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HomeMy WebLinkAbout1.1 Applicationtl erigr1 y 1 a I 1 a 1� a ¢ 1 1 1 1 1 �. eA e • 1 1 L 1 1 __ r '' {1Y �}, i e 'aL4Vu. a a le 1 1111"11.1.4111 ,.11111: cD, Et r — Ca B.4M. LLY. _ _ _�• .:........... 111e III 1L tl .11111111JL, mod T III 1....... III ir 111 c) ffi�e c, 1lit ■O. 1 '.yLv rTl:I OQ-Lal 010 BavoLar� 04 M 1 .. B.LM... .. L un-lu�Loe IIIMEM Adjclnlne 5105 0. 5? 11. A. oa I. AdloieinA 21W APIROvzo wan imam 2135 T.53. — R.98T. 1� Adjoining 2137 r 41 y1 1 e 10 10` 6 14 R. 97 W. R. 96 W. 14 14 157 Taxing Area No. 16 - BHFZ Adjoining 2135 8 001.0 10171 14 tar Taxing Area 9o. 2 49-118 ivT xs� to 24 1 EE 00' 1e+ E8+ 23+ 42 0120. 8710 It 10 12 VI 12 19 >r 1 ,r / Leal. Melee And 201,101 Parcel Number I:eed Te 02B 29 02 21 26 g / (1 .TO7—) 1z1 33 11 1 2411-0411-00-002 Y 15 22 27 34 0411-101-00-015 Adjoining 2411 0 1000 e100 3100 4020 1 14 25 Y 24 29 25 41 f ef 35 2411-017-00-001 38 % C:cv. 8100 APPROVED COUNTY A28188011 2169 T,6S - R -97W. 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SEC. 27 S.W.1/4 CONSTR 'C,TION MANA€Ei11ENT, 1038 Country Rd 323 ,`,.,& RiHE, CO 81650 Enterprise Gas Processing, LLC Jackrabbit Extension and Laterals- Development Plan Review for Right -of -Way Application Submittal Item Tab 19- Listing of Adjacent Property Owners adjacent to or within 200 feet of the proposed right-of-way 9- 105 (B) The following is a list of landowners adjacent to or within 200' of the proposed right-of- way for the Jackrabbit Extension and Laterals project and within 200' of the proposed pipeline staging yards. Private landowners are identified by Assessor's Parcel Number and public lands are listed by address. This information is accurate as of June 2, 2009. Garfield County planning staff has made a determination that only surface owners are to be identified and notified regarding the proposed right-of-way. Please see attached in Tab 2 the Forerunner Corporation drawings 200'1350' Impact Envelopes with Surface Ownership noting ownership within 350 feet of the proposed right-of-way. Page 1 of 7 Properties that the Pipeline is being constructed upon. These property owners will receive a copy of the entire Development Plan Review for Right -of -Way Application that will be submitted to Garfield County. 1. Parcel #2169-122-00-012 Parcel #2171-182-00-008 Chevron, USA Inc. c/o Chevron Texaco Property Tax P.O. Box 285 Houston, TX 77001 2. Parcel #2411-013-00-001 Puckett Land Company 5460 S Quebec St Ste 250 Greenwood Vlg, CO 80111-1917 3. Parcel #2447-064-00-057- Subject Parcel- 21.154 acre Staging Area Parcel #2409-324-00-138- Subject Parcel- 7 acre staging area Specialty Restaurants Corp 80PCT Stockton Restaurant 20PCT 8191 E Kaiser Blvd Anaheim, CA 92808-2214 Adjacent Property Owners to the Pipeline All property owners noted below will receive a copy of the Public Notice regarding the project. 4. Parcel #2169-141-00-022 Koehler, Donna J. PO Box 300 Debeque, CO 81630 Savage Limited Partnership I Attn. John Savage 5953 County Road 320 Rifle, CO 81650 Prather, Richard L., Lyle & Ned 1/3 Int. PO Box 165 Debeque, CO 81630-0165 Page 2 of 7 5. Parcel #2411-101-00-015 Shell Frontier Oil & Gas Inc. c/o Shell Oil Company PO Box 4854 Houston, TX 77010 6. Parcel #2171-052-00-002 Chevron USA Inc c/o Chevron Texaco Property Tax P.O. Box 285 Houston, TX 77001 7. Parcel #2169-022-00-019 Prather, Richard L., Lyle & Ned 1/3 Int. PO Box 165 Debeque, CO 81630-0165 Adjacent Property Owners to the Staging Areas All property owners noted below will receive a copy of the Public Notice regarding the project. 8. Parcel #2447-062-00-069 Cera, Catherine A & OHara, Robert P.O. Box 276 Parachute, CO 81635 9. Parcel #2447-061-00-056 Specialty Restaurants Corp 80PCT Stockton Restaurant 20PCT 8191 E Kaiser Blvd Anaheim, CA 92808-2214 10. Parcel #2447-042-00-054 Jolley, M. Carter, Jr. P.O. Box 284 Glenwood Springs, CO 81602 Page 3 of 7 11. Parcel #2409-334-00-152 Keinath, Steven PO Box 5628 Minneapolis, MN 55440-5628 12. Parcel #2447-043-00-053 Keinath, Steven W. & Sherry L. PO Box 5628 Minneapolis, MN 55440-5628 13. Parcel #2447-082-00-010 United States of America Address not listed on the Garfield County Assessor's records 14. Parcel #2447-072-00-957 Bureau of Land Management 50629 Highway 6&24 GIenwood Springs, CO 81601 15. Parcel #2445-124-00-010 Specialty Restaurants Corp 80PCT Stockton Restaurant 20PCT 8191 E Kaiser Blvd Anaheim, CA 92808-2214 16. Parcel #2409-324-00-138 Specialty Restaurants Corp 80PCT Stockton Restaurant 20PCT 8191 E Kaiser Blvd Anaheim, CA 92808-2214 17. Parcel #2409-342-00-108 Patterson, William R 60 PCT Power, Rodney C 20 PCT ETAL PO Box 1329 Grand Junction, CO 81502 Page 4 of 7 18. Parcel #2409-334-00-152 Keinath, Steven PO Box 5628 Minneapolis, MN 55440-5628 19. Parcel #2409-342-00-107 Patterson, Williams & Power, Rodney & Tipping, Ronald E & Marie E P.O. Box 1329 Grand Junction, CO 81502 20. Parcel #2409-321-00-110 Williams Production RMT Co. Logan & Firming Inc. 3615 S Huron St Ste 200 Englewood, CO 80110 21. Parcel #2409-273-00-002 Strong, George P & Leslie J PO Box 808 Silt, CO 81652 22. Parcel 1t2409-331-00-002 Strong, John E. 1505 E 12th St Rifle, CO 81650 23. Parcel #2409-331-12-001 Parachute Commercial, LLC PO Box 700 Glenwood Springs, CO 81602 24. Parcel #2409-331-11-001 Parachute Commercial, LLC POBox700 Glenwood Springs, CO 81602 Page 5 of 7 25. Parcel #2409-284-10-001 Parachute Commercial, LLC POBox700 Glenwood Springs, CO 81602 26. Parcel #2409-284-10-002 K&MLLC 1500 Cnty Rd 259 Rifle, CO 81650 27. Parcel #2409-284-10-004 Gardner, Kenneth Allan 1113 Cooper Avenue Glenwood Springs, CO 81601-3922 28. Parcel #2409-284-10-005 Parachute Commercial, LLC POBox700 Glenwood Springs, CO 81602 29. Parcel #2409-284-10-006 Schaeffer, Nathan & Becky 171 County Road 340 Parachute, CO 81635 30. Parcel #2409-284-10-007 Schaeffer, Nathan & Becky (JT) 171 County Road 340 Parachute, CO 81635 31. Parcel #2409-284-10-008 Parachute Commercial, LLC POBox700 Glenwood Springs, CO 81602 Page 6 of 7 32. Parcel #2409-273-09-001 Parachute Commercial, LLC PO Box 700 Glenwood Springs, CO 81602 33. Parcel #2445-101-00-951 Bureau of Land Management 50629 Highway 6&24 Glenwood Springs, CO 81601 Thank you for your assistance on this project. Please contact me with any questions. Sincerely eA<-‘3.• Philip B. Vaughan President PVCMI-Land Planning Division Page 7 of 7 EPCO, INC. April 9, 2009 Mr. Fred Jarman Director Garfield County Building and Planning Department 108 8th Street, 4th Floor Glenwood Springs, CO 81601 Dear Mr. Jarman, By this letter Enterprise Gas Processing, LLC authorizes Phil Vaughan, PVCMI- Land Planning Division, to represent Enterprise Gas Processing, LLC in any and all matters related to the Development Plan Review for Right -of -Way application for the "Jackrabbit Extension and Laterals" project. This includes the preparation and submission of documents associated with the land use application and representation of the application before the applicable appointed and elected boards. Sincerely, Richard Hutchison, P.E. Vice President- Project Management EPCO, Inc. P. 0. BOX 4735 Houston, Texas 77210-4735 2727 NORTH LOOP WEST HOUSTON, TX 77008-1044 713.880.6500 STATr.41142 4UTHitiEtrZY Pursuant tothe. undersi4ned es..eouteS.. . thiB ..$tateffientOf liOthOrity on behalf .Of. fLI-C fI.vtre (oorPoration, conpaiy,„general- :.tikartnetshipi registeredfiTLitecl partnership, ;.rgiStered 1inited 1ia1x1ity 1x1d partneiShip, iitAkted:. partners)ip. 4S:s0Oiati4on, goverrnuent aq6,noittrust or 6t440.., eapaole of holding tte to:- real 'prOperh:a.r. {the:. l'EntitYM., and states .as The naMe of the .Eritity and „formed .1)ndei. the: 1s. ipt , The mailing address for the Entity is 116t /414./.60.44 67thet 11011.54,, 1ef.d5 77002. The e2cecute affeotin 4810#:! 4/10/Ot -tkOiition± :th'e person authorized' to. truireis :conveytng,encumbering, or otherw:is itle .to real propetty on beh4f- of the Entity is 444., A!” it- if! , md limitations upon. the authority of the person named above or h0.14".ing. Ole rpoisit,ion cie"goribed p.ove to bind th0 Entity are as fr,',Xigwai tiN, 4 .1-,4 4// a •W -w ?e tetitieht • 65%illOpfi) , rnfressor 5'»°plot 744tters dancetning the tanner in :which the Entity dealS With any interest in, real •proPetty are-. ti no the matter, leave this. sactotl-blank /201 EXECVIES thi1 day of-, 'wiser • Si.graitur .1.4emeY1Mci 1;.0.111te Leonard W. Title (if an14; Sr. VICO teSI STth LE Of. )SS-. e00071' OF ,karri.5____). LIM ivt e. f0-e4roi.h1/ i*trument wiLi 4 0; 40.4 Q gq bGgo ie this day Of oyt beha If &f 7 An+ da24101gly I 1f Sc sly 'hand and of ficLal... .e.isois.S.idn [sFa1 Id' • ItrifiN DONNA 1. KNAPP „ t Notary Public, State oflexas 1.4XV ..4.) My Commission E xpires Aptil 22. 2012 tn.otar So Public) 1.1•74,RIVM-k4s ANTRIVIVEMPaRallfalsee.arrtr,1..- 1111 Fikri rlNL rMIMIL WdIAIIC1103111P1140 11N'1111111 Reception#: 769716 06/1712009 03:46:27 PFI Jean R{bericc 1 of 1 Rec Fee:$6.00 Doc Fee:0.00 GARFIELD COUNTY CO SPECIAL POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS: That I, MICHAEL A. CREEL, in my capacity as President and Chief Executive Officer of Enterprise Gas Processing, LLC, a Delaware limited liability company (the "Company") hereby have made, constituted and appointed, and by this Special Power of Attorney do make, constitute and appoint RICHARD G. HUTCHISON, the true and lawful attorney-in-fact of the Company and in its name, place and stead to do and perform the following acts on behalf of the Company: 1. Make application for any permits or licenses relating to any and all real property or facilities owned by the Company in Garfield County, Colorado (the "Permitting Activities"). 2. Execute and deliver any documents required in connection with the Permitting Activities. 3. Such other acts in connection with or in furtherance of the matters described in paragraphs 1 and 2 which said attorney-in-fact, in his discretion, may deem necessary and proper, including but not limited to the delegation .of such authority to consultants and/or contractors acting on behalf of the Company. Giving and granting to said attorney-in-fact full power and authority to do and perform every act necessary and proper to be done in the exercise of the foregoing powers as fully as the Company might or could do, with full power of appointment, substitution and revocation, hereby ratifying and confirming ail that said attorney-in-fact shall lawfully do or cause to be done by virtue of this document. Any previous actions taken on behalf of the Company by the aforementioned attorney- in-fact are hereby ratified and confirmed. This Power of Attorney shall terminate and be of no further force and effect on the earliest to occur of (i) written revocation, (ii) two years from the date hereof, or (iii) termination of such person's employment with EPCO, Inc. This Special Power of Attorney shall become effective on November 11, 2008. ENTERPRISE GAS PROCESSING, LLC By: a Michael A. Cr 'resident and Chief Executive Officer STATE OF TEXAS COUNTY OF HARRIS This instrument was acknowledged before me on the 11''' day of November, 2008, by Michael A. Creel, as President and Chief Executive Officer of Enterprise Gas Processing, LLC, a Delaware limited liability company, on behalf of said Company. `, LA . 41=14. c CO tIr\t, Notai4 Public E 1 Vatc11ia1 C(MIR Mria� Mt�`acii}�ihr, 1038 Cowry Rd 323W, RiRE, CO 81650 Enterprise Gas Processing, LLC Jackrabbit Extension and Laterals- Development Plan Review for Right -of -Way Application Submittal Item Tab 21- Construction Management Plan Please find attached the following documents that comprise the Construction Management Plan for the project: 1. Jackrabbit Extension and Laterals Project- Construction Management Plan- June 2009 2. Enterprise Storm Water Management Plan- Piceance Basin Gathering System - Colorado Discharge Permit System- Stormwater Certification No: COR -03D733. 3. Environmental Alignment Sheets A. 2.1 miles of 20 inch diameter mainline extension suction pipeline *Drawing EE1801-001 Station 0+00.0 to Station 52+80.0- Rev. 3 *Drawing EE1801-002 Station 52+80.0 to Station 92+65.2- Rev. 3 B. 4.8 miles of 10 inch diameter Haystack Lateral *Drawing EE1805-001 Station 0+00.0 to Station 22+32.2- Rev. 3 *Drawing EE1805-002 Station 22+32.2 to Station 75+12.2- Rev. 3 *Drawing EE1805-003 75+12.2 to Station 127+92.2- Rev. 3 *Drawing EE1805-004 Station 127+92.2 to Station 180+72.2- Rev. 3 *Drawing EE1805-005 Station 180+72.2 to Station 209+43.3- Rev. 3 *Drawing EE1805-006 Station 209+43.3 to Station 234+42.6- Rev. 3 C. 2.6 miles of 10 inch diameter Garden Gulch Lateral *Drawing EE1802-001 Station 0+00.0 to Station 52+81.0- Rev. 3 *Drawing EE1802-002 Station 52+81.0 to Station 106+82.5- Rev. 3 *Drawing EE1802-003 Station 106+82.5 to Station 161+41.8- Rev. 3 Page 1 of 2 3. Spill Prevention Control and Countermeasures Plan for the staging areas. Thank you for your assistance on this project. Please contact me with any questions. Sincerely Philip B. aughanV President PVCMI-Land Planning Division Page 2 of 2 ENTERPRISE GAS PROCESSING, LLC CONSTRUCTION MANAGEMENT PLAN JACKRABBIT EXTENSION AND LATERALS Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 1 of 19 TABLE OF CONTENTS Section Topic Page 1. Vicinity Maps 9-104 (A) 3 2. Ownership 9-104 (C) 4 3. Project Facilities 9-104 (H) 5 4. Staging Areas 9-104 (0) 5 5. Garfield County Assessor's Maps 9-105 (B) 5 6. Adjacent Property Owners 9-105 (B) 6 7. Construction Management Plan 6 8. Design Specifications 19 9. Soils Conservation and Spill Prevention 19 1. VICINITY MAPS —Right-of-way alignment sheets and legal descriptions. Alignment Sheets — Forerunner Corporation has prepared pipeline alignment sheets with an overall size of 24" x 36" with aerial photography background. The plan scale of the alignment sheets shall be 1" = 2400'. The project is detailed in three pipeline extensions. A. 2.1 miles of 20 inch diameter mainline extension suction pipeline B. 4.8 miles of 10 inch diameter Haystack Lateral C. 2.6 miles of 10 inch diameter Garden Gulch Lateral Station distances reported on pipeline alignment sheets shall be in standard survey horizontal units of measure according to the survey datum selected for project work. Alignment sheets show the following information in horizontal bands, information boxes and title blocks in customary manner for this type of drawing: • Proposed natural gas pipeline centerline and Pi's; • Project access roads; • Permanent ROW, construction ROW, extra workspace, staging areas and similar locations; • Landowners name with distance in feet and miles along right-of-way; • Utility crossings and parallel alignments, (including fences); • Highway, county road, field access and 2 -track crossings; • Wash, stream, canal and river crossings; Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 2 of 19 • Environmentally sensitive areas (wetland boundaries, cultural resource sites, wildlife restrictions, etc.) when identified by environmental consultant. • Pipeline schematic and material summary to include: o Major line valves, fab assemblies and fittings o Pipe materials: OD WT Grade Coatings o PI deflections o PI side bend, sag bend and over bend Locations requiring hot bends or field fittings o Foreign pipeline and cable crossings o Adjacent pipeline and cable parallel offsets o Pipe anchors o Cathodic test leads Project Alignment Sheets are: Project Cover Sheet- P-13436 Jackrabbit Gathering System Phase I and Phase II. A. 2.1 miles of 20 inch diameter mainline extension suction pipeline *Drawing 12499-1801-OOB Cover Sheet *Drawing 12499-1801-011 Station 0+00.0 to Station 52+80.0 *Drawing 12499-1801-012 Station 52+80.0 to Station 92+65.2 B. 4,8 miles of 10 inch diameter Haystack Lateral *Drawing 12499-1805-OOA Cover Sheet *Drawing 12499-1805-001 Station 0+00.0 to Station 22+32.2 *Drawing 12499-1805-002 Station 22+32.2 to Station 75+12.2 *Drawing 12499-1805-003 Station 75+12.2 to Station 127+92.2 *Drawing 12499-1805-004 Station 127+92.2 to Station 180+72.2 *Drawing 12499-1805-005 Station 180+72.2 to Station 209+43.3 *Drawing 12499-1805-006 Station 209+43.3 to Station 234+42.6 C. 2.6 miles of 10 inch diameter Garden Gulch Lateral *Drawing 12499-1802-OOA Cover Sheet *Drawing 12499-1802-001 Station 0+00.0 to Station 52+81.0 *Drawing 12499-1802-002 Station 52+81.0 to Station 106+32.9 *Drawing 12499-1802-003 Station 106+32.9 to Station 129+58.5 ROW Plats/Legal Descriptions - The survey information collected by Forerunner Corp. is source for development of right-of-way acquisition parcel maps and legal descriptions. Drawings for right-of-way acquisition for parcels crossed by the pipeline will be prepared on legal size pages. Legal descriptions of the right-of-way for each parcel crossed will be incorporated onto the ROW plats. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 3 of 19 Project ROW plats have been developed for the following landowners: A. 2.1 miles of 20 inch diameter mainline extension suction pipeline Chevron USA, Inc. Station 0+00.0 to Station 58+71.7 Puckett Land Company Station 58+71.7 to Station 92+64.7 B. 4.8 miles of 10 inch diameter Haystack Lateral Puckett Land Company Station 0+00.0 to Station 234+42.6 C. 2.6 miles of 10 inch diameter Garden Gulch Lateral Chevron USA, Inc. Station 0+00.0 to Station 130+19.2 2. OWNERSHIP — Adjacent properties to proposed right-of-way within 350 feet of any area to be disturbed are noted on the pipeline alignment sheets plan view. 3. PROJECT FACILITIES — The project consists of approximately 7.4 miles of new 10 -inch diameter and 2.1 miles of new 20 -inch diameter, 500 psig, natural gas pipeline within Garfield County, Colorado. The proposed Jackrabbit Gathering System is the culmination of a natural gas gathering system by Enterprise Gas processing, LLC, which is intended to gather natural gas production from Marathon Oil Company. This project builds upon the previously permitted Marathon Gathering Project and Jackrabbit Compressor Station, which will deliver natural gas to processing facilities and market for sale. The pipeline project consists of the following pipelines (500 psig MAOP): • 2.1 mile 20" mainline extension • 4.8 mile 10" Haystack lateral • 2.6 mile 10" Garden Gulch lateral The new and extended pipelines will connect new and anticipated Marathon Oil Company gas wells to the Jackrabbit Compressor Station, which compresses gas to a pressure of nearly 1400 psig. Above ground encumbrances proposed as part of this project will consist of the following: • (3) 10" pig launchers Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 4 of 19 • (3) 10" pig receivers • (1) 20" pig launcher 4. STAGING AREAS —Staging areas beyond the temporary construction work space will be needed for the project. Staging areas include a 7 acre and 21.154 acre parcel near Una. 5. GARFIELD COUNTY ASSESSOR MAPS — The following Garfield County Assessor Maps were used in this project. Map 2135 Map 2169 Map 2411 Map 2171 Map 2447 Map 2409-331 Map 2445 Map 2409 Map 2409-284 Map 2409-273 6. LISTING OF ADJACENT PROPERTY OWNERS -- Adjacent properties to or within 200 feet of the proposed right-of-way are noted on the pipeline alignment sheets plan view. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 5 of 19 7. CONSTRUCTION MANAGEMENT PLAN Construction Schedule. Manpower and Equipment - Construction will begin upon the receipt of the necessary agency approvals and permits, acquisition of ROW grants from affected landowners, delivery of sufficient quantities of line pipe and other materials to start the work and retention of a qualified, available and economically viable contractor to perform the work. Estimated milestone dates for construction schedule events are as follows: Jackrabbit Extension and Laterals Pipeline Construction Event Description Approximate Dates Mobilization Day 1 to Day 27 ROW Day 16 to Day 43 Ditch Day 18 to Day 45 String Day 20 to Day 47 Engineer and Bend Day 22 to Day 49 Weld Day 24 to Day 51 Coating Day 26 to Day 54 Lower and Tie -In Day 29 to Day 66 Pad and Backfill Day 30 to Day 68 Nitrogen Test Day 53 to Day 81 Clean Up and Demobilization Day 79 to Day 92 The number and types or personnel, vehicles and equipment employed for project construction will increase from a minimum at the beginning of the work, to a maximum about 1 month after start, stay more or less at this peak level until about 1 month from the end of the work and then decrease to a minimum. At the peak level of personnel staffing and equipment deployment, the following types and approximate numbers can be expected: Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 6 of 19 Personnel': =Quantity Surveyors 6 Construction Managers 1 Construction Engineers 3 Chief Inspector 1 Inspection Manager 1 Inspection Clerical 1 Inspectors , 8 X -Ray Technician 8 Construction Supervisor 2 Assistant Supervisor 2 Contractor Clerical 1 Foremen 15 Equipment Operators 95 Welders 20 Welders Helpers 20 Laborers 85 Truck Drivers 40 Total 309 Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 7of19 Vehicles and Equipment ;: Quantity 4x4 Pickup 85 Large capacity vehicles 8 Bulldozer 12 Road Grader 2 Side Boom 9 Welding Trucks 20 Trucks with Flatbed Trailers 4 Stringing Trucks 6 Flatbed Trucks 2 Trackhoe 21 Rubber Tire Backhoe 1 Pipe Bending Machine 2 Dump Truck 2 X -Ray Van 3 Air Compressors 3 De -Watering Pumps 5 Side -Cast Seeder 1 Drill Seeder 1 Office Trailer 2 Equipment Trailer 6 Portable Toilets 20 Construction Sequence • Fabricated Assemblies — the pig launchers and pig receivers will be fabricated within the respective staging areas. Each fabricated assembly will be transported to its location during pipeline construction activities. Personnel and equipment required for a project of this size, type and nature exist in adequate quantities in the regional area. The equipment and personnel will be staged and lodged in nearby locations to include but not limited to Parachute, Rifle, Meeker, Glenwood Springs, De Beque, Grand Junction and points in between. Pipe storage yards, equipment and materials warehousing, contractor yards and other project use areas will be at pre-existing locations owned or leased by the pipeline contractor or other industrial or commercial concerns. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 8of19 Traffic Impact Plan • Employee Parking —Unless the construction schedule needs to be expedited, the work day will begin at 7:OOam and end at 5:30pm, Monday through Saturday. AH personal vehicles of employees will be parked at the primary staging area. Only Contractor vehicles will be allowed on to the pipeline right-of-way. • Employee Transportation — Each work day personnel will be transported to the work area in either Company vehicles or within a large capacity vehicle. • Access from Public Areas — Vehicles will leave the primary staging area, travel north on County Road 215 from Parachute, Colorado, to Garden Gulch Road. Each vehicle must be recorded at the Marathon Oil Check Station at the eastern edge of Garden Gulch Road before proceeding to the top of the mesa. Vehicles will follow Garden Gulch Road to either the secondary staging area or will go directly to the pipeline right-of-way on top of the Mesa. Garden Gulch Road is the primary Access Road for this project. • Access Points (AP) — Entrance from designated access roads to the pipeline right-of-way and staging areas is limited to specific Access Points. Access Points are shown on the Access Road Map. The following table lists each Access Point and its corresponding point on the pipeline alignment. 20" Mainline Extension AP# Station Access Road 1 0+82.0 Road 2 23+05.5 Berry Pad 3 54+12.9 Road 4 81+72.8 Road 5 89+17.6 Road Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 9 of 19 10" Haystack Lateral AP# Station Access Road 1 2 3 4 5 6 7 8 9 10 11 0+00.0 0+00.0 35+87.6 56+29.6 62+54.2 80+86.8 103+90.2 152+82.7 166+18.8 168+48.6 234+42.6 Road Road Access Road 3 Access Road 4 Access Road 5 Access Road 6 Access Road 7 Access Road 8 Access Road 9 Access Road 10 Road 10" Garden Gulch Lateral AP# Station 1 0+39.3 2 20+36.2 3 44+15.8 4 82+34.3 5 100+61.4 6 105+97.8 7 120+59.6 Access Road Road Access Point #2 Access Point #3 Access Point #4 Access Point #5 Access Point #6 Access Point #7 • Estimate Traffic Flow — The majority of the traffic outlined above can be expected between the hours of 7:O0am and 8:OOam and from 5:30pm to 6:30pm. There will be 114 pickup trucks, welding trucks, X -Ray trucks, etc., along with 10 large heavy hauling type vehicles during that time. One may anticipate 8 large capacity vehicles during the stated times. As many vehicles and equipment will be left at the secondary staging area as possible when not in use. Proiect Survey And Pre -construction Staking - Prior to the construction of the proposed project, numerous pre -construction activities will be completed. These activities include, but are not necessarily limited to, land surveying, selection of Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 10 of 19 final pipeline alignment and facility locations, coordination with land owners and other affected interests, coordination with users of existing utility corridors, procurement of ROW, acquisition of permits, finalization of engineering design, procurement of materials, and selection of construction contractors. Additional surveys will be conducted for construction staking purposes. Permission will be obtained, as necessary, prior to entering a property to conduct a survey. Pre -construction staking designates the centerline and outside ROW boundaries. These and the extra construction widths will be staked and flagged at 200 -foot nominal intervals or at other appropriate spacing required by conditions. Known existing utility locations will be flagged where the pipeline parallels or crosses existing utility corridors to avoid damage and disturbance. Additional staking will be provided as needed at meter stations, pigging facilities, side valves and other appurtenant facilities. The limits for all construction staging areas and the location of access road entry points will be suitably staked and flagged. Project Drawings, Engineering Specifications And Standards - Project drawings to be prepared for the work will include the following: • Pipeline alignment sheets • Mechanical flow diagram • Fabrication drawings • Crossing and permit drawings • Construction and environmental detail sheets • Other special detail drawings as needed. The design and construction of the pipeline system will be in accordance with applicable regulations, recognized industry codes and the normal and customary practice for this type of facility. These regulations and codes include the latest accepted editions of 49 CFR 192 Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards and ASME B31.8 Gas Transmission and Distribution Piping Systems. The provisions of any permit or license issued by controlling agencies providing a required approval for the project will also be considered a controlling standard for the project. Clearing And Grading - Vegetation will be cleared and the construction ROW graded to provide for safe and efficient operation of construction equipment and to provide space for temporary storage of spoil material and salvaged topsoil. In general, the width of the ROW clearings will be kept to a practical minimum to avoid undue disturbance. Brush clearing will be limited to trimming and/or crushing to avoid disturbance of root systems. Al! brush and other materials that Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 11 of 19 are cleared will be windrowed along the ROW. Where necessary, all brush and other debris cleared will be disposed of in accordance with instructions from the jurisdictional agency or landowner and all applicable laws and regulations. Topsoil removed during the clearing and grading operations will be segregated from subsoils. At a minimum, the first 6 -inches of surface soil would typically be separated. These topsoils will be preserved for subsequent restoration activities on the ROW. Three approaches to topsoil removal are provided in this project. These include: 1) full ROW width topsoil removal; 2) trench and spoil area only topsoil removal and 3) blade width only topsoil removal. ROW section details of these topsoil removal methods are provided in the project Construction and Environmental Detail Drawings. The method of topsoil removal to be utilized on the project may vary from location to location. This will depend upon landowner desires, government agency stipulations, conditions encountered on the ground during construction, advisement of any soil & reclamation specialist employed or involved on the work, and the preferences and requirements of the contractor in regard to his adopted plan for successful clearing, grading, restoration, reseeding and reclamation of the project. Grading of the construction area will be performed in order to create a suitable work surface for construction vehicles and heavy equipment. On flat to mildly or moderately sloping terrain, a uniform work surface will be graded across the entire ROW. A bi-level work surface may be necessary in more sloped areas. ROW section details for side hill bi-level construction are shown in the project Construction and Environmental Detail Drawings. Side hill cuts will be kept to a minimum to ensure resource protection and a safe, stable surface for heavy equipment use. When required by controlling agency or the landowner, construction activities will not be conducted during conditions when the soil on the ROW or access roads are too wet to adequately support construction equipment. In such instances and where construction equipment creates excessively deep ruts, construction activities will be discontinued until soil conditions improve. All survey monuments located within the ROW will be protected during construction activities. Survey monuments include, but are not limited to, General Land Office and BLM Cadastral survey corners, reference corners, witness points, U.S. Coastal and Geodetic Survey benchmarks and triangulation stations, military control monuments, and recognizable civil survey monuments. In the event of obliteration or disturbance of any of the above, the incident will be duly reported. Where such monuments are obliterated during construction, the services of a registered land surveyor will be employed to restore the monuments Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 12 of 19 in accordance with established procedures. Each such survey would be duly recorded with the appropriate county and other jurisdictional agencies. Trenching - Pipeline burial depths will be in conformance with the requirements of 49 CFR 192 Pipeline Safety Regulations or ASME B31.8. Occasionally, the ditch will be excavated to depths greater than the general values specified. Such instances include where the ditch will be excavated to pass beneath railroads, roads, streams, drainages and other obstructions. As a minimum, the ditch will be excavated to a depth to allow a clearance of 24 inches between the project pipeline and other pipelines or underground facilities. Machine excavation will not be performed closer than 5 feet from any existing pipeline, communications cable or other such buried facility encountered in the ROW. Existing pipeline locations will be marked in the field and 48-hour prior notification given to the pipeline or other underground utility operator. Construction methods employed to excavate a trench will vary depending on soils, terrain, and related factors. Self-propelled trenching machines will be used where possible. Conventional mechanical backhoes will be used on steep slope areas, unstable soils, high water table, and where deep or wide trenches are required. Where rock or rock formations are encountered, tractor -mounted mechanical rippers or rock trenching equipment may be used to facilitate excavation. In areas where rippers or trenchers are not practical or sufficient, blasting may be employed. Strict safety precautions will be taken when blasting. Backhoes will then be used to clean the ditch after ripping or blasting. Unless otherwise required and agreed upon, pipeline crossings of non -surfaced, gravel, lightly traveled, and rural roads will be made using open trench "cut and cover" methods with mechanical ditching machine or backhoe. Installation at these locations, including cleanup and restoration of road surfaces, will usually be completed within one day. Provisions will be made to detour or control passage of traffic during the construction. Boring & Drilling— Not applicable. Pipe installation - Pipe will be shipped directly from a manufacturer or supplier by rail and truck to offsite storage sites and then be hauled by truck to the pipeline ROW. Each individual joint of pipe will be unloaded by cranes or tractors equipped with side booms and slings, and strung parallel to the ditch. Sufficient pipe for road crossings will be stockpiled at staging areas near the crossing. Stringing operations will be coordinated with trenching and installation activities in order to properly manage the construction time at a particular tract of land. Gaps will be left at access points across the ditch to allow crossing of the ROW. As construction proceeds, some of the pipe and stringing equipment will be Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 13 of 19 temporarily stored at approved staging and extra workspace areas along the ROW. After the joints of pipe are strung along the ditch but before the joints are welded together, individual joints of the pipe will be bent to accommodate horizontal or vertical changes in direction. Such bends will be made utilizing an approved cold, smooth bending machine having a hydraulically operated shoe that makes the bend. Where the deflection of a bend exceeds the allowable design limits for field -bent pipe, shop fabricated pieces (induction or "hot bends") or trimmed segmentable forged fittings will be installed. After the pipe joints are bent, the pipe is lined up end-to-end and clamped into position. The pipeline will then be welded in conformance with 49 CFR Part 192, Subpart D, "Construction", ASME B31.8 and API 1104, "Standard for Welding Pipelines and Related Facilities," latest edition. Welds will be visually inspected by a qualified inspector and will be subject to radiographic inspection in conformance with DOT requirements. A specialized contractor certified to perform radiographic inspection will be employed to perform this work. Any defects will be repaired or removed as required under the specified regulations and standards. Project specifications will require that the pipe be externally coated with fusion bonded epoxy coating prior to delivery. After welding, field joints will be coated with either a tape wrap or shrinkable sleeve wrap. Before the pipe is lowered into the ditch, the pipeline coating will be visually and electronically inspected and any detected faults or scratches will be repaired. Backfillinq - Once the pipe coating operation has been completed, the pipeline will be lowered into the ditch. Side -boom tractors will be used to simultaneously lift the pipe, position it over the ditch, and lower it in place. Inspection will be conducted to verify that minimum cover is provided, the trench bottom is free of rocks/debris/etc., external pipe coating is not damaged, and the pipe is properly fitted and installed into the ditch. In rocky areas, padding material or a rock shield will be used to protect the pipe. Backfilling will begin after the pipeline has been successfully placed in the ditch and final inspection has been completed. Backfilling will be conducted using a bulldozer, rotary auger backfiller, or other suitable equipment. Backfill will generally consist of the material originally excavated. In some cases, backfill material from other areas (borrow material) may be needed. Backfill would be graded and compacted, where necessary for ground stability, by being tamped or walked in with a wheeled or track vehicle. The soils will be replaced in a sequence and density similar to pre -construction conditions. Subsoils will be backfilled first, followed by replacement of stockpiled topsoil. Once the Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 14 of 19 excavation has been filled and compacted, the topsoil would typically be crowned in a berm, 12 -inches -high or less, and tapered outward from the center and/or spread uniformly over the disturbed ROW. The material in the berm is intended to compensate for normal settling of backfilled materials. Any excess excavated materials or materials unfit for backfill will be properly disposed of in conformance with applicable laws or regulations, and landowner or jurisdictional agency requirements. Where possible, these surplus materials will be spread out over the ROW to avoid off-site disposal. Where required by controlling agencies, landowners, other situations and good cause, controlled compacted backfill will be placed at road crossings and other such locations. Backfill material to be placed shall be inspected and determined suitable for use by a qualified person. The backfill shall be placed at a controlled water content range in level uniform layers not exceeding 8 -inches compacted thickness. The resulting backfill density shall not be less than 90% maximum density (or higher if prescribed by permit, agency or landowner) as determined by an established AASHTO or ASTM procedure. Testing - The entire pipeline will be tested without leakage in compliance with 49 CFR Part 192 Subpart E, ASME B31.8 and company operating procedures. This will be accomplished through pressure test with a nitrogen medium. Cleanup and Restoration - Upon completion of backfilling, construction work will commence to clean up, restore, and re -vegetate the ROW. Efforts will have be taken during the prior work to minimize erosion, restore the natural ground contour, account for trench settling, re-establish plant growth, and allow natural surface drainage. As agreed with the landowner or controlling agencies, all completed construction areas and temporary access roads will be returned as nearly as possible to their original condition and service. All restoration and re - vegetation will be completed to the satisfaction of the landowners, controlling agencies and other recognized parties. First, any trash, brush, surplus material, or other debris will be cleared from construction areas and disposed of in an appropriate manner. The ROW will then be graded and restored to nearly pre -construction grades. Final restoration of disturbed areas will be accomplished by whatever means are most suited for the particular soils, terrain, vegetation and climate at a specific site. In general, waterbars will be constructed to prevent erosion of unconsolidated soils and provide drainage away from the disturbed area and into existing washes or drainages. Where deemed appropriate, slash will be used to control erosion. Where necessary, terracing or other erosion control techniques may be employed. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 15 of 19 Reseeding will be accomplished using seed mix or plant species approved by the landowners or controlling agencies. Seedbed preparation and seeding operations will be conducted in accordance with accepted techniques for the particular area and task. In areas with difficult reclamation problems, restoration and re -vegetation will be considered a special management problem and will be resolved in coordination with the landowner and the respective authorities involved. Advice may be sought from specialty agencies or environmental consultants to fully determine the appropriate mitigation and reclamation measures needed. Residential Areas And Private Property - The construction ROW will not be located within 50 feet of a place of residence or similar use. Livestock Issues - Prior to construction, concerns and issues of landowners, lessees and controlling agencies in regard to pipeline construction and livestock will be solicited and considered. Stipulations, requirements and reasonable requests developed from such inquires will be incorporated in the work. As a minimum, the following will be established for the work: • Fences crossing the ROW will be braced, cut, and temporarily fitted with gates to permit passage. • During construction, the openings will be controlled as necessary to prevent the escape of livestock. • Existing fences will be replaced and braces left in place upon completion of construction activities. • During construction, no gates or cattle guards on established roads over public or private lands will be obstructed or damaged by construction activities. • Adequate precautions will be taken to ensure that livestock and wildlife will not be prevented from reaching water sources because of open ditches or pipe strung along the ditch. Such precautions will include contacting livestock operators, providing adequate crossing facilities, or other measures as needed. • All damaged livestock facilities will be repaired or replaced to a condition as good as or better than the pre -construction condition. The final facilities shall be acceptable to the landowner, lessee or other authorized person. Temporary fences shall be installed if original fences affected by the work do not provide adequate livestock control. • Temporary fences or other barriers shall be installed if pipeline construction destroys or eliminates natural barriers. Replacement of the natural barrier is desired upon the completion of construction if practical. Permanent fencing or artificial barriers shall be used if the natural barrier cannot be reasonably restored. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 16 of 19 Health and Safety - The following health and safety measures shall be made a requirement of the pipeline construction work: • Special precautions shall be taken when working on pipeline segments parallel to, crossing or near high voltage overhead electric power transmission lines. These precautions shall include: o Measuring the pipe -to -ground voltages on pipe sections each day at the commencement of work, prior to work involving pipe contact and when directed by a qualified person, o Rubber tired vehicles operating on a common pipeline and powerline ROW area shall be strap grounded to mitigate capacitive coupling. Grounding shall be made using a metal chain or conductive strap connected to the vehicle frame and contacting the ground. o Vehicles shall not be refueled on or near a electric powerline ROW. o The pipeline contractor shall coordinate with affected utilities to avoid utility disruptions. • A fire prevention and suppression plan shall be developed and implemented for the work. • When required, a job specific blasting plan shall be developed and implemented for the work. • Nighttime construction will be permitted as this proposed right-of-way is remote. • No camping will be allowed on the pipeline ROW. • When required, watering and other means of dust control will be provided. Dust control within 500 feet of residences, public roads and other gathering places will be diligently implemented and maintained. Standards and regulations pertaining to air quality emissions including particles other than dust will be made requirements of the project work. • Trenches left open overnight and within 250 feet of a residence, office building, commercial or industrial business site or similar area shall be fenced or barricaded to mitigate safety concerns. • All equipment used in the work shall be properly equipped and maintained to ensure compliance with applicable health, safety and environmental regulations. Waste Disposal and Sanitation - The following measures will be implemented and enforced in the performance of the project work: • Littering of any kind will not be allowed on the ROW. A daily litter -policing program will be employed in the work. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 17 of 19 • Construction and operating sites will be maintained in a clean and sanitary condition at all times. Collected wastes will be disposed of promptly at an approved site. • 'Waste" means all discarded matter, including but not limited to, human waste, trash, garbage, refuse, oil and fuel drums, petroleum products, blasting boxes, worn out parts, abandoned equipment, leftover materials, etc. • Excess or unsuitable materials will be returned to the supplier, sold to a commercial salvage yard, turned in at commercial recycling center or delivered to public or private disposal site approved for project use. • Special implementation plans prepared for and made part of the work will be maintained and followed for the duration of the work. Such plans may include Hazardous Materials Management Plan, Spill Prevention and Countermeasure Plan and others. • Portable chemical toilets will be provided and dispersed within the project area. Their number and location will vary with the length of the project, the number of workers present and the work phase of the project. Generally, a portable toilet will be provided at each contractor yard, pipe yard or permanent staging area. Other criteria not withstanding, a portable toilet will be provided for each 40 people or fraction thereof employed on the work. • Human wastes stored in portable toilets will be removed from the ROW on a regular periodic basis according to the capacity of the units and their monitored usage. Such human waste will be disposed of at an approved location in accordance with applicable laws and regulations. 8. DESIGN SPECIFICATIONS — All work contemplated in this project shall be performed under the supervision and responsible charge of a Colorado professional engineer and a Colorado professional land surveyor. The controlling standards for the design and construction of the work will be the U.S. Department of Transportation Pipeline Safety Regulations 49 CFR 192 Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 18 of 19 9. SOIL CONSERVATION, SEDIMENTATION AND EROSION CONTROL PLAN The following Stormwater Management Plan is attached: A. Enterprise Storm Water Management Plan- Piceance Basin Gathering System- Colorado Discharge Permit System- Stormwater Certification No: COIR -03D733. This permit includes the Marathon Gathering System Pipeline construction, the Jackrabbit Compressor Station and the Jackrabbit Extension and Laterals. 10. HAZARDOUS MATERIALS MANAGEMENT & SPILL PREVENTION A. Spill Prevention Control and Countermeasures Plan- NE NE Sec 33, T7S, R96W dated April 2009. This plan will apply to the 7 acre and 21 acre Staging Areas. Garfield County Development Plan Jackrabbit Extension and Laterals Enterprise Gas Processing, LLC Page 19 of 19 Enterprise Products Operating LLC. Enterprise Storm Water Management Plan Piceance Basin Gathering System Garfield County, CO September, 2008 Storm Water Management Plan Prepared for: Enterprise Products Operating, LLC 1100 Louisiana Street Houston, Texas 77022 September, 2008 Prepared by: HRL Compliance Solutions, Inc. 744 Horizon Ct. # 140 Grand Junction Co 81506 TABLE OF CONTENTS 1.0 INTRODUCTION .1 1.1 Storm water Runoff Permitting Requirements 1 2.0 CONSTRUCTION SITE DESCRIPTION 2 2.1 Site Location 2 2.2 Site Area Characteristics 2 2.2.1 Runoff Characteristics .2 2.2.2 Existing Vegetation .3 2.3 Schedule of Construction Activities .4 3.0 POTENTIAL POLLUTION SOURCES 6 4.0 DESCRIPTION OF SOIL CONTROL MEASURES .7 4.1 Structural Practices for Erosion and Sediment Control 7 4.1.1 Straw Bale and Rock Check Dams 7 4.1.2 Straw Wattles/Straw Rolls ...7 4.1.3 Diversion Ditches 8 4.1.4 Road Bar Ditches 8 4.1.5 Culvert Inlet/Outlet Protection 8 4.1.6 Sediment Basins 8 4.2 Non -Structural Practices for Erosion and Sediment Control 8 4.2.1 Vegetative Buffers 8 4.2.2 Seeding of Disturbed Areas .9 4.2.3 Mulching 9 4.2.4 Erosion Control Blankets 9 5.0 PHASED BMP IMPLEMENTATION ..10 5.1 Construction 10 5.2 Interim Reclamation 11 5.3 Final Stabilization 12 6.0 MATERIALS HANDLING AND SPILL PREVENTION 13 6.1 Waste Management and Disposal .13 6.2 Fuels and Materials Management 13 6.3 Construction Site Housekeeping ..14 7.0 DEDICATED CONCRETE OR ASPHALT BATCH PLANTS 15 8.0 VEHICLE TRACKING CONTROL 16 9.0 INSPECTION AND MAINTENANCE PROCEDURES 17 10.0 NON-STORMWATER DISCHARGES 19 11.0 CERTIFICATIONS 20 11.1 Owner/Applicant Certification 20 11.2 Storm water Management Plan Administrator. 21 12.0 ADDITIONAL BMP REFERENCE 22 13.0 SNOW REMOVAL 23 13.1 BMP Locations for Snow Removal 24 LIST OF APPENDICES Appendix A Site Maps Figure 1 Proposed Pipeline Figure 2 Proposed Compressor station Appendix B Storm water Application Form and Permit Appendix C Storm water Inspection Form Appendix D BMP Descriptions and Installation Details Appendix E . Project Seed Mixes Appendix G Snow Removal Site Specific Table 1 Site Descriptions Table 2 SWMP Revisions Enterprise Products Operating, LLC. SWMP 1.0 INTRODUCTION This Storm Water Management Plan (SWMP) is written to comply with the Colorado Department of Public Health and Environment's (CDPHE) General Permit No. COR -03000(1) issued on July 1, 2007 and will expire on June 30, 2012, and related U.S. Environmental Protection Agency (USEPA) National Pollutant Discharge Elimination System (NPDES) storm water regulations. This SWMP addresses construction activities associated with the construction of the Pipeline Right of Ways (ROW) between well pads in the Piceance Basin, a materials staging yard for the construction subcontractor in the proximate area and a compressor station. This SWMP is intended to be periodically updated as needed to address planned developments, new disturbances, and other changes needed to manage storm water and protect surface water quality. This SWMP is written to contain general storm water management practices, as well as site specific information related to specific construction activities. Site specific information (i.e. Phased Best Management Practices (BMP) Implementation, Potential Pollution Sources, Final Stabilization Measures, etc.) found throughout the text of this document is also referenced in Table 1, Site Descriptions. 1.1 Storm Water Runoff Permitting Requirements The Federal Clean Water Act [Section 402(p)] requires that discharges of pollutants to waters of the United States from any point source be regulated by NPDES permits. In November 1990, the USEPA published final regulations that established application requirements for storm water associated with construction activity for soil disturbances of 5 acres or more be regulated as an industrial activity and covered by an NPDES permit. In December 1999, the USEPA published final Phase II NPDES regulations that established application requirements for storm water associated with construction activity for soil disturbances to be regulated as an industrial activity and covered by an NPDES permit. These regulations became effective July 1, 2002, and were amended in 2007. Storm water construction permits are required for oil and gas activities that disturb 1 or more acres during the life of the project, or are part of a larger common plan of development. CDPHE considers a common plan of oil and gas development to mean development of several well pads, access roads, pipelines, and/or other related infrastructure in a contiguous area either during the same time period or under a consistent plan for long-term development. Enterprise Products Operating will be in charge of all aspects of this project Contractor(s) will do the actual construction and grading but all work will be supervised by Enterprise Products Operating and all decisions will be made by Enterprise. p)Amendment: Amendment Letter to State. RE: COR -03C052. A letter of amendment was submitted to CDPHE on 02/04/2009, for portions of permit COR -03C052 to be recognized under the Piceance Basin Gathering System Storm Water Management Plan operating under the permit COR -03D733. Portions are illustrated on the map attached with the letter of amendment, submitted on 2/4/2009. (2) Amendment: A courtesy amendment letter to CDPHE submitted 05/2009, for additional pipeline project to be recognized under the Piceance Basin Gathering System Storm Water Management Plan operating under the permit COR -03D733. Portions are illustrated on the map attached with the letter of amendment, submitted on 2/4/2009. 1 Enterprise Products Operating, LLC. SWMP 2.0 CONSTRUCTION SITE DESCRIPTION 2.1 Site Location Pipeline(s) and Laydown/Materials Yard(s) The Project Areas are located in Garfield County, Colorado, as follows: Jackrabbit Pipeline Project: • Township 5 S, Range 96 W, Sections 7, 8, 17, 18, and 29-33. • Township 6 S, Range 97 W, Sections 1, 2, 11-14, and 23-24, Jackrabbit 20" Extension: • Township 6 S, Range 97 W, Sections 13, 14, 23, and 24. Garden Gulch Lateral: • Township 6 S, Range 97 W, Sections 1, and 12. • Township 6 S, Range 96 W, Section 6 Haystack/Cascade Laterals: • Township 6 S, Range 97 W, Sections 21-24, 25, 26, 28, 35; • Township 7 S, Range 97 W, Sections 1, 2, 11, and 12; Pipeline laydown yards as follows: 21 acre laydown yard: • Township 8 S, Range 96 W, Section 5-6, 7 acre laydown yard: • Township 7 S, Range 96 W, Section 33. Pipe Yard (Meeker): • Township 01 N, Range 93 W. Section 18 64 Yard: • Township 02 N, Range 96 W, Section 31 The pipeline sites are approximately 10 miles north on County Road 215, and 1/4 mile west on Garden Gulch Road in an area that is currently used for oil and gas exploration and production activities. See Appendix A for site map. The laydown yards are located near Parachute, Meeker and the intersection of State Highways 5 and 64. See Appendix A for site reference Maps Receiving waters include; West Fork Parachute Creek, unnamed tributaries of Willow Creek, Bear Run, Little Creek, House Log Gulch, Circle Dot Gulch, Sheep Kill Gulch, Corral Gulch, McKay Gulch, Red Gulch, Cascade Canyon, Garden Gulch, Parachute Creek, several unnamed ephemeral and intermittent drainages and the Colorado River. The ultimate receiving water is the Colorado River. Refer to Appendix A for the Site Maps with identified hydrological and disturbed area boundaries. Compressor Station Compressor station is located in Township 5 S, R 96 W, Section 33, SW 1/4, in Garfield County. The community of Parachute is the nearest population center approximately 10 miles southeast. 2 Enterprise Products Operating, LLC. SWMP Receiving waters include West Fork Parachute Creek, House Log Gulch, and Red Dot Gulch. The ultimate receiving water is the Colorado River. Refer to Appendix A for the Site Maps and disturbed area boundaries. 2.2 Site Area Characteristics 2.2.1 Runoff Characteristics and Coefficient Runoff characteristics are based on site topography, soil type, and soil/vegetative cover. Drainage across the pipeline will vary along the length of the pipeline. Elevation ranges from 6,500 feet to 8,700 feet. Soils identified on this Project are highly erosive in nature, individual soil descriptions can be found below. The structural and nonstructural BMPs as outlined in this SWMP are specifically detailed to minimize erosion and sediment transport. According to the Natural Resources Conservation Service (NRCS), the soil types within the ROW of this Project consist of ten general soil units. • Parachute-Irigul-Rhone (25 to 50% slopes): Mountain and ridge tops, Elevation for these soils ranges from 7,600 to 8,800 feet. Permeability is moderate in both the Irigul soil and the Parachute soil. The water capacity is very low. Runoff is rapid and erosion severe • Parachute -Rhone loams (5 to 30% slopes): Ridge crests, upland slopes, mountain sides. Elevation for these soils ranges from 7,600 to 8,600 feet. The available water capacity is very low. Permeability is moderate in the Rhone soil. The available water capacity is also moderate. Runoff is medium or rapid and erosion is moderate to very severe. • Parachute-Irigul complex (5 to 50% slopes): Mountainsides and footslopes and in swales. Elevation for these soils ranges from 7,700 to 8,400 feet. Permeability is moderate and the water capacity is moderate to low. Runoff is medium or rapid, water erosion is severe. • Parachute-Irigul-Rhone association (25 to 50% slopes): Mountain tops, ridges, crests and sides of hills. Elevation ranges from 7,600 to 8,800 feet. Permeability is moderate and water capacity is very low. Runoff is rapid and water erosion is very severe. • Parachute -Rhone loams (5 to 30% slopes): Ridge crests, mountainsides, upland slopes and side slopes. Elevation ranges from 7,600 to 8,800 feet. Permeability is moderate and water capacity is very low. Runoff is medium or rapid. Water erosion is moderate to very severe. • Parachute Loam (25 to 65 % slopes): North and east facing mountain sides. Elevation ranges from 7,500 to 8,700 feet. Permeability is moderate. Runoff is medium. Water erosion is moderate. • Potts loam (3 to 6 % slopes): Found on Mesa's benches, sides of valleys. Elevation ranges from 5,000 to 7,000 feet. Permeability is moderate, surface runoff is slow. Erosion is moderate. • Potts-Lidefonso complex (3 to 12% slopes): Found on Mesas, sides of valleys. Elevation ranges from 5,000 to 6,500 feet. Potts permeability is moderate, surface runoff is slow, erosion is moderate. Lidefonso permeability is moderately rapid, erosion is moderate. 3 Enterprise Products Operating, LLC. SWMP • Silas loam (3 to 12 %); Bottom land of mountain valleys. Elevation ranges from 7,600 to 8,300 feet. Permeability is moderate, surface runoff is slow, erosion is slight. • Villa Grove-Zoltay loams (15 to 20%): Mountain sides and alluvial fans. Elevation ranges from 7,500 to 7,600 feet. Villa Grove soil is found I steeper areas. Permeability is moderately slow, surface runoff is slow, and erosion is slight. Zoltay permeability is slow, surface runoff is medium erosion is moderate 2.2.2 Existing Vegetation Native vegetation in the higher elevations consists of Gambel Oak, Pinyon, Juniper, Aspen, Serviceberry, Snowberry, Elk Sedge, Bromes, needlegrasses, Lupine, and a variety of vetches. Vegetation in the lower elevations consists of Bitterbrush, Shadescale, Saltbush, Greasewood, Yucca, Galleta grass, and Sagebrush. Vegetative cover varies from 40% to 100% depending on site specificity. 2.3 Schedule of Construction Activities Pipeline(s1 Construction activities covered by this SWMP are expected to last approximately 5 years. Construction activities will include the Jackrabbit Pipeline Project disturbing approximately 341.1 acres, Jackrabbit 20" Extension pipeline- disturbing approximately 15.9 acres, Garden Gulch lateral pipeline- disturbing approximately 25.5 acres, Haystack lateral pipeline- disturbing approximately 45.8 acres, and the Cascade lateral pipeline- disturbing approximately 33.0 acres. The scope of this project covers the construction and installation of 4 -inch, 6 -inch, 10 -inch, 16 - inch and 20 -inch natural gas lines, two laydown yards to store material associated with the pipeline, and the 7 acre laydown area. The main objective of these projects is to construct gathering pipelines and trunk lines that are necessary to transfer gas from Marathon Oil Company's (Marathon) production wells to their main gas lines. Activities associated with construction of the Project that may affect storm water include clearing and grading; access road modifications; vehicle operation, maintenance and fueling; coating pipe joints; and possible herbicide application to control noxious weeds. The locations for the proposed and existing Pipeline Right(s) of Way and the construction staging have mixed ownership of public and private parcels. The staging yard is operated by the construction subcontractor Barnard Pipeline Inc., (Barnard). Refer to the Appendix A site maps for location of pipeline(s), laterals, compressor station and laydown yards. Amendment: A 4 inch polypropylene flex water line will be included in the construction installation of this pipeline. Amendment: The addition of multiple lateral pipeline projects will include three 10 inch laterals and one 20 inch extension. Compressor station 4 Enterprise Products Operating, LLC. SWMP The compressor station project will disturb approximately 18 acres. Construction activities covered by this SWMP are expected to Iast approximately 5 years. The scope of this project covers construction and BMPs that will be installed prior to, during, and immediately following construction as practicable, with considerations given to construction staging, safety, access, and ground conditions at the time of construction. Soil and aggregate materials will be managed so that erosion and sediment transport are minimized. Nearby drainages and water courses will be protected in all cases by appropriate measures. Activities will include the development of pipeline ROW between well pad sites and maintenance of the construction staging area and the construction of the Jackrabbit compressor station. The construction site is surveyed and staked. The construction site will be cleared and grubbed, as applicable. Topsoil and/or other materials are salvaged or stockpiled as necessary. All stock piles will have storm water BMPs implemented to reduce sediment transport and erosion of top soil. Temporary seeding will occur. Sediment Basins, rock check dams and erosion control blankets will be implemented along the length of the pipeline to eliminate sediment transport. Diversion ditches, sediment basins, and Geotextile matting will be used as sediment control at the compressor station location. Road side ditches will be constructed where necessary to convey water along access roads. Check dams may be used in ditches to dissipate water flow energy. Facilities, roads and staging areas will be constructed utilizing standard cut -and -fill methods. Additional BMPs that may be needed include; but are not limited to; diversion ditches, sediment basins, retention ponds, swales or sediment traps. The laying of the pipe line process will include ditching and the installation of lines. Ditched material will be stockpiled up gradient of the trench, where feasible, to reduce the potential of sediment transport, and stock pile erosion. Open ditches will be backfilled as soon as feasible. Seeding and soil stabilizing will occur as construction of the pipeline is completed. Each activity in the project will be under routine inspection until final stabilization has occurred. Construction is expected to begin in the fall of 2008 through 2013. An inactivation notice will be filed for the Project once all of the construction activities have been completed and all areas have reached final stabilization as described in section 5.3. Laydown yards There will be four laydown yards associated with the pipeline project: A 7 acre laydown yard located west of Parachute, a 21 acre laydown yard located 2.8 miles west of the 7 acre yard, a laydown yard off of Highway 64 and a pipe -yard located north of Meeker off of Highway 13. The construction site will be cleared and grubbed, as applicable. Topsoil and/or other materials are salvaged or stockpiled as necessary. All stockpiles will have storm water BMPs put in place to reduce sediment transport and erosion of top soil. Temporary seeding will occur on all topsoil stockpiles. Temporary BMPs will be put in place to eliminate sediment transport. Amendment: The addition of the 21 acre laydown yard and the laydown yard off of Highway 64 will be included as laydown yards for this project. 5 Enterprise Products Operating, LLC. SWMP 3.0 POTENTIAL POLLUTION SOURCES Potential pollution sources associated with construction of the Project include: • Sediment resulting from erosion of soil stockpiles and other areas cleared of vegetation • Leakage of fuels and lubricants from equipment and spills from fueling or equipment failure. • Trash and debris from clearing activities, construction materials, and workers • Sanitary sewage associated with portable toilets • Produced water • Glycol • Condensate • Concrete washout activities related to the compressor station. The most common source of pollution from construction is sediment, which can be carried away from the work site with storm water runoff, and ultimately impact the water quality of a receiving waters. Clearing, grading, and otherwise altering previously undisturbed land can increase the rate of soil erosion over pre -disturbance rates. Petroleum products can also be potential storm water pollutants. These products are used in construction activities to power or lubricate equipment and include: fuel, gear oil, hydraulic oil, brake fluid, and grease. Debris from lay -down areas, residue from equipment cleaning and maintenance, and solid waste generated from land clearing operations and human activity (trees, brush, paper, trash, etc.) present other potential pollution sources within the construction site. For site specific potential pollution sources, refer to Table 1(Site Descriptions). For locations of potential pollution sources, refer to Appendix A (Site Map). Concrete washout activities are expected to be installed as illustrated in Appendix A, Figure 2. All BMPs implemented throughout the project are intended to mitigate for the release of sediment and all other potential pollution sources described above, and listed in Table 1. Refer to Appendix A for site specific locations of potential pollution sources, and locations of BMPs implemented to mitigate for the potential release of the respective potential pollutants. Enterprise Products Operating spill prevention and response policies must be followed and include the following: • Notification procedures to be used in the event of a material release or accident. At a minimum, the field supervisor should be notified. Depending on the nature of the spill and the material involved, Enterprise corporate staff, the CDPHE, downstream water users, or other agencies may also need to be notified. The WQCD toll-free 24-hour environmental emergency spill reporting line is (877)518-5608. • Provisions for absorbents are to be made available for use in fuel areas. 6 Enterprise Products Operating, LLC. SWMP 4.0 DESCRIPTION OF SOIL CONTROL MEASURES The objective of erosion sediment controls is to minimize the release of sediments, and any other potential pollutants, by storm water runoff. This can be accomplished through the use of structural and/or nonstructural controls. This section describes erosion and sediment controls to be used during the pipeline, laydown yard and compressor station construction to minimize possible pollutant impacts to storm water runoff. Refer to Appendix D for implementation details of soil control measures. Refer to Appendix A for locations of soil control measures. 4.1 Structural Practices for Erosion and Sediment Control Structural practices implemented to provide for erosion and sediment control can include temporary and permanent Best Management Practices (BMPs). Temporary structural BMPs include, but are not limited to, straw bale barriers/check dams and straw fiber rolls/wattles. When applicable, temporary BMPs will be implemented during construction and interim reclamation phases. All temporary BMPs will be removed and disposed of upon Final Stabilization. Permanent structural BMPs include, but are not limited to earthen berms, drainage dips, bar ditches, diversion ditches, sediment basins, culvert inlet/outlet protection, and rock check dams. 4.1.1 Straw Bale and Rock Check Dams Straw bale and rock check dams will be installed in areas of concentrated flow. The purpose of a check dam is to reduce the velocity of water enough to allow sediment to settle, while allowing the clean water to continue migrating. Some sediment will accumulate behind the check dam. Sediment should be removed from behind the check dams when it has accumulated to one-half of the original height of the dam and properly disposed of. Check dams will be inspected for erosion along the edges of the check dams and repaired as required immediately. For temporary ditches and swales, check dams should be removed and the ditch filled in when it is no longer needed. 4.1.2 Straw Wattles/Straw Rolls Straw rolls/wattles are intended to capture and keep sediment on a disturbed slope. Straw rolls are useful to temporarily stabilize slopes by reducing soil creep and sheet and rill erosion until permanent vegetation can be established. Straw rolls will last an average of one to two years. The slope needs to be prepared before the rolls are placed. Small trenches are created across the slope on the contour. The trench should be deep enough to accommodate half the thickness of the roll (about 3"-5"). The trenches need to be 10 to 25 feet apart. The rolls need to be installed perpendicular to water movement, parallel to the slope contour. Start by installing rolls from the bottom of the slope. The rolls need to fit snugly against the soil. No gaps should be between the soil and roll. Willow, wooden stakes, or staples need to be driven through the roll and into the soil. There should only be 1 to 2 inches of stake exposed above the roll. The stakes should be installed every 4 feet. Enterprise Products Operating, LLC. SWMP 4.1.3 Diversion Ditches Diversion ditches can be a temporary or permanent structural BMP installed to direct runoff or run-on storm water away from construction activity. Ditches slow velocity of water, and direct water into sediment basin, or other BMP structure designed to capture sediment while allow water to move through. 4.1.4 Road Bar Ditches Bar ditches are permanent structural BMPs installed at the base of an access road crown. Bar ditches may be installed on one or both sides of the access road, depending on construction specifications of the road. Roadside bar ditches shall be constructed to conform to the respective road cross section. All bar ditches will be excavated to a minimum depth of 1 foot below the road surface. 4.1.5 Culvert Inlet/Outlet Protection Inlets and outlets of culverts will be protected to prevent sediment build up within the culvert, thus maintaining culvert functionality. Temporary protection, during construction, can be implemented by installing straw bales or straw wattles around the inlet/outlet. For permanent protection, inlets/outlets shall be protected via rock armoring. Sediment accumulated at the inlet/outlet shall be removed as needed to ensure that there will be no blockage of the culvert. 4.1.6 Sediment Basins Sediment basins are structural BMPs installed to trap sediment that has been transported from other BMPs including, but not limited to, berms, perimeter diversion ditches, bar ditches, and drainage dips. Size and shape of each sediment basin shall depend on the specific location and surrounding topography of each site. 4.2 Non -Structural Practices for Erosion and Sediment Control Non-structural practices implemented for erosion and sediment control will consist of permanent BMPs that will be utilized during all project phases, from construction to interim reclamation, and ultimately to final stabilization, Non-structural controls typically include, but are not limited to, vegetative buffers, mulching, seeding of disturbed areas, erosion control blankets, and surface roughening. 4.2.1 Vegetative Buffers Vegetative buffers are areas of existing vegetation stands that are utilized as a permanent BMP. Vegetative buffers are located on any or all edges of a project boundary. They provide a filtering effect by minimizing velocity of storm water runoff enough to allow sediment to settle out, while along clean water to continue with its natural drainage route. 8 Enterprise Products Operating, LLC. SWMP 4.2.2 Seeding of Disturbed Areas Seeding of disturbed areas will be implemented as a measure taken to achieve final stabilization. Upon construction completion, all disturbed areas to undergo reclamation shall be seeded. As a disturbed area is seeded, it will remain in the interim reclamation phase until the site has reached a vegetative cover area of 80% of pre -disturbance conditions. At this point, the site will be at the final stabilization phase. Refer to Appendix E for the Project seed mixes and associate application rates. Seeding will be implemented via a rangeland drill seeder where accessible. In areas where the rangeland drill cannot access seed will be broadcasted and then raked or harrowed to provide adequate seed to soil contact. 4.2.3 Mulching Mulching is a non-structural BMP implemented to aid in seed establishment. After a disturbed area has been seeded, a certified, weed free straw mulch will be applied. Where accessible, the mulch will be crimped into the ground to provideadditional soil stabilization. 4.2.4 Erosion Control Blankets Erosion control blankets are permanent, non-structural BMPs installed on steep slopes to provide soil stabilization and to keep seed in place. Erosion control blankets are a geotextile, biodegradable material that are implemented during the interim reclamation phase. 9 Enterprise Products Operating, LLC. SWMP 5.0 PHASED BMP IMPLEMENTATION The pipeline, laydown yard, and compressor station construction projects will consist of a construction phase, an interim reclamation phase, and a final stabilization phase. The following sections outline specifications of each phase. 5.1 Construction The construction phase of the project will consist of ROW clearing for pipeline construction, clearing, cut and fill procedures for compressor station, and backfilling/general grading. Appropriate BMPs will be installed for this phase of the construction. The following outlines the necessary steps of the construction phase: Pipeline(s) • Vegetation Clearing: Vegetation will be removed and placed in a windrow on the up - gradient edge of the disturbed area when possible. • Topsoil Stripping: Topsoil will be removed and stockpiled in a windrow on the up - gradient edge of the disturbed area when possible. • Trench Excavation: The trench needed for pipeline installation is generally located near the center of the ROW and is created by track -mounted excavators. The trench will be excavated to a depth of 5-7 feet, with the soil being stockpiled via windrow at the up - gradient edge of the trench • Pipe welding and placement: The pipe pieces will be laid beside the trench and welded. Long segments of welded pipe are placed within the trench by sideboom dozers. • Pipe bedding: Trench spoils will be handled by excavators equipped with bedding boxes. The bedding boxes remove larger rocks and the fine material is placed beside, and over, the pipe to prevent potential damage to the pipe. • Trench backfill: Bulldozers will move soil from the trench spoils windrow to backfill the trench. • General grading: If general grading was conducted to facilitate pipeline construction, these materials will be replaced and graded to recreate the pre -construction topography. Compressor station • Vegetation Clearing: Vegetation will be removed and place around edge of disturbed area on down gradient side of fill slope. This will provide a brush barrier BMP for construction. • Straw bale barriers will be installed as a temporary BMP while pad is being constructed. • Concrete and truck washout area will be established once construction begins as illustrated in Appendix A, Figure 2. Appropriate BMPs will be installed for washout. 10 Enterprise Products Operating, LLC. SWMP Laydown yards • Vegetation clearing: Vegetation will be removed and placed around edge of disturbed area on down gradient side of fill slope if new construction occur. This will provide a brush barrier BMP for construction. • Straw bale barriers and/or silt fence will be installed as a temporary BMP while pad is being constructed.. • Topsoil stockpile will be seeded and mulched as soon as weather permits. 5.2 Interim Reclamation Interim reclamation will be the phase of the project between construction and final stabilization. A project will enter into interim reclamation when construction is completed, disturbed areas have been seeded, and permanent BMPs have been installed. Temporary BMPs that were implemented during the construction phase may continue to be maintained during interim reclamation. Projects will remain in interim reclamation until disturbed areas have been reclaimed to 80% of pre -disturbance vegetation or otherwise permanently stabilized (i.e. graveled). The following steps will be taken to reach interim reclamation: Pipeline(s) • Topsoil placement: Topsoil will be moved and redistributed across the surface of the disturbed ROW. • Vegetative material replacement/removal: Based upon landowner requirements, stripped vegetation may be hauled off-site or redistributed along the disturbed ROW. • Seeding: The disturbed ROW will be seeded post construction. The seed mix will vary depending on location and surface ownership and will generally match the surrounding vegetation. Refer to Appendix E for seed mixes and their respective application rate(s). • Mulching: All disturbed areas to be reclaimed will be mulched post seeding. A certified weed free straw will be crimped into the ROW to keep an adequate moisture level in the seedbed. Compressor station • Topsoil will be used as material for swales or berms around the pad location. • Topsoil stockpile will be seeded and mulched immediately. • Permanent BMPs will be installed, and temporary BMPs removed if no longer a viable BMP. Laydown yards • Topsoil stockpile will be seeded to prevent sediment transport, and enhance soil integrity for reclamation. • Temporary BMPs such as silt fence, straw bale barriers and wattles will be replaced with permanent BMPs. 11 Enterprise Products Operating, LLC. SWMP 5.3 Final Stabilization Areas which have- been disturbed are considered to be stabilized when a uniform vegetative cover with a density of 80 percent of the pre -disturbance levels has been established, or when an equivalent permanent, physical erosion reduction method is in place. Disturbed areas will remain in interim reclamation status until final stabilization is achieved. Storm water compliance inspections will be performed at required intervals until final stabilization is reached. Any temporary BMPs will be removed and disposed of. When final stabilization is achieved and all temporary control measures have been removed, Enterprise will apply for an Inactivation Notice to terminate the Piceance Basin Gathering System Project General Permit. 12 Enterprise Products Operating, LLC. SWMP 6.0 MATERIALS HANDLING AND SPILL PREVENTION 6.1 Waste Management and Disposal The construction activities mentioned in this SWMP will generate various other waste materials during the course of construction. These wastes typically include, but are not limited to, the following: • Trees and shrubs from clearing operations • Trash and debris from construction materials and workers • Sanitary sewage from temporary sanitary waste facilities Each of these wastes will be managed so as to not contribute to storm water pollution. Trees and shrubs will be piled along the up gradient side of ROW and at the base of fill slopes for the compressor station to provide additional sediment control. Construction trash and debris will be collected in appropriate containers and hauled off-site for disposal in suitable landfills. Sanitary waste will be contained in portable toilets or other storage tanks with waste materials regularly pumped and transported off-site for proper disposal at approved facilities. Portable toilets will be properly secured to the ground. 6.2 Fuels and Materials Management Petroleum Products Petroleum products which may be present at the construction site include: gasoline, diesel fuel, lubricant oils, hydraulic oils, used oils, and solvents. Gasoline and diesel fuel will be stored in portable storage tanks with secondary containment. Lubricant, hydraulic, and miscellaneous oils and solvents will be stored in containers up to 55 -gallons in volume. All storage containers must be compatible with proposed contents. Storage containers will be labeled with contents. 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 the site. 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. Amendment: Oil changes and lubrication of equipment can be conducted on site, providing the location is relatively level, and equipment is either on a large absorbent pad, or in a collapsible secondary container, to capture any spills or leaks. 13 Enterprise Products Operating, LLC. SWMP The following guidelines for storing petroleum products will be applied: • All product containers will be clearly and properly labeled. • Drums will be kept off the ground within secondary containment and stored under cover when necessary. • Fuel tanks will be stored within areas containing secondary containment. • Lids of drummed materials will be securely fastened. • Emergency spill response procedures will be available on-site. Persons trained in handling spills will be on call at all times. • Spill cleanup and containment materials (absorbent, shovels, etc.) will be readily available. Spills will be immediately cleaned up 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. Construction personnel should be informed about proper storage and handling of materials during weekly subcontractor or safety meetings. Other Chemical Product Management Various additional materials will be used and stored on site for use in construction. These materials will be stored appropriately and managed to minimize spills and leaks. Storage areas will be regularly inspected, and any minor spills or leaks will be cleaned up immediately. Materials Management The construction contractor will maintain a lay -down or staging area for equipment and materials storage on site. These areas will be maintained with good housekeeping and will be inspected on a regular basis for spills, leaks, and potential contamination. 6.3 Construction Site Housekeeping Housekeeping will consist of neat and orderly storage of materials and containerized fluids. Wastes will be temporarily stored in sealed containers and regularly collected and disposed of at appropriate off-site facilities. In the event that a spill occurs, prompt cleanup is required to minimize any commingling of waste materials with storm water runoff. Routine maintenance will be limited to fueling and lubrication of equipment. Drip pans will be used during routine fueling and maintenance to contain spills or leaks. Any waste product from maintenance will be containerized and transported off site for disposal or recycling. There will be no major equipment overhauls conducted on site. Equipment will be transported off site when major overhauls are necessary. Cleanup of trash and discarded materials will be conducted at the end of each work day. Cleanup will consist of patrolling the road way, access areas, and other work areas to pick up trash, scrap debris, other discarded materials, along with any contaminated soil. Upon collection, these waste materials will be disposed of properly. 14 Enterprise Products Operating, LLC. SWMP 7.0 DEDICATED CONCRETE OR ASPHALT BATCH PLANTS Concrete or asphalt batch plants are not applicable to this Project at this time. 15 Enterprise Products Operating, LLC. SWMP 8.0 VEHICLE TRACKING CONTROL No vehicle tracking pads will be required during the Piceance Basin Gathering System construction project. Roads Ieading to and from are graveled for distances greater than 1 mile. 16 Enterprise Products Operating, LLC. SWMP 9.0 INSPECTION AND MAINTENANCE PROCEDURES To meet requirements of the General Permit, inspection and maintenance of erosion and sediment controls must occur during the project. Continued inspection and maintenance is required for specific structures after construction is completed. The inspection program will include the following: 1. A certified person familiar with the SWMP and control measures will conduct the inspections. 2. Inspections will cover the following items within construction site: • Disturbed areas without stabilization • All structural and non-structural BMPs (temporary and permanent) • Material storage areas • Surface water diversions • Down gradient areas • New access roads • Site vehicle entrance/exit locations. 3. Inspections will occur at least once every 14 calendar days (during construction) and after a significant precipitation event, or snow melt event that causes potential for erosion. Once all measures have been taken to reach interim reclamation, inspections shall occur at least once every 30 calendar days. 4. A log of inspections will be maintained. 5. Water quality will be visually assessed for all receiving streams and discharge areas during each inspection. 6. Disturbed areas and material storage areas that are exposed to precipitation will be inspected for evidence of pollutants entering nearby drainages. 7. Roads used for vehicle access will be inspected for evidence of off-site sediment transport. 8. Following each inspection, the SWMP will be modified as necessary to include additional controls designed to correct identified problems. Necessary revisions to the SWMP will be made within 7 days of the inspection. 9. An inspection report summarizing the scope of the inspection, the name of the person conducting the inspection, the date of the inspection, and observations relating to proper implementation will be prepared. Inspection reports will be retained for at least 3 years from the date that the site is finally stabilized. 10, Actions taken to modify any storm water control measure will be recorded and maintained with the SWMP. 11. If no deficiencies are found during the inspection, the report will contain certification that the site is in compliance with the SWMP. Maintenance Procedures Maintenance will include prompt repairs and/or adjustments to any erosion and sediment control structures that are deteriorating or found to be performing inadequately. BMP conditions and dates of BMP maintenance will be documented within the storm water inspection checklists. Repairs are to be made as soon as possible and prior to the next anticipated storm event. 17 Enterprise Products Operating, LLC. SWMP Enterprise Products Operating or a designated contractor(s) will maintain on-site all materials necessary to make any reasonably expected repairs such as silt fence, straw bales, and stakes. Inspection Forms Inspection forms shall be a part of this SWMP and with include information such as dates of maintenance/modifications of existing BMPs, installation of new BMPs, any site housekeeping requirements, and general comments. Refer to Appendix C for an example of the storm water inspection document. 18 Enterprise Products Operating, LLC. SWMP 10.0 NON -STORM WATER DISCHARGES No allowable sources of non -storm water discharges are anticipated from the project. Some possible exceptions include, but are not limited to, fire prevention/suppression or dust control activities. 19 Enterprise Products Operating, LLC. SWMP 11.0 CERTIFICATIONS 11.1 Owner/Applicant 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. Signature: Name: Title: Date: Operator Name and Address: Enterprise Products Operating, LLC 1100 Louisiana Street Houston, Texas 77022 Site Name and Location: Piceance Basin gathering System Project SWMP Prepared by: HRL Compliance Solutions, Inc. 744 Horizon Ct. Suite 140 Grand Junction Colorado, 81506 Phone: 970.243.3271 20 Enterprise Products Operating, LLC. SWMP 11.2 STORM WATER MANAGEMENT PLAN ADMINISTRATOR The SWMP Administrator is responsible for developing, implementing, maintaining, and revising the SWMP. This individual is responsible for the accuracy, completeness, and implementation of the SWMP. SWMP Administrator Certification I certify under penalty of law that I understand the terms and conditions of the SWMP and associated CDPS General Permit that authorizes storm water discharges associated with industrial activity from the construction sites identified as part of this certification. Signature: Name: Title: Date: Representing: Company: Address: Address: Phone: Chris Gauthier SWMP Administrator Enterprise Products Operating, LLC. 1100 Louisiana Street Houston, Texas 77022 303-330-7952 21 Enterprise Products Operating, LLC. SWMP 12.0 ADDITIONAL BMP REFERENCES The structural and non-structural BMPs listed in this SWMP are intended to include all BMPs that may be used for gas gathering projects. However, there may be situations where a BMP is needed but not included in this SWMP, or project personnel may need additional information on the installation, use, specifications, and/or maintenance of BMPs. Additional information regarding various BMPs is available by referencing the following: • For oil and gas operations, the Bureau of Land Management and U.S. Forest Service have developed "Surface Operating Standards and Guidelines for Oil and Gas Exploration and Development," "Gold Book." The most recent version (fourth edition) of this is available on the internet at: htto://www.blmov./bmp/GoldBook Draft v12.pdf. • For Construction BMPs the Urban Drainage and Flood Control District, a Colorado Front Range group of city and county agencies has developed a BMP manual that is available on the internet at: http://swcc.state.al.uslpdf/ASWC June 2003 Alabama Handbook ConstructionE&S C ontrol.pdf. • For construction BMPs and surface stabilization methods, the Alabama Soil and Water Conservation Committee have developed "Erosion Control, Sediment Control and Storm Water Management on Construction Sites and Urban Areas, Volume I Developing Plans and Designing Best Management Practices." This information is available on the internet at: httn://www.blm.govlbmp/field%20guide.htm • For access roads, the US Forest Service and Bureau of Land Management have developed "Low -Volume Roads Engineering, Best Management Practices Field Guide," which is available online at: http://www.blm.gov/bmp/field%20guide.htm 22 Enterprise Products Operating, LLC. SWMP 13.0 SNOW REMOVAL Initial removal of vegetation with snow on the ground can be conducted as indicated in the Storm Water Management Plan (SWMP). In the case of a storm event resulting in accumulation of 6 inches of snow or greater, temporary BMPs will need to be put in place on the down gradient side of disturbance to eliminate sediment transport. Temporary BMPs can consist of straw bale barriers, silt fence, or wattles depending upon the terrain of the immediate area. See Appendix D, in the SWMP for installation details. Snow removal after initial grubbing or in areas of an existing ROW can be implemented as described below. Snow Blower Use of a snow blower will allow for snow to be blown off the ROW and down gradient, provided no soil or sediment is included with the snow being removed. Allowing 4 to 6 inches of clearance should provide a reasonable height to avoid rocks and debris on ground. An Auger snow blower can be attached to a skid steer allowing for maneuverability on the various terrains and contours encountered during snow removal operation from ROW. Detailed specifications can be in table 1 snow blower specifications. Location of existing BMPs can be found below. Brochure of a snow blower attachment for a skid steer can be found Appendix D BMP Details. Snow Plowed and/or Hauled Use of a plow or blade on the ROW to remove snow will require a designated area for snow storage. These areas can be determined, as pipeline construction progresses. The determined area should be flat as possible, with a straw bale barrier placed around the snow stockpile. Once melting begins to occur, the stockpile should be turned once a week to expose snow, allowing it to melt. If the stockpile is not turned, soil on top will create a cap and insulate snow beneath, prohibiting snow melt. Clean snow can be placed off of ROW within BLM surface ownership, as long as trees are not damaged and there is no sediment in snow being moved off ROW. Vehicle Tracking Pad (VTP) should be implemented where trucks hauling snow enter a paved road directly off of the ROW. Details for installation of a VTP can be found in Appendix D, BMP Installation Details. Note: When on Chevron Property, EVERYTHING must stay on the ROW. Snow, topsoil and spoils must stay within the boundaries of the 100 foot ROW. 23 Enterprise Products Operating, LLC. SWMP 13.1 BMP Locations for Snow Removal Listed below is the location of expected BMPs throughout the construction phase of the project. Should snow removal be necessary, these BMPs will be marked prior to removal to avoid damage. 16 inch iveline BMP Location Existing/Proposed Culvert Inlet W108.203/N39.627 Existing Rock Check Dam (2) W 108.199/N39.590 Existing 20 inch t iueline BMP Location Existing/Proposed Culvert Inlet W 108.180/N39.568 Existing Spillway W 108.172/N39.564 Existing Rundown W108.171/N39.564 Existing Culvert Inlet W108.177/N39.547 Existing Rock Check Dam W108.179/N39.538 Existing 24 Enterprise Products Operating, LLC. SWMP Table 1. Snow Blower Specifications- *For LAF6748A, the lift capacity is <5,000 lbs, with an operating weight of <11,000 lbs. For all remaining models, the lift capacity is <7,200 lbs, with an operating weight of <11,000 lbs. L.AF: #' 6748A* 6760D 6760E 6773D Weight; (Approx) Cutting Width Cutting Height Depth; Height 650'Ibs . 685 lbs 6785D 6785E 6774F 6774G 6774H 67861= 6786G 6786H 6798G 720 lbs'. 720 lbs 1,150 lbs 1;160 Ibs: =1,160 lbs 1,230 Ibs 1,240 Ibs, 1 240.-1bs 1,320 lbs: 6798H 320 lbs Auger - Motors single single ' -single single single single Auger. Diameter GPM Range 8-13 14-21 1827: 14-2f 18-27 14-21. Fan PSI Diameter Range 1800- .2500. 43 43" single single 18-27 22-34. 43" =1 22.-34 43 74 - dual dila! 1.9-34' 30-42''. 19-34 2000- 3000:.... 2000- 3000 2000- 3000 2000- 3000 2000- 3000.. 2500, ::3000 3000 2500- 3000 _2500- 3000 2500 3000 2500- 3000 2500- 3000. 2500- 3000 Hose ID'. 1/2, 1/2" 5/8" 1/2 5/8.: 1/2 3%4 314 34" 3/4" 3/4"` http:l/www.ffcattachments.com/products_details asp?Product_Id=260#files 25 APPENDIX A SITE MAPS Straw B Bonier ldvelI d Wel W Ns Straw' ale Barrier Ru own Water Bar Proposed EPCO Marathon Pipeline Gathering System EPCO, INC. I Figure 2 Storm Water BMP Site Specific Map I W • Concrete Washout _ 01 L — Seeam S - 20 Inch SuCrpe - 16 inch alacharge maJackrabbit Cumpresa• Statim Northern 16 Inch BMP O Cheri Oarn Rack • Check Oam Seawbale • CVS@n 10161 • Culvert Outlet 0 Water Bar — Scream Seruetual BMP Rundown Seaw Bate Barrier Water Bar --- Weill.e Structural BMP — Geol.0016 MartWM Badmen', Basin I N: 'COMPLIANCE c.#, f 170N5, .INC. `.LrnrA'on:MirdC6W1n y ,en ars a ,SO 2560 ran 0 rsu `Bre Rundb nn Straw Bale Barrier Check Dam Reck 3—kun wn Wa Bar Wa Bar Water B Sedan Grimmir Muffing haw Bele Sealer sed+ Basin Sethi Basin We. Bar straw B . e Barrier Run wn Strew Bal: 8anler Gaole.IIl Mailing /ler B•r"W lerate Bar Water Bar Strew 8arr Geeleall Matting Wafer Be W. le Wa Bar 0 nlerprise 4 'Sir ... -....• -.; ,----,. •••,- ,,,..., 1-41,PCO, INC. Figure 2 Storm Water BMP Site Specific Map • Concrete Washout 0 Sediment Basin Geotex Matting inJackrabbit Compressor Station - Stream 16 inch discharge - 20 inch suction Roads 120 Armoring Straw Bale Barrier 0 Molars 0 120 400 200 Feat 400 --1-.1Mir • Proposed EPCO Jackrabbit compressorStation 'fa • _ •- *1'4 ( • • o . • • "t• Piceance Basin Gathering System Jackrabbit Extension and Laterals 05 04 1 02 wenfr--�-_. 52.2!„10.,L 15)' 5 96W 20 21 22 20 27 05 / 00 12 07 Gwen. 15 6S 96W l/ 17 29 33 04 08 EPCO, INC. Figure 2 Site Overview Legend Jackrabbit Compressor Station - 20 InrS Suction .r.a.rxr 161000 Discharge Cascade - - --- CDP 20 -Inch Extension '---x^ Garden Gulch Haystack - Stream Road S D 0 500 3.000 6000 F. 6 0.173 Pic r3 ]701(£; INC. .A ny 15 6S 96W l/ 17 29 33 04 08 Piceance Basin Gathering System Jackrabbit Extension and Laterals 03 02 27, 34 o`d 11 10 32 35 07 55 55 04 00 7S 97W 10 03 .s'1 ! c EPCQ, INC. Figure 2 Site Overview Legend I_ :9 3aarahh1 Compressor &MICA - 20 Inch Suc0on - 16 Inch Discharge Cascade 55o... COP 20 -Inch Extension 'i Garden Gulch o•—ott Hayslacc — Stream Road 73y, AN E w S! 56 5 +.e 1 5aro o 0115 c 7 .5 04 00 7S 97W 10 03 .s'1 ! c e ! f 6 E d . " e 1 , },�1Y !•'e '-•o�E * as ''ril'C{y 1i ,Fri 0, Ey !� t' i •. S moi'ywir �K 5��i it .1"' 1 �Fzik ;'K� �c,; pr FP 1• 11 01'{ f �..f JAa6WDDIT GATHERING SYSTEM 10.pApN CASCADE LATERAL NYIRONMEMTAI. ALIGNMENT STA. M00.0 TO 50.87.9 GARFIELD COUNTY, COLORADO i 1 qq A4AyE 1d [t9Em 1 1� 6 • Siam nmmrxrE �rc,enra.,el JAI 0 I� ." r Ji4 r • it roe• i� AI ��I" rlX l /F r r' }at/ F� fi• ` Its i. {• �1}}1 �E1 Y g�yJ I�(�/ . •: r07 "r�1 f�{ r '+ !�+ •� 3rl4 l7� iFP del r f I! }tj .Ttr�a ° �rir� r� `,, 4 t r'� F ,R1 r al :{ .�, 1 i '�:'.'" x r�•,; M: "„. 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R: >i- ) i z fry • S — 1 i-1 Wim. 3q p h N 1`$� nlii iii FIEF 1 Ell o� Q illi A fI J 1p� Y ,r, fy rb 1 h:) �41 !. y fCa rICfS`r v,s ytyit �fb1 d fin{ ''ALL ,I rr�k -riyi 11111-d 1 pig �� k J�4E�j i k , M1 •I i tr a t{.4tl�tI, i f tMt �0 r 17 ‘,14 1e1=rur:"w%mm1 E . 21 Acre Pipe Yard BMP Placement Revision Date: 5/26/2009 BMP Locations • Check Dam Strawbale 0 Tracking Pad – Wattles Ephemeral Drainages Proposed Access Road Specialty Restaurants 7-5 Access Road — Highway 6&24 MI Area of Disturbance 0 230 460 920 Feet Hy CO4LfPLZANCE;i 1 12VN5,17V'C. Fnviranrnentc/Cansu/tino • EPCO, Duct. EPCO 7 Acre Laydown Yard Point BMP Point BMP Check Dam Rock Spillway Lino BMP Beam Sediment ouch Straw Bale Barrier Wattles Diversion Ditch Structures M Gale Lavatory Tracking Pad 71 Fuel Storage Area Disturbed Area --- Highways County Roads Railroads 0 45 90 180 Feet N w 5 Revised 6/26/O9 EPCO, INC. Legend Site Boundary Manager trailer Road Meeker Pipe Yard Site Map Revised: 5/26/2009 480Feet D 120 240 _ •-; 144:6 • '<'744t1" -,54S • . - 7A:76, - ' :•‘• EPC.O, INC. Highway 64 Yard Proposed BMP Placement Revision Date: 5/27/2009 Legend Fence Disturbed Area Earth Berm Gravel Surface Sediment Ditch Pipe Storage Silt Fence Sediment Basin 0 200 400 800 Feet CORIZ14NCE TICA45., 1.Chenl_Spec.1,62008tEPC00+1amthon_ProiechEPCO_Marthon_PLI,64_YanPArcktapil_A_3030_EPC0_64_Yard_BMP_052709 HCS( Harris 5/2712009 18:45 APPENDIX B STORM WATER APPLICATION FORM AND PERMIT STATE OF COLORADO Bili Fritter, 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 October 24, 2008 Laboratory Services Division 8100 Lowry Bivd. Denver, Colorado 80230-6928 (303) 692-3090 Leonard W. Mallet, Sr VP Engr Enterprise Products Operating LLC, PO Box 4324 Houston, TX 77210 713/880-6595 RE: Final Permit, Colorado Discharge Permit System — Stormwater Certification No: COR -03D733 Piceance Basin Gathering System Garfield County Local Contact: Chris Cauthier, Field Env Engr 303/330-7951 Dear Sir or Madam: Colorado Department of Public Health and Environment Enclosed please find a copy of the permit and certification which have been issued to you under the Colorado Water Quality Control Act. 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.cdohe.state.co.us/wq/permitsunitlstormwater or contact Matt Czahor at (303) 692-3517. Sincerely, 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 COR03D733 This Certification to Discharge specifically authorizes: Enterprise Products Operating LLC LEGAL CONTACT: LOCAL CONTACT: Leonard W. Mallet, Sr VP Engr Chris Gauthier, Field Env Engr, Enterprise Products Operating LLC Phone # 303/330-7951 PO Box 4324 cagazithier@eprod.com Houston, TX 77210 Phone # 713/880-6595 lwmallet@eprod.com During the Construction Activity: Oil & Gas Production and/or Exploration - Pipeline ROW to discharge storrwater from the facility identified as Piceance Basin Gathering System which is located at: CR 215 & Parachute Creek Area , Co Latitude 39/31/10, Longitude 108/09/21 In Garfield County to: Parachute Creek -- Colorado River Anticipated Activity begins 05/18/2008 continuing through 12/31/2011 On 375 acres (375 acres disturbed) Certification is effective: 05/13/2008 Certification Expires: 06/30/2012 Annual Fee: $245.00 (DO NOT PAY NOW -- A prorated bill will be sent shortly.) Page 1 of 22 APPENDIX C STORM WATER INSPECTION FORM Storm Water Inspection Checklist Project Name Project ID Unique ID Field Name Site Type Permit Name Permit Date Proposed Start Date Latitude Longitude Township Range Section Description Inspection Date Inspector Inspection Type Signature Comment 1 Sediment Basin Storm Start Date Storm End Date Winter Exclusion Acres Disturbed Acres Subject to Interim Reclamation Acres Restored Distance to Receiving Water Name of Receiving Water(s) Type Estimated Runoff Coefficient Comment 1 Sediment Basin Best Management Practices B M P Type Maintenanc e Required Date Maintenance Completed Comment 1 Sediment Basin 2 Rock Check Dam 3 Diversion Ditch 4 5 6 7 8 9 10 11 12 # of Separators Freeboard in Secondary Containment Storm Water in Secondary Containment Comment 13 N/A N/A N/A None 14 15 16 17 18 19 20 21 22 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Processing Equipment # of Tanks # of Separators Freeboard in Secondary Containment Storm Water in Secondary Containment Comment N/A N/A N/A N/A None Secondary Wells On Site None None None None None None None None None None Other Eauibment Type of Equipment Comment None None None None None None Housekeeping/Site Trash Materials Handling Spills or Leaks Vegetation Seed Mix Date Planted 70% Revegetated Comment TBD TBD TBD TBD Files Type of File Location Site Complies With Storm Water Standards (Yes or No) Comments: APPENDIX D BMP DESCRIPTIONS AND INSTALLATION DETAILS Straw Bale Barrier Description and Purpose A straw bale barrier is a series of straw bales placed on a level contour to intercept sheet flows. Straw bale barriers pond sheet- flow runoff, allowing sediment to settle out. Implementation A straw bale barrier consists of a row of straw bales placed on a level contour. When appropriately placed, a straw bale barrier intercepts and slows sheet flow runoff, causing temporary ponding. The temporary ponding provides quiescent conditions allowing sediment to settle. Straw bale barriers also interrupt the slope length and thereby reduce erosion by reducing the tendency of sheet flows to concentrate into rivulets, which erode rills, and ultimately gullies, into disturbed, sloped soils. Straw bale barriers have not been as effective as expected due to improper use and installation. These barriers have been placed in streams and drainage ways where runoff volumes and velocities have caused the barriers to wash out. In addition, failure to stake and entrench the straw bale has allowed undercutting and end flow. Use of straw bale barriers in accordance with this BMP should produce acceptable results. Bales should be placed in a single row on a level contour with ends tightly abutting one another. All bales should be installed on their sides so that twine or binding runs around side of bale rather than on the top and bottom. Bales should be trenched in and staked. See illustration below. In deep snow or tight corridors, bales can be double stacked to contain snow and sediment. Should conditions exist that require bales to be stacked two high, bales should be offset from the bottom row so that the end of the top bale is over lapping two bottom bales. Winter Installation: Frozen ground conditions can be an obstacle when attempting to trench bales in. When installing in frozen ground conditions, place bale directly on ground. The straw bale must have full contact with the soil. Back fill with soil on the flow side to ensure that storm water will not run under bales. Wooden stakes are not easily installed when ground is frozen, in the case of frozen ground rebar can be used to stake bales in place. When using rebar, the tops must be capped for safety purposes. a. clay hales (or bundles of grass) Tamped affil / (LINE err g1 4411111111 IIIIY1�1NVa1 Lcati a no saps between bales Staked end entrenched straw halt. (use two stakes per hale,) e • . n . -o i• a ij9..o'rO07.e a Bales key Note: Problems can developfrom water limning between and under 11) (buried ) I' lncmdel had bales. install titent carefully. Long-tenn structures must he periodi- into soil. (Idly cleantd and maintained. Materials • Straw Bale Size: Each straw bale should be a minimum of 14 in. wide, 18 in. in height, 36 in. in length and should have a minimum mass of 50 lbs. The straw bale should be composed entirely of vegetative matter, except for the binding material. • Bale Bindings: Bales should be bound by steel wire, nylon or polypropylene string placed horizontally. Jute and cotton binding should not be used. Baling wire should be a minimum diameter of 14 -gauge. Nylon or polypropylene string should be approximately 12 -gauge in diameter with a breaking strength of 80 lbs force. • Stakes: Wood stakes should be commercial quality lumber of the size and shape shown on the plans. Each stake should be free from decay, splits or cracks longer than the thickness of the stake, or other defects that would weaken the stakes and cause the stakes to be structurally unsuitable. Steel bar reinforcement should be equal to a #4 designation or greater. End protection should be provided for any exposed bar reinforcement. Check Dams Description and Purpose A check dam is a small barrier constructed of rock, gravel bags, sandbags, straw bales, fiber rolls, or reusable products, placed across a constructed swale or drainage ditch. Check dams reduce the effective slope of the channel, thereby reducing the velocity of flowing water, allowing sediment to settle and reducing erosion. Implementation General Check dams reduce the effective slope and create small pools in swales and ditches that drain 10 acres or less. Reduced slopes reduce the velocity of storm water flows, thus reducing erosion of the swale or ditch and promoting sedimentation. The use of check dams for sedimentation will likely result in little net removal of sediment because of the small detention time and probable scour during longer storms. Using a series of check dams will generally increase their effectiveness. A sediment trap may be placed immediately upstream of the check dam to increase sediment removal efficiency. Design and Layout Check dams work by decreasing the effective slope in ditches and swales. An important consequence of the reduced slope is a reduction in capacity of the ditch or swale. This reduction in capacity must be considered when using this BMP, as reduced capacity can result in overtopping of the ditch or swale and resultant consequences. In some cases, such as a "permanent" ditch or swale being constructed early and used as a "temporary" conveyance for construction flows, the ditch or swale may have sufficient capacity such that the temporary reduction in capacity due to check dams is acceptable. When check dams reduce capacities beyond acceptable limits, there are several options: • Don't use check dams. Consider alternative BMPs. • Increase the size of the ditch or swale to restore capacity. Maximum slope and velocity reduction is achieved when the toe of the upstream dam is at the same elevation as the top of the downstream dam. The center section of the dam should be lower than the edge sections so that the check dam will direct flows to the center of the ditch or swale. Check dams are usually constructed of rock, gravel bags, sandbags, and fiber rolls. A number of products manufactured specifically for use as check dams are also being used, and some of these products can be removed and reused. Check dams can also be constructed of logs or lumber, and have the advantage of a longer lifespan when compared to gravel bags, sandbags, and fiber rolls. Straw bales can also be used for check dams and can work if correctly installed; but in practice, straw bale check dams have a high failure rate. Check dams should not be constructed from straw bales or silt fences, since concentrated flows quickly wash out these materials. Rock check dams are usually constructed of 8 to 12 in. rock. The rock is placed either by hand or mechanically, but never just dumped into the channel. The dam must completely span the ditch or swale to prevent washout. The rock used must be large enough to stay in place given the expected design flow through the channel. Log check dams are usually constructed of 4 to 6 in. diameter logs. The logs should be embedded into the soil at least 18 in. Logs can be bolted or wired to vertical support logs that have been driven or buried into the soil. Gravel bag and sandbag check dams are constructed by stacking bags across the ditch or swale, shaped as shown in the drawings at the end of this fact sheet. Manufactured products should be installed in accordance with the manufacturer's instructions. If grass is planted to stabilize the ditch or swale, the check dam should be removed when the grass has matured (unless the slope of the swales is greater than 4%). The following guidance should be followed for the design and layout of check dams: • Install the first check dam approximately 16 ft from the outfall device and at regular intervals based on slope gradient and soil type. • Check dams should be placed at a distance and height to allow small pools to form between each check dam. • Backwater from a downstream check dam should reach the toes of the upstream check dam. • A sediment trap provided immediately upstream of the check dam will help capture sediment. Due to the potential for this sediment to be re -suspended in subsequent storms, the sediment trap must be cleaned following each storm event. • High flows (typically a 2 -year storm or larger) should safely flow over the check dam without an increase in upstream flooding or damage to the check dam. • Where grass is used to line ditches, check dams should be removed when grass has matured sufficiently to protect the ditch or swale. • Gravel bags may be used as check dams with the following specifications: Materials Gravel bags used for check dams should conform to the requirements of gravel bag berms. Sandbags used for check dams should conform to sandbag barrier guidelines. Fiber rolls used for check dams should conform to fiber roll requirements. Straw bales used for check dams should conform to straw bale barrier requirements. Concrete Washout Description and Purpose Concrete washout stations provide a secure location in which concrete waste materials can be disposed of and managed, according to proper procedures and practices that are designed to minimize or eliminate the discharge potential into drainage systems or watercourses. Cement production requires a source of calcium (usually Iimestone) and a source of silicon (such as clay or sand). Small amounts of bauxite and iron ore are added to provide specific properties. Concrete is produced by mixing cement with fine aggregate (sand), coarse aggregate (gravel or crushed stone), water, and--often--small amounts of various chemicals called admixtures that control such properties as setting time and plasticity. Working with wet concrete requires a number of precautions, primarily to protect your skin from the high alkalinity. Rubber gloves and boots are typically all that is required to provide protection. Cement dermatitis, though relatively uncommon, occasionally occurs among workers in the concrete industry who fail to wear the proper protective clothing. The concern is the greatest at the concrete production phase. Washout water has the potential and general does have a high pH. The alkalinity levels of wash water can be as high as pH 12. Highly alkaline water and several chemicals in admixtures are toxic to fish and other aquatic life and as such are a significant environmental concern. By utilizing a concrete washout, this risk is alleviated and productivity is not compromised. Implementation General Concrete waste management procedures and practices are implemented on construction projects where concrete is used as a construction material or where concrete dust and debris result from demolition activities. Additionally, a site may be described as and be located: • Where slurries containing Portland cement concrete (PCC) or asphalt concrete (AC) are generated, such as from saw cutting, coring, grinding, grooving, and hydro -concrete demolition. • Where concrete trucks and other concrete -coated equipment are washed on site, when approved by the Resident Engineer (RE). • Where mortar -mixing stations exist. Design and Layout Onsite Ternporary Concrete Washout Facility, Concrete Transit Truck Washout Procedures • Temporary concrete washout facilities shall be located a minimum of 15 m (50 ft) from open drainage facilities and watercourses. Each facility shall be located away from construction traffic or access areas to prevent disturbance or tracking. • A sign shall be installed adjacent to each washout facility to inform concrete equipment operators to utilize the proper facilities. The sign shall be installed as detailed at the end of this section. • Temporary concrete washout facilities shall be constructed above grade or below grade at the option of the Contractor. Temporary concrete washout facilities shall be constructed and maintained in sufficient quantity and size to contain all liquid and concrete waste generated by washout operations. Temporary concrete washout facilities shall be constructed as detailed at the end of this section and with a recommended minimum length and minimum width of 3 m (10 ft), but with sufficient quantity and volume to contain all liquid and concrete waste generated by washout operations. • Temporary washout facilities shall have a temporary pit or bermed areas of sufficient volume to completely contain all liquid and waste concrete materials generated during washout procedures. • Perform washout of concrete mixers, delivery trucks, and other delivery systems in designated areas only. • Wash concrete only from mixer chutes into approved concrete washout facility. Washout may be collected in an impermeable bag or other impermeable containment devices for disposal. Free liquid may be left to evaporate; however, solid concrete waste must be properly disposed of as well. • Pump excess concrete in concrete pump bin back into concrete mixer truck. • Concrete washout from concrete pumper bins can be washed into concrete pumper trucks and discharged into designated washout area or properly disposed offsite. • Once concrete wastes are washed into the designated area and allowed to harden, the concrete shall be broken up, removed, and properly disposed of. Temporary Concrete Washout Facility Type "Above Grade" • Temporary concrete washout facility Type "Above Grade" shall be constructed as detailed at the end of this section, with a recommended minimum length and minimum width of 3 m (10 ft), but with sufficient quantity and volume to contain all liquid and concrete waste generated by washout operations. The length and width of a facility may be increased; if it is determined that initial capacity requirements were under estimated. • Straw bales, wood stakes, and sandbag materials shall conform to the provisions otherwise specified within Appendix B. • Plastic lining material shall be a minimum of 60 -mil sheeting (polyethylene) and shall be free of holes, tears or other defects that compromise the impermeability of the material. Liner seams shall be installed in accordance with manufacturers' recommendations. Temporary Concrete Washout Facility (Type Below Grade) • Temporary concrete washout facility Type "Below Grade" shall be constructed as detailed at the end of this section, with a recommended minimum length and minimum width of 3 m (10 ft), but with sufficient quantity and volume to contain all liquid and concrete waste generated by washout operations. The length and width of a facility may be increased; if it is determined that initial capacity requirements were under estimated. • Plastic lining material shall be a minimum of 60 -mil sheeting (polyethylene) and shall be free of holes, tears or other defects that compromise the impermeability of the material. Liner seams shall be installed in accordance with manufacturers' recommendations. • The soil base shall be prepared free of rocks or other debris that may cause tears or holes in the plastic lining material. Removal of Temporary Concrete Washout Facilities • When temporary concrete washout facilities are no longer required for the work, , the hardened concrete shall be removed and disposed of. Materials used to construct temporary concrete washout facilities shall be removed from the work site and be properly disposed of. Any holes, depressions or other ground disturbance caused by the removal of the temporary concrete washout facilities shall be backfilled and repaired. Inspection and Maintenance Inspection of the washout facilities should be performed in conjunction with regularly scheduled storm water inspections prior to forecasted precipitation, daily during extended precipitation events (when the facility is active), after precipitation events, weekly during the rainy season, and at two-week intervals during the non -rainy season.. • Temporary concrete washout facilities shall be maintained to provide adequate holding capacity with a minimum freeboard of 100 mm (4 inches) for above grade facilities and 300 mm (12 inches) for below grade facilities or once washout has reached 75% of its capacity. • Maintaining temporary concrete washout facilities shall include removing and disposing of hardened concrete and returning the facilities to a functional condition. Hardened concrete materials shall be removed and disposed of properly. • Facilities shall be inspected for damage (i.e. tears in liner, missing bales, etc.). if damaged facilities shall be repaired as practicable. SAHCOAG 130 nil 'lAsllc LUANO 1m \. LATH AND FAGGING ON - 3 SIDES l + :m VIN 14114 VAR ES SC�6 \— BERM EFC1 4 A—A' AOT TO SCAL[ 14007 FRAME SECURELY E/STENEO AROUND EN -RE PERIMETER RIIH Iwo SIARLS 0 sDHAc — � 0 C 0 u r aax Tib mT PLASNC LINING NOT TO SCALE I— BERN TYPE 'BELOW GRADE` STRAW BALE STAPLES BONG WIRE I (2 PER BALE) RU mR PLASTIC LINING 14000 OR MEIN. NA1WO MATERIAL STAI(Es 12 PER DAL[) TYPE 'ABOVE GRADE' WITH STRAW BALES NOT TO SCALE 00 n k PLASTC JHING BAN NOT TO SCALE TYPE `ABOVE GRADE' WITH WOOD PLANKS PLYW000 12110 mm >s 610 mm PAINTED MMITE CONCRETE:: BUCK LkHun 11 WASHOUT It u- 150 mm HEIGHT LAO SCREWS St5 mm 1 1 (12,6 mm) WOOD POST 415 mm' (89 wow 89 mm w2.4 m) 1 CONCRETE WASHOUT SIGN DETAIL (OR EQUIVALENT) 50 mm 200 mm ].OS mm DIA slEEl WIRE STAPLE DETAIL Fiber Rolls Description and Purpose A fiber roll consists of straw, flax, or other similar materials bound into a tight tubular roll. When fiber rolls are placed at the toe and on the face of slopes, they intercept runoff, reduce its flow velocity, release the runoff as sheet flow, and provide removal of sediment from the runoff. By interrupting the length of a slope, fiber rolls can also reduce erosion. Implementation Fiber Roll Materials • Fiber rolls should be either prefabricated rolls or rolled tubes of erosion control blanket. Assembly of Field Rolled Fiber Roll • Roll length of erosion control blanket into a tube of minimum 8 in. diameter. • Bind roll at each end and every 4 ft along length of roll with jute -type twine. Installation • Locate fiber rolls on level contours spaced as follows: o Slope inclination of 4:1 (H:V) or flatter: Fiber rolls should be placed at a maximum interval of 20 ft. o Slope inclination between 4:1 and 2:1 (H:V): Fiber Rolls should be placed at a maximum interval of 15 ft. (a closer spacing is more effective). o Slope inclination 2:1 (H:V) or greater: Fiber Rolls should be placed at a maximum interval of 10 ft. (a closer spacing is more effective). • Turn the ends of the fiber roll up slope to prevent runoff from going around the roll. • Stake fiber rolls into a 2 to 4 in. deep trench with a width equal to the diameter of the fiber roll. o Drive stakes at the end of each fiber roll and spaced 4 ft maximum on center. o Use wood stakes with a nominal classification of 0.75 by 0.75 in. and minimum length of 24 in. • If more than one fiber roll is placed in a row, the rolls should be overlapped, not abutted. Culvert Inlet/Outlet Protection a. Normal metal culvert installation using riprap around the inlet and outlet of culverts. Also use geotexxtile (filter fabric) or gravel filter beneath the riprap for most installations. (Adapted front N•isconstlt's Forestry Best Management Practice for Yater Quality, 1995) Description and Purpose Culvert inlet/outlet protection typically consists of gravel riprap that act as energy dissipation features, thus allowing for the settling of sediments, while preventing piping form occurring at the inlet or outlet. Riprap should consist of small to medium gravels that layered to achieve uniform density. Inspection and Maintenance • Inspect BMPs prior to forecast rain, daily during extended rain events, after rain events, weekly during the rainy season, and at two-week intervals during the non -rainy season. • Repair or fill any unnecessary gaps or holes in the inlet/outlet of culverts 1' .p•cNy of Erosion Control Blankets buy upper``Mem arttng • '.._ &' minimum MOO cR mulched ANSI extend mitthig ovor Aim snel too of itiloluoi ares r11 5' inkhorn (*wimp 4R rnlnnrum overlie 5' *wane of otoploo einah onell rO iry eA gCnlrnuln Description and Purpose Made out of environmentally friendly, biodegradable material, erosion control blankets are installed on disturbed slopes that are requiring stability. They stabilize slopes, and provide for an increased water holding capacity, which ultimately increased the rate and establishment of desired vegetative cover. Implementation Erosion control blankets should installed smoothly on the surface of the soil, loose enough to allow for vegetation establishment. The blankets are to be in complete contact with the soil to prevent any tenting. The upslope end of the blanket should be buried in a trench with ideal dimensions of 6"x6". Where one blanket ends and another begins, there should be 4-6 inches of overlap. Inspection and Maintenance • Inspect blankets prior to forecast rain, daily during extended rain events, after rain events, weekly during the rainy season, and at two-week intervals during the non -rainy season. • Repair any unnecessary gaps or holes in the blankets. • Inspect to make sure that there is uniform contact with the soil. Seeding/Hydraulic Erosion control Description and Purpose Areas of disturbance are inevitable and are the premise for storm water management. To ensure the integrity of our water and vegetative communities as well as the security of our appreciable aesthetic surroundings re -vegetating disturbed areas is essential to this desire. Minimizing use areas, stabilizing slopes and restoring the area to pre -disturbance conditions are hinged upon successful completion of the practices described within this section. Due to the slope, topography and other environmental factors in the North Piceance Field, a variety of methods are needed to achieve the temporary and permanent vegetative cover required. These seeding methods are to include: • Hand (where applicable due to terrain and accessible distance); • Broadcast; • Drill/Disc; and • Hydraulic (with or without the addition of a tackifier). Hydraulic erosion control consists of applying a mixture of shredded wood or coconut and wood fiber or a hydraulic matrix and a stabilizing emulsion or tackifier with hydroseeding equipment, which temporarily protects exposed soil from erosion by raindrop impact or wind. Hydraulic erosion control is applied to disturbed areas requiring temporary protection until permanent vegetation is established. Immediately, or nearly immediately in some cases, the hydromulch bonds to the soil, providing slope protection to and essential seed -to -soil contact required for successful and rapid germination leading to desired vegetative establishment and cover. Implementation Seed mix will be as determined by Enterprise Products Operating personnel, the BLM or current landowner. Typical seeding practices will be as follows: • Temporary seed mix should include annual, cereal crop seeds such as oats or barley, or sterile hybrid such as "Re -green" to establish vegetative cover and suitable grass species. Grass seed will be included in the seed mix to provide sustainable vegetative cover in the event that a ROW remains in the construction phase for longer than one year. • The permanent seed mix, rate, application method, and supplemental materials will be determined by Enterprise Product Operating or the BLM/Landowner as appropriate for the land ownership. Generally, seeding will occur by broadcasting (hand and/or mechanical), drilling or hydroseeding (where applicable with inclusion of a tackifier). Design and Layout Application rates and procedures typically used are included as Figure 1 in this section. Additional seeding and mulching details are as follows: General Standards and Specifications • Prior to application, roughen embankment and fill areas by rolling with a crimping or punching type roller or by track walking. Track walking shall only be used where other methods are impractical. • Hydraulic matrices require 24 hours to dry before rainfall occurs to be effective. • Avoid mulch over -spray onto the traveled way and existing vegetation. • Hydraulic mulches and seed mixes used by the Contractor must be approved by appropriate Enterprise Products Operating personnel. • Types of mulch and typical application rate and procedures: Hydraulic Mulch Wood fiber mulch is a component of hydraulic applications. It is typically applied at the rate of 2,250 to 4,500 kilograms per hectare (kg/ha) (2,000 to 4,000 lb/ac) with 0-5% by weight of a stabilizing emulsion or tackifier (e.g., guar, psyllium, acrylic copolymer) and applied as a slurry. This type of mulch is manufactured from wood or wood waste from lumber mills or from urban sources. Hydraulic Matrix Hydraulic matrix is a combination of wood fiber mulch and tackifier applied as slurry. It is typically applied at the rate of 2,250 to 4,500 kg/ha with 5-10% by weight of a stabilizing emulsion or tackifier (e.g., guar, psyllium, acrylic copolymer). Bonded Fiber Matrix Bonded fiber matrix (BFM) is a hydraulically -applied system of fibers and adhesives that upon drying forms an erosion -resistant blanket that promotes vegetation, and prevents soil erosion. BFMs are typically applied at rates from 3,400 kg/ha to 4,500 kg/ha based on the manufacturer's recommendation. The biodegradable BFM is composed of materials that are 100% biodegradable. The binder in the BFM should also be biodegradable and should not dissolve or disperse upon re -wetting. Typically, biodegradable BFMs should not be applied immediately before, during or immediately after rainfall if the soil is saturated. Depending on the product, BFMs require 12 to 24 hours to dry to become effective. Flexible Growth Medium Flexible Growth MediumTM (FGM) is a hydraulically applied substrate that is composed of long strand, Thermally Refined® wood fibers, crimped, interlocking man-made fibers and performance -enhancing additives. The FGM requires no curing period and upon application forms an intimate bond with the soil surface to create a continuous, porous, absorbent and flexible erosion resistant blanket. Slope interruption devices or water diversion techniques are recommended when slope lengths exceed 100 ft (30 m). FGMs are typically applied at a rate ranging from 3,400 kg/ha to 5,100 kg/ha (generally 3900 kg/ha), based on the manufacturer's recommendation. The biodegradable FGM is composed of materials that are 100% biodegradable. Inspection and Maintenance • Inspect hydromulched areas prior to forecast rain, after rain events and at two-week intervals during the non -rainy season. • Maintain an unbroken, temporary mulched ground cover throughout the period of construction when the soils are not being reworked. As previously noted, inspect before expected rain storms and repair any damaged ground cover and re -mulch exposed areas of bare soil. Sediment Basin Description and Purpose A sediment basin provides adequate settling time, retention capacity and reduction of flow velocities minimizing erosion and allowing for settling of suspended sediment. A basin may be constructed by the construction of a barrier or dam across a natural drainage path, by excavating a basin or by a combination of both. Basins usually consist of a dam, blanketed or hydroseeded downgradient slopes/berms and a stabilized outlet (spillway). Implementation A sediment basin is a temporary containment area that allows sediment in collected storm water to settle out during infiltration or before the runoff is discharged through a stabilized spillway. Sediment basins are formed by excavating or constructing an earthen embankment across a waterway or low drainage area. Basins should be placed at the end of perimeter sediment ditches, diversion ditches, along bar ditches upgradient areas from which sediment -laden storm water directly enters a drainage or watercourse. The size of the structure will depend upon the location, size of drainage area, soil type, rainfall pattern and desired outflow releases. Design and Layout • Sediment basins should be constructed prior to the rainy season and commencement of construction activities in the area. • Sediment basins are not to be constructed in any live stream. • Sediment basin(s), as measured from the bottom of the basin to the principal outlet, should have at least a capacity equivalent to 100 cubic meters (3,532 cubic feet) of storage per hectare (2.47 acres) draining into the sediment basin. The length of the basin should be more than twice the width of the basin. The length is determined by measuring the distance between the inlet and the outlet. The depth must not be less than 0.9 m (3 ft) nor greater than 1.5 m (5 ft) for safety reasons and for maximum efficiency. • Multiple traps and/or additional volume may be required to accommodate site specific rainfall and soil conditions. • Basins with an impounding levee greater than 1.5 m (5 ft) tall, measured from the lowest point to the impounding area to the highest point of the levee, and basins capable of impounding more than 1000 cubic meters (35,300 cubic feet), shall be individually designed and implemented with direct on-site oversight provided by Enterprise Products Operating or other appropriate and designated personnel. Additional safety requirements such as fencing may also be required. • Rock, blankets, hydromulch and/or vegetation shall be used to protect the basin inlet and slopes against erosion. • Embankments shall be constructed of a material and size (i.e. sorted, with fines) capable of attaining sufficient levels of compaction and conductivity to ensure the structural integrity of the structure and its desired retention capacity and capability. Generally compaction of the structure is by use of heavy machinery • Use rock or vegetation in addition to geotextile to protect the basin outlet(s) against erosion. Inspection and Maintenance • Inspect sediment basins prior to forecast rain, daily during extended rain events, after rain events, weekly during the rainy season, and at two-week intervals during the non -rainy season. • Inspect sediment basin banks for embankment seepage and structural soundness. • Inspect inlet and outlet (rock spillway) areas for erosion, damage or obstructions and stabilize/maintenance as necessary. • Remove accumulated sediment when the volume has reached one-third the original trap volume. • Properly disposed of sediment and debris removed from the trap. Riurau rundown Smoothly V-shaped Rlprap Channel blend contact area .�...... Design top width frr� �' in Design " yob ��• A— �rrl~-mss, 40, IIS IIII .flt l It_'" i w III ' Subgrade excavation Finished channel cross-section Trapezoidal Rlprap Channel -+4- Design top width Fitter fabric or aggregate filter A z1 Design depth ,.�•' T. DIM I. :. i=–IIIIJ Mfr ..w:..ai.+♦.��• *:0IP4" l':0801' sl11�J = 4"rn tIJ l lJl tirli utu�rlil j�Il= i Fabric or filterlayer Figure 6. Typical riprap-lined channel cross-sections. (Source: Ref. 1) Description and Purpose Lined channels are excavated channels or swales lined with grass, riprap, or other protec-tive material. They are intended to carry concentrated runoff to a stable outlet without causing erosion or flooding. In some cases they are designed to allow runoff to infiltrate into the surrounding soil (Figure 6). Desizn and Installation Grass -lined channels may have V-shaped, parabolic, or trapezoidal cross-sections. Sideslopes should not exceed 3:1 to facilitate the establishment, maintenance, and mowing of vegetation. A dense cover of hardy, erosion -resistant grass should be established as soon as possible following grading. This may necessitate the use of straw mulch and the installation of protective netting until the grass becomes established (see BMP 2.2, Mulching and Matting). If the intent is to create opportunities for runoff to infiltrate into the soil, the channel gra-client should be kept near zero, the channel bottom must be well above the seasonal water table, and the underlying soils should be relatively permeable (generally, with an infiltra-tion rate greater than 2 cm per hour). Riprap-lined channels may be installed on somewhat steeper slopes than grass -lined channels. They require a foundation of filter fabric or gravel under the riprap. Generally, side slopes should not exceed 2:1, and riprap thickness should be 1.5 times the maximum stone diameter. Riprap should form a dense, uniform, well -graded mass. Applicability, Limitations, and Common Problems A limitation of lined channels is that they tend to take up substantial land area on a site. Where land is expensive they may not be a cost-effective solution. Grass -lined channels typically are used in residential developments, along highway medians, or as an alternative to curb and gutter systems. Grass -lined channels should be used to convey runoff only where slopes are 5% or less. They require periodic mowing, occasional spot -seeding, and weed control to ensure adequate grass cover. Common problems in grass -lined channels include erosion of the channel before vegetation is fully established and gullying or head cutting in the channel if the grade is too steep. Trees and brush tend to invade grass -lined channels, causing maintenance problems. Riprap lined channels can be designed to safely convey greater runoff volumes on some -what steeper slopes. However, they should generally be avoided on slopes exceeding 10%. Common problems include stone displacement or erosion of the foundation, or channel overflow and erosion because the channel is not large enough. Channels established on slopes greater than 10% will usually require protection with rock gabions, concrete, or other highly stable and protective surface. Riprap rundown information obtained from: http://www.cep.unev.org/pubs/Techreports/tr32en/content.htm1 Vehicle Tracking Pad Sp, 1 M_2 M washed rock ROCK CONSTRUCTION ENTRANCE Description: A rock construction entrance pad may be necessary at construction access locations to reduce the amount of mud transported onto paved roads by vehicles or surface runoff. Rock construction entrance pads provide an area where mud can be removed by vehicle tires traveling over the gravel pad before entering public roads. A construction entrance is a stabilized pad of aggregate over a geotextile base and is used to reduce the amount of mud tracked off-site with construction traffic. A temporary construction entrance is a stone pad located where vehicles leave a construction site. The purpose of the stone pad is to provide an area where mud can be removed from tires before a vehicle leaves the site. The stone pad consists of clean rock designed in such a way that vehicle tires will sink in slightly. This helps remove mud from the tires as the vehicle passes over the pad. If a wash rack is used, it provides an area where vehicle tires can be washed. Effectiveness: The effectiveness of temporary rock construction entrances for trapping sediment depends upon the length, depth of rock, frequency of use and maintenance, as well as the type of structure used. A newly installed rock construction entrance meeting the recommendations included here will be relatively effective for removing mud from tires before construction vehicles leave the site. However, once the rock voids become clogged with mud, the practice will not serve its intended purpose until the rock is replaced. Washing vehicle tires with pressurized water over a wash rack will increase the effectiveness of the tracking pad for removing mud. Advantages: • Cost-effective • Highly effective for erosion and sediment control Limitations: • Muddy sites will require extensive maintenance of the vehicle tracking pad to ensure effective sediment removal. • Gravel can become quickly saturated with mud in certain soils and moisture conditions Design: The aggregate is recommended to be 1 to 3 inch washed rock. The aggregate layer should be 6 inches thick and extend the full width of the ingress and egress areas. The rock pad should be at least 50 feet long. A geotechnical fabric may be used under the aggregate to minimize the migration of stone into the underlying soil by heavy vehicle loads. If the majority of mud is not removed by vehicles traveling over the rock pad, the tires of the vehicle should be washed before entering a paved road. Wash water should be directed to a settling area to remove sediments. A wash rack installed on the rock pad may make washing more convenient and effective in removing sediment. Specifications: • The rock used for gravel pads should be a minimum 1 to 3 inch size, coarse aggregate • Aggregate should be placed in a layer at least 6 inches thick. Generally, the larger the aggregate, the better • Rock entrance should be at least 50 ft. long: however, longer entrances may be required to adequately clean tires. • Geotextile fabric may be needed under the rock to prevent migration of mud from the underlying soil into the stone. • If tires are cleaned with water, the wash water should be directed to a suitable settling area. • A wash rack installed on the rock pad may make washing more convenient and effective. The wash rack would consist of a heavy grating over a lowered area. The grating may be a prefabricated rack, such as a cattle guard, or it may be constructed o site of structural steel. In any case, the wash rack must be strong enough to support the vehicles that will cross it. • Culvert -A pipe or culvert shall be constructed under the entrance if needed to prevent surface water flowing across the entrance from being directed out on to paved surfaces. • Water Bar -a water bar shall be constructed as part of the construction entrance if needed to prevent surface runoff from flowing the length f the construction entrance and out onto paved surfaces Maintenance: • In addition to the vehicle tracking pad, it is recommended that a street sweeper and scraper be kept on site during construction operations and the street areas adjacent to the tracking pad should be cleaned daily at the end of each construction day. • New rock should be added to the tracking pad whenever the existing rock becomes buried. • If conditions on the site are such that the majority of the mud is not removed by the vehicles traveling over the gravel, then the tires of the vehicles should be washed before entering a public road. • Wash water should be carried way from the entrance to a settling area to remove sediment; a wash rack may also be used to make washing more convenient and effective. • The rock entrance pad needs maintenance to prevent racking of mud onto paved roads. This may require periodic top -dressing with additional rock or removal and reinstallation of the pad. Areas used for sediment trapping may also need to be cleaned out. • Top dressing of additional stone shall be applied as conditions demand. Mud spilled, dropped, washed or tracked onto public roads, or any surface where runoff is not checked by sediment controls, shall be removed immediately. • The rock pad needs occasional maintenance to prevent the tracking of mud onto paved roads. This may require periodic topdressing with addition rock or removal and reinstallation of the pad. Sources: 1. Minnesota Pollution Control Agency, 2000, Protecting Water Quality in Urban Areas: Best Management Practices for Dealing with Storm Water Runofffrom Urban, Suburban and developing Areas of Minnesota. Minneapolis. 2. Center for Watershed Protection, 2001. "Stabilized Construction Entrance" fact sheet in Stormwater Manager's Resource Center, www.stoimwatercenter.net Ellicott City, MD. 3. Mecklenburg, D. 1996. Rainwater and Land Development. Division of Soil and Water Conservation, Ohio Department of Natural Resources. Columbus. 4. Soil Conservation Service. 1987. "Temporary Rock Construction Entrance" fact sheet. United States Department of Agriculture, Washington, D.C. 5. Minnesota Department of Transportation. 2000. Standard Specifications for Construction. St. Paul. FLUMED CROSSING / DRY CROSSING CONSTRUCTION R.O.W. SILT FENCE AND/OR HAY BALES APPROPRIATE As., S .PROPOSER TRENCH PIPELINE I /� SPOIL PILE -\ TEMPORARY TRENCH PLUG FLUME PIPE(S) EXISTING VEGETATION MAINTAINED TO MAX. POSSIBLE WIDTH STREAM FLIM EQUIPMENT CROSSING 1 SILT FENCE AND/OR RY BALES APPROPRIATE SPOIL PILE TEMPORARY TRENCH PLUG TEMPORARY DAM (SANDBAGS) 0 STAKED HAY BALES, SANDBAGS OR SILT FENCE TEMPORARY DAM (SANDBAGS) SANDBAGS CROSS SECTION FOR TRENCH FLUMING Figure 8. 18. Flumed crossing / dry crossing detail. STREAI FLOW SILT FENCE AND/OR HAY HALES APPROPRUTE j Wetland Crossing Detail . PROPOSED PIPELINE SPOIL PILE -\ TRENCH 1 TEMPORARY TRENCH PLUG FLUM E PIPE(S) T FENCE 14D/OR j1Y BALES APPROPRIATE U I1 1 U 1 SPOIL PILE EQUIPMENT CROSSING 1 I r f I t i EXISTING VEGETATION WAINTAINED TO MAX, POSSIBLE WIDTH E WETLAND BOUNDARY SIL 1" ll STAKED HAY BALES, SANDBAGS OR SILT FENCE TEMPORARY DAM (SANDBAGS) CONSTRUCTION R.Q.M. SANDBAGS CROSS SETION FOR TRENCH FLUMING 'TEMPORARY DAM (ANDBAGS) STREAM FLOW PIPELINE • .�� APPENDIX E PROJECT SEED MIXES Pipeline Final Reclamation Seed Mixture Common Name Scientific Name Pounds Pure Live Seed (PLS) per acre Mountain Brome Bromus Marginatus 6.57 Russian Wild Rye, VNS Psathyrostachys Juncea 6.43 Orchardgrass, profile Dactylis Glomerata 6.21 Intermediate Wheatgrass, Oahe Elytrigia Intermedia 6.02 QuickGuard Triticum Aestivum X Secale Cereale 5.85 Crested Wheatgrass, Hycrest Agropryron Cristatum 3.05 Pubescent Wheatgrass, Luna Total Elytrigia Trichophorum 37.75 Ibs. Compressor Station Stockpile and Disturbed Areas Reclamation Final Reclamation Seed Mixture Common Name Scientific Name Pounds Pure Live Seed (PLS) per acre Mountain Brome Bromus Marginatus 6.57 Russian Wild Rye, VNS Psathyrostachys Juncea 6.43 Orchardgrass, profile Dactylis Glomerata 6.21 Intermediate Wheatgrass, Oahe Elytrigia Intermedia 6.02 QuickGuard Triticum Aestivum X Secale Cereale 5.85 Crested Wheatgrass, Hycrest Agropryron Cristatum 3.05 Pubescent Wheatgrass, Luna Total Elytrigia Trichophorum 37.75 lbs. Table 1-2. Pinyon -Juniper Woodland and/or Mountain/Wyoming Big Sagebrush Shrubland Common Name Scientific Names Variety Season Form PLS lbs/acre* Plant Both of the Following (15% Each, 30% Total) Bottlebrush SquirreltaiI Elymus elymoides, Sitanion hystrix VNS Cool Bunch 2.0 Bluebunch Wheatgrass Pseudoroegneria spicata, Agropyron spicatum Secar, P-7, Anatone, Goldar Cool Bunch 2.8 and Two of the Following (20% Each, 40% Total) Thickspike Wheatgrass Elymus lanceolatus ssp. lanceolatus, Agropyron dasystachyum Critana, Bannock, Schwendimar Cool Sod -forming 3.4 Slender Wheatgrass Elymus trachycaulus, Agropyron trachycaulum Revenue, Pryor Cool Bunch 3.3 Western Wheatgrass Pascopyrum [Agropyron] smithii Rosana, Arriba Cool Sod -forming 4.8 and Two of the Following (15% Each, 30% Total) Indian Ricegrass Achnatherum [Oryzopsis] hymenoides Paloma, Rimrock Cool Bunch 2.8 Galleta Pleuraphis [Hilaria] jamesii Viva florets Warm Bunch/Sod- forming 2 5 Muttongrass Poa fendleriana VNS Cool Bunch 0.4 Sandberg Bluegrass Poa sandbergii, Poa secunda VNS Cool Bunch 0.4 *Based on 60 pure live seeds (PLS) per square foot, drill -seeded Double this rate (120 PLS per square foot) if broadcast or hydroseeded A-2 TABLE 1 SITE DESCRIPTIONS Table 1 Site Descriptions CONSTRUCTION PHASE Project Date Constructed Site Area (acres) tapes) Pre -Disturbance Vegetation %f tve gnrhrrld� cov Potential Pollution Sources Distance to ReceivingWaters Waters (mites) ACTIVE I.R.F.S. Current BMus Reclamation Stapes Jackrabbit Pipeline Jan-09construction Under ^347.1 Gambef oak,Pinycn JuniperAspens,Servlce berry, Snow bent', Bitterbrush. Sagebrush, Salt brush, Shadesrale, Elk sedge, Brumes, Indian Rice Grass, Needlegrasses,Wheaigrass esLupine, Milkvetch, yucca 65% Sediment from soil disturtrances, fuels fromSee leaking equipment and construction operations West Fork Parachute Creek, Willow Creek, Bear Run, Little Creek. House Log Gulch, Dot Gulch, Sheep Kill Gulch, Corral Gulch, McKay Gulch, Garden Gulch, West Fork, Parachute Creek Site Map X TBD TSD Temporary BMPs have been installed such as straw bale barriers, wattles and segment basins, 0°6 Jackrabbit Extension 20" TBD Pre -disturbances, Construction 75.9 Gambel oak, PJ. service tient', brumes, wheatgrasses, astragulas `A Sediment from sol fuels from leakrng equipment and construction operations West Fork Parachute Creek. Willow Creek, Bear Run. Little Creek, House Log Gulch, pot Gulch, Sheep Kill Gulch. Corral Gulch, McKay Gulch, Garden Gulch, West Fork, Parachute Creek See Site Map TBD TBD TBD Temporary BMPs will be installed prior and during construction phase. 0% Garden Gulch lateral TBD Pre- Construction 25.5 Gambel oak, PJ, service be brumes, �' wheatgrasses, astragulas o 65 0 sediment from soil disturbances, fuels fromGulch leaking equipment and construction operations West Fork Parachute Creek, Willow Creek, Bear Run, Little Creek. House Log Gulch, Dot Sheep Kit Gulch, Conal Gulch, McKay Gulch, Garden Gulch, West Fork. Parachute Creek See Site Map TBD TBD TBD Temporary BMPs will be installed prior and during construction phase. 0% Haystack Cascade Laterals THD 7 Pre- Construction 45.8 Gambel oak, PJ, service berry. brumes, whealgrasses, astragulas 65% Sediment from sof disturbances, fuels from leaking equipment and construction operations West Fork Parachute Creek, Willow Creek, Sear Run. Little Creek, House Log Gulch, Dot Gulch, Sheep KIIF Gulch, Garet Gulch, McKay Gulch, Garden Gulch, West Fork, Parachute Creek See Sile Map 7B0 TBD TBD Temporary BMPs wilt be instalred prior and during construction phase. e% Compressor Station Under constructionconstruction-18 Sagebrush, Bromes, forts, 65% Sediment from sail disturbances, fuels from leaking equipment and construction operations House Log Gulch <50feet X TBD TBD Temporary BMPs will be installed prior and during construction phase. 0% Pipe Yard TBD Active —11 Mountain bromes, sagebrush 65% Sediment from soil disturbances, fuels from leaking equipment and construction operations Curtis Creek See Site Map X TBD TBD Temporary BMPs, such as Shaw bale barriers, gravel 0% Laydowndisturbances, Yat 127612008 Active —7 Shadscale, fourwing, greasewood, cheatgrass, gaeeta grass, ashagulus 65% Sediment from soil fuels ham leaking equipment antl construction operations Unnamed tributaries to the Colorado River —300 yards to Colorado ricer X TBD TBD Temporary BMPs such as straw bale barriers, wattles, diversion ditches and sediment hocipa 0% Laydown Yard Jan -09 Active —21 Shadscale, fourwing, greasewood, cheatgrass, galleta grass, astragulus 65% Sediment from soil disturbances, fuels from leaking equipment and canstrudion operations Unnamed tributaries to the Colorado River 2,000 feet to Colorado River X TBD TBD Temporary BMPs such as wattles and silt fence 0% 64 Laydown Yard Jan -09 Active —i s Big sage, wheatgrasses, forbes 65% Sediment from soil disturbances, rusts from leaking equipment and construction operafions Unnamed tributaries to the White River See Site Map X TBD TBD Temporary BMPs 0% TABLE 2 SWMP REVISONS REVISION SHEET Review Date RepresentativelDesignee Printed Name RepresentativelDesignee Signature Type of revision (e.g. SWMP text, site modification, etc.) SWMP Amended (YIN) 10/13/2008 Kay Lambert -,4--,-,.-7-71--- Initial SWMP Drafting N/A 11/17/2008 Kay Lambert -' �- Amendment: snow removal Yes 12/4/2008 Kay Lambert .,,r,--.---7(--- Amendment: Laydown yard location and BMPs Yes 12/5/2008 Kay Lambert X��-' Amendment Laydown yard locations and BMP implementation Yes 1/20/2009 Kay Lambert -----"!c'..--- Amendment: Laydown yard locations and BMP implementation Yes 2/4/2009 Kay Lamberts Amendment: Pg 1,3, included 4' polyflex water pipeline to swmp Yes 2/24/2009 Kay Lambert .-wf -- - Amendment: Pg 13 Yes 5/4/2009 Kay Lambert ----_ Amendment: Pg 2, Site description, to include Haystack, Cascade, and Garden Gulch laterals. Yes 5/26/2009 Kay Lambert Amendment: Pg 2, Site description, to include 64 laydown yard, and 21 acre laydown yard. Also amended: Table 1, 2, Appendix A Yes Enterprise Products'' May 20, 2009 ENTERPRISE PRODUCTS PARTNERS LP ENTERPRISE PRODUCTS OPERATING LLC Colorado Department of Public Health and Environment Water Quality Control Division WQCD-Permits-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 RE: Modification of Certification Number COR03D733 To Whom It May Concern: ENTERPRISE PRODUCTS GP, LLC, GENERAL PARTNER ENTERPRISE PRODUCTS OLPGP, NC., SOLE MANAGER Federal Express 8689-3258 5295 Enterprise Products Operating LLC (Enterprise) is requesting to modify the stormwater discharge permit (COR03D733) to include the Jackrabbit Extension and Laterals (Jackrabbit) project as a part of the Piceance Basin Gathering System. The Jackrabbit project area includes approximately 142 acres (Jackrabbit maps included). Enterprise is preparing to construct a trunk line extension and 3 laterals to expand the existing Piceance Basin Gathering System. The expansion will consist of a 2.1 mile 20 -inch trunk line extension, the 4.2 mile Cascade Lateral, the 2.6 mile Garden Gulch Lateral, and the 4.6 mile Haystack Lateral. Totaling approximately 142 acres, the new pipeline will be installed within a new, permanent right-of-way (ROW) corridor with additional, temporary disturbance occurring within approximately 5 acres of temporary workspace. Construction is anticipated to begin July, 15, 2009, and be completed by December 2009. The lateral routes will follow the most direct route practicable from the well pads to the Jackrabbit trunk line. Proposed well pads being tied into the Piceance Gathering System are not being constructed by Enterprise. Enterprise is not responsible for impacts associated with well pad construction, operation, and/or removal. The existing Piceance Basin Gathering System stormwater management plan has been modified to include the additional project area, pipeline construction, and associated disturbance. This plan is available to the Division upon request. Should you have questions or need additional information, please contact our field environmental representative, Chris Gauthier at 303-330-7952 or me directly at 713-381-6518. 1(IIaIIebert Dire r, Environmental Compliance sin enclosures P. O. BOX 4324 HOUSTON, TX 77210.4324 713.381.6500 1100 LOUISIANA STREET HOUSTON. TX 77002-5227 www.epplp.ce n February 4, 2009 Mr. Matt Czahor Colorado Department of Public Health and Environment Water Quality Control Division — Storm Water Program WQCD-Permits-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 744 Horizon Court, Suite 140 Grand Junction, CO 81506 Phone: 970-243-3271 Fax: 970-243-3280 HRL Compliance Solutions Inc. (HCSI) was contracted by Enterprise Products Company, LLC to provide a courtesy letter of amendment to the Colorado Department of Public Health and Environment (CDPHE) Storm Water Division as recommended by Mr. Nathan Moore, CDPHE Work Group Leader. This Storm Water Management Plan letter of amendment will apply to CDPHE storm water permit number COR -03D733. This recommendation resulted from the fact that necessary provisions provided by this amendment do not fall within the typical parameters of the current CDPHE Amendment forms. This project includes the construction of a 12 mile natural gas pipeline owned and operated by Enterprise Products Operating, LLC. in the Piceance Basin. The amendment request will include an addition to the project for construction of an additional 4 inch water pipeline. This 4 inch water pipeline will be owned and operated by Marathon Oil Co. Initially both projects were permitted separately and were to be constructed independently by different contractors. However, through coordination between Marathon Oil Company, Enterprise Products Operating, LLC, and a single contractor, all pipelines will now be constructed and installed within the same disturbance area at the same time. Currently, both Enterprise (COR -03D733) and Marathon (COR -03C052) have valid permits for this project. Enterprise's permit is project specific and expected closure is 12/31/2011. Marathon included this project within their existing Area/Field wide permit. Enterprise has agreed to take responsibility of all storm water compliance requirements within the shared area of disturbance defined in Appendix A. Amendments to both company's storm water management plans will reflect this transition. Please find attached as Appendix A, a map illustrating the location of interest. Thank you for your time on this matter. If HRL Compliance Solutions Inc. can be of any further assistance, please contact me at your convenience. Respectfully, HRL Compliance Solutions, Inc. Maurice Foye Wetland Scientist cc: File Attachments: Appendix A HRL Compliance Solutions, Inc. Grand Junction, CO Environmental Consulting Professionals Piceance Basin Gathering System Jackrabbit Extension and Laterals 03 .: 07 02 11 04 07 35 08 24 3 18 6S 96W_ 07 26 05 0E 17 22 32 08 EPCO, INC. t Figure 2 Site Overview Legend ® Ja0 abbR Compressor Station ,. 20 Inch Suction 16 kith Uiachapa Cascade - COP 20-lneh Extension ..+• Garden Gulch - Haystack -- Stream Road WON VO s 0 1505 10a6 eW0' uws ors 1s -, LYa4Yir—WC 24 3 18 6S 96W_ 07 26 05 0E 17 22 32 08 42446I0ESF 11611764.64416113 LepIWarar OK«6p!itrpr ae reON ii Fr Mi"C Pw!sVs I lkvgKw[ AMASS 9Fxe9onMT dJPQder Y�arr, ',r6r % ndiEmrtodf *dad; b Weerd(Wited, Toe - - yid; VfaeYd, Tor Doak %NO C9sor51k1[0 ROT, 1 - - - Fru re -sxr r- -. 1,12,'5 I per+ Hd's NiY, +• �� _'..tJ, 14 k €r'S F•' /-' .} .. �.Y. •: r.' 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S4•ii't, ^-J • ,`! `• �..Y y,,r , Neiuery7aw E {NOT TO SCALE- See Photo Bard for Actual Survey) GCWSI CTON'RIG T -CF -WAY 110e TRRWriEaN Ef4E.ENI' p7N ` f ,j _ L. W r 4 �_-_-_-___ W . 8 f S 11 qq.. .,5, EMMERT EASEMENT_ ; _ --•- ..'. FR i ; Y .1 Tr 1 YY G4 1 . t g LEGEND pCenle4ine 1 1 Welland — PPopmadRdire CansLuc9m ROW -Way - SP Fence C) 1.1 Temporary r m mnn N eN-0k.way Si C) /1/ Dra"age Temporary Extra Waltspae To Porn Bandel*. REVISIONS JACKRABBIT GATHERING SYSTEM 40" GARDEN GULCH LATERAL ENVIRONMENTAL ALIGNMENT STA. 52+60-0 TO 106+82.5 GARFIELD COUNTY, COLORADO NO. BITE EY DESCRIPTION WO. NO. GM IDa. a wil•.ue EE IssuEoFOR WAFT IrtYIEW P.m 1 052..m EE sac. FORFWAI REVIEW ".. 1.1IS L camama EE WOE". FOR T"° EWA. Ferro.. uo.a " "a a DI 00-ZOP EE EN. -leas lens DRANTISY JST DATE Cf -FEB -2009 RUED FEN Kt i.tle°oII FE WJ,e31 Fey CRECESEB ..IST DATE -Oe -FES -2009 MED FOR COFLi1ROCTp1 110r eGKEI fM: rSp Falk 200 0 no 490 600 FEET IPPROh3 SY. 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