2013 Appendix C Production Facilities r 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 — Berm Height =1 50' EPCO Chemical infector Unit Pump & 180 gat Stainless Steel Tank in 470 gal Containment Separator Containment Weight = 3.2T LJ Well Heads ,0 Valve Can SCADA DO Solar Panels Condensate Produced Water Produced Water Double Lined 35,279 bbls Wirh2ftt or Freeboard 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Access Road 1 1 1 Condensate produced 1 toadoto Wafer 1 12' 66 1 1 Valve 1 Can Explanation Earthen Berm - Fencing Valve Marathon Oil M,�lrat hrart O t l 596-32C SPCC Plan March 2013 Date October B, 2013 male Not to Scale SESW Sec 32 1WN 55 - RNG 96W I. the }ayyay __ term rel be leg n-ptace al tie condo -Aar of &Sing and o ropletcn a tinbes lo saotrtion for !wage:eon wenlrsn w roll be allowed t4 degrade- notraly R`nr to resuming ddvnp and sem+ mashies at BIe (middy, the berm and Pad mall be rvalualed card mairtaned andrflr upgraded as necessary 2. Egter eenl connedions are shorn for process arecton arty and are nota ralenear of as -pored ocedlw+s in the Lela Iflyer l�r.lr inleftla L&L. LLL liMnreet.I IC C.C.` Jatc rNbtKRIrcMVGpancenEWIG, Sa gs+LIOC 3RC Ztl f 3100 deg Marathon Oil Company Piceance Basin Appendix C: 32C - 8 West Fork Parachute Creek Drainage October 2013 Appendix C Production Facilities Stc ra,•e Tank Inventory Marathon Oil Company West Fork Parachute Creek Drainage Piceance Basin Appendix C: 32C - 9 October 2013 Appendix C Production Facilities BULK STORAGE CONTAINER IDENTIFICATION AND IN (Any container that stores 55 gallons or mors ENTORY - PRODUCTION of ail) Container/ Source I,D. Number of Tanks Possible Substance Stored (oil & Haz. Substance) Maximum Capacity (Gal or _IA#22. Container Type (i.e. floating roof, fixed roof, etc.) Vacuum/ Pressure Relief Level Alarm! Gauge Potential Failure (Leah/Rupture/ Overflow) Direction Rate of Flow of Flow Secondary Containment Capacity (Gallons) Applicable Regulations (40 CFR 112) BULK STORAGE CONTAINERS Tank 1 1 Produced Water 21,000 gal Steel, Fixed Yes Yes Up to 21,000 gal Gradual to Instantaneous Southwest 41,508 112.7, 112.9 Tank 2 1 Condensate 16,800 gal Steel, Fixed Yes Yes Up to 16,800 gal Gradual to Instantaneous Southwest 41,508 112.7, 112.9 Tank 3 1 Produced Water 16,800 gal Steel, Fixed Yes Yes Up to 18,800 gal Gradual to Instantaneous Southwest 41,508 112.7, 112.9 Tank 4 1 Condensate 16,800 gal Steel, Fixed Yes Yes 1 In to 16,800 gal Gradual to Instantaneous Southwest 41,508 112.7, 112.9 Pond 1 Produced Water 1,481,718 gat Double Lined No Yes Up to 1,481,718 gall Gradual to Instantaneous Southwest NA2 112.7, 112.9 MOBILE VARIABLE BULK STORAGE CONTAINERS' OTHER POTENTIAL SOURCES, Separator p 1 Condensate ! Water - NA Steel NA NA Varies with Production Gradual to Instantaneous Southwest NA2 112.7. 112.9 NON -JURISDICTIONAL CONTAINERS NA 1 —� Corrosion Inhibitor 180 oal Stainless Steel NA 1 NA Up to 180 aal - Gradual to Instantaneous Southwest 470 NA • Identified tank(s) are field constructed containers. The number of mobile/variable bulk storage containers on site may vary as containers are added and removed during operations. Each type and capacity of mobile/variable container is represented in the inventory along with the maximum number of containers stored on site at any given time. In lieu of secondary containment measures, in accordance with 40 CFR 112.7(d), Marathon has provided in the SPCC plan an oil spill contingency plan following the provision of part 109 and a written commitment of manpower, equipment, and materials required to expeditiously control and rernove any quantity of oil discharged that may be harmful. Marathon Oil Company Piceance Basin Appendix C. 32C -10 West Fork Parachute Creek Drainage October 2013 Appendix C Production Facilities Secondary ontainment Capacities Marathon Oil Company West Fork Parachute Creek Drainage Piceance Basin Appendix C: 32C - 11 October 2013 Appendix C Production Facilities SECONDARY CONTAINMENT CALCULATIONS - TANK BATTERY RODUCTION Tank Battery Secondary Containment Capacity Actual Containment Height Minimum Containment Height Secondary Containment Area Tank Footprint Net Volume 3.27 ft 1.88 ft 66ftx24ft+(Trx122ft)=2,036ft' 4 tanks @ 12 ft dia. each = (4— 1) x (Tr x 122/4) = 339 ft2 3.27 ft x (2,036 ft2-- 339 ft2) = 5,549 ft' x 7.48 galift3 = 41,508 gal Freeboard for Precipitation 25 Year, 24 Hour Storm Event Precipitation (NOAA)0.19 ft Volume of the Largest Facility Tank 21,000 gal x (1 ft 17.48 gal) = 2,807 ft3 Net Area (Minus Tank Footprint) 2,036 ft2— 339 ft2 = 1,697 ft2 Minimum Containment Height to Contain the Largest Tank 2,807 ft3 / 1,697 ft2 = 1.65 ft Freeboard 3.27 ft —1.65 ft = 1.62 ft 25 Year, 24 Hour Storm Event Volume 2,036 ft2 x 0.19 ft = 387 ft3 Freeboard use by a 25 Year, 24 Hour Storm Event 387 ft311,697 ft2 = 0.23 ft Available Freeboard (Minus 25 Year. 24 Hour Storm Event) 1.62 ft — 0.23 ft =1.4 ft ' The 25 Year. 24 Hour Storm Event information is from the NOAA Atlas 2: Precipitation -Frequency Atlas of the Western United States, Volume III -Colorado 2The minimum containment height is calculated to: accommodate the footprint volume of other structures within the containment and hold the volume of the largest tank and the volume of the 25 -year 24-hour rainfall event; and account for surface irregularities (sloping and settling) within the containment. Marathon will ensure that. at a minimum, this height is maintained. Marathon Oil Company Piceance Basin Appendix C. 32C - 12 West Fork Parachute Creek Drainage October 2013 Appendix C Production Facilities CONTAINMENT CALCULATIONS - PRODUCTION FACILITY SITE BERM Facility Site Berm Capacity Actual Berm Height' Minimum Facility Site Berm Area Facility Equipment Footprint Net Volume Freeboard for Precipitation 25 Year, 24 Hour Storm Event Precipitation (NOAA) °) x Volume of the Largest Facility Tank Net Area (Minus Facility Equipment Footprint) Minimum Facility Site Berm Height to Contain the Largest Tank Freeboard 25 Year, 24 Hour Storm Event Volume Freeboard use by a 25 Year. 24 Hour Storm Event Available Freeboard (Minus 25 Year. 24 Hour Storm Event) 1.50 ft 367ftx485ft= 177.995 ft2 2,189 ft2 1.50 ft x (177,955 ft2 — 2,189 ft2) = 263,649 ft3 x 7.48 galift3 = 1.972.095 gal 0,19 ft 21,000 gal x (1 ft317.48 gal) = 2,807 ft3 177,955 ft2 2,189 ft2 = 175,766 ftp 2,807 ft3 / 175.766 ft2 = 0.02 ft 1.50 ft— 0.02ft= 1.48 ft 177,995 ft2 x 0.19 ft = 33,819ft'"' 33.819 ft3 / 175,766 ft2 0.19 ft 1.486-019 ft= 1.29 ft The Equipment Footprint is an estimate of the area within the Facility Site Berm which is unusable as containment due to equipment, storage tanks. vehicles, etc. The footprint is based an the following calculation: gas production, separation, and dehydration unit (8" x 10) + SCADA unit (5' x 5') + tank battery (66' x 24' + (Tr x 122')) + EPCO buildings (2 x (4' x 6")). The 25 Year, 24 Hour Storm Event information is from the NOAA Atlas 2: Precipitation -Frequency Atlas of the Western United States. Volume III -Colorado. 3The facility site berm will be left in-place at the conclusion of drilling and completion activities to provide protection for production operations, but will be allowed to degrade naturally. Prior to resuming drilling and completion activities at the facility, the berm and pad will be evaluated and maintained and/or upgraded as necessary. In lieu of secondary containment measures, Marathon has, as required, included in Appendix G and H an Oil Spill Response Procedure and Written Commitment of Manpower to expeditiously control and remove any quantity of oil dischar• ed that ma be harmful. Marathon Oil Company Piceance Basin Appendix C: 32C - 13 West Fork Parachute Creek Drainage October 2013 Appendix C Production Facilities Facilit, Site Berm Design Marathon Oil Company Piceance Basin Appendix C- 32C - 14 West Fork Parachute Creek Drainage October 2013 Appendix C Production Facilities Outside Slope_.\\. Note: Berm Section Detail Slope Is exaggerated Facility site berms are left In place at the conclusion of drilling and completions activities to provide eddil:ional protection for production operations, but are allowed to degrade naturally. Prior to resuming driliing or completions activities on a pad, the bene and pad will be evaluated and maintained 1 upgraded as necessary. Piceance Well Pad Facilities Generic Berm Production Phase Date July 15, 2009 K. Anders Scale ❑r Moving rtel. No. Generic Berm Rev. Apt lt 2, 2013 Drawl% hilmmtweivAntrEerameceeemodenwk sect Occunm6 G „„, 13W 62_SPCC Pla roon_ra y_ onn Ganem_ P+e artier Sec Marathon Oil Company Piceance Basin Appendix C: 32C - 15 West Fork Parachute Creek Drainage October 2013 Adjacent Land Owners and Mineral Rights Owners Information Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372 Marathon Oil Company 32C Produced Water Pond Adjacent Landowners & Mineral Rights Owners May 5, 2014 ADJACENT LAND OWNERS Parcel Number: 213532100009 Attn: Tax Department Berry Petroleum Company 1999 Broadway, Ste 3700 Denver, CO 80202 Parcel Number: 213532100009 Marathon Oil Company 5555 San Felipe Houston, TX 77056 Parcel Number: 213532100009 PGR Partners, LLC 370 17th St, Ste 4300 Denver, CO 80202 Parcel Number: 213532100009 Wapiti Oil & Gas, LLC 800 Gessner, Ste 700 Houston, TX 77024 Parcel Number: 213529100008 Chevron Texaco Property Tax Chevron USA Inc PO Box 285 Houston, TX 77001 MINERAL RIGHTS OWNERS Chevron Texaco Property Tax Chevron USA Inc PO Box 285 Houston, TX 77001 Parcel Number: 213527300015 Encana Oil & Gas (USA) Inc. c/o Merritt Appraisals & Tax Consulting PO Box 330 Gainesville, TX 76241 Parcel Number: 213533400010 Chevron Texaco Property Tax Chevron USA Inc PO Box 285 Houston, TX 77001 Parcel Number: 216902200019 Richard L, Lyle & Ned Prather PO Box 165 DeBeque, CO 81630-0165 Parcel Number: 216902200019 Donna J Koehler PO Box 300 DeBeque, CO 81630 Parcel Number: 216902200019 JoJo Properties, LLC PO Box 1926 Rifle, CO 81650 Page 1 213527300015 213532100009 BERRY COMPANY 32C Water Impoundment 213533400010 216902200019 PRATHER RICHARD 216904400003 Parcels represented with labels are witihin 200' of affected parcel Legend 0 32C Water Impoundment =Parcel 213532100009 (880 Acres) 0 Parcels Route to Facility 0 0.225 0.45 Miles 0.9 PROJECT NO: 012-1372 DRAWN BY: Jenna Muhlbach DATE: 6/17/2013 ADJACENT PARCEL MAP 32C WATER IMPOUNDMENT MARATHON OIL COMPANY GARFIELD COUNTY, COLORADO O\OLSSON ASSOCIATES 760 HORIZON DRIVE; SUITE 102 GRAND JUNCTION, CO 81506 TEL 970.263.7800 FAX 970.263.7456 FIGURE AP - 1 NRCS Soils Report Marathon Oil Company 32C Produced Water Pond OA Project No. 012-1372