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Home My WebLink About1.0 ApplicationGARFIELD COUNTY Building & Planning Department 108 8th Street, Suite 401 Glenwood Springs, Colorado 81601 Telephone: 970.945.8212 Facsimile: 970.384.3470 www.garfield-county.com Pipeline Development Plan Permit GENERAL INFORMATION (To be completed by the applicant.) )> General Location of the Pipeline (Right-of-Way): Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line )> Diameter and Distance the pipeline: 30 inch diameter-7. g: miles. 12_inch diameter-0.6 miles. )> Existing Use & Size of Property in acres: Please see application, )> Description of Proposed Pipeline: 30" gathe±ing line from cottonwood Compressor Station to Parachute Creek Gas Plant ~Zone District(s): Resource Lands Zone District )>Name ofOoerator A licant: Barga th, Inc.c(o Williams Production RM Co. f 15 Arapahoe St., Tower 3 )> Address: sn; te 1 ooo Telephone: 303-606-4355 )> City: Denver State: CO Zip Code:80202 FAX: 303-629-8 81 )> Name of Owner's Representative, if any (Attorney. Planner, etc): PVCMI-Land Planning Division )> Address: 1038 County Road 323 Telephone: 970-625-5350 )> City: Rifle State: _,C"""O'--_Zip Code: 81650 FAX: 970-625-~ 22 STAFF USE ONLY )> Doc. No.: ______ Date Submitted: ____ TC Date: ______ _ )> Planner: Hearing Date:----------- I. APPLICATION SUBMITTAL REQUIREMENTS As a minimum, specifically respond to all the following items below and attach any additional information to be submitted with this application: Development Plan Submission: The applicant shall submit eight copies of the proposed development plan with the completed application form to the Planning Director. The following information must be submitted with a development plan application: (1) A vicinity map indicating the section, township, and range of the site, and its relation to surrounding public roads and municipal boundaries. (2) Project Overview: a description of the project including the length of the pipeline, diameter of the pipeline, pipeline commodity, and the general description of the pipeline route. (3) Ownership A. For individual right-of-way, a diagram showing adjacent properties and the approximate location of buildings and their uses within a distance of 350 feet of any proposed structure, facility, or area to be disturbed. This may be drawn at a smaller scale than the site plan. B. For an area plan, the map will show the property boundaries and ownership information for all private and public property included in the development area. (4) Evidence of surface owner notification and of surface agreements where the surface owner is not a party to the mineral lease. (5) Need for Proposed Action: a statement of the reason for the pipeline (6) Regulatory Permit Requirements: a table indicating the permit agency name, permit/action driving task and the task to be performed to obtain the permit. (7) Primary Project Participants: Include the names, address and phone numbers of the company representative, company and individual acting as an agent for the company, construction company contacts, federal and state agency contacts (8) Project Facilities: Identify any permanent project facilities such as permanent right-of-way, widths, meter stations, valve sets, etc. Also indicate any temporary right-of-way, width during construction, construction facilities, etc. (9) Construction Schedule: indicate the estimated start and end dates for construction, days of the week in which construction will occur, hours of day during which construction will occur. (10) Sensitive Area Survey: List the types and areas of concern along the pipeline right-of-way, such as: sensitive plant populations, cultural, archeological, paleontological resources and wetlands identified during pre-construction environmental . surveys, if applicable. (11) Land Grant/Permits/Authorizations and Stipulations: attach a copy of any land grant, permits, and authorizations including stipulations. (12) Revegetation Plan: a. A plant material list. Be specific, scientific and common names are required. Include application rate in terms of pure live seed (PLS) per acre. b. A planting schedule that includes timing, methods, and mulching. c. A revegetation security. A security may be required if, in the determination of the County Vegetation Management, the proposed project has: (i) A potential to facilitate the spread of noxious weeds (ii) A potential to impact watershed areas. (iii) A potential for visual impacts from public viewing corridors. (iv) Steep slopes (15% or greater) or unstable areas. (v) Disturbs large area (Half an acre or greater) d. The revegetation security will be in an amount to be determined by the County Vegetation Management that will be site-specific and based on the amount of disturbance. The security shall be held by Garfield County until vegetation has been successfully reestablished, or for a period of time approved by the County Vegetation Management in any specific land use action, according to the Reclamation & Revegetation Standards Section in the Garfield County Weed Management Plan. The County Vegetation management will evaluate the reclamation and revegetation prior to the release of the security. (13) A weed management plan for all Garfield County listed noxious weeds and State of Colorado listed noxious weeds that are targeted by the Commissioner of Agriculture for statewide eradication. (14) Emergency Response Plan: include a fire protection and hazardous materials spills plan, which specifies planned actions for possible emergency events, a listing of persons to be notified of an emergency event, proposed signage, and provisions for access by emergency response teams. The emergency plan must be acceptable to the appropriate fire district or the County Sheriff, as appropriate. The plan shall include a provision for the operator to reimburse the appropriate emergency service provider for costs incurred in connection with emergency response for the operator's activities at the site. (15) Traffic Impact: for construction traffic on county roads, indicate the anticipated types of vehicles, number of each type, anticipated number of trips per day per each type, county roads to be used , percentage of the construction traffic that will travel on each listed county road. (16) Staging Areas: indicate the general location of the staging areas required for pipeline construction. (17) Hydrates! Water: indicate the quantity of water required, source of water and the disposition of the water after testing. II. Referral and Review by Planning Director: The Planning Director will coordinate the review of the development plan application. Upon the filing of a complete application for development plan review, the Planning Director shall promptly forward one copy to the County Road & Bridge, Oil & Gas Auditor, Vegetation Management and Engineering Departments; the appropriate fire district or County Sheriff; the surface owners of an individual pipeline development plan; and any adjacent municipality for comment. (1) Referral comments on the proposed development shall be returned to the Planning Director no later than 18 days from the date of application for an individual site application and 30 days from the date of application for an area development plan. (2) In addition, the applicant shall notify the property owners within 200 feet of the route that are not affected surface owners with an agreement with the applicant. A sign will be posted on the portions of the route crossing or adjacent to a public road within seven days after receiving the application for an individual development plan review. Both the notice and the sign shall indicate that a development plan review application has been made, and the phone number of the Planning Department where information regarding the application may be obtained. The applicant shall notify all property owners within 200 feet of the outside boundary of an area development plan and post a sign at the intersection of each public road entering the area within seven days after receiving the application for an area development plan review. Both the notice and the sign shall indicate that a development plan review application has been made, and the phone number of the Planning Department where information regarding the application may be obtained. (3) Any determination by the Planning Director to approve or conditionally approve a development plan application must be in writing and mailed or otherwise provided to the applicant no later than 28 days for an individual pipeline development plan or 60 days for an area pipeline development plan, after the date on which the development plan application is filed. Failure to make a determination on the application within this time period shall result in the application being considered approved and the applicant's building permit or access, or other permits being processed. Ill. Development Plan Review Standards and Criteria for Approval: A development plan shall be approved or conditionally approved in accordance with the following standards and criteria. (1) Right-of-way and any associated facilities shall be located along the perimeters of surface property ownerships and not within areas of agricultural crop production as a general guide. Non-perimeter locations will be acceptable if the surface owner agrees and there is no adverse impact on adjacent properties. (2) Any equipment used in construction or operation of a pipeline must comply with the Colorado Oil and Gas Conservation Commission Rules and Regulations, Section 802, Noise Abatement. a. For any pipeline construction or operational facility that will have a substantial impact in adjacent areas, additional noise mitigation may be required. One or more of the following additional noise mitigation measures may be required: (i) acoustically insulated housing or covers enclosing any motor or engine; (ii) screening of the site or noise emitting equipment by fence or landscaping; (iii) a noise management plan specifying the hours of maximum noise and the type, frequency, and level of noise to be emitted; and (iv) any other noise mitigation measures required by the OGCC. b. All power sources used in pipeline operations shall have electric motors or muffled internal combustion engines. (3) Pipeline operations shall be located in a manner to minimize their visual impact and disturbance of the land surface. a. The location of right-of-way shall be away from prominent natural features and identified environmental resources. b. Right-of-way shall be located to avoid crossing hills and ridges, and wherever possible, shall be located at the base of slopes. c. Facilities shall be painted in a uniform, noncontrasting, nonreflective color, to blend with the adjacent landscape. Right-of-way shall be located in existing disturbed areas unless safety or visual concerns or other adverse surface impacts clearly dictate otherwise. (4) Access points to public roads shall be reviewed by the County Road & Bridge Department and shall be built and maintained in accordance with the Garfield County Road Specifications. All access and oversize or overweight ·vehicle permits must be obtained from the County Road & Bridge Department prior to beginning operation. All proposed transportation right-of- way to the site shall also be reviewed and approved by the County Road & Bridge Department to minimize traffic hazards and adverse impacts on public roadways. Existing roads shall be used to minimize land disturbance unless traffic safety, visual or noise concerns, or other adverse surface impacts clearly dictate otherwise. Any new roads created as a result of the pipeline construction, intended to be permanent for maintenance and repair operations shall be placed behind a locked gate or other barriers preventing use by recreational vehicles. Any gates or barriers need to be consistent with the surface owner's preferences. (5) In no case shall an operator engage in activities which threaten an endangered species. (6) Air contaminant emissions shall be in compliance with the applicable permit and control provisions of the Colorado Air Quality Control Program, Title 25, Resolution 7, C.R.S. (7) All operations shall comply with all applicable State Public Health and Environment, Water Quality Control standards. (8) Any proposed waste disposal or treatment facilities shall comply with all requirements of the County Individual Sewage Disposal System Regulations. (9) The proposed reclamation plan shall provide for a reasonable reclamation schedule in light of the specific surface use and surrounding land uses, and may require recontouring and revegetation of the surface to pre-disturbance conditions. The Planning Director may also approve a plan for an alternative postdisturbance reclamation, provided the surface owner and the applicant agree, and the plan is in harmony with the surrounding land uses and the Comprehensive Plan. (10) Should an abandoned pipeline be removed, it will be subject to the original revegetation and weed management requirements in the original application. IV. Conditions of Approval (1) If the Planning Director finds in reviewing a development plan application that the application meets the applicable standards set forth above, the Planning Director shall approve the site plan, and the applicant may continue the processing of the building or other associated County permit applications, or otherwise engage in the construction of the proposed pipeline. (2) If the Planning Director finds that the application does not meet an applicable standard or standards, the application shall be approved with appropriate reasonable conditions imposed to avoid or minimize the significant adverse impacts of the development. Such conditions may include, but are not necessarily limited to, the relocation or modification of proposed access roads, facilities, or structures; landscaping, buffering, or screening; posting of adequate financial guarantees; compliance with specified surface reclamation measures; or any other measures necessary to mitigate any significant impact on surrounding properties and public infrastructure. (3) Once the Planning Director issues a determination on the development plan, the determination shall not be final, and no permit based upon the determination shall be issued, for 14 calendar days after the date of the determination, in order to allow time for the applicant to appeal, or for the Board of County Commissioners to call up the determination for further review, pursuant to Sections 9.07.08 and 9.07.09 of the Pipeline Resolution. The Planning Director's determination shall become final, and permits applied for in accordance with the determination may be issued, only after the expiration of this 14-day period, and only if the determination is not reviewed and acted upon by the Board of County Commissioners at a subsequent appeal or call-up hearing. I have read the statements above and have provided the required attached information which is correct and accurate to the best of my knowledge. ~fl~~ "\\\\\\\~ (Signature of applicant/owner) Last Revised: 2/2006 GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT FEE SCHEDULE Garfield County, pursuant to Board of County Commissioners ("Board") Resolution No. 98-09, has established a fee structure ("Base Fee") for the processing of each type of subdivision and land use applications. The Base Fee is an estimate of the average number of hours of staff time devoted to an application, multiplied by an hourly rate for the personnel involved. The Board recognized that the subdivision and land use application processing time will vary and that an applicant should pay for the total cost of the review which may require additional billing. Hourly rates based on the hourly salary, and fringe benefits costs of the respective positions combined with an hourly overhead cost for the office will be used to establish the actual cost of County staff time devoted to the review of a particular project. Actual staff time spent will be charged against the Base Fee. After the Base Fee has been expended, the applicant will be billed based on actual staff hours accrued. Any billing shall be paid in full prior to final consideration of any land use permit, zoning amendment or subdivision plan. If an applicant has previously failed to pay application fees as required, no new or additional applications will be accepted for processing until the outstanding fees are paid. Checks, including the appropriate Base Fee set forth below, must be submitted with each land use application, and made payable to the Garfield County Treasurer. Applications will not be accepted without the required application fee. Base Fees are non-refundable in full, unless a written request for withdraw from the applicant is submitted prior the initial review of the application materials. Applications must include an Agreement for Payment Form ("Agreement") set forth below. The Agreement establishes the applicant as being responsible for payment of all costs associated with processing the application. The Agreement must be signed by the party responsible for payment and submitted with the application in order for it to be accepted. The complete fee schedule for subdivision and land use applications is attached. GARFIED COUNTY BUILDING AND PLANNING DEPARTMENT BASE FEES The following Base Fees shall be received by the County at the time of submittal of any procedural application to which such fees relate. Such Base Fees shall be in addition to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board for the consideration of any application or additional County staff time or expense not covered by the Base Fee, which have not otherwise been paid by the applicant to the County prior to final action upon the application tendered to the County. TYPE OF PROCEDURE Vacating Public Roads & Rights-of-Way Sketch Plan Preliminary Plan Final Plat Amended Plat Exemption from the Definition of Subdivision (SB-35) Land Use Permits (Special Use/Conditional Use Permits) • Administrative/no public hearing • Board Public Hearing only • Planning Commission and Board review & hearing Zoning Amendments • Zone District map amendment • Zone District text amendment • Zone District map & text amendment • PUD Zone District & Text Amendment • PUD Zone District Text Amendment Board of Adjustment • Variance • Interpretation Planning Staff Hourly Rate • Planning Director • Senior Planner • Planning Technician • Secretary County Surveyor Review Fee (includes review of Amended Plats, Final Plats, Exemption Plats) Mylar Recording Fee Page 2 BASE FEE $400 $325 $675 +application agency review fees and outside consultant review fees, as authorized pursuant to the Regulations, such as the Colorado Geologic Survey $200 $100 $300 $250 $400 $525 $450 $300 $500 $500 $500 $250 $250 $50.50 $40.50 $33.75 $30 Determined by Surveyor$ $11 -I" page $I 0 each additional page The following guidelines shall be used for the administration of the fee structure set forth above: I. All applications shall be submitted with a signed Agreement for Payment form set forth below. 2. County staff shall keep accurate record of actual time required for the processing of each land use application, zoning amendment, or subdivision application. Any additional billing will occur commensurate with the additional costs incurred by the County as a result of having to take more time that that covered by the base fee. 3. Any billings shall be paid prior to final consideration of any land use permit, zoning amendment, or subdivision plan. All additional costs shall be paid to the execution of the written resolution confirming action on the application. 4. Final Plats, Amended or Corrected Plats, Exemption Plats or Permits will not be recorded or issued until all fees have been paid. 5. In the event that the Board determines that special expertise is needed to assist them in the review of a land use permit, zoning amendment, or subdivision application, such costs will be borne by the applicant and paid prior to the final consideration of the application. All additional costs shall be paid prior to the execution of the written resolution confirming action on the application. 6. If an application involves multiple reviews, the Applicant shall be charged the highest Base Fee listed above. 7. Types of"Procedures" not listed in the above chart will be charged at an hourly rate based on the pertinent planning staff rate listed above. 8. The Planning Director shall establish appropriate guidelines for the collection of Additional Billings as required. 9. This fee structure shall be revised annually as part of the County budget hearing process. Page 3 GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT AGREEMENT FOR PAYMENT FORM (Shall be submitted with application) GARFIELD COUNTY (hereinafter COUNTY) and -"'-B_ar-"'-ga_t-'-'h"'-'--, ~I"-'n"'"c"-'-. ------------ (hereinafter APPLICANT) agree as follows: I. APPLICANT has submitted to COUNTY an application for Cottonwood Compress or Station to Parachute Creek Gas Plant (hereinafter, THE PROJECT). Gathering Line 2. APPLICANT understands and agrees that Garfield County Resolution No. 98-09, as amended, establishes a fee schedule for each type of subdivision or land use review applications, and the guidelines for the administration of the fee structure. 3. APPLICANT and COUNTY agree that because of the size, nature or scope of the proposed project, it is not possible at this time to ascertain the full extent of the costs involved in processing the application. APPLICANT agrees to make payment of the Base Fee, established for the PROJECT, and to thereafter permit additional costs to be billed to APPLICANT. APPLICANT agrees to make additional payments upon notification by the COUNTY when they are necessary as costs are incurred. 4. The Base Fee shall be in addition to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board of County Commissioners for the consideration of an application or additional COUNTY staff time or expense not covered by the Base Fee. If actual recorded costs exceed the initial Base Fee, APPLICANT shall pay additional billings to COUNTY to reimburse the COUNTY for the processing of the PROJECT mentioned above. APPLICANT acknowledges that all billing shall be paid prior to the final consideration by the COUNTY of any land use permit, zoning amendment, or subdivision plan. APPLICANT ~~6\~~~8-~--,~~~~" Signature Date: 4/16/06 Philip Vaughan Print Name Mailing Address: 1038 County Road 323 Rlfle, CO 81650 10/2004 Page4 TABLE OF CONTENTS BARGATH, INC. C/O WILLIAMS PRODUCTION RMT CO. COTTONWOOD COMPRESSOR STATION TO PARACHUTE CREEK GAS PLANT GATHERING LINE GARFIELD COUNTY, COLORADO DEVELOPMENT PLAN REVIEW FOR RIGHT- OF-WAY APPLICATION APRIL 2006 The items below are prepared as per Garfield County Resolution No. 2005-53. 1. Development Plan Review for Right-of-way Application Form- 9.07.03 2. Vicinity Map-9.07.04 (1) A. Right-of-way alignment sheets and legal description 3. Project Overview-9.07.04 (2) 4. Ownership-Adjacent properties to proposed right-of-way within 350 feet of any area to be disturbed-9.07.04 (3) 5. Evidence of surface owner notification and of surface agreements- 9.07.04 (4) Page I of5 6. Need for Proposed Action-9.07.04 (5) 7. Regulatory Permit Requirements-9.07.04 (6) 8. Primary Project Participants-9.07.04 (7) 9. Project Facilities-9.07.04 (8) 10. Construction Schedule~ 9.07.04 (9) Please see tab #22 "Construction Management Plan". 11. Sensitive Area Survey-9.07.04 (10) 12. Land Grant/Permits/Authorizations and Stipulations-9.07.04 (11) Please see tab #5 "Evidence of surface owner notification and of surface agreements-9.07.04 (4)". 13. Revegetation Plan-9.07.04 (12) 14. Weed Management Plan-9.07.04 (13) Please see tab #13 "Revegetation Plan 9.07.04 (12)". 15. Emergency Response Plan-9.07.04 (14) 16. Traffic Impact-9.07.04 (15) 17. Staging Areas-9.07.04 (16) 18. Hydrotest Water-9.07.04 (17) Please see tab #22 "Construction Management Plan". 19. Garfield County Assessor's Maps-9.07.05 (2) 20. Listing of Adjacent Property Owners adjacent to or within 200' of the proposed right-of-way-9.07.05 (2) 21. Authority of Authorized Representative Page 2 of5 22. Construction Management Plan A. Construction Schedule B. Project survey and staking-Pre-construction C. Project Drawings and Engineering Specifications and Standards D. Construction Phase 1. Clearing and Grading 2. Trenching 3. Boring 4. Pipe Installation 5. Backfilling 6. Hydrostatic Testing 7. Cleanup and Restoration 8. Residential areas and private property 9. Livestock Issues 10. Health and Safety 11. Waste Disposal-Includes porta-toilets Page 3 of5 E. Post Construction Operation and Maintenance F. Environmental Compliance G. Soil Conservation, Sedimentation and Erosion Control Plan H. Stream Crossing and Wetland Protection Plan I. Reclamation Plan J. Fire Prevention & Suppression K. Hazardous Materials Management & Spill Prevention L. Safety and Emergency Response Plan 23. Response letter regarding Development Plan Review Standards and Criteria for Approval. 9.07.06 A. Right-of-way locations related to perimeters of surface property ownerships. 9.07.06 (1) B. Colorado Oil and Gas Conservation Commission Rules and Regulations, Section 802, Noise Abatement. 9.07.06 (2) C. Minimize visual impact and disturbance of the land surface. 9.07.06 (3) D. Access Points to public roads. 9.07.06 (4) E. Impact on endangered species. 9.07.06 (5) F. Air contaminant emissions. 9.07.06 (6) G. Compliance with Colorado State Public Health and Environment, Water Quality Control standards. 9.07.06 (7) H. Compliance with Garfield County Individual Sewage Disposal System regulations. 9.07.06 (8) Page 4 of5 I. Reclamation plan. 9.07.06 (9) J. Abandoned pipeline removal. 9.07.06 (10) 24. Contact person for Williams Production RMT Co. for Garfield County to contact for Garfield County inspection. 9.07.11 25. Colorado Professional Engineer responsible for statement and certification of project, including a digital copy of the surveyed pipeline as-built. 9.07.11 Page5of5 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 2-Vicinity Map 9.07.04 (1) Please find attached right-of-way alignment sheets prepared by DR Griffin & Associates, Inc. These alignment sheets indicate the alignment of the proposed pipeline, surface ownership, adjacent surface ownership and pipeline length. Please contact me with any questions. Sincerely, ~rr~~ Philip B. Vaughan President PVCMI Page I of I !!: :i: VI 0:: 14.1 z WILLIAMS P RODUCTION RMT COMPANY TRACT 1 6 ,826.4% 'Err 1.29 MIL($ AMERICA N SODA, LLP TRACT 2 1 o. 739.2% r rcr 2.03 !AI LES ..., ... WILLIA MS PRODUCTION RMT COMPANY TRAC T J 5,550.H r ::T 1.05 Mll[S NOT ES EXXO N lfQBJL O(J'l£CflOH • .,Gl( TABLE MOBIL OI L CORP. ~.,. JYl ' ~ oo' "' CORP. g ., c • 0•·00·11 · ... 6e~~:~T '~rT :._ 1 ,7ri~~c; ~~~T ~ ., • • wc1·1•" u . "' 0 ~ 0.1 J IJ IL::S ~ O . .l2 MI LCS N ;: ~ : ~~:!::~~= ~: .. 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BOR'NG EO\JIP,,ENT USING flJHEA ORY (SUP BORE) OR WET (SUCK BORE) METIIOOS. ! • t!llll.; CONIR.O.CIOR IMY """-' IO GARFrELD COVNl"Y rnR 'E"P{)R.OJlY ROW flNCE CUT mo PROJ[CI ACCESS " OCS1R[D FOR II<[ WORK '0 FENCE CUTIING OR ,t.CC£SS SH>U OCCUR WlllIDUI sue~ PER"ll. FENCE CUI. GAII. 0RACll'<G mo R[SJO~HO~ Sl-IAl.L COMPLY Wini OF«WlNG NO ORG-!JOe9-914e mo COUNTY PiR"IT REOU1R£.,EMS f'rl'IOJ.. OOTH S10E$ STAGING WORK >.REA :;o·.,oo· Sf ... ENG WORK AAUI :;o·,100· • PLAN VIE\V - SCALE 1" = JO' • PROFILE VIEW· HORIZ.: l" ~ JO' VERT. = 1· ~ 10· NOTES (CONTINUED) . 1. HORIZONTAL DIR£CTIONAI. ORILUOO MEIHOOS IMY BE EUPUlYED USIOO >llBR£\MIED TECHNIQUES. TillS !>IVOLVES ORllltNG A TIGHT R.oVIUS P<i.OT ftOl.E mo .. A POINT BA.CK or TiiE "BCGrN OORE POINT.' AOVANCIN(; THE Pii.OT HOU: ·oN L"'E ANO G!W)[" TO TI-IE OPPOS11E ""ENO BORE POINT." AND THEN BACK R<M!IN(; mo P\.llllNG TH[ CARRIER PIPE ON A SINGlE OR A JQINT-BY-JO<NT OPERAIHJN. BORING WETHOO TO BE U<;[O WILL BE OCT£RMIN[0 AT TH£ TIME OF" CONSTRVCTION OCPl'.NOING UPON EQUIPMENT AV.lJl/IBIUl"Y AND OIHtll rACTORS lHE Pf!CMSIONS ANO R[O\JIR[U[NIS or ORAWJN(; HO. ORG-l3089-720J. 'TYPlCA!. BORED CROSSING Of ROAO 8Y UNCJIS[O PIPE". SH>U APPLY 10 TI-ltS WORK. THE STIPULATIONS Of JW'( HIGHWAY ACO<cY P[Rl,lllS mo R.\llROIJl COMPANY LICENSES ISSUED fOR IHtS WORK SH.'1.L BE HELD IN STRICT ACCORD. APPROPRIATE SECTIONS OF" ATTACHWEN'T 4. "'l;P[CIFOCAHONS fOR PlP[ CONSTRUCTIOIC mo ATTACH .. (NT a. "SUPPLEMfNIAL SPECIFlC.0.TIONS fOR PIP[ CONSTRUCTION". SfW.l APPLY JO THIS WORK . ' ; : ; '>ll!]L UULllPLE PIPEU~E CORR>DOR SHOWN Al APPROXllMIO lOCATKlN ONLY. CONTRAClOR TO Sl<ORT!"N OR EXTEND OOR[ l[NGIH. !!ORE PIT mo STAGING AREA lOCllTION !)ACK MO H<EMI 00 PIPELINE CLNT(RUNr TO l.cCOMOOAT( OISCO\IER[Q COl.OITIONS ~ -lB.6" ~ li: !Ill i:'j; ~ I! II ~ ~ 1111 r------. 1111 ~ ';] 1111 ~ ; II 11 ~ "''~~~~~I~~~ I !f I ~ 11 j / BOR£ PIT I 1111 io·.w· I 1111 I 1111 1111 . . .. SJ~G•NG WORK '11EA so·.15· . .. / .. ' ' ; 5260 5220 52\0 ' ; -WCATION MAP· SCALE: 1 • -1 ooo· SEC 2, T7N, R96W GARFIELD COUNTY COW RADO STRESS EVALUATION BORED CROSSING PARAMillR D[S>GN PRCSSUR£ POPE 00 Plf'E W"1.L THICKNESS SPtc<FlfD WINtUU" Yl£LD STR£NGTH DESl(;N Fl.clOR. INf{RNAL PRESSURE OCSIGN F"ACIOR. C0M91H[O STRESS SCM~ W£1CHT CONCENTRATE SURfACE ~OAO \'ERTICAL SOIL COYER SURf,t.e[ TYPE St.flfACE THICl<NESS· SORE Ow.<CTER HOOP smESS CIRCUWFERENTIAL STRESS IOI-".. C•RCUUF"ERDfJIAL sme:ss fACJOR. COMBINED STRESS CERTlflCATEOF ENGINEER RAILROAD ~ 1.200 PSIC :J.0.000 'NCH 0.5\5 INCH 70.000 PSI O.W 0.70 120 PCf <-W 10.6 fT ~~ '/' J.50 FEfl J4.95\ PSI 9.102 PSI 44.0SJ PSI 0.529 < 0.70 HIGHWAY 215 ~ 1.200 PSK: 30.000 INC>< 0515 INCH 70.000 PSI '" 0.70 120 PCf 12.000 LBS 16.5 fT ASPfW.I 6 lf<CHES 350 Ftfl J4,951 PSI S,J65 PSI <0.3\6 f'SI 0.576 < 0.70 LARF!Y G. 800\'fUI STAIESo THAT llE IS A PROfl:SSIONAL ENG<NEER (OV\L) .,.0 lNIO SU~R EMP!.oYIO 1!Y Wll!JA.US PROOl!CllON Rt.IT. PJJW:HUT(. C<ll.Of!AOO. 10 fm:PAAE A HIGHWAY CROSSING OCSIGH FOR THE :J.0" CAIH(R;ffG P•PUJllE AS SHOW 00 IHlS DRAWING: THAI IHE WORK GOM~EHCING ON OCT08ER 15. 2005. WAS PERl"ORMEO VNOOI HIS SUPUMSION AND RESPONSl!llE CHARGE: TWIT THE OCSIG>I IS CO~f>t.IANT WlTH TI<E 49Cf"l! 192 PIPEUNE SAFETY RECV\ATIOOS WIN•MU" f£DERAI. Sl.WDAAD TRANSPORTATKlN Of NATURAL AND OTHER GAS 8Y PIPELINE: TH•J TllE OCSOGN lS IN ACGOR~CE WITii THE NORUM. ANO CUSJOw.RY PRACllC(S fOR THIS TYPE AND NATURE OF" PROJECT: ANO THE DESIGN AS Sm>WN !S TO THE BEST Of r.rr KNOWU:CIGE ANO BEUEF S<JFflCIENT Nt0 IJlEOUATE FOR TH[ INTENOEO PURPOSES Of ACQU1R1NG HIGHWAY ANO IWLROAo PEl<WITS AND COMUUNICATING INSTAIJ.AllON R£001R£UENIS 10 CONSTRUCTION PERSONNEL L>RRY G. oorrrrrtT. WYOWING PROf55KJWJ.. [NGINEER (CML) AN!} I.AN() SURVEYOR NO. J~7 J:M'RIFFIN & ASSOCIATES, INC. 1414 EU( ST., SUITE202 SCALE: 1•.,30' ROCKSPRINGS, WY82901 JOBNa.: 13089 (307)362-5028 f-DA~n;-, --.,.,,~c ... ~--j MOC:IW:L C. LOCK. COL.OfWlO PROFESSIONAL ENGINEER NO. J79JJ ISSUED FOR PERMIT AND CONSTRUCTION WCA.110N, PLAN AND PROFILE CROSSING OF RAILROAD AND HIGHWAY 115 PREPARED FOR: WlLLIMfS PRODUCITON RftlT JOn GATHERING PIPELINE PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Tab 3-Project Overview-Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. April 27, 2006 Mr. Mark Bean Director Garfield County Building and Planning Department 108 8th Street, Suite 201 Glenwood Springs, CO 81601 Dear Mr. Bean, Please consider this binder our application for a Development Plan Review for Right-of- Way for the Bargath, Inc. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Project Overview The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line is a 30" diameter pipeline with a length of 7.9 miles. There are 3-12. 75" ''.jumper lines" planned to connect from the 30" diameter pipeline to the Hayes Gulch Compressor Station, Wasatch Compressor Station and the Cottonwood Compressor Station totaling 0.6 miles in length. The details and alignment of each of these items is attached in tab 2- Vicinity Map 9.07.04 (1). The pipeline is to be constructed through private property for the entire length of the pipeline. As per Garfield County Resolution 2005-53, Bargath, Inc. is required to apply for a Development Plan Review for Right-of-Way because the proposed pipeline is "greater than 12" in diameter and over two miles in length or any pipeline more than 5 miles in length". The proposed pipeline exceeds both of these threshholds. Page 1 of2 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 4-Diagram showing adjacent properties and the approximate location of buildings and their uses within a distance of 350 feet of any proposed structure, facility or area to be disturbed. 9.07.04 (3) There are no buildings within 350 feet of the proposed pipeline. Please see details and alignment attached in tab 2-Vicinity Map 9.07.04 (!). Please contact me with any questions. Sincerely, ~~~~ President PVCMI Page I of I PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 5-Evidence of surface owner notification and of surface agreements 9.07.04 (4) The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line is a 30" diameter pipeline with a length of 7.9 miles. There are 3-12.75" 'jumper lines" planned to connect from the 30" diameter pipeline to the Hayes Gulch Compressor Station, Wasatch Compressor Station and the Cottonwood Compressor Station totaling 0.6 miles in length. The details and alignment of each of these items is attached in tab 2- Vicinity Map 9.07.04 (!). Please find attached copies of the following surface agreements: I. April 28, 2006 Grant of Easement between Williams Production RMT Co. and Bargath, Inc. 2. March 24, 2006 Easement and Right-of-Way Agreement between ExxonMobil Corporation and Bargath, Inc. 3. August 30, 2005 Right-of-Way and Easement Agreement between Solvay Chemicals Inc. and Williams Production RMT Co. These agreements cover all of the easements and right-of-way necessary for installation of the entire pipeline. Please contact me with any questions. Sincerely, Philip B. Vaughan President PVCMI Page I of I GRANT OF EASEMENT THIS GRANT OF EASEMENT is entered into April~006, between Wiiiiams Production RM'f Company, 1515 Arapahoe Street, Tower Three Suite 10001 Denver, CO. 80202 hereinaftet called "Owner," and Batgath Inc, ISIS Arapahoe Street, Tower 'fhree, Suite 1000, Denver, Colorado 80202, hereinafter called "Grantee." WITNESS ETH: WHEREAS, the Owner has a surface ownership In the following lands in Garfield County, Colorado: (The "Lands"); and Tpwmhjp 6 South Range 96 We!Jt. 61b P.M. Sec:tion 3.3: PJ2 S.ctlon 34: SW/4SW/4 Towiuhlo 7 South. Range 96 West 6th P.M. Section l: sn. WHEREAS, Oran tee is the own el' and operator of oil and gas leases (the "Leases'') on and in the vicinity of the Lands in: J'OWMbip 6 SOuth. Range 96 West 6th P.M. Tuwnablp 7 South Range 96 West 6 .. P.M. Garlield County, COiorado NOW, 'fHEREFORE, for ten doll~ and other good a11d \/aluable consideration, the receipt artd sufficiency of which arc hereby acknowledged, the parties: agree as follows: 1. Grant ofEasernenl. The Owner grants to Grantee, its successors, and assigns, an easement and right-of-way in, on, over, under, through, and across the Lands to survey, construct, insrall, inspect, maintain, 0perare, repair, remove, replace 1U1d modify a pipeline or pipelines for the gatheriniit and/or transportation of oil, gas, and other hydrocarbons (the "Easement"). The £asement shall be forty (40) feet in width and will traverse the Lands aloJJ,¥ the routes shown m Exhibit "A" attached hereto and made a part hereof. 2. Change of Ownership. This Grant of Easement shall be binding upon, and its benefit and burden shall inure 101 the heirs, successors and a55igns of the parties. The agreements herein contained and the easement herein gnurted shall run with the Leases and tfie Lands, and are not personal covenanrs. 3. Use of Easement. Owner shall have the right to use and enjoy the Lamb, but shall not exercise the use and enjoyment iJJ a manner that will impair or interfere with the exercise by Gnmtce of any of the right.$ herein granted. Owner shall nDt create or permit any obstrvction, building, lake, engineering works, or other struchlre over or on the Easement. 4. Damages. The considcrarlon paid by Grantee and received by Owner includes full and llnal payment for any and all damages to the land, growing crops, pasturage, timber, fence$, bu tidings, or other improvements of Owner resulti11g from the exercise of the rigtit.s herein granted during Initial construction. Owner waives the right to collect any further or additional damages in any way arising or resulting from the exercise of the rights herein granled during Initial con1tn.1ctlon. Onmtee does agr\!C, however, to pay for actual damages to growing crops, pasturage, timber, fences. bulklin1&5 or other improvements of Owner resulting from the reconstruction, replacement or repair of the Easement or improvements thereon after its lnltlal construction. S. Tenn. This Easement shall be peipelual. EXEClITED the dates set forth in the acknowledgments. OWNER GRANTEE Williams Production RMT Company ~.(? ..,iiine: J • Barrett Tltle:AuorneyhtFacl <SCH ~e: Jooep P. Barntt .o;:;-. Thi•::::')' >..:>(!¥ STATE OF COLORADO ) COUNTY OF DENVER ) Before me1 a Notary P~b1i<:, in and for said CoU;nty and State aforesaid, do hereby certify that Joseph P. Barqtt. whose name Is subscribed IQ the foregoing instrument as Attorney lo fact ofWllUams Produstlon RMI ComnapY.. a corporation, appeared before me this da)' In person and acknowledged that he executed said instrument ~s his free and voluntary act and deed as the free and voluntary act and deed of said corporation fot the uses and purposes therein set forth. Given under my hBl!d ond NotB1ial Seal this ~~y of Af:il, 200J) . _ MyCommissionExpires: \I~ 14'~2.co"\ ~ ~ (SEAL) Notvy Public STATEOFCOLORAflO) COUNTY OF DENVER ) ROBERTA ROWE NOTARY PUBLIC STATE OF COLORADO My~ • ..,..., 111412009 Before me, a Notary Public, in and for said County and State aforesaid, do hereby certify that Joseph P. Barrell. whose name Is subscribed to the foreg;oing instrument as Assistant Sesatarv of Bargath Inc., a corporation, eppeared before me this day In persOTI and acknowledged that be executed said instrument as his free and voluntary act and d«d as the free and voluntary act and deed of said corporation for the uses and purp0scs therein set forth. Given tmder my hand and Notarial Seal this fay of April, 2006. My Commi!$ion Expires: \I ~ I'-\-@~ ...,\.d ._ Q f\rJ.,... (SEAL) Notary Public •• ,, . l\.j f.i i ·'\ ;f ... ~ II S1ATI:.. v~ CO!' ·. . _ Mr~~-1111WWW 1 Stt:TTONS J3 6 34, 'IVWNSHIPI SOlffH, RANGE !JI HST, of the Ith P.M. GHFIELD COl!NTY, COWRADO LEGEND + l'OIJND MONUMENT SECTION CORNER Jl FOUND MONUW!.NT lj QUARTER CQRl<IER e fflOJECTED CORNER NOTES: :t.ff.~ l'llOD. C:VMI', SCALE ~oo· o 1.) DRAWING REFERENCl:D TO NA027 DAl\JM.sPCSC:OC. ..U. otSTANCES SHOWN ARE GRIDIJISTN<CE& 2.) LANOOWNl!R INFORMATIOtl SHOWN HEREON BASED '-"ON INFORMATION PROVIDED BY WILU-PROOUCTION RMT 5 Q!!J lf 2-Amerl"'"'l!' \t Sodo Pipelin~· r = 1000· 1000' STA'TEMENT OF SIJRYEt'OR: LARRY G. BODYFELT STATES HE IS 8 Y OCCUPATION A REGISTEREOtANDSURVEYOREMPl.OYEOBY BARGATH INC. TO MA/11: A SURllEY OF THI! CENTERLINE OF A PIPl!LINE RIGHT-Of'-WAY AS OESCRIBEIJ NIO SHOWN ON THIS MAP CONSISTING OF2PAGES; THATTHlii SIJRVEYOl'SAID !NORK WAS MADE IJNl)ER HIS SUPERVISION AND AUTHORITY. COMPtET£D 01,JRJN<; THE FALL OF 2006.' ANO THAT SIJCH SURVEY IS ACCURATELY REPRE:SENTliiD uP0N THIS UAP. SEffiON I, TOWNSHIP 7 SOllTH, RANGE H JWST, of the 6th 1'.M. 6ARFIEUJ C01/NTY, COWRADO LEGEND + FOUNO MONUMENT SECTION CORNER ll FOUND MONJ;MENT )! QUARTl!R CORNER 0 PROJECTED CORNER NOTES: SCALE 500' 0 1.) DRAWING HEFERl:NCEO TO NAD27 OAlUM.sl'CS COC. ALL OISTANCl:S SMOWN ARE GRID!llSTANCES. 2.) LANDOWNER INFORMATION SHOWN HEREON BASEDUPOlll INFORMATION PROVIDED SY w1WAMS PRODUCTION RMT COMPANY, LANO AGENT FOR llARGATH, INC. 1,.,,. 1000' 1000' STAJ'A'MENl" OF SIJllJ'J£t'OR: LARRY G. 80DYl'EL T STATES HE IS BY OCCIJPAT/ON A REGISTl!REOLANDSURVEYOREMPLOYEDBY 8ARG.4lli /NC. TO MAl<F. A SURI£¥ OF THE CENTERLINE OF A PIPELINE RIGHT.cF·WA YA$ DESCRIBED ANO SHOWN ON THIS UAP CONS/SnNG OF 2PAGES; THllTTHE SURV~DF SAID WORK WAS MllDE 1,JNDER HIS SUPERVISION ANO AIJTHORITY. COAll'LE7EO DURING THE FN.L OF 2006: ANO Tl/AT SUCH SURVEY IS ACCURATELY REPRES1'NTEO UPON THIS MAP. EXHIBIT "A"( 2 of 2 ) Attached to and made a part of that certain Grant of Easement dated Apri~006, by and between Williams Production RMT Company and Bargath Inc. ''·· .EASEMENT AND RIGHT-OF-WAY AGREEMENT THIS EASEMENT AND RIGHT-OF-WAY AGREEMENT, dated effective this ~ 91# day of March, 2006, is made by and between EnonMobil Oil Corporation located at 16825 Northchase Drive, Suite 200, Houston, Texas 77060 ("GRANTOR") and Bargath Inc., c/o Williams Production RMT Company, located at 1515 Arapahoe Street, Tower Three, Suite 1000, Denver, Colorado, 80202 ("GRANTEE"). WITNESSE'11I: For and in consideration of the sum of Ten Dollars ($10.00) in hand paid, and other valuable consideration, the receipt and sufficiency of which is hereby acknowledged, Grantor does hereby grant, bargain, convey and confirm unto Grantee an Easement and Right-of-Way together with the right to construct, lay, maintain, operate, alter, replace remove the following: • 1 Pipeline, 30 inches in diameter, including but not limited to valves, regulators, metera, separatora, purification equipment and pipeline with fittings, appliances, and appurtenant facilities. The Pipeline will be used for the transportation and processing of oil, natW'lll gas, petrolewn products or any other liquids, gases or substances which can he transported through a pipeline and for no other purpose. The approximate route of the Pipelines are depicted by the map on the Exhibit "A", attached hereto and made a part hereof. The Easement and Right of Way will be 50 feet in width, with the centerline being the pipeline. for a total distance of approximately 20,463.42 feet. During the period of pipeline construction, Grantee will have the right to use an additional strip of land 50 feet in width along and on either side of the Easement and Right of Way described in this Agreement, except where Grantee's activities will interfere with irrigation ditches, streams or creeks. Grantee will bury the pipeline with a minimwn of 36 inches of soil from the top of the pipeline to the nonnal surface of the ground. The affected areas must be re-contoured and reseeded with species which are consistent to adjacent, undisturbed areas upon completion of construction to prevent erosion. Grantee is permitted to cut all undergrowth and other obstructions that may injure, endanger or interfere with the Easement and Right of Way. The lands that are the subject of the above described Easement and Right-of-Way, are hereafter referm:I to as "Subject Lands". Grantor reserves the right to the full use and enjoyment of the Subject Lands as long a.~ such use does not interfere with the purpOSeS herein granted. Please return to: M•. Annette Apperson Williams Production RM1' Company 1515 Arapahoe St., Twr3, Suite IOOO . Denver, CO 80202 '!'he foregoing rights and privileges of Grantee are further conditioned upon the following: I, DAMAGES: Grantee shall either repair and/or pay Grantor for damages (if any) caused by its operations on the Subject Lands relative to growing crops, buildings, ditches, fences and livestock of Grantor or Grantor's surfuce lessees. If Grantee makes any fence cut on the Subject Lands, it will install and provide for secure closure of gates. Grantee shall notify Grantor's current surface Lessee, Tony Pressler, (970) 285· 1070 of any activity which may impact their use of the Subject Lands and adjoining acreage. All gates of any kind or nature shall be kept by Grantee in the condition in which they were· foU11d upon entry. If Grantee discovers an open gate then Grantee will close the gate and notify Lessee. This provision shall apply to subsequent surface lessees upon Grantee's receipt of written notice of the new surface lessee from Grantor. If requested by Gmntor, Grantee will also install a cattle guard of sufficient size and substance to bear Grantee's traffic and to turn all livestock. All equipment or appurtenances to the pipeline or wells, which shall be on or above the surface of the ground, shall be installed in a manner to protect tl1e livestock of Grantor or Grantor's surface lessee when necessary. Grantee shall not alter the natural flow of any creeks, streams, or irrigation ditches relative to the Subject Lands. 2. MAJNTENANCE: All access roads, fences, and gates impacted by Grantee's use or operations which are subject to this Agreement shall be maintained by Grantee in as good condition as exists at the time of execution of this Agreement. Grant or shall give Grantee written notice of degradation or damage to the Subject Lands caused by Grantee's operations. Within a reasonable time after receiving written notice (not to exceed 15 days), if Grantee foils to repair or restore the roads, fences or gates to the condition described above and Grantor performs remediation or restorntion on the Subject Lands, Grantee shall reimburse Grantor for all costs associated with such remediation or restoration within fifteen (15) days of receipt by Grantee of an itemized invoice for such services. 3. NON.EXCLUSIVE USE AND RESERVATIONS: This Agreement and all other rights hereby granted are not exclusive to Grantee and are limited to the specific grant herein. This Agreement docs not, in any way whatsoever, convey any water rights or the right to use water. Grantor reserves unto itself aud its successors and assigns all rights not specifically granted to Grantee herein. 4, AGRICULTURAL LIABILITY: Grantee shall take reasonable precautions to avoid damage to agricultural operations on or adjacent to the Subject Lands. Grantee shall have and assumes liability for all cattle, crops or chattel lost as a result of Grantee's operations on the Subject Lands. 5. LOCAL SPECIES/HABITAT LIABILITY: Grantee shall have and assumes liability for all endangered species, protected species, wildlife habitat and bio-diversity damaged or destroyed as a result of Grantee's operations on the Subject Lands. 6. LIABILITY OF THE PARTIES: Gr.mice covenants and agrees to fully defend, protect, indemnify, and hold harmless Grantor, its officers, directors, employees and agents, from and against each and every claim, demand or cau'>I: of action IUld liability, cost aud/or expense (including but not limited to reasonable attorney's fees and costs incurred in defense of Grantor, its officers, directol'll, employees and/or agents), for damage or loss in connection therewith, which may be made or asserted by Grantee, Grwttee's officers, directors, purtners, members, employees and/or agents, or which may be asserted by any third party (including but not limited to Grantor's officers, directors, employees and/or agents), on account of personal injury or death or property damage C11used by, arising out of, or in any way incidental to, or in connection with Grantee's use of the Subject Lands or the rights granted hereunder, except to the extent such damage or injury results from the actions of Grantor, its contractors, agents or assigns. Where personal injury, death, or loss of or damage to property is the result of the joint actions of Grantor and Grantee, Grantee's duty of indemnification shull be in proportion to its allocable share of such action. It is expressly agreed that the indemnity obligation specifically includes, but is not limited to, claims arising under the provisions herein entitled Agricultural Liability above, and all federal laws and regulations including but not limited to the Comprehensive Environmental Response, Compensation and Liability Act, 42 U.S.C.A.§9601 et. seq. and amendments, Resource Conservation and Recovery Act, 42 U.S.C.A. §6901 et. seq. and amendments, Safe Water Drinking Act, 42 U.S.C.A. 300f et. seq. and amendments, Toxic Substances Control Act, 15 U.S.C.A.§2601 et. seq. and amendments, Clean Water Act, 33 U.S.C.A. §1251 et. seq. and its amendments, Clean Air Act, 42 U.$.C.A. §7401 and amendments, Natural Gas Pipeline Act, 49 U.S.C.A. 1671 et. seq. and amendments, Hazardous Liquid Pipeline Safety Act, 49 U.S.C.A. 2001 ct. seq. and amendments, and all state and local environment laws, rules and regulations. Neither party shall be liable to the other for any damages due to fire, earthquake, flood, windstonn and other like casualty or other causes beyond its reasonable control, nor for damages caused by public improvements or condemnation proceedings. Notwithstanding lhe foregoing, neither party shall be required to settle a labor dispute against its will. 7. LAWS, RULES AND REGULATIONS: Grantee shall at its sole expense comply with all federal laws and regulations as well as those of the Stale of Colorado and any other governmental authority having jurisdiction over Grantee's activities on the Subject Lands. 8. DRUGS, ALCOHOL AND FIREARMS: Grantee shall not allow the use, possession, transfer, purchase or sale of illegal drugs, narcotics, or other unlawful substances and materials by Grantee or its contractors, sub-contractors, agents, business invitees or other visitors while on the Subject Lands or adjacent lands. The use, possession, transfer, purchase or sale of alcoholic beverages, firearms and other weapons upon the Subject Lands or adjacent lands is absolutely prohibited. 9. HUNTING AND FISHING: No hunting, trapping or fishing is permitted on the Subject Lands or adjacent lands and no such rights are granted by this Agreement. 10. WATER AND DRAINAGE: Grantee shall have and hereby assumes absolute liability for damages to water wells, water tables, natural springs and running watercourses and water tanks within a one. quarter (1/4) mile radius of the Grantee's drilling operations insofar as damage can reasonably be determined to be the result of Grantee's operations. 11. NOTICE: Any notice or written demand to be given to Grantor or Grantee may be delivered in person, by fax or certified or registered mail, postage prepaid, addressed to the party for whom intended as follows: Exxon Mobil Corporation Attn: Ronald M. Smith, Global Real Estate 16825 Northchase Dr., Suite 200 Houston, TX 77060 (281) 654-6183 (281) 654-6392 (fax) Bargath Inc. Attn: Joseph P. Barrett c/o Williams Production RMT Company 1515 Arapahoe Street Tower Three, Suite I 000 Denver, Colorado, 80202 (970) 285-9377 (970) 285-9573 (fax) Either party may give written notice designating a different address to substitute for the one above specified when necessary. Notice shall be deemed given upon receipt. 12. TERM: This Agreement shall tenninate and all rights hereunder revert to Grantor when the Subject Lands have not been used by Grantee for the purposes herein granted for a period of two (2) years, except when non-use is caused by acts or circumstances beyond the control of Grantee. Surviving any termination it shall be Grantee's obligation to restore and reclaim all land affected by Grantee's activities (i) to the extent required by applicable law or regulation; or (ii) lo the extent reasonably practicable and economic, to its equivalent prior condition, whichever of (i) or (ii) is greater including, but not limited to, the removal of facilities. At a minimum, the affected areas shall be re· contoured and reseeded with species consistent with adjacent, undisturbed areas in a manner sutlicient to prevent erosion. 13. GOVERNTNG LAW: This Agreement and all matters pertaining hereto, including, but not limited to, matters of perfonnance, non-perfonnance, breach, remedies, procedures, rights, duties and interpretation or construction, shall be governed and detennined by the laws of the State of Colorado. 14. MISCELLANEOUS: This Agreement contains the entire agreement between Grantor and Grantee and any prior oral representations or understanding concerning this Agreement or its subject matter shall be of no force and effect. This Agreement is subject to all contracts, leases, liens, easements and encumbrances or claims of title which may affect the Subject Lands and nothing contained herein shall be construed as a covenant or warranty against the existence of any thereof. The tenns and provisions of this Agreement shall extend to and be binding upon the parties, their respective heirs, successors, legal representatives and third-party assigns; provided, however, no assignment by Grantee of the rights or obligations hereunder shall be made without Grantor's prior written consent, which shall not be unreasonably withheld. IfGrantor consents to such a'ISignment, it shall not be effective until Grantor has received an instrument or letter executed by Grantee and its assignee evidencing that such assignment has occurred and that such assignee has assumed all the obligations hereunder. Notwithstanding anything in this Agreement to the contrary, Grantee shall have the right, in its sole discretion, to assign to any affiliate or subsidiary following written notice to Grantor of such proposed assignment. IN WITNESS WHEREOF, the parties have executed this Easement and Right-of-Way Agreement the day and year indicated below but effective on the date fir.rt set forth above. GRANTOR: GRANTEE: EXXONMOBJL OIL CORPORATION BARGATHINC. By~ Anthon:T:an: Agent and Attorney-in-Fact fi Q Date: 3-z..t/-t> (.., Date: 3-30-0/.. ACKNOWLEDGEMENTS STATE OF TEXAS COUNTY OF HARRIS ) ) ) The foregoing instrument was acknowledged before me on this~y of March, 2006 by Anthony J. Tavano. Agent and Attorney-in-Fact for EXXONMOBIL OIL CORPORATION, a New Jersey corporation, on behalf of said corporation. rtlM ~ My Commission Expires: (l)JJlhOl 1'lrmJ STATE OF COLORADO ) ) CITY AND COUNTY OF DENVER) Notary Public !JECI'fON!l 5 .r.; TOW/11$111' 7 S<JIJTllNUJ HCl10lV$~ IJI TOlf'N6/m I S0ll1'll, JWVGJ H ~ rlltt Ii/fl' .M, atH/JlUJ COIJNll', COIAIWJO ~ + 'U!.MJMONIJ&IENT SECrKJN C(JffNER K FOIJND ltl()NIJllF_Nr I OlMATF.RcoR~ 0 Fff.OJECTEDt;ORNtR NClllS: 1.) DH1.Wl..0RiFEREHC£1)10 HAD21 D.\1lM4ifl'Ce¢0C. .Ill. 0.5T,.,.Ct!'S SttOmt MF.. GtmllBJ.va'S. if.) l.ANUOWNER '"FORM,,.llOf't SHOWN ~H.llSl:Dll"CH INfOH.MATIOH PROVIOED BY'Ml.llM.l5~RMT C:OMPANY,lHIO.AGF.NTFOR~IC JEll!il!MENT I IEllSEMCNI' Z £.MR)"' 0, B()QYFB.T STA~61 f'IE IS BYOl!CUrA'ffON~ RR11!11'tltEO lANOS{AtWt'IM Eftll'LOVF.DBY BAR<M?H INC. ro &WC .4 sUR\19' OF THE CCNff;JILIN! OF A l'1/IWNC RJGHr.(JF.WAYM'1t$CRIBEDAMJS~DNTHrSMAP, CQNSIS11NG OF SPA«$: JHCTTHt Sl.Af'VEYOFIAID IMMK WAS MADIE U~t:ff tll!I SUPERVISION .ANO .AVIHORITY, emt"LE11!1'fAJRHJ TH~,,-ALL~mM: ANO 1HA1"SVCH $1.IRWY IS AOCUM'n'I. V ~lD IJP()N THIS AW': TOWH-0-WIWliL....!L..feiN lotllR-0-WHldfl___.LFe-. EASEMB!fl'.1 TotidR.0-W~FNI, ..,4,'.._J~~RigNotc-MfflM. ..J.~M!l.ffff....!EL~. t.t11 Aaw. .JL_lt:ll,~ RfgNnl~M. _J£_Ld,_!:£_RVr'of~. ~r~llM, 21.11 Aon. .f72..D F.wt_~,~~Ac:IW. AtRGUKINC, RIFFIN & ASSOCIATES, INC. 30' GATHERING PIPELINE 'H'" Ill.It ~..u. ""°" ~. "",,.., l'HOJ/£(1(11'--A PROPOS~O PIPCUNE EASEMEMT CROSSING L.Nft)S OF 0.R.G. JOB#-1~9 DRAW'.lllY: IO.t. DATE:2llOOS MJPROWD&~l.CB PA'TE.:2/DAlll Cl-E.ctt20&\'::lCl8 DAl'E:2/2'1a sc;.u..l: 1'•10CIO' EXXON MOBR. CORPORATION 13089--003 !XHlerT'A' '°'' SECTIONS J 14; IOWJll6Jm 1 SOUl11 AJl(IJ $ECTNJ,t/S Jl,JJ,f 11 IOff'JfSIJU I SOIJ11l, ILl!WJNWESI, oflWllll".M• GUFIEUJWl!Nll', COllJllWJO ~ +~"gg= I filfllE~ 0 ~~DCO!lNCR SCAU 600' 0 RIFFIN & ASSOCIATES, INC. J" -1000' /(}()()' .MRGd!K IJliC. 30" GA YHERING Pf'EllNE UH Alf lrl'Mn, IKJClf '""""'1S. M'llllJ ,Jlt)NE,.,,, l6l-llflll A PROPOSED f'tJ>t;;UNE EASEMCHT CRMSING LANDS OF O.R.O. JOll-13069 OAAW'llllr. IM. DATE;:Ulllll APPROV£P&r.Lm CteQCEO pr. LS!. DAlE. 2fi1q &eA.l.E; 1' -1001 EXXONMODIL CORPORATION 13089-003 EJOllBl't .,,... 20P5 SECTIONS 5 ti 4 TOWNSHIP 1 S01!1'H AND SECTIONS 31,33 ti 34 TOWNSHIP 6 SOlJTH, RANGE 9' WEST, of t/Je 6th l' .M., GARFIELD COUNTY, COUJJWJO N09"07'1fW ~L......~ o\93.1!1\ -. .....,._ l.EGEND + FOUND MONIJMENT SECTION COflNER JI FOIJND MONUMENT )! QUARTER CORNER Q PROJECTED CORNER NOTES: Centerlin9 Eostment~ SCALE soo· o 1.) DRAWING REFERENCEO TO NAD27 OATIM-SFCS COC. ~ DISTANCES SHOWN ARE GRIDlllSTANCES. 2.) LANDOWNER INFORMATION St!OWN HEREOIH!ASB>UPON 1-.illinl)M.&TlnN Ps:Jt"'l\nnlll"n llllv' wu 1 tAtiA.~PQ,.,,,. ~r"W a.n ... -···---....... 1· -1000' 1000' EXHIBIT "A"(3 of 5 ) Attached to and made a part of that certain Easement and Right-Of-Way dated March 24, 2006, by and between ExxonMobil Oil Corporation and Bargath Inc c/o Williams Production RMT Company. .. SIICIIONS i II; JD'WNSIIU 1 Wlfl'llNID UCTJONS3J,114U l'OWJfSllU I !IVIJTB, JHiw;E H MST, lfflldll ,.M, 11.fBIEUI COllNlf, COWIWJO + IJIETAll JV.J~ T6S RDSW T7S R95W ~ 27 9ro:it C<ip 11 14 " ,. 4 ' Bron Cop RIFFIN & ASSOCIATES, INC. HHCf.lt'MWn°, MHJK~FltntliJ1 ,,,.,,. fl(llJ IU-lOll p,R,G. J081-1JOM o~~·Y: IN.. DATl!:lltlll8 APPAO'J'iO•Y:U. DAre1,,,m CHISQ(ll) IY: LG8 OA1'E: JQta ICAl.E.. M "°* LIN[ TABLE EASEMENT I l12 N61'58'3'., LtJ N71'26'4l•[ '--L14 N85'1 l'J7•E L15 N45"0l'48•t L16 NH' E Ll7 LIB Lll LW L.21 L22 m L27 L28 ••• N7R'I ' " • 1•1 S84" I I' •E :::i A•'!a•E tt11·00•1,r£ ' ., N73"40'Hl"C' LENGTH 1511.1" 112&.19 7J4.tB 531.88 107.02 ,., 9--.7J 190.86 .ea &Ot.42 67.12 8'!8.48 .n 937.54 922.02 101.19 295.J6 ~48.M ...... 1700.11 :!it8.05 2JJ.86 46200 29' +t 1 .a:i $9fi.22 $,11 +79.58 385.7" LINE TABLE EASEMENT 3 UNE BEARING LENGTH LJl ss.~·"Jn'1~-W 110.71 LJ2 S39"20'17"s l.f.9.04 LJJ 634.56 LJ4 S01"''1'J''l7"IM 123.94 LJ5 Sl7J,'48"w 148.JO LJ6 • . 1.19 &UfG41Jl, JNC. 30" GATHERING PIPELINE A PFlOPOSoO PIPELINE ~ASoMoNT CROEISINCl LNIOS Of WILLIAMS PROOUCTION RMT COMPANY 13089-003 .. '• ·, ~' I 0 SJ,"CTJDN!J s," TOWNSJm 1 soum dND Ul'1XAVSJ;U, :u TOW!llSllUI SOIJTJl, llAN<JE H MW, 11/ltl 11111'.M., (M/1/1/liU) Wl!Nll', COUJJWJO E.4SEMENT DESCRITJ10N A 50.00 ftxit v.tdf!! PMY'la"t8nt easement ft:'ll' ~ pu.poses aeross a por1iM nf SaciOn 5 and 6, T ~ 7 St,iulh on<l Seciiono 32, 33 mid:l-4, To,,,,,...BBOU!h, Rongo !l6-toft11e811 ~.M.. Glllleld County, Cdonooo. $old eBSememb*'g 25 reet each lide of the foloM'IO dual!ed cemerlnes; enement1; BeglnNng 11 a po;'ltontM ~tllne of saldSeaikin Bfrom Mftldl lhe westqu&nerCrJrn•cfakl Sedlon 6 bani /'f00•4''25"C: 1189.09 feet; thl!!l'loa aas•44·wc: 1s11.1• 6'P.lttt11e."1C*NS8•21•1••e 1126.19 litet;~ N56"00'11'E 734.18 ,_~II•-N58"49V2"E 631.88 leot; thanOll 983'36'511'E 107 .02 faot; .,...,. NS9'51"35'E 1 '141 ~.,'IP.Rt to lhc cast tle oreaid $etjlM 6; thence oondrdng lntn~l\littSP.Olion 5 Nsg-57'35"E 938.73 feet; thanoe N43'36'23'E 1110.85 leat; llenee N61'18'0ol'E 09UO ... t llOMO N55'47'22'E 809.42 feat;""""" N61'58"36•E 97.12feei to"' n01'11'1 h of said Sec1Dn6;thel'tce oon*1t.Mlglrm said Seoian 32 N01~E 898"8 loet; llencc N71'26'43'E 600.11,...; .,....., N85'11 '37'E 937.5'1 la•~""""" N45'08'48"E 922.02 leet thence N86"00'08•e 101.1u fear. ta the eaSI tie of slid S.t.iiM :t2: tnanee oonth.Jlng Jnto Mid Seclot'l 33 Nsro.,'V08"6 295.36 feet: llMw.ie N78°'13"•1~1:. 548.fiO rcet: Chonoo NtD~"l1"£ 486.44 feet; ihenoe SM•11'2A"E 1790.11le•I:1heooeS89'•1'52'E 5'8.05 r.et flenoo S73'2nr~ 2:13.86 feel: thenoe N01 '311'25"t '62.081eet thance N71"00~3'E 291 A4 leat; llanoe SIS'06'55"E 180.83 *t llOnoo S79'41'08"E 69G.22faat: .,...,. N7r2:.*'.us~e !l.11 feet IO lhe easl lne of Raid Sttetion l!l; flenoe oontAi~ .-am :uid SccUon 34 N77923'"8"E 479All Wit: flenoe S49°Wtff"E 386.to feet: thence ~3e40'18"E 1•0.•5 feel 10 e p<*ltfrom Yttlid'l 1tie 9Wftwest °'""erof•Md80dloo 3'bea11 S28'59'A!l'W191DA6 rocL Said MM!tl'IMI being 18,#3.29 feet In ~h RM t'JWtlalring21.17 8Q'89, e11emant2: Begitlting at a pl'.Wll from Ylhk:h tie •t!Uthwett comer of sHI Seojon 33 hBllfB S'6•cw'05"W 160S.97 feet: lhence S83"-45'21"W79.14 feet: lhenoe N09°07°16W 493.19 fe~l ltl a pi*tlan lhe oenleflne of Eetement 1 tcmv.Nm i\e west qutlrtet' oometof 1akl S.C.On33 bears Notr17'12"W1•08.82 leeL Easemenl3: Begll'IRing at a pofntftorn v.ttld't triawest quan.eroomettrfAaitt Secli0n34 be .. N10"43'«"W2!WOD7 l'ffl; fllnoa S54-"Z0'1~W 110.71 teei: 'hcooe S39°20"17"E 1,9.04 feot.; lhcnoo S32"40'33"E 034.58 feet; flcncc801°22'27"W 1 Zl.IJ4 fee~ lllnce 91r.J3'48"W 1 .. R.!16 fP.el. lhenc1t910•sn8"E 281,19 reel to tne lenmus polm of Easement 1 from~ tle BNhwett COtl"l9I" of Mid Section 34 ben Szst°59'.45"W 1910..46 fccL S8iCI ••amcnt bcftg 1447 .eo feet In langlh and containing 1.00 actef. RIFl'JN & ASSOCIATES, INC. "'411U(:rmft'T, JrO(lJr~.W'llJS01 'HONlf#1J .... D.R.G. .JOa1-1.»H Mlf<iUBj IJllC. 30' GATHERING Pf'l:LINI: A F'ROPOS!;,D PIPEU~ E'.ASi;:MCNT CROS$1NG LANDS OF WI.LIMAS PRODUCTION RMT COMPANY D~'l'IN8¥;tN. IDA.lE:.2f1IOll l..,,PAOWDBV;LCB ID,.tiTE:2/'l1.al ~ 1306!Ml03 I FXHIBIT "/li" 50f5 Cl£CKf08V:lOi I OA'Tl:W."8 !SCALE. Alf'IO'fo;u RIGHT-OF-WAY AND EASEMENT AGREEMENT STATE OF COLORADO COUNTY OF GARFIELD Solvay Chemical Inc., a Delaware corporation ("Grantor" herein), 2717 County Road 215, Parachute, CO 81635, for and in consideration of the sum of ten dollars and other valuable.considerations. the receipt and adequacy of which is acknowledged by Granter, to the Grantor in hand paid by Bargath Inc., c/o Williams Production RMT Company, 1515 Arapahoe Street, Tower Three, Suite 1000, Denver, Colorado 80202, does hereby grant and convey, without warranty of title, either expressed or implied, to said Grantee, ils successors and assigns, an easement Fifty feet (50') in width (being 25 feet e~her side of the centerline desclibed herein) (hereinafter called "Easement") to locate, survey and resurvey, construct, entrench, replace, maintain and operate nafllral gas pipelines, over, under, across and !hrough lands of the Granter, approximately along !he centerline shown by Exhib~ "A' (the center of the pipeline as actually constructed and located to define the centerline of this right-of-way and easement) , attached and Incorporated into this agreement by this reference, along with any necessary appurtenances including without limitation valves, cathodic equipment and appurtenances !hereto, (said pipelines, valves, cathodic equipment and appurtenances, being hereinafter sometimes collectiVely called the "Facilities"), and in addition, Grantee shall have the right to use (a) an additional temporary work space during the construction, mainlenance, repair, replacement and removal of the Faci!iUes or any part thereo(whlch shall be an addHional widtlh of thirty feet (30') along the permanent easement; (b) the right to use an additional work space of one hundred feet by one hundred fifty feet (100' X 150') along the permanent easement at the crossing of roads, railroads, streams, terraces and uneven terrain; and (c) addHional temporary work space adjacent to and along the permanent easement as may be necessary to safely conslfuct the Facilties in extended areas of uneven terrain. Grantee shall be responsible for obtaining any and all pennits required by local, county, state or federal agencies prior to commencement of construction. Prior to construction, Grantee shall pay to Granter additional consideration as set forth in that certain Confidential Agreement as to Additional Consideration referencing this Right-of-Way and Easement Agreement, of even date herewith between the parties, the terms of which confidential agreement are incorporated into this instrument by this reference. The grant of this Right-of-Way and Easement shall in no way hinder, prevent or interfere with Grantor's current or future indust<ial development operations on this or adjoining property_ This line is for the sole purpose of transporting natural gas or other hydrocarbons over, across, under and through the land along the line designated by survey of the proposed route attached hereto as Exhibit "A". Upon completion of construction, Grantee shall furnish to Grantor a reasonable •as-built" survey description of the FacilHies, to which all provisions of this agreement shall then apply. Grantee shall notify Grantor al least fifteen (15) days prior to commencing or allovving any construction -.vithin the specified Easement. With regard to the crossing of any railroad lines, all such crossings shall be bored and cased so that the top of said casing ~es at a minimum depth of six feet (6') below the then-existing surface grnde. All ingress and egress to and from, and access on and along said Right-of- Way will be coordinated between the Grantee and the Grantor. Grantee shall · .. . duct the construction. Inspection, repairs and maintenance in a manner that /cause the least practicable damage and inoonvenlenoe to Grantor. \' Subject to termination as provided herein, the rights and obtigations shall ibe continuous. Should Grantee or Hs s~ccessors and permitted assigns fail to use the Facilities for lhe transportation lor natural gas for anyoontinuous period of twenty.four months, the rights granted herein to Grantee shall terminate. Grantee may, at any time or from time ta time, remove Facilities and upon perm•nent abandonment ortermlnatlon as provided herein, shaU execute and record a «>·conveyance and release. Upon termination Grantee shall restore an\! .reclaim all land included within the Easement affected by Grantee's activilies to·ils equiva!ent prior condition. Such restoration and reclamation shall Include, bul not be limited to, the removal of Facilities located on the surface of the ground. If in the sole opinion of Grantor such Easement, including any Facililies, or the operations of the Granlee thereon, interferes with any present or reasonably near-tenm operations of Grantor or any related company, Grantee agr0es to relocate such Easement including any related F~cililles to~ loca~on on nearby lands of Grantor mutually agreeable to Grantee and Granlor. Grante~ retains the right to relocate to other lands not owned by Granter. If such Easement is relocated to lands owned by Grantor then such easement shall exist under the same terms as this agreement. Any relocation to other lands of the Grantor shall be completed within 180 days of agreement of a mulually acceptable altemate location, or if Grantee elects to relocate to lands not owned by Grantor, within 180 days of such election. Grantee shall have sixty (60) days from such request of Grantor to make such election. After such relocation, Grantee shall as soon as practicable restore the Easement lands to their condition existing prior to oonstruction of the easement, according to law and the further terms of this agreement. Grantee will provide Granlor al the completion of relocation and end of Grantee's use, a release of that portion of the lands previously occupied and used by Grantee, but not used by GranJee after such relocation. AR relocation shall be al the sole risk, cost and expense ol Grantee. Grantor reserves the right for itself, its assigns, and subsequent grantees to the use of enjoyment of said Right-of-Way, Easements and Facilities, provided such use shall not unreasonably i~iertere with Grantee's rights hereunder, including the right to have Grantor's or its assigns' facilities across/through the Easement in such a manner which shall not unreasonably interfere with Grantee's then existing use of its Easement. No such facility shall cross Grantee's Easement wlthoul Grantee's prior consent, which shall not be unreasonably withheld. Granter shal notify Grantee at least thirty (30) days prior to commencing 01 allowing construction of any such crossing which Grantor proposes to install or construct and shall be entilled lo install or construct such crossing unless Grantee, within ten (10) days after receipt of such notice, specifies a reasonable alternative depth or route, in which case the Granter, shall use the alternative deplh or route so specified. Grantee's silence shall be deemed consent. Whether or not taxes, assessmer.ts or public charges are separately assessed against Grantee, it shall pay wxes, assessments or public charges levied or imposed upon its Right-of-Way and Easement or upon other personal property, improvements or fixtures owned or placed by it within the Right-oH"-i<>>. and Easement subject to its right to contest same, prov!ded that in no evunt shr1h Grantee permit its Right-of-Way and Easement to be sold for tax purposes. In the event said taxes, assessments or ~ublic charges are not separately assessed, then promptly following written notice from Granter, Grantee siwll reimburse Grantor for any taxes, assessments or public charges i;tlribLJtab)u to ii• Riuht...,f.Wa~ and iiuem1nt. arantee l!ll'letr ii::aep It! A.lghto..Qf·Way end eaaement rree a net erea,. or!!!..., tl&ne .,,.,. •neu,,...,.. ..... at •IJ tntn11e, •0")9et to oe "9"• 19 .. ,. •• , _,,.., ,..,,,. ' 2 . owever, that the lien and encumbrance of Grantee's general mortgage and ;ndenture shall not be affected by this provision, if said mortgage is subordinated • 'to Grantee's obligation under this Right-of-Way and Easement. Grantee shall have the non-exclusive rigltl to mark the location of its Right-of-Way and Easement by suitable markers set on the ground. Grantee shall construct, operate, and maintain its Easement in a safe, cieen, lawful encl worl<manllka manner and in accordance wllh accepted ;ndustry standards including, but not limited to, the following: a. No private vehicles will be alrowed on American Soda property. b. Laydown areas will be subject to Amerlcan Soda approval and will be within Construction Easement as much as possible. c. No new roads are to be ooristructed. Current roads will be maintained and cleaned up, befQre and after pipeline f<>nstructioh, to Gran!or's satisfaction. ' · ' · d. All applicable permits must oe obtain ad by Grantee In a timely fashion. · e. Following any such conslniction, Gra11lee shall rehabllltate the Right-of-Way acrtissthe prt>pef!Y. Except for that area where pipeline crtisses irrigated fields, rehablltation instwctlons will be as follqws: The slopes shall be graded back to be stable and fertilized, seeded and mulched for revegetalion. On !he overall pipeline a seed mixture shall be as listed, fertilized as listed and some areas of critical ooncern shall require mulching. Seed Mixture Required Per Acre: Soec:ies We~tem ·wheatgrass Basin Wldrye Side oats Alkali Sacaton Fertilizer Required Per Acre: 250 bulk pounds 46-0-0 Origin Rosana Magnar Vaughn Pounds Pure Live Seed per Acre 4.0 2.0 2.0 1.0 Irrigated fields will be reseeded to match existing established crops. Any agricultural lessee of affected property shall be reimbursed for actual loss of production due to pipeline construction or operations. I. Grantee shall bury any subsurface Facilities al least to a depth of forty-two (42) inches from finished grade, except in areas in which consolidated rock is encountered. rn such consolidated rock, Grantee shall bury any subsurface Facilities at least to a depth of twenty-four (24) inches from finished grade except where such burial is not feasible due lo extreme terrain. g. Grantee shall provide casing for any pipeline within heavy load crossing access rtiutes, as reasonably designated by Grantor, from time to time, or at Grantee's option, shall bury said pipeline to a depth sumcicnt to accommodate heavy load crossing routes. r 01 · ·Mill··"··~ !ro~~~"le~""e,BP!•.)'9>9-· '- s1m11ar racil~res. 3 i. Grantee shall maintain cmrent as-built drawings for subsurface Facilities within the Easement and turnouts and crossovers from the Easement. Copies shall be furnished to Grantor, and flied with the Garfield County Planner or other applicable county authority. k. Grantee agrees to obtain and maintain insurance acceptable to Grantor which is pMmary to any other insurance or self-insurance and which names Grantor as additional insured wnh respect to liability arising out of Grantee's performance hereunder and includes a Severability of Interest Clause (Cross Liabilijy} which Additional Insured Endorsement shall not exclude or restrict coverage based upon the alleged or actual negligence of the Addnionat Insured. Such insurance shall at a minimum include: 1. Commercial General Liability Insurance Form or the equivalent with the Amendment Aggregate Limits of Insurance Endorsement CG25031185 covering Grantee's contingent liability, Premises Operations, Completed Operations and Products liability, Contrac11Jal Liability, and if requested by the Company, liability arising from explosion, collapse, or underground property damage, all with a minimum combined single limit of $1,000,000 each occurrence, $2,000,000 Aggregate for Bodily Injury and Property Damage including personal injury. 2. Comprehensive Automobile Liabilijy Insurance or Business Auto Policy covering all owned, hired, or otherwise operated non-owned vehicles with a minimum combined single limit of $500.000 each occurrence for Bodily Injury and Property Damage. 3. Workers Compensation insurance as required by Jaw, covering all states of operation, and Employers Uabiity Insurance with a minimum of 51 ,000,000 each occurrence. Grantor reserves the right to change ns minimum insurance requirements. Before commencement of consltuction, Grantee shall furnish Grantor with Policies or Certif>eates of Insurance acceptable to Grantor conflnning compliance herewnh and providing that no coverage will be canceled or materially changed prior to 30 days advance written notice to Grantor. Subrogation against Grantor shall be waived as respecls all of the insurance policies set forth above (Including but not limited to policies of any subcontractor). An Alternate Employer Endorsement may be substituted for the Addaional Insured Endorsement only with respect to Workers Compensation Insurance and Employe~s Liability insurance. The insurance re<juired hereunder in no way limits or restricts Grantee's obligations under the "Indemnity' section below. Further such insurance shall be in no way limited by any IJmitation expressed in the 'Indemnity" section below, nor any limitation placed on the indemnity therein given as a matter of Jaw. No deductible or self-insurance is permitted without wrttten approval of Grantor. I. Grantee agrees to release, protect, defend, indemnify, and hold Grantor, its parent, its subsidiary and/or affiliate companies, and the respective employees, officers, directors, or agents thereof, free and harmless from and against any and all claims, liability, demands, and causes of action of all kinds, including but not limited to claims of damage to or loss of property of Granter or others, illness or death (herein after "Claims") arising out of Grantee's performance hereunder, whether Grantor is negligent, actively, passively, or not at all, or Grantor is alleged or proven to be absolutely or strictly liable or lo have breached a.ny duty or warranty (e•press or implied) except to the extent such Claims are shown by final judgment to have been caused by the sole active negligence or willful misconduct of Granlor. The Insurance requirements herein shall 4 not be construed to fimit this indemnity. It shall be effective to the maximum extent permitted by applicable law. Grantee shall be solely responsible for the defense of any and all Claims hereunder including, but not limited to, Claims by any employee of Grantee or any employee of Grantee's subcontractor alleging the willful misconduct or sole active negligence of Grantor. The part· as agree that should any court of competent jurisdiction determine that the indemnity required herein exceeds, in extent, scope or amount that which is permitted by applicable law, such indemnity shall be construed, intelJlreted, and enforced so as to preserve the maximum indemnity which is permitted thereby. Notices under this Agreement made by one party to the other in writing by properly addressing and placing such notice postage prepaid in the United Slates malls, by telegram, by telex, or by delivery in person to the foUowlng addresses: TOGRANTOR: Solvay Chemical Inc. 2717 County Road 215 Parachute, CO 81635 TO GRANTEE: Bargath Inc c/o Williams Production RMT Company 1515 Arapahoe Street, Tower Three, Suite 1000 Denver, Colorado 80202 A notice given under any provision hereof shall be deemed given only when received by the Party to whom such notice is directed, except that any notice given by United States registered or certified mail or by telegraph properly addressed to the Party to whom given, with all postage and charges prepaid, shall be deemed given to and received by the Party to whom directed seventy-two (72) hours after such notice is filed with an operating telegraph company for immediate transmission by telegraph. The address of each Party as set forth shall be deemed its proper address until ten (10) days after the other party's receipt of notice of the giving party's new address. This Right-of-Way and Easement shall be governed by and construed in accoldance wffh the laws of the State of Colorado. The covenants contained in this Right-of-Way and Easement shall survive any assignment, surrender orterminatton of the Right-of-Way and Easement, and this Right-of-Way and Easement shall be binding upon the successors and permitted assigns of both parties hereto. This Right-of-Way and Easement and the rights hereunder shal not be assigned by Grantee without the prior written approval of the Grantor. which approval shall not be unreasonably withheld. The failure of either party to insist on strict performance of any of the Rights-of-Way and Easements, covenants, terms and conditions hereof shaH not be deemed a waiver of any rfghts or remedies that such party may have for any subsequent breach, default or nonperformance. 5 Executed on the dates shown in the acknowledgments, but effective for all purposes as Of August 30, 2005. Solvay Chemicals Inc. By: 1;;;?_ 4t<.ciH/bh Val Zolotoochln Its: Director of Environmental and Diversified Products Bargath Inc. By:~~& /Josep Barrett ~if. Its: Assistant Secretarv 6 Acknowledgment page for that Right-of-Way and Easement Agreement with effective date of August 30, 2005: COUNTY OF ( 1tLv'j!il !al ) :1 ) SS. STATE OF Colo Vt'.!!'. o ) Before me, on this Qf-?t day of !41,iq IJ~f , 2005, lhe foregoing instrument was executed by ___ V_,..a,,,lcoZ,,,o,,,lo,,,tooc""'"'hi"'n ________ _ known to me to be the duly authorized Director of Environmental and Diversified Products ofSe>lvay Chemical Inc., Grantor, and acknowledged said execution to be the signer's lree and voluntary act and deed on behalf of said Granier, for the uses and purposes therein set forth. Notary Public CITY AND COUNTY OF DENVER ) ) SS. STATE OF COLORADO ) Before me, on this 5-t(. day of S~ · , 2005, tile foregoing instrument was executed by ___ =Jo=s=e~ph~B=arre=tt~------- known to me to be the duly authorized Assistant Secretarv of Bargath Inc, Grantee, and acknowledged said execution to be the signe~s free and voluntary act and deed on behaH of said Grantee, for the uses and purposes therein set forth. Witness my hand and off.:ial seal. My oommission expires: _.,.,i)"-7~2~1/.~4"1'-------- 7 . ' SECTI0/\'34, 'TQWNSBlPlfSOIJTH,llAIVGE% ltESl; oflhe6/h P.M. SECTION 2 & 3, TOWNSHIP 7 SOUTJ1, RAJ\"GE 96 WES'"I; of th< ifl~ P.,11. + _ol.l'r.ur.eytO!tMlOlm ~fM'.(J.P ~ .... ~ ..... "'"ilW'll'fla:u:,,,..,,alil~ .. ~~ @1o.®-. r,,,,·~ -'-.:;>-tr .1111111 __ .oj.Ju~ ..UL.1 .... i. JJ.1..P•9/•l "'' ::-.-~, .......... .1P. ... •J.fN~.SJ.1l.fl~r._J;f:/_•cr~ @1o@ ra~· ~--C-~-IW''• •.• \'i._.-,,..~ --'1-JelL _JL,t1,>.11 ~r .:-.~~,._f;.,, J:au.r.rrr,;~ !l.11'o..'"s. •• JJl· •. ~{.-... TOT.U TABIILUTO!\' PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 6-Need for Proposed Action 9.07.04 (5) The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line is a 30" diameter pipeline with a length of 7.9 miles. There are 3-12.75" "jumper lines" planned to connect from the 30" diameter pipeline to the Hayes Gulch Compressor Station, Wasatch Compressor Station and the Cottonwood Compressor Station totaling 0.6 miles in length. The details and alignment of each of these items is attached in tab 2- Vicinity Map 9.07.04 (!). As per Garfield County Resolution 2005-53, Bargath, Inc. is required to apply for a Development Plan Review for Right-of-Way because the proposed pipeline is "greater than 12" in diameter and over two miles in length or any pipeline more than 5 miles in length". The proposed pipeline exceeds both of these threshholds. The need for the pipeline is two-fold: I. The pipeline is being constructed to gather natural gas from wells and the 3 compressor stations and to deliver this natural gas to the Parachute Creek Gas Plant which is owned and operated by Bargath, Inc. Additional natural gas production in the field has necessitated this additional gathering capacity. 2. The sizing of the 30" line is of larger diameter to aid in keeping pace with the projected production curve and to reduce the need for future pipelines in the same location. We have located the new 30" line in existing, disturbed right-of-way to limit surface disturbance to previously disturbed areas. Please contact me with any questions. ~ncerely,~ \_ Ph~aajh~ President PVCMI Page I of I PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 7-Regulatory Permit Requirements 9.07.04 (6) Permit Agency Town of Parachute, CO US Army Corp of Engineers Colorado Department of Public Health and Environment- Water Quality Control Division. Permit Needed Watershed District Permit Permit Status Application will be submitted in April 2006 Anticipate a hearing and issuance in June 2006 Nationwide Permit 12 for utility activities The nationwide permit issue has been reviewed by Mr. Steve Dougherty with ERO Resources. His letter is attached noting the Nationwide Permit 12 and the specific conditions. CDPS Permit Page 1 of2 The CDPS Permit Application will be submitted in April 2006. The Stormwater Management Plan is Attached in Tab 22-Construction Management Plan:. The CDPS Permit will be issued by the State of Colorado by May 31, 2006. Notation: A Garfield County Grading Permit as per IBC 2003 Appendix J is not required for this project. The pipeline right-of-way is to be constructed through properties that are assessed agricultural by the Garfield County Assessor. Please see a copy of Appendix J of the IBC 2003 attached, as amended by Garfield County. Page 2 of2 ERO ERO Resources Corp. ·2 Clarkson Street Uenver, CO 80218 (303) 830-1188 fox: 830-1199 Denver • Boise www. eroresour ces. com ero@eroresources.com April 20, 2006 Mr. Michael Gardner Senior Environmental Specialist Williams Production RMT 1058 County Road 215 Parachute, CO 81635 RE: Proposed Cottonwood 30-inch Pipeline Project Dear Mr. Gardner: On February 14, 2006, we reviewed four proposed crossings of Parachute Creek associated with the proposed construction of a 30-inch gas pipeline by Williams from the Cottonwood Gulch area to the Grand Valley Field. Parachute Creek is a water of the U.S. and activities involving the discharge of dredged and fill material are subject to the U.S. Army Corps of Engineers jurisdiction under Section 404 of the Clean Water Act. It was our understanding that the pipeline crossings of Parachute Creek and crossings of other drainages and gulches would involve conventional open trench construction. Please note that Cottonwood Gulch and Hayes Gulch and many of the tributaries to these gulches are also waters of the U.S. The crossings of these drainages with the pipeline is authorized by Nationwide Permit (NWP) 12 for utility activities through March 18, 2007 (all NWPS are subject to renewal and modification by March 19, 2007). In our opinion, Williams does not need to submit a PCN to the Corps for this work as it will not involve mechanized land clearing in a forested wetland, will not exceed 500 feet in length in waters of the U.S. and will not run parallel to the streambed. In order for the work to be authorized under NWP 12, the specific and general NWP conditions must be followed. Please note the following conditions that are the most likely to apply: • Side cast material from the trench excavation cannot be placed in such a manner that it is dispersed by currents or other forces (i.e., do not side cast into the channel of a live stream). • Any exposed slopes and stream banks must be stabilized immediately upon completion of the utility line crossing of each waterbody (i.e. revegetate ). • Perform the work during low flows. • Determine that the work will not adversely affect any federally listed species (Rob has information on T &E species in the area). (onsultanfs in Nnl11ml RIKllllffP.( Michael Gardner Williams Production RMT Pagel April 20, 2006 Please note that if trench dewatering is required or flows in Parachute Creek will need to be temporarily routed around the crossings, NWP 33 will likely be needed to authorize dewatering and/or cofferdams. NWP 33 will require a PCN. If you have any questions, please do not hesitate to contact me, Sincerely, STD:mlc f~li P.!'~.tTU1 mENP.IXcJ GRADING:; ----'·.· -:--··. ·.ti!R\t.\Crt A;ui~y·~~~!M)t\'ii{ij) lbCfllteOf~ ;gJJ<ltd·.s!i)ptl.fonlrlli~'anif·iriainltftllllc"':~~- .. $~Jr-· . . . -J>Ef:IN ....... ·. I ;' /102.1 D!lfaltliillt.ftit\lto'~attlilt.~dUqltet, tl)o! to.iim. p~ and ""1!tlli1l~u. Tlii9 st<>iron mx111Wr&- ~1vt,sw1 hom.th.1d11dioatcd llK\Uings; .liENCU. AIOl...,.'"'"'1~$ · · ~"ateolf'·io.~ma....,"'· 6)\~lifilll~TJ~~i!iiit4 rtp ....... WI. . ...... _,,... c»Ml>M.'TiON.. ~dW"lliClllitllJ bf 11. lill ·by·~ l!l~ an:~.,~i#Q*· DoWl'fDJW,.N.A~fufCQ!lectmgW!Jletf/Qm.t1!Wllk<or c1illll locatp:I on:~ • •kipe, a1xhlif~fy·&ti~crilijiit 1<1 ion appri;i"ld &illclQ&e (li<>ility . ' ·M.O~ON.~w~g~y#ftll\\~\.>1~1Ja.tftl1Ulr oi-me·rnOYCU1tn1·orw1iiiJ; .Wii«·«ii:C. ucl.vAi'loN. 'fM. ~ or ~ mmri•l by !lrtifidal ~~. ~tl;k""4111 ""a cut.; . . ~ ~ld#&i iif iiiiittt maiiiifills by ~ai ~· G'RAl>t. Ttre ViltfiCBl Tt:X:illioll IJftfle ~m Mf4CC. GRAnf., ~-'fl!f:.~ pri~r10~~· GRAD~ ft~ Thi!,Rnlif..,;<ll'lhe 611.ii arlf\c:;;Olclil<i<ill of oJl ~eft'ill'f$, ·· · · · · ~~~(;. M tllC$~rJW (Ir .fill CJi'. a,imbillJlion tlleraof. 'kEY· A ii9~ tilf pt"""'!fn ,a lllffltili otetvo:d lu .mill nuirmn1 belieaih11!i::1neQf·11.w· · • ·. . . . . ,pe.. All '11111"'·~~ io !be c:baplerhlvebcoo modifltd 1<> sh.(nlo'.111<;,hO~~~~hlpc swrB. An men~ sun&U, !ht _illclill:iti® w Whli:h fa ex· .pftt$Cd 8$ 11. .,.tto riftiori~,onbir II~ 11> vtilk:oJ .cii.tmii.t . ---.. _ ....... -~· .-. -- 5 n. 1.1SN mn1) cir~r 2 ~ (810 mm). ......,..._~ mlrtm.1m . ' . ' . Re111am U!Wlr;ibll! Mllllial ·*2 IHT~AnONAt llUll:OltlG (i<loei . -' . '• . . . . -- .. ~ . t. : \, .... . ,. ~: !~ .... ~ ... ·'. ~ . ,. ·. . . r l l· ' ' MbUt21'1. 1$111 nrml·•rf .. uin ""' ..id """""'"" .· 20 ,n, (IOSIJ iltiti1 oi:illttiiim i l ·IC..int 'lirli;if°"""' . ,.;"'"'·Diiilii fl.~r SECTIO\il .1111 l'l~Eli&tf'~m,~s ~ lil5~7,;00 ~·~ @r f;;aboraror,. JlO'.i,(i. ~~ [~~ot'.l~ali&d~~ ~7flo~cmtmiJJ· / , I . •' I ;+. I • j ![ I' ' I I / . .\ PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 8-Primary Project Participants 9.07.04 (7) Listing of company representative, company and individual acting as an agent for the company and construction company contacts. There are no federal and state agency contacts. Bargath, Inc.-Authorized Representative/Project Manager Mr. Tom Fiore P.O. Box370 Parachute, CO 81635 Phone: 970-263-2743 Cell Phone: 970-210-1641 Email: tom.fiore@williams.com DR Griffin & Associates, Inc.-Project Designer and Surveyor Mr. Larry Bodyfelt, PELS Engineering Manager D. R. Griffin & Associates, Inc. Professional Engineers & Land Surveyors 1414 Elk Street, Suite 202 Rock Springs, WY 82901 Phone: 307-362-5028 Fax:307-362-1056 Cell: 307-389-0371 Email: lbodyfelt@drg-wy.com Pipeline Construction Company The company has not been chosen. This information will be updated and submitted to Garfield County upon selection of the company. Please contact me with any questions. Page 1of1 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 9-Project Facilities 9.07.04 (8) The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line project facilities are noted in attached mapping prepared by DR Griffin & Associates in tab 2-Vicinity Map 9.07.04 (1). Construction and Permanent rights-of-way widths are detailed below. The surface agreements are attached in Tab 5-Evidence of surface owner notification and of surface agreements 9.07.04 (4). Additionally, the working space and spoil space are noted on the DR Griffin & Associates drawings in tab 2. Property Williams Production RMTCo. ExxonMobil Oil Corporation Solvay Chemicals Inc. Construction ROW 100 feet 100 feet 80 feet Please contact me with any questions. Sincerely, ~~~ President PVCMI Page I of I Permanent ROW 40 feet 50 feet 50 feet PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 11-Sensitive Area Survey 9.07.04 (10) April 27, 2006 Mr. Mark Bean Director Garfield County Building and Planning Department 108 8th Street, Suite 201 Glenwood Springs, CO 81601 Dear Mr. Bean, Please find below relevant sections of the Garfield County Zoning Resolution in regards to the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. 9.07.04 (10) "Sensitive Area Survey: List the types and areas of concern along the pipeline right-of-way, such as: sensitive plant populations, cultural, archeological, paleontological resources and wetlands identified during preconstruction environmental surveys, if applicable." 9.07.06 (3) a. notes "Pipeline operations shall be located in a manner to minimize their visual impact and disturbance of the land surface. a. The location of right-of-way shall be away from prominent natural features and identified environmental resources." 9.07.06 (5) "In no case shall an operator engage in activities which threaten an endangered species." Bargath, Inc. has contracted with a respected environmental science firm, West Water Engineering from Grand Junction, CO. Page 1 of3 West Water Engineering has prepared a review and analysis of the proposed right-of,way alignment in regards to identification of sensitive and rare plant species and federally listed threatened and endangered birds. I. There were no sensitive and rare plant species identified within the proposed pipeline right-of-way. 2. There were no federally listed threatened and endangered birds or nests identified within the proposed pipeline right-of-way. Bargath, Inc. will comply with all applicable state and federal laws during construction of the pipeline in regards to sensitive and rare plant species and federally listed threatened and endangered birds. Garfield County Resolution 2005-53 regarding pipelines was adopted on 6/13/05 and this application, and a few others pending, are the first applications to be prepared for and reviewed by Garfield County. Cultural, archeological, paleontological resources Please note that we have designed the new pipeline within existing disturbed right-of-way areas, thus, there would not be any cultural, archeological or paleontological resources within this proposed right-of-way. Issues Regarding Studies on Private Property An area of concern is the preparation of the materials noted above on private property. As noted in Tab 2 and previous areas within the application, the proposed Cottonwood Compressor Station to Parachute Creek Gathering Line is on private property. We believe that the studies required by Garfield County regarding sensitive and rare plant species, federally listed threatened and endangered birds and cultural, archeological and paleontological resources on private property can, and will, cause issues with private property owners. The studies noted are typically required for activities that occur on public property such as the U.S. Bureau of Land Management. These studies are typically not welcome and are many times not allowed on private property. Page2of3 Bargath, Inc. has been proactive in this pipeline process by contracting West Water Engineering to review these issues and to guide Bargath, Inc. in the planning and construction of the pipeline. For this reason, we are respectfully declining to provide to Garfield County a copy of the study, We are following the recommendations of the study and want to be respectful to both our private property owners and to the Garfield County permitting process. Wetlands Please see Tab 7-Regulatory Permit Requirements. Wetland disturbance is permitted by the U.S. Army Corp of Engineers via the Nationwide Permit 12 for utility activities noted. Please contact me with any questions. ~~ Philip B. Vaughan President PVCMI Page 3 of3 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 13-Rehabilitation Plan. Includes Revegetation Plan 9.07.04 (12) and Weed Management Plan 9.07.04 (13). I met with Garfield County Vegetation Manager Steve Anthony on Thursday, March 2, 2006. Steve and I reviewed the drawings for the new 30" pipeline from Cottonwood Compressor Station to Parachute Creek Gas Plant. Please see attached the "Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Rehabilitation Plan 2006." Steve Anthony noted that he will need a quantity of the acreage to be disturbed to set forth the revegetation bond for the project. It is anticipated that this bond would be released after 2 growing seasons. The disturbed area is determined using the following method: Property Construction ROW Williams Production I 00 feet RMTCo. Hayes Jumper Line I 00 feet ExxonMobil Oil I 00 feet Corporation Wasatch Jumper Line 100 feet Cottonwood Jumper I 00 feet Solvay Chemicals Inc. 80 feet Total Acreage Disturbed: 97 .963 acres. Page I of2 Length 12,377.01 1,243.70 18,440.30 572.30 1447.80 10,739.20 Acreage 28.414 2.855 42.333 1.314 3.324 19.723 97.963 acres Please contact me with any questions. Sincerely, ~~~~ President PVCMI Page 2 of2 COTTONWOOD COMPRESSOR STATION TO PARACHUTE CREEK GAS PLANT GATHERING LINE REHABILITATION PLAN 2006 The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line will be located on rangeland owned by numerous owners. The length of the pipeline is approximately 7.90 miles in length with 3-12.75' jumper lines connected from the 30' pipeline to the Hayes Gulch, Wasatch and Cottonwood Compressor stations. These 3 jumper lines have a combined length of 0.60 miles. The soil should be stripped to a depth of approximately twelve (12) inches and stockpiled at the edge of the disturbed right-of-way. The maximum depth of stockpile shall be 24' or less to preserve soil viability. The expected duration of the project is 8 to 10 weeks. Topsoil stockpiles shall be preserved and water applied to prevent wind erosion. RECLAMATION Areas disturbed by construction will be reclaimed no later than October, 2006, following pipeline construction. The objectives of reclamation will be as follows: 1. Stabilization of the disturbed areas will be conducted by providing wind and water erosion control to reduce soil loss. The stormwater management plan for the project shall be adhered to. 2. Utilize the prescribed seed mixtures and additional vegetation practices as described below to establish a self- sustaining vegetative rangeland cover. PIPELINE ABANDONMENT The pipeline will be abandoned in accordance with Colorado Oil and Gas Conservation Commission regulations in place at the time of abandonment. BACKFILLING. GRADING, AND RE-CONTOURING Reclaimed areas will be sloped as per the project drawings and specifications. Page I of3 TOPSOIL REPLACEMENT Soil salvaged during construction activities will be redistributed over the soil surface after subsoil has been replaced and additional backfilling; grading, and re-contouring steps have been completed as described below. Soil will be replaced by using front-end loaders, trackhoes, and dozers. Soil will not be replaced when it is excessively wet and/or frozen. SEEDBED PREPARATION I SOIL TILLAGE Seedbed preparation and soil tillage will be completed after the application of subsoil, topsoil, and any soil amendments. Soil tillage will be to a minimum depth of 4" utilizing a disk, chisel plow, or harrow. Seedbed preparation will also include removal of coarse fragments (rock material) that exceed 35% to 40% of the soil surface as well as rocks 8' in diameter that occupy more than 10% of the soil surface. SEEDING METHODS AND TIMES If seeding is performed in the spring, it will be accomplished by May 15; if fall seeding is performed it will be completed after August 30 and before the soil freezes. Seeding efforts will consist of drill seeding with a rangeland drill to a planting depth of Y." to Y," on slopes 3:1 or flatter. Broadcast seeding followed by harrowing or hand raking to lightly cover the seed with soil will be used on slopes steeper than 3:1, or on areas inaccessible for drill seeding equipment. All areas to be reclaimed will be mulched no later than 24 hours after seeding with a certified weed-free straw or grass hay material. Grass hay mulch will be applied at 1 Y, tons per acre, or straw mulch will be applied at 2 tons per acre. Mulch material will be crimped into the soil surface with a commercial mulch crimper, a straight disc, or bulldozer tracks if too steep to otherwise crimp mulch in place. Seed tags shall be retained after planting and submitted to the Garfield County Vegetation Manager to verify the seed mixture and the quantity of seed planted. SEED MIXTURES Please see Table 1 for the seed mixtures. WEED CONTROL PLAN Prior to construction, a qualified person will inspect the proposed right-of-way and will inventory and map the proposed project area for any listed Garfield County noxious weeds. Based on this inventory and mapping, methods, materials, and liming of weed control measures will be specified. During the life of the pipeline operation, the operator will be obligated to regularty inspect the right-of-way and to inventory and treat any listed Garfield County noxious weeds. Page 2 of3 TABLE 1 Final Reclamation Seed Mixture Common Name Scientific Name Pounds Pure Live Seed (PLS) per acre Alkali Sacaton Sporobolus airoides 1.0 Sideoats Grama Boufe/oua curtipendula 2.0 Basin Wildrye "eymus cinereus 2.0 Nestern wheatgrass Pascopyrum smifhii 4.0 TOTAL PLS 9.0 Page 3 of3 PVC MI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 15-Emergency Response Plan 9.07.04 (14). Please see attached the "Emergency Response Plan-Natural Gas Pipeline Gathering System" March 2006 revision. This document was submitted to David Blair with the Grand Valley Fire Protection District on April 19, 2006 for his review and comment. The proposed 30" pipeline is wholly within the Grand Valley Fire Protection District. Prior to start of pipeline construction, an on-site preconstruction meeting shall be held and David Blair shall be invited to attend and to speak regarding emergency response and the Grand Valley Fire Protection District. As per 9.07.04 (14), Bargath, Inc. agrees to reimburse the Grand Valley Fire Protection District for costs incurred in connection with emergency response for the operator's activities at the site. Please contact me with any questions. Sincerely, ~~ Philip B. Vaughan President PVC MI Page I of I EMERGENCY RESPONSE PLAN NATURAL GAS PIPELINE GATHERING SYSTEM GARFIELD COUNTY, COLORADO RIO BLANCO COUNTY, COLORADO I. PLAN INTRODUCTION 1. Purpose and Scope of Plan Coverage a. Plan Details This Emergency Response Plan (ERP) is specific to the Natural Gas Pipeline Gathering System, owned and operated by Williams Production RMT Company (WPC). This document is designed to provide for the safety and welfare of facility personnel, the community, the environment, and property by enabling a coordinated and efficient response by WPC personnel in the event of an emergency. When the words WPC personnel are used in this plan, they are intended to mean all WPC employees and contractors. This ERP includes details to: • make the facility and immediate surrounding area safe (people first, then property and environment); • isolate the area/facility; • notify appropriate public agencies; • identify fire extinguishing equipment, and meeting locations; • identify medical and rescue responsibilities for trained employees; • establish methods for reporting fires and other emergency events; • provide labor, materials, and equipment; • establish and maintain adequate communication with governmental agencies (fire, police, public officials, etc.) and clarify their responsibilities; • identify emergency shutdown procedures for affected equipment; • handle hazardous substances; • establish an off-site media center and return the facility to service b. Legal Authority The intent of this ERP is to comply with guidelines set forth by the Occupational Safety and Health Administration (OSHA). The Emergency Planning and Response Regulations of29 CFR 1910.38 and Hazardous Waste Operations and Emergency Response (HAZWOPER) Standards of 29 CFR 1910.120 have been specifically followed when applicable. c. Assumptions and Situations The procedures outlined in this ERP were developed under the assumption that the local fire protection and emergency response agencies will respond to emergencies at the facility when notified and will assist to the extent of their respective capabilities. The procedures outlined in this document are to be followed when responding to any of a number of events. These events include, but are not limited to the following: Natural disasters and severe weather conditions including: • floods • damaging storms • earthquakes • weather extremes (cold, blizzards, heat) • lightning and wildfires Disruption to normal operations: • Hazardous material/chemical releases from stationary or mobile sources 2 • unscheduled valve closure or safety equipment shutdown, or any unscheduled emergency shutdown • major accidents involving WPC vehicles or equipment owned by contractors • bomb threats • threats against employees or WPC facilities • fatalities or multiple hospitalizations involving employees or members of the public • disturbances on WPC property • damage to WPC property which interferes with the performance of normal business • disruption of service to customers (scheduled and unscheduled) Catastrophic Failure and Damage: • major fires • major environmental release • significant destruction of facilities The ERP also provides procedures for communications with employees, governmental agencies, and the public during emergencies to assure an effective response during an emergency situation. d. Facility Health and Safety Policy This ERP is a reflection of the WPC health and safety policies and procedures. When the facility, or a portion of the facility, is involved in an emergency event, WPC personnel shall take the appropriate action to safeguard human life, protect WPC and surrounding property, and maintain or restore operations if possible. Field personnel must immediately communicate information about any emergency event to their immediate supervisor. The supervisor will immediately initiate the appropriate notification procedure. In the event that the supervisor cannot be reached immediately, field personnel will initiate necessary notifications. 2. TABLE OF CONTENTS Section Section I -Plan Introduction Elements 1. Purpose and scope of plan coverage 2. Table of contents 3. Current revision date 4. General Facility Identification Information Section II -Core Plan Elements 1. Discovery 2. Initial response 3. Sustained actions 4. Termination and follow-up actions Section III -Annexes Annex 1. Facility and locality information Annex 2. Notification Annex 3. Response management system Annex 4. Incident documentation Annex 5. Training and exercises/drills Annex 6. Response critique and plan review and modification process Annex 7. Prevention Annex 8. Regulatory compliance and cross-reference matrices Annex 9. Document control 3 Page No. 2 2 3 4 4 4 4 7 12 12 13 13 15 15 18 18 20 22 23 25 3. Current Revision Date: March 2006 4. General Facility Identification Information a. Facility Name -Natural Gas Pipeline Gathering System b. Williams Production, RMT 4289 County Rd 215, Parachute Co 81635 (970) 285-9377 c. Garfield County Rio Blanco County Directions to facility: Main Office-Take Interstate 70 to exit 75. Follow County Rd 215 North approximately 1 mile. Tum Right into office parking lot. d. NAICS CODE: 211111 e. Key contacts for plan development and maintenance: a. Safety Representative -Greg Anoia 263-2744 b. PSM Coordinator -Bruce Reese 263-5307 f. Phone number for key contact g. Facility phone number: 970-285-9377 -Main Office h. Facility fax number: 970-285-0121 -Main Office 970-263-5313 -Man Camp 4 Section II - -Core Plan Elements 1. Discovery -Shutdown of a facility is done manually when an emergency is detected. Natural gas pipelines are not equipped with an ESD device. When a problem is discovered the proper personal are notified to close the necessary valves and to possibly shut in the wells that feed that specific part of the gathering system. The first employee to detect or to be notified of an emergency event has the responsibility to: o notify emergency personnel o notify the Incident Commander. If the designated Incident Commander is not available, contact the Alternate Incident Commander. o initiate procedures outlined in the ERP o initiate defensive measures to control the emergency event. If these measures can be done safely, and then only if the employee has been trained in emergency response or has completed Hazardous Waste Operations and Emergency Response (HAZWOPER) operations level training, defensive measures can be initiated. Using appropriate HAZWOPER training, the employee will determine if a hazardous atmosphere exists where SCBA is required. If the first employee has not completed emergency response training, including appropriate HAZWOPER training he/she shall not initiate defensive measures, but shall complete notification procedures. This checklist should be used to assist the person discovering the incident in determining what steps to take NAME OF FACILITY: DATE OF INCIDENT: YOUR NAME: TIME I sr AW ARE: FIRST RESPONDER EMPLOYEE COLLECTS THE FACTS. Briefly describe the emergency: Was the ESD activated? Yes No NIA Time: Did you activate the siren? Yes No NIA Time: Can you isolate the problem area? Yes No Time: CAUTION: Do not risk your life or the life of others. ls rescue needed? Yes No Time: Is first aid needed? Yes No Time: If yes, can vou move the victim? Yes No Time: 5 Are you in a hazardous environment? Yes No Time: Do you have the proper equipment to Yes No Time: proceed without help? Do you need to call 911 ? Yes No Time: Are you able to set up an emergency Yes No command center? Who should you contact for assistance? LOCAL EMERGENCY RESPONSE AGENCIES Time: Name Ambulance Service: Phone No. Citv: State: Time: Name Hospital: Phone No. Citv: State: Time: Name Air Life: Phone No. City: State: Time: Name Alternate Hospital: Phone No. Citv: State: LAW ENFORCEMENT Time: Name City Police: Phone No. Citv: State: Time: Sheriffs Office County: Phone No. City: State: Time: State Patrol Name: Phone No. City: State: 6 FIRE DEPARTMENT Time: Fire Department Name: Phone No. Ci : State: COMPANY PERSONNEL I Time: I N~me: City: State: I Phone No. NOTE: Notify Primary Contact as soon as you have the emergency in primary control (e.g., ESD -evacuate - rescue -first aid -isolate fuel source if fire -spill containment to prevent environmental contamination). Time: Name Proiect Supervisor: Phone No. Time: Name Facilitv Operator: Phone No. Time: Name Other Technicians: Phone No. Phone No. Time: Name Other Operators: Work No. Home No. Time: Name Safety Engineer: Work No. Home No. if you have the problem under control, start your Emergency Response Plan. LOCAL RESIDENCES Time: Name of Resident: Phone No. Location: Time: Name of Resident: Phone No. Location: Time: Name of Resident: Phone No. Location: PIPELINE COMP ANY(S) or OTHER AFFECTED COMP ANY(S) Time: Company: Phone No. Time: Companv: Phone No. Time: Companv: Phone No. UTILITIES Time: Phone No. Time: Phone No. Other Action(s) Taken -Attach extra sheets if necessarv. Time: Time: Time: Time: Time: Date: Incident Commander's Initials: 7 2. Initial Response a.1 Discovery Upon discovery of an emergency by operations personnel, the Production Supervisor and Safety Representative should be notified , .. -'1: 7 ~- Steve Soychak Brad Moss Eric Miller Dan Hoover Kevin McDennott Dave Cesark Tom Fiore GregAnoia a.2 Emergency Shutdown Procedures District Manager Production and facilities Superintendent Plant Engineer Production Supervisor Safety Engineer Principal Environmental Specialist Operations Engineer Safety Coordinator ' 11'.tili . '.II ; (970) 285-9377 (970) 216-0922 (cell) (970) 285-2282 (970) 263-3683 (cell) (970) 285-9377 (970) 270-2813 (cell) (970) 263-5303 (970) 210-2288 (cell) (970) 285-9377 (970) 309-1195 (cell) (970) 285-9377 (970) 216-9181 (cell) (970) 263-2743 (970) 210-1641 (cell) (970) 285-9377 (970) 216-6820 (cell) If an emergency necessitates that facility operation be terminated, an emergency shutdown (ESD) should be performed by authorized personnel. Closure of all necessary valves will be done manually, by authorized field personnel. Next, account for all the personnel working at the site. If the operations personnel do not know where his partner is, he should make a quick sweep of the area to warn him. If a pre-work tailgate meeting was performed, use that sign in list to help account for all personnel. Any emergency shutdown should occur with the intent of maximizing safety and minimizing property or equipment damage. If performing an emergency shutdown will potentially cause injury or death, then personnel should evacuate the facility without completing shutdown procedures. a.3 Evacuation and Personnel Accountability Personnel shall evacuate in a safe, prompt manner, following an appropriate evacuation route. Upon evacuation of the location, personnel shall at least 500 feet from the hazard. Personnel and any visitors to the site at the time of the emergency will be accounted for when evacuation is complete. a.4 Regulatory Notifications Reporting of incidents to regulatory agencies will be the responsibility of the Safety Engineer and the Principal Environmental Specialist. In the event of an emergency, the Safety Engineer and/or Principal Environmental Specialist will determine which agencies should be notified and provide information to the proper representatives. The Spill Prevention Control and Countermeasure Plan (SPCC) for the Parachute Creek Gas Plant should be referenced for re orting procedures and regulatory contacts related to s ills and releases. z~~111t111~i~~l~,, 8 Any Emergency 911 St. Mary's Air Life 1-800-322-4923 City: Grand Junction State: Colorado St. Mary's Hospital (970) 244-2273 City: Grand Junction State: Colorado Clagett Memorial Hospital (970) 625-1510 City: Rifle State: Colorado Garfield County Sheriff (970) 625-1899 City: Rifle State: Colorado State Highway Patrol (970) 248-7277 City: State: Colorado Colorado State Patrol HAZMA T Service (970) 248-7283 City: Parachute State: Colorado Rifle Fire Protection District (970) 625-1220 City: Rifle State: Colorado Other Ae:encies or Contacts (Customers, people livine: near the Facility, etc.) Garfield County Emergency Planning Committee (970) 945-8020 City: Glenwood Springs State: Colorado Colorado Department of Public Health and Environment (303) 692-2035 City: Denver State: Colorado Environmental Protection Agency 1-800-227-8917 City: State: b. Establishment of a response management system b.l Fires When responding to a fire or explosion, evaluate the situation upon discovery and alert the appropriate WPC personnel of the fire and its location. Give details of the fire to the Senior WPC Representative as soon as possible. The fire could either be 1) limited to the immediate incident location 2) be limited to the confines of the incident location with the potential for migrating off- site or 3) extends beyond the incident location. In the first situation the incident can be mitigated with trained personnel. If the emergency will not necessitate the shutdown of equipment, secure the area, and proceed with containment and control procedures as necessary. Only attempt to extinguish incipient fires with portable extinguishers and by shutting off the flow of the gas to the fire. If the fire cannot be quickly controlled, evacuate the hazard area. Keep supervision aware of the conditions, and whether additional personnel or equipment will be needed. The second situation probably cannot be mitigated without outside assistance from local emergency response agencies. The Fire Department and the Sheriffs Department must be alerted via "911 ". The Senior On-Duty WPC Representative should take command of the incident until the Senior Officer from the emergency response organization arrives on the scene and assumes control. Provide follow-up information to the responding fire department units including the Property Damage/ Loss Report/ Near Miss Report 9 (http://intranet.williams.com/eforms/forms/property loss near miss.doc) and any hazardous material release information. In the third situation, a fire beyond the confines of the incident location, the public could be affected within 60 minutes. The response cannot be mitigated without both WPC and local government resources. A more aggressive firefighting posture towards a fire may be attempted with the on-site approval and direction of a Williams Superintendent/Manager or their superiors. b.2 Hazardous Material Releases In the event of a hazardous material release, the primary concern and responsibility is the protection of life. The second responsibility is the protection of property and the surrounding environment. Notify the Senior WPC Representative of the emergency with a brief description of the incident, the location, product and specific equipment involved. Leave the area immediately if potentially harmful levels of flammable vapors/gas are present. Do not allow access to the area by unnecessary persons. If the hazardous material spill or leak is beyond the capability of the WPC personnel, evacuate the area. Personnel should rendezvous at least 500 feet from the Hazard. When possible evacuate up wind of the hazard. Refer to the Material Safety Data Sheets (MSDS' s) for information on the specific materials released in order to evaluate the hazard. Contact CHEMTREC at 1-800-424-9300 if additional information is required. Attempt to defensively control the leak or reduce the spill size by remotely closing the appropriate valve, reducing operating pressure, or rotating a leaking container so that the hole is above the level of the liquid. Proceed within the guidelines of HAZWOPER and other appropriate emergency processes to control or contain the extent of the release as well as follow proper decontamination procedures. b.3 Medical Emergency A medical emergency must be responded to immediately using available First Aid equipment. Personnel with current First Aid training should be called upon first to control the situation. Local medical emergency response agencies must be notified immediately. Emergency contacts are listed in Section II 2 a.4. Be ready with the following information: -Location of incident with directions to the scene. -Number of people injured. -Type(s) of injuries if known. -Condition of the patient if known. -Whether rescue equipment is needed to transport the victim. For example, is the victim trapped in machinery, in a confined space, etc? b.4 Severe Weather Incidents The facility operations personnel will rely on local weather forecasts and media broadcasts for warning of approaching severe weather. Upon notice or alert of severe weather, personnel should secure the facility and seek shelter. When it is safe to return to the facility, all systems and 10 equipment should be checked for damage and any emergency situations handled in accordance with the ERP. b.5 Transportation Accidents Response to vehicle accidents at or near the facility should be appropriate to the extent of injury and property damage. Accidents involving WPC or contractor vehicles that cause or have the potential to cause an emergency at the facility shall be reported as soon as safely possible to the Project Supervisor and Safety Engineer. In the case of any accident follow the instructions listed on the back of the Accident Report Kit. If this packet is not located in the vehicle contact the Safety Engineer. b.6 Vandalism/Sabotage Upon discovery of evidence of vandalism or sabotage, an immediate assessment of all equipment and systems on location shall be performed. After the assessment is accomplished and a return to normal operations is possible, a thorough documentation of the vandalism should be completed and reported to the Project Supervisor and Safety Engineer. Local law enforcement should be contacted as necessary. b.7 Bomb Threats Any threat made toward personnel or WPC property should be taken seriously and considered dangerous. This threat could be received by phone, written or electronic message, through a third party such as the media, or by actual discovery of an explosive device. When a threat has been received promptly notify the Production and Facility Superintendent, the Safety Engineer and local law enforcement agencies. The Bomb Threat Checklist provided in this section is to help access the threat and to properly document the situation. Most prank calls involve very general information, which makes it difficult to develop an appropriate response. When the bomb threat contains specific information and has positively identified a target, the threat will be treated as very serious and immediate action should be taken to evacuate the threatened area. If Possible, obtain as much information as possible about the location of the bomb, when it is set to explode, etc. The caller might refuse to give any information, or may actually want to provide detailed information so those employees can be evacuated. Whenever a specific location is included in a bomb threat, a search must be performed, but only a Military Explosive Ordinance Disposal Team, a Police Bomb Squad, or a Fire Department Bomb Squad should conduct the search. Williams personnel should not enter the facility during a bomb threat situation for any reason! II BOMB THREAT CHECKLIST Name of Facility:---------------------- Report call immediately to: Telephone Bomb threat received by: Date Questions to ask Exact wordine of threat I. When is bomb going to exolode? 2. Where is bomb ri"ht now? 3. What does bomb look like? 4. What kind of bomb is it? 5. What will cause it to exolode? 6. Did vou olace the bomb? 7. Whv? 8. What is your address? 9. What is your name? THE FOLLOWING INFORMATION REQUIRES OPINION, PERCEPTION AND JUDGEMENT PLEASE GIVE YOUR VERY FIRST IMPRESSIONS· . CALLER WAS: Male Adult Female Child ESTIMATE AGE Pre Teen Teenaize 20-40 40-50 50+ CALLER'S SPEECH: Accent Heavy Slight Foreim Soanish Asian German Other American Southern New England Other CALLER'S VOICE: Calm Soft Distinct An!ZTY Loud Slurred Excited Raooed Laugh in" Crving Rapid Slow Normal Deep Nasal Lisp Stutter Deep Breathing Familiar Rasov Clearing Throat Cracking Voice BACKGROUND Street Noises Office Machinery Animal Noises SOUNDS: Tele Booth Kitchen Ware Voices Aim lane Bus Factorv Machinerv Train Clear Music House Noises Local Weather Motor Long Distance Static Other THREAT Well Sooken Incoherent Foul Taped LANGUAGE: Irrational Message Read by Threat Maker 12 3. Sustained actions a. Facilities, Supplies, and Equipment Equipment and supplies to be used in the event of an emergency shall be stored at the facility or carried in field vehicles (if appropriate). Emergency fire equipment will be maintained and located as described in the Fire Prevention portion of the Safety Manual under section 2.5 (http://intranet.williams.com/epss/EHS/safetymanual.doc). Spill or release response materials should be stored in a protected location and replenished immediately after they are used. All emergency equipment should be inspected frequently and deficiencies corrected immediately. b. Facility Security Field personnel control general security during regular duties. Unauthorized personnel should be escorted off site. During an emergency, the Incident Commander will control security. Access to the site will be restricted to individuals involved in specific emergency response procedures. Local law enforcement may be contacted if needed to secure the facility and immediate surroundings. c. Media Relations Policy In the event of an emergency, a designated spokesperson (who receives periodic media training) at the site will handle initial communications with the public and the media. The designated spokesperson may give the media a brief outline of known facts at the scene; subsequent responses will be coordinated through the WPC Corporate Office. In addition, the designated supervisor, and only that person (usually the Production Superintendent or the District Manager) who has had media training shall speak to the media or the public about the emergency event. If reporters arrive, the designated supervisor should check their credentials to confirm that they are reporters, assign someone to escort them to the site and keep them within safe areas. 4. Termination and Follow-Up Activities a. Recovery of Operations Facility operations should commence as soon as safely possible following a facility or equipment shutdown event. An inspection and review of affected equipment or systems by safety and engineering staff members may be required before normal operations can be restored. b. Documentation The Incident Commander shall make certain all calls, conversations, pressures, quantities, or other information pertinent to an emergency event are documented per this ERP and the attachments herein. See Section II I. c. Damage Assessment Personnel designated by the Incident Commander shall visually inspect all equipment and systems following an emergency incident. Any evidence of damage will be reported to the Incident Commander and properly documented. Any damaged equipment that presents an unsafe condition shall be repaired or replaced before returning affected systems to normal operation. 13 d. Post-Emergency Activities When the emergency has ended or as soon as practical, the following should be considered: • the extent of the damage; • an estimate of time required to repair the equipment/facility. • Call personnel and have them report to duty if and when they are needed: • locate pertinent material available from stock or suppliers; • arrange for contract equipment and personnel; • prepare plans for returning the facility to service; • assist in any other activities affected by the emergency; • dispatch work crews and equipment to the site as needed; • restore facility to service as soon as repairs can be made safely and in accordance with established procedure; • evaluate the cause of failure and provide a written plan to prevent a reoccurrence of the emergency event. Emergency events will be investigated per the requirements of WPC accident investigation procedures. The investigation will determine the root cause of the emergency event and recommend any needed changes in order to prevent recurrence. The investigation will assess the effectiveness of the response team and the ERP to determine whether improvements are needed. 14 SECTION III -Annexes Annex 1. Facility and Locality Information a. Facility maps (next page) 15 • • t 8 ~ I I I ~ f 1 I I • ' J • 3 ! l l I I I I i ~ ... ~ p= l . !4 ,. I • ' ~ ! • ' I Al !ltl.U!O I I l I I I • 16 b. Facility hazard and risk analysis b.l Overview of the Facility Williams processes its own gas, as a result of this Williams has an extensive natural gas gathering system in Garfield and Rio Blanco County. The Gathering system transports over 400 million cubic feet of gas a day. The facilities operate 24 hours per day, 365 days per year. b.2 Facility Risk Evaluation A natural gas gathering system is inherently vulnerable to risk due to the constant presence of flammable gas. Fire or explosions caused by accidents or improper procedures is a serious threat to life, property and the environment and is considered to be the greatest risk to the gathering system. Following proper safety guidelines and adhering to safe-work practices can mitigate this risk. b.3 Offsite Risk Evaluation Gathering system pipe runs within close proximity to Businesses, Homes, Ranches, Utilities, Roads and other gatherings systems. As such, there exists a risk of impact or influence to the facility from offsite sources. The greatest risk to the facility is when ground is being disturbed. Anytime excavating needs to be done a one call must be made. Performing a one call is required under Colorado state law. Annex 2. Notification -included at Initial Response under Section II Annex 3. Response Management System The response team is an organized management group established to respond to an emergency and should be comprised of personnel assigned to perform the following functions (an individual may perform multiple functions, due to the size of the facility and typical staffing levels): The Incident Commander is any employee with operational responsibility (a supervisor, foreman, manager, plant operator, etc.) who has received training in emergency response. The Incident Commander must: have access to this ERP innnediately initiate procedures in the ERP and notify the innnediate supervisor. gather information on the emergency event implement actions to mitigate the emergency and coordinate and document all telephone calls, conversations, pressures, etc. pertinent to the emergency event until relieved of the responsibility by a higher level of management. The Incident Connnander is responsible for managing the emergency event, and will coordinate the following activities: Establish a command post, assemble the response team and assign team member responsibilities; Assess priorities -safety first, mitigation second; Account for location of all personnel who were in the area/facility at the start of the emergency; Implement the Emergency Response Plan; Provide on-site supervision of response activities; Assess and deploy needed resources and coordinate activities; 17 Serve as or provide for an emergency event safety officer, responsible to prevent injuries and/or death; Maintain communications with the Plant Superintendent and the Safety Engineer throughout the response; Coordinate activities of and respond to outside agencies; Coordinate response to initial contacts with local press and government agencies; Return the facility back to normal service; Complete all reports associated with the emergency event; Conduct an investigation to determine the root cause of the event and develop corrective actions to prevent recurrence. The Logistics Officer obtains necessary response equipment and material to support emergency and mitigation procedures. The Administration/Finance Coordinator arranges for humanitarian assistance, lodging, meals, etc. and manages purchase orders, contacts, etc. The On-Site Safety Officer ensures site, public, and employee safety, establishes the site safety plan, coordinates environmental response, maintains proper communication with local, state, and federal emergency response organizations, or other agencies as necessary. The On-Site Coordinator/Operations Chief is responsible for oversight and management of site activities. The Planning Officer coordinates contractors and additional company personnel as necessary. The Safety Engineer will communicate reportable incidents by telephone to appropriate regulatory agencies as soon as possible. If informed of an emergency event by a private citizen, WPC personnel will obtain as much detail as possible and call a designated field employee to investigate the status. Employees at or near the scene will respond to the emergency immediately. Facility Personnel are responsible to provide initial response and containment of the emergency. They shall: take appropriate actions to guarantee public, employee, equipment and environmental safety have completed emergency response training, including a minimum HAZWOPER incident command and technician level training (if expected to respond offensively, e.g., to stop a hazardous materials release or perform as an incident commander). Incident Commander Logistics Officer 18 Supervises the response activities and coordination of efforts, media contacts, and compliance contacts. Obtains necessary response equipment and material to support emergency and mitigation procedures. Administration/Finance Coordinator Planning Officer Safety Engineer ;lfr@fll:\lfuuJ'.'.J;'.j 1x,0<1:mi1~'ii.WiJ1illI~f · • · "°~':.L--.<:, -_;:_ -' ~-_ _, ::;:__ --"-:=: .. On-Site Safety Officer On-Site Coordinator/Operations Chief Person in Charge Operations Manager Rescue Personnel (All area field personnel): Medical Personnel (All personnel trained in First Aid &CPR: Other Area/Facility/Regional Personnel: Annex 4. Incident Documentation a. Post accident investigation " ·~ ' :-.: Arranges for humanitarian assistance, lodging and meals as well as manages purchase orders, contacts, etc. Coordinates contractors and additional company personnel as necessary Communicates reportable incidents, assists with safety equipment, & control efforts. " " " " ' " " " Ensures site, public, and employee safety, establishes the site safety plan, coordinates environmental response, maintains proper communication with agencies as necessary. Control of emergency, isolation of facility. Coordinate support efforts. Once a practice drill or an emergency incident has occurred, and an investigation into that incident has begun, the use of this emergency response plan along with the procedures and policies listed in it should be critiqued bases on its use, effectiveness, and its completeness. This section establishes basic questions, which will assist in this follow-up evaluation and is intended to meet compliance with OSHA standard CFR 1910.!20(q)(2)(x)). 19 b. Incident history Annex 5. Training and Exercisesillrills a. Training Production Supervisors or a Safety Representative will make certain that this ERP is reviewed with all new employees during their orientation (or first week of employment), and with all employees on an annual basis. At the time of orientation it will be made clear that at a minimum, the Personal Protective Equipment (PPE) required at all production facilities includes a hard hat, steel-toe shoes, safety glasses and ear protection in posted areas. Documentation of the individual employee review is required for verification of training. All records of training should be kept up to date. Each employee identified in the ERP shall be current on emergency response training that shall include the appropriate level ofHAZWOPER training. Training shall cover the following: -responses for specific roles in various ER scenarios; -the use of appropriate communication systems and alternate communication methods when the plant system is disabled; -organizing and actively taking part in a response team drill; -how to locate isolation valves/shutdown controls; -how to respond to specific failures; -how to respond to media questions; -how to interact with public officials; -where to meet in the event roads to the station are impassable and/ or communications are unavailable; -appropriate control, containment, and clean-up procedures; b. Drills and Exercises A Safety Representative will schedule an annual facility drill to assess the effectiveness of the ERP and associated procedures. The drill shall consist of an emergency scenario that exercises various procedures described in the ERP. At the completion of the drill, a review shall be performed and documented. If necessary, the ERP will be revised to correct any deficiencies noted during the review. The drills, activities and review comments should be recorded on the Facility Personnel Responsibilities form provided below, and kept on file for three years. 20 EMERGENCY DRILL FORM Date ofDrill: ____________ ~Facility Name: ___________ _ Attendees: -------------- Drill Scenario: _____________________________ _ Emergency Equipment/Activities lnvolved!Topics Covered (check if yes): SCBA: --------------~Emergency Rescue: _________ _ Portable Fire Extinguishers: Plant Shutdown:. ___________ _ Wheeled Fire Extinguishers: Equipment Shutdown: _________ _ Eye/Face Equipment: Lockout/Tagout: ___________ _ SPCC: CPR/First Aid: __________ _ HAZWOPER: Hazard Communication: ---------0th er s :. _______________________________ _ Contacts Made: Safety Department: __________ Operations Manager: _________ _ Others: _______________________________ ~ Discussion Points/Comments: Training Conducted/Accomplished: 21 Annex 6. Response Critique and Plan Review and Modification Process Questions: The following are the types of questions that should be answered, after an incident has been mitigated or after a practice drill has been completed, in order to evaluate this Emergency Response Plan. I. Was the Emergency Response Plan implemented in a timely and efficient manner? 2. Were evacuation alarms activated, escape routes followed and personnel accounted for? 3. Were the proper authorities and agencies notified in a timely manner? 4. Were proper procedures/checklists followed and were they effective in resolving the incident? 5. Was the correct personal protective equipment used? 6. How could this emergency response plan be changed to increase its effectiveness? 7. Was the Emergency Response Plan implemented in a timely and efficient manner? 8. Were evacuation alarms activated, escape routes followed and personnel accounted for? 9. Were the proper authorities and agencies notified in a timely manner? 10. Were proper procedures/checklists followed and were they effective in resolving the incident? 11. Was the correct personal protective equipment used? 12. How could this emergency response plan be changed to increase its effectiveness? This emergency response plan should be revised if it is determined that its use, procedures or policies are not effective in mitigating the practice drill or emergency incident. 22 EMERGENCY RESPONSE PLAN REVIEW RECORD This ERP should be considered a controlled document and treated accordingly. A Safety Representative is responsible for revising and updating the ERP on a regular basis. Name of Facility: Williams Natural Gas Pipeline Gathering Systems (Parachute Co. E&P) Date of Initial Plan Development:~3"'/-=-3"-'0/""0"'"6 ______________ _ Date of Last Review for Plan Accuracy: ~M=ar~c=h~0~6 _______ _ Date of Last Revision: March 06 --~~~~--------------~ Production and Facility Superintendent Name: __ =B=ra=d~M~o=ss~--------- Plant Superintendent Signature: _____________ Date: _____ _ DATE RESPONSIBLE ACTION PARTY August 2003 Cordilleran Original Documents Summer2004 C. Hale/ K. Annual Revision McDermott March2006 Greg Anoia Conversion to Integrated Contingency Plan format, Annual revision 23 Annex 7. Prevention a. General Prevention Policy Incidents at the facility will be minimized through personnel training, regular safety inspections, and implementation of the policies and procedures outlined in this ERP and the WPC safety program. The primary responsibility for prevention of emergency incidents is placed on facility operations personnel. Any substantial change or addition to facility equipment or process will necessitate a review of safety procedures and a revision of applicable procedures in this ERP. b. Fire Prevention Policy Please refer to the Safety Manual for information concerning fire prevention. This is available from the Safety Engineer or on the Intranet at http://intranet.williams.com/epss/EHS/safetymanual.doc. c. Facility Safety Inspections and Audits Periodic safety audits along with regular operations and maintenance routines will be carried out with the intent of identifying and minimizing potential safety hazards and poor housekeeping practices. 24 Annex 8 R I . eeu atory c omphancean dC ross-Reference Matrices REGULATORY REGULATORY SUBJECT CITATION LOCATION IN WPC PLAN OSHA Emergency Response 29 CFR 1910.120 Program Pre-emergency pla1U1ing and (p)(S)(ii)(A) Section I I, 2a.2, 2a.3 coordination with outside parties. Perso1U1el roles, lines of authority, (p )(8)(ii)(B) Sections I 1, 3b, 3c, 2a.l training, and communication. Ailllex 1 b, 3, 5 Emergency recognition and (p )(8)(ii)(C) Sections I 1 c, I 1 d prevention. Ailllex lb Safe distances and places of (p )(8)(ii)(D) Section II 2a.3, II 2b refuge. Ailllex la Site security and control. (p )(8)(ii)(E) Section II 3.b Evacuation routes and procedures. (p )(8)(ii)(F) Section II 2a.2 Ailllex la Decontamination procedures. (p )(8)(ii)(G) Section II 4 Emergency medical treatment and (p )(8)(ii)(H) Section II 2b.3 first aid. Emergency alerting and response (p )(8)(ii)(I) Section II 2 procedures. Critique ofresponse and follow-(p )(8)(ii)(J) Ailllex 6 up. PPE and emergency equipment. (p )(8)(ii)(K) Section II 3a Emereency Plannine 1910.120(0)(2) Coordination ( q)(2)(i) Section II 2 Lines of authority (q)(2)(ii) Ailllex 3 Emergency recognition (q)(2)(iii) Section II Safe distances ( q)(2)(iv) Section II 2b Security and control (q)(2)(v) Section II 3 b Evacuation (q)(2)(vi) Section II 2a.3 Decontamination ( q)(2)(vii) Section II 2b Medical treatment (q)(2)(viii) Section II 2b.3 Alerting and response (q)(2)(ix) Section II 1, 2 Critique of response (q)(2)(x) Ailllex 6 PPE and equipment (q)(2)(xi) Section II 3a Incident Command 1910.120(q)(3) Senior officer ( q)(3)(i) Ailllex 3 Size up of conditions ( q)(3)(ii) Section II 1 Emergency operations (q)(3)(iii) Section II 25 UseofSCBA (q)(3)(iv) Section II I Limiting access (q)(3)(v) Section II 3b Back-up personnel (q)(3)(vi) Annex 3 Safety official (q)(3)(vii) Annex 3 Safety authority (q)(3)(viii) Annex 3 Decontamination (q)(3)(ix) Section II 2b SCBA (q)(3)(x) Section II I OSHA Emergency Action Plans 29 CFR 1910.38 Reporting an emergency (c)(l) Section II 2a Emergency evacuation, including (c)(2) Section II 2a.2 exit routes Annex la Critical operations procedures ( c )(3) Section II 2 before evacuation Accounting for employees after ( c )( 4) Section II 2a.3 evacuation Procedures for employees (c)(5) Section II 2b.3 performing rescue or medical duties Contacts for further information (c)(6) Section II 2a. l Alarm system (d) Section II 2a.2 Training (e) Annex 5 - Review of ERP (f) Annex 6 Annex 9. Document Control 26 a. Plan Distribution This document is the property of the Williams Production RMT Company (WPC). Controlled copies shall be distributed at a minimum to the WPC personnel in Section II 2 a.I and to various govermnent agencies for the response coordination. All recipients of this Plan must complete and return the Receipt Form (See below) to WPC. This action is necessary to acknowledge receipt of the Plan and to register the document for future updates and change distributions. b. Registration Form All Recipients of the Plan must complete and return this form to register it for distribution and future change/updates. If this form is not returned, the copy of the Plan will be recalled. This is to acknowledge receipt of the Williams Parachute Creek Emergency Response Plan: Name: _______________ _ Company: ________________ _ Division: ------------------ Street I P.O. Box No.:------------------ Zip Code: ___________ _ Return To: Williams Production RMT Company Safety Representative 1058 County RD #215 Parachute, CO 81635 27 PVCMI Land Planning Division 103 8 County Road 3 23 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway .com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 16-Traffic Impact 9.07.04 (15). The pipe materials are s tored at the Hayes Gulch Compressor station in a staging area. Hayes Gulch Compressor Station can be found on the Tab 2-Vicinity Map 9.07.04 (1). The Hayes Gulch Compressor Station is located at the end of the proposed "Hayes Jumper Line " located at T7S, R96W, Section 1, NE•;,., This staging area has access to the East and the We st. It is anticipated that all of the pipe will be hauled East of this area over the construction right-of-way to its point of installation. Pipe materials for West of approximately PI 31, Station 176+00.4 will be loaded onto flatbed trailers, access Highway 6&24, travel west to County Road #215 and then North on County Road #215 to either Hay Barn Road or Man Camp road and Parachult: Creek Ga s Plant. This area will be used for staging materials and equipment to that will then be hauled East or West of these areas over the construction right-of-way to its point of installation. We are anticipating the following traffic: Hayes Gulch Staging Area: Personal vehicle trips per day-70 Hayes Gulch Staging Area: Truck trips per day-12 All of these trips access CDOT Highway 6&24. Man Camp Road Staging Area: Personal vehicle trip s per day-70 Man Camp Road Staging Area: Truck trips per day-12 All of these trips access Garfield County Road #215 Pipe line construction company employees will dri ve their personal vehicles to the staging area and will then be transported down the right-of-way to the pipeline installation location . Each piece of heavy equipment will be ha uled to the staging area and will be driven to the installation location over the pipeline right-of-way . Please contact me with any questions . Page l of2 ~er~, ~~ Philip B. Vaughan President PVCMI Page 2 of2 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 17-Staging Areas 9.07.04 (16). There are two primary staging areas for this project: 1. Hayes Gulch Compressor Station 2. Man Camp Road/Parachute Creek Gas Plant The pipe materials are stored at the Hayes Gulch Compressor station in a staging area. Hayes Gulch Compressor Station can be found on the Tab 2-Vicinity Map 9.07.04 (1). The Hayes Gulch Compressor Station is located at the end of the proposed "Hayes Jumper Line" located at T7S, R96W, Section 1, NEY.. This staging area has access to the East and the West. It is anticipated that all of the pipe will be hauled East of this area over the construction right-of-way to its point of installation. Pipe materials for West of approximately PI 31, Station 176+00.4 will be loaded onto flatbed trailers, access Highway 6&24, travel west to County Road #215 and then North on County Road #215 to Man Camp road and Parachute Creek Gas Plant. This area will be used for staging materials and equipment to that will then be hauled East of this area over the construction right-of-way to its point of installation. Please contact me with any questions. Sincerely, ~~~ Philip B. Vaughan President PVCMI Page 1 of 1 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 19-Garfield County Assessor's Maps 9.07.05 (2). Please find attached the following Garfield County Assessor Maps that start from the Beginning of Pipeline at the Parachute Creek Gas Plant and extends to the End of Pipeline at the Cottonwood Compressor Station jumper. 1. Map 2171 2. Map2409 3. Map 2409-01 S Yz 4. Map 2409-122 5. Map2407 6. Map2173 These maps are provided as per the Garfield County development code. A clearer representation of the alignn1ent and property owners can be found in Submittal Item Tab 2-Vicinity Map 9.07.04 (!). These alignment sheets have all of assessor parcel number for the property that the pipeline will be constructed through and the adjacent parcels. Please contact me with any questions. Sincerely, ~~ President PVCMI Page 1 of I ---· ·-·-· ----. --·1 ) t-a 20 - I r ~ @) I-® .QQund~ I-' II 'f a 3 1 at l EnCa na Oil & Gas, Inc . @ .I .. ii-8 a a 2 9 ~etit Land C~ IUD ) ' ILBV. 10 I-Teee x. I I A I I A I A e v 11 v Produbti~n ·R~'" ' Wi ll iams @ _J @) .r ...a.. r I- 32 Q .. Pucklett La nd Co . 11 arcel Number Uae d Ia _ Adj oining 240 9 0 1800 5 a 22 11 3 2 rr27 -io+-• Mobil e Oil Corp. @iJ1 + l ' 13 American Soda, LLP APPROVED------:--- c:ouimr A3SISSOR f(-3 24~ 25 NAVAL 0 I L a S H A L E RES EI 2171 T.6S . -R. 96W . . ' 0 ff r 7 s. T. 8 S. ·' l/71-J,,-()()-006 B.<-"- ~ . ~· '8 ii----.. ,, ,T , " 8.L" i i , ~ @ @ " ,T ,T 2 """"""''"'"'"" 1n-JJ2-00-0r6 "'" i i i i i "'" > " > MOUNC > C<UAH.W " > " -,, @) " ,T ,+ B.LU_ •T ' \ @ 28 ,, Adjoining 2447 2409 T. 7 S.-R. 96 W. w.c. '" 0 ., N 2409-111-00-153 Adjoining 2409 2409-122-00-009 APPROVEO: ------------- T. 16-BHFZ 16-6(T} I l GRAND VIEW INDUSTRIAL CENTER PARACHUTE 2409-01 s 7 S. -R. 96 W. SEC. 1/2 1 S. 1/2 N ... 0 __, .. Paracbule ~ I @ Adjolnl..ag 2409-01 @ PARACHUTE 2409-122 T.7S.-R.961J. SEC. 12 N.W.1/4 ~ ~ I . ;t " .t - " • " . \. \_ b ! ~ • • " • I . ' I: ···~-,. . .. -t ' -I ---0 " -'" ,;t I .ldJolninl 21S3 R. 9G 11'.la. t-t Y. . AdJohllnl 2131 . . .. • . . . . • . • • • . -.. ' ' . 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It . . -:. . ~ 0 .... t; .. • \ ~~ .+ .. 11.0.a. I ' - -.--.-. @\ • ~-·,1 ' . ® r,~ ' ' " ·•a v_ @> ""' ... . -~ r " ,,. ... _J -~· "" <@> ~ in'lS-:se --'o;; hOT-o«l-00-llMI ~ 1 as,.•T& .--~~ ~ """' "' ~ . r .. . ~···~ .ff T ,® A~ ... -·, /'" --"''" <§) ® f-o!l-tlG--Wl . . . I / T ' . 2173 1 @>!)-- _..,, • r T -... 1MI. 11.t.to Ud ... ,.... ,_I lhlm-VM4 lo J111L_ I I ==' ---T.6S. -R.95lf. !J ~ • I ---·· ~ A. SUlllAl:lp. " --..oo-1n J>anolll,'falboll-.... PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 20-Listing of Adjacent Property Owners adjacent to or within 200 feet of the proposed right-of-way 9.07.05 (2). The following i s a list of landowne rs adjacent to or within 200' of the proposed right-of- way for the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Priva te landowners are identified by Assessor's Parcel Number and public lands are li sted by address. This informat ion is accurate as of 4119106. Garfield County planning s taff has made a determination that only surface owners are to be identified and notified regarding the propose d right-of-way . 1. Parcel #2171-332-00-019 Williams Production RMT Co. c/o Logan & Firmine 3615 S Huron St, Ste 200 Englewood, CO 80110 2. Parcel #2171-331-00-020 EnCana Oil & Gas (USA), Inc. c/o Logan & Firmine Inc. 333 W Hampden Ave Ste 740 Englewood, CO 80110-233 7 3. Parcel #2409-022-00-148 American Soda, LLP c/o Solvay Chemicals Attn. Steve Kovar P.O. Box 27328 Houston, TX 77227-7328 Page 1 of 3 4. Parcel #2409-212-00-952 Bureau of Land Management P.O. Box 1009 Glenwood Springs, CO 81602 5. Parcel #2409-014-00-011 Williams Production RMT Company c/o Logan & Firmine 3615 S Huron St, Ste 200 Englewood, CO 80110 6. Parcel #2409-013-00-001 Exxon Mobil Corporation Attn: Exxon Co . U.S.A. PO Box 53 Houston, TX 77001-0053 7. Parcel #2407-062-00-007 Mobil Oil Corp. Tax Dept. P.O. Box 53 Houston, TX 77001 8 . Parcel #2407-063-00-141 Public Service Company of Colorado Attn: Property & Local Taxes 1225 l 71h St Ste 400 Denver, CO 80202 -5534 9. Parcel #2407-061-00-139 Exxon Mobil Corporation Attn: Exxon Co. U.S.A. PO Box 53 Houston, TX 77001-0053 Page 2of3 10. Parcel #2173-331-00-007 Mobil Oil Corp Attn: Tax Dept. P.O. Box 53 Houston, TX 77001 11. Parcel #2173-352-00-016 Puckett Land Company 60% & Tosco Corporation 40% 5460 S Quebec St Ste 250 Greenwood Vig, CO 80111-1917 12. Garfield County Road #215 c/o Garfield County Road & Bridge P.O. Box 426 Rifle, CO 81650 13. US Highway 6&24/Interstate 70 Right-of-Way c/o Colorado Department of Transportation 4201 E. Arkansas Avenue Denver, CO 80222 Please contact me with any questions. Sincerely, ~~~~ President PVCMl Page 3 of3 April 20, 2006 Mr. Mark Bean Director Garfield County Building and Planning Department 108 s•h Street 4•h Floor ' Glenwood Springs, CO 81601 Dear Mr. Bean, Wi/Jiitfl's. ~ £)(Pl.ORATION >< PRODUGJION Willionlb ProJucrion RMT Comp~ny 'l~Wt:r 3. Si.1iri:: 1000 1515 Ar.i~S.rttt: O<nvi:t, CO 80202 30)/572·3?00 11tain 30>/629-8281 fax · By this letter Bargath, Inc. authorizes PVCMI-Land Planning Division to represent us in any and all matters related to the Development Plan Review for Right-of-Way application for the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. This includes the preparation and submission of documents associated with the land use application and representation of this application before the applicable appointed and elected boards. Sincerely, ~~-P.-- ~ph P."sarrett Assistant Secretary Bargath, Inc. f,fYI .... . Corporate Data Sheet Report WiUiams Production RMT Company JosephP. Barrett TomE.B!aek Suzaime H. Costiu Craig L. Rainey Patti E. Rives Deborah Viehdorfer Securities Equity Common Stock Oate First Authorized: 5/4/2001 Date First lsaued: 51412001 Authorl%ed Capital: Exchange l.lstlng: Transfer Agent: CUSIP: Symbol: Comment: current Owner(s) William< :Production Holdings LLC Boneflclal ownership: Value of Consideration: Conslde!'lltlon: Comments: Assistant Secretary ,...__ Assistant Secretary Assistllnt Secretaty Assistaw: Secretary Assisnmt Secretary Assistant Secretary Certificate No. 3 8/.2/2001 8(212001. 8/2/2001 8/212001 1112112002 11121(2002 8/2/2001 8/2/2001 812/2001 8/2(2001 8f2/2001 8/212001 Date Cancelled: Par Value: # Authorlxed: 1,000 # Outstanding! 1,000 #Issued: 1,000 #in Treasury; #Cancelled: % Ownership #Units . 100% 1,000.00 Former Owner(s) Certificate No. % OWnenihlp #Units The Williams Companies, Inc, Beneflclal Ownership: Value of Consideration: Consideration: Comments: Direct Subsidiaries Bargath Inc. Barrett 1997 Trust Bnuett Fuels Col}loration $1,000.00 Barrett Rei;onrces Inte!1!tltiona1 Corporation 2 100% 1,000.00 . 8/2/2001 Registered in %Ownership Colorado 100.000 % Deis ware 1.000 % Delaware 100.000 % Delaware 100.000% As of 2/6/2003 8/1/2002 8/1/2002 11/2112002 &/l/2002 8/1/2002 8/1/2002 ~P\9JM,¥:#ad 7130/2002 7/3012002 Units Held 1,000 100 1.000 Corporate Pata Sheet Report Williams Production RMT Co~pany Bison Royalty LLC Pie6ance Production Holdings LLC Plains Petroleum Gathtring Company J.llll.ison Gas Company, LLC Rulison Production Company LLC Direct Owners Delawaro Delaware Delaware Colorado Delaware 10().000 % 50.000 % 100.000 % 100.000 % 100.000% As of 2/6/2003 10,000 ~egistered In %Ownership Units Held Williams Production Holdings I.LC Registrations Delaware 100,000 % Colorado Delawa1e Kansas Louisiana Montana New Mexico North Dakota Oklahoillll Texas Utah Charter No. Ta)( ID No. Date End Date Duration Qualification 7/16/2001 Perpetual Agel)t: The Coiporation Company Commel)ts: Re~ources Acquisition Coip. lJll4)ified 7/16/2001. Qualitication WllS amended in 1he name ofWilliams Production:RMT Company on 8/14/2001. Incoiporation S/4/2001 Agent: The Corporation Trost Company Comments: Qualification 7/18/2001 Agent: The Colporat!on Company, Inc. Comments: Qualification 8/13/2001 Agent: C T Cozpoxation System comments: Qualification S/29/2001 Agent: CT Coqioratlon System Comments: Qualification 1211112001 Agent: CT Cotporation System Comments: Qualification 81112002 Agent: CT Co1poration System Comments: Qualification S/17/2001 Agent: Th• Colporation Company Comments: Qualification 8/13/2001 Agent: C T Cotporation System Comments: Qualification 8/1512001 WlLLlRM!::i t-'l'((JD RMI N0.791 P.5/5 .. Corporate Data Sheet Report f>.s. of 2/612003 Williams Production RMT Company Agent: C T Corporation System Comments: Wyoming Qualification 7/23/2001 Perpetual Agent; CT Coiporation System Comments: Resources Acquisition Corp. was qualified on 7/23/2001. Qualification was amended in the name of Williams Prodnction RMT Company on 8/14/2001. History 12/2812001 Merged · Merger On February 28, 2001 Plains PeU'Oleum Company, a Delaware cmpomtion, Plains Petroleum Operating Company, a Delaware co oralio mer ed with and into Barrett Re8ources Co ·on. 121200 l Other Name Name changed ft"om Resources Acquisition Corp. to Williams Production RMT Company ~/212001 Merged Merger Barren Resources Corporation merged with and into Resources Acquistion Corp. nnder the name of Williams Prodnction RMT Company. ,. Ptige 4 of4 ·' .. Corporate Data Sheet Report Bargath Inc. ·Incorporation: Status: Entity Type: Colorado (6/30/1986) Current Coxporation < 84-1032091 llV• f ::71CJ As of 1/17/2005 Phone#: Fax#: Internal#: Federal ID #; Corp.orate Comment: This entity cannot bG dissolved due to a restriction in the Williama Production RMT Company Credit Agreement with Lehman. TaxYear End: Employees: No Fiscal Year End: Annual Meeting Date: Canadian Entity-Federal False Canadian Entity-Provincial . False Primary Address One Williams Center Tul.ga, Oklahoma 74172 (United States) Bylaws Information Purpose of Business: Location of Minute Books: Location of Seal: Directors Currently Authorized: Minimum: Maximum: Quorum: Classes: Ralph A Hill Steven J. Malcolm Officers Ralph A Hill Neal A, Buck Bryan K Guderian Mark W. Husband Joseph N. Jaggers III Travis N. Campbell Brian K. Shore ~Joseph P. Barrett TomE. Black Landy L. Fullmer Craig L Rainey Title Director Director Title Senior Vioo President Vice President Vice President Vice President Vice President Treasurer Secretary Assistant Secretary ~ Assistant Secretary Controller & Aasistant Treasurer Assistant Secretary effective 8/i/2001 8/2/2001 Effective 8/2/2001 8/2/2001 8/212001 8/2/2001 8/2/2001 11/20/2003 11/21/2002 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/212661 Patti E: RI~ve=s-------A*S""Sl;.,,·smta1n1rt-<:Si,.,cc"'"1"'etmai-vy------Af'r/9ffil First Elected Last Elected 8/2/2001 8/2/2001 8/2/2001 8/2/2001 First Elected Last Elected 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 11/20/2003 11/20/2003 11/2112002 11121/2002 81212001 8/2/2001 8/2/200! 8/2/2001 8/2/2001 8/2/2001 812/2001 8/2/2001 812>'2661 8f2/WO' 1 lVV • .. ;::)t~J. C.t'.Jt:J.J 0• 'f(Hl'I J.li.l.LL.lt-t'~ t1"<U1J Kl'J I . ' Corporate Data Sheet Report Bargath Inc. Deborah Viehdorfer Assistant Secretary Direct Subsidiaries Fort Union GOil Gathering, L.L.C. Direct Owners Williams Production RMT Company Registrations Registered In Delaware Registered In N0.790 P.3/3 As of 1/17/2005 . 8/2/2001 8/2/2001 8/2/2001 %Ownership Units Held 10.000 % % Ownership Units Held 100.000 % 1,000 Charter No. Tax ID No. Date f;nd Date Duration Colorado Inoorporation 6/30/1986 Agent: The Corporation Company Okll!homa Qualification FBOOS67130 51611996 Agent: The Corporation Company Utah Qualification 5/6/1996 Agent: CT Corporation System Wyoming Qualification #553893 12/12/2000 Agent: C T Corporation System Historv 4/12/1996 Merged Merger Grand Valley Corporation, a Kansas corporation, merged with and into Bargath, Inc. 61911999 Mergod Morger . ConBent of Sole Shareholder, Bargath Inc., approved the Agreement and Plan of Merger with Bargath Jnc, and Alarado (Denver) Company, a Delaware Corporation, wholly owned subsidiaries of Alnrado Corpomtion, a Delaware corpomtion, a wholly owned subsidiary of Barrett. 5/19/2000 Merged Merger Parachute Mountain, lnc., a New Mexico corporation, a wholly owned eubaidiary of Barrett merged with and into Barga th Jnc. 11/5/2004 Merged Merger RlJlison Gas Company, LLC, a Colorado limited liability company, a holding company wholly owned by Williams Production RMT Company, was merged into Bargath, lno. PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 22-Construction Management Plan Please find attached the following documents that comprise the Construction Management Plan for the project: I. Construction Management Plan-D.R. Griffin & Associates, Inc. 2. Addenda to Construction Management plan-PVCMI Please contact me with any questions. Sincerely, ~~~ Philip B. Vaughan President PVCMI Page 1 of 1 CONSTRUCTION MANAGEMENT PLAN 30" COTTONWOOD COMPRESSOR TO PARACHUTE CREEK GAS PLANT GATHERING PIPELINE PROJECT For BARGATH, INC. c/o WILLIAMS PRODUCTION RMT COMPANY PARACHUTE, COLORADO Prepared By D.R. Griffin & Associates, Inc. Rock Springs, Wyoming April 20, 2006 1.0 INTRODUCTION This Construction Management Plan (CMP) was prepared to support Bargath, Inc.'s (Bargath) application to the Garfield County to construct a natural gas pipeline gathering system consisting of 7.9 miles of new 30-inch-diameter pipeline, 0.6 miles of new 12-inch-diameter pipeline and ancillary facilities in Garfield County, Colorado. Bargath is a gathering pipeline operating company affiliated with Williams Production RMT Company. The proposed gathering system will connect the outlets of three existing field compressor stations to the inlet of a proposed new gas processing plant (Parachute Creek Gas Plant Ill) and the inlets of two existing gas processing plants (Parachute Creek Gas Plant I and II). Supplemental field taps and other compressor station outlet connection taps will also be installed along the gathering system pipeline. Pipeline construction will primarily consist of typical trench and bury installation methods. At special road, irrigation ditch and other crossings, alternate installation methods including horizontal boring, flumed ditch and other methods will likely be used. Above ground facilities contemplated for the project include pipe riser and valve assemblies for lateral connections, side tap valves, pig launcher/receivers and end tie-in facilities. Line markers and cathodic test lead risers will also be installed at regular intervals along the pipeline routes. Construction Management Plan 30" Gathering Pipeline Bargath, lnc./Williams Production RMT Page I of 14 Job #13089 D.R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 This CMP was prepared to address items listed in the Garfield County Zoning Resolution Section 9.07 Development Plan Review for Pipelines. Subject items addressed in this CMP and accompanying documents include: • Construction schedule • Project survey and pre-construction staking • Project drawings, engineering specifications and standards • Construction phase o Clearing and grading o Trenching o Boring o Pipe installation o Backfilling o Hydrostatic testing o Cleanup and restoration o Residential areas and private property o Livestock issues o Health and safety o Waste disposal and sanitation • List of Figures 2.0 CONSTRUCTION SCHEDULE 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 stait 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: Event Description Contractor solicitation/job showing: A ward pipeline construction contract: Receive start-up quantities of line pipe: Receive start-up quantities of equipment & materials: Receive final agency approvals and permits: Commence pipeline construction: Pipeline construction Construction Management Plan 30" Gathering Pipeline substantial Bargath, lnc./Williams Production RMT completion (facilities Page 2of14 Job #13089 Milestone Date April 18, 2006 May 16, 2006 Already in Storage Yard near ROW June2; 2006 June 2, 2006 June 5, 2006 August 18, 2006 D.R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 ready for operation): Purge, pack and commissioning of pipeline service: August 25, 2006 ROW clean-up, restoration and mitigation work complete: September 5, 2006 Reseeding complete: October 27, 2006 Project close out and completion: November 10, 2006 3.0 PROJECT SURVEY AND PRECONSTRUCTION STAKING Prior to the construction of the proposed project, numerous preconstruction activities will be completed. These activities include, but are not necessarily limited to, land surveying, selection of 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. Preconstruction 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. · 4.0 PROJECT DRAWINGS, ENGINEERING SPECIFICATIONS AND STANDARDS Project drawings 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. Documents to describe and detail the work will be encompassed in the following: • Pipeline Construction Contract Construction Management Plan 30" Gathering Pipeline Bargath, Jnc./Williams Production RMT Page3 ofl4 Job #13089 D.R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 • Information and Notice To Bidders • Attachment A -Specification for Pipeline Construction • Attachment B -Supplemental Specification for Pipeline Construction including Project Description, Scope Of Work And Special Provisions. • Attachment C -Materials Provided by Owner • Attachment D -Contract Price Schedule • Attachment D-1 Contract Price Schedule Description including payment item description and exclusions, basis of payment and method of measurement. 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 Gas and Other Gas by Pipeline: Minimum Federal Safety Standards. Where 49 CFR 192 does not address particular design, construction or operation requirements necessary for the work, the provisions of American Society of Mechanical Engineers ASME Code B31.8 Gas Transmission and Distribution System Piping System will be incorporated into the work. Other applicable codes, regulations and standards will be applied to the work when referenced by the controlling 49 CFR 192 regulation and ASME B31.8 Code and as otherwise determined by the normal and customary standard of practice for this type and nature of work. The provisions of any pennit or license issued by controlling agencies providing a required approval for the project will also be considered a controlling standard for the project. 5.0 CONSTRUCTION PHASE 5.1 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. All brush and other materials that 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. Grading of the construction area will be performed in order to create a suitable work surface for construction vehicles and heavy equipment. On flat terrain, the work surface will be leveled across the entire ROW. A bi-level work surface may be necessary in Construction Management Plan 30" Gathering Pipeline Bargath, lnc./Williams Production RMT Page 4of14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 sloped areas. Sidehill 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 Bureau of Land Management (BLM) Cadastral survey comers, reference comers, witness points, U.S. Coastal and Geodetic 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 General Land Office or BLM ROW monuments or references are obliterated during construction, the services of a registered land surveyor will be employed to restore the monuments in accordance with established procedures. Each such survey would be duly recorded with the appropriate county and other jurisdictional agencies. 5.2 Trenching A typical ditch will be excavated 42 to 54 inches wide and approximately 84 inches deep. The depth of the ditch will vary with the conditions encountered. The cover from top of pipe to ground level will generally be 48 inches. In extensive rocky areas, this may be reduced to 30 to 36 inches. In all instances, pipeline burial depths will be in conformance with the requirements of 49 CFR 192 Pipeline Safety Regulations. Occasionally, the ditch will be excavated to depths greater than the general values specified. The ditch will be excavated to pass deeper beneath railroads, roads, streams, drainages, other pipelines, 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 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 Construction Management Plan 30" Gathering Pipeline Bargath, lnc./Williams Production RMT Page 5of14 Job #13089 D.R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 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. S.3 Boring Pipeline crossings at more heavily traveled roads, hard-surface roads, railroads, highways and similar crossings will be made by boring. Boring methods may include horizontal slip or slick boring, horizontal directional drilling or both. The horizontal slip or slick boring method requires the excavation of boring pits at both the entry and exit points of the pipe installation. The depth of the bore pits is foot or more lower than the pipe installation. Pipe is installed on a straight horizontal and vertical grade line between the bore pit faces. The installation is accomplished by auger drilling a circular hole slightly larger than the pipe being installed. The boring proceeds through a pilot pipe which is advanced by mechanical jacking behind the auger head. Excavated material is discharged through the rear of the pilot pipe. After the pilot pipe has been advanced to the end, the carrier pipe is welded to its far end. The pilot pipe and carrier pipe pair is then drawn back through the drill excavated hole. When the carrier pipe is in place, the pilot pipe is cut off to be used again for the next bore crossing. Slip boring refers to "dry" drilling. Slick boring refers to the use of drilling fluids or muds to lubricate the process and provide circulation of bore cuttings from behind the auger and out the back of the pilot pipe. Horizontal directional drilling is typically performed with the entry point at the ground surface. The exit point for this method may or may not have a bore pit but typically does not. Directional drilling does require that small or moderate size mud pits be established at both ends of the drill span. Directional drilling uses a small diameter pilot drill and drill string to establish an initial hole along the bore path. Drilling mud is circulated through the head of the pilot drill and back through the drilled hole. Drilling mud lubricates and cools the drilling head, circulates cuttings out of the hole and provides hydraulic support of the hole until the carrier pipe is installed. After the pilot hole has established, reaming heads are attached to the pilot string and passed through the hole to open it up to a diameter of about 1.5 times, or less, of the carrier pipe diameter. The hole may need to be reamed several times depending upon the size of pipe to be installed and Construction Management Plan 30" Gathering Pipeline Bargath, lnc./Williams Production RMT Page 6of14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 earth conditions present. When the hole has been expanded to the required size, one end of a pull block is hooked to the pilot string and the other end is welded to the carrier pipe. The carrier pipe is then pulled back through the hole to complete the drill span. Within the limits of the carrier pipe material to be installed, the bore path is typically curved in vertical alignment and some times in horizontal alignment as well. For steel pipe, the rate of installed curvature is about I 00 foot of radius for each nominal inch of pipe size (i.e. R = 3,000 feet for 30-inch carrier pipe, R = 800 feet for 8-inch carrier pipe). Drilling methods typically minimize and often avoid the disruption of traffic at road, highway and railroad crossings. Drilling methods used at crossings of excluded and restricted areas, irrigation ditches, flowing streams, wetland areas and similar cultural and environmental sensitive locations can often thoroughly avoid occupation of land crossed by the pipe, the disruption of flowing water, surface disturbance and other like problems. Drilled pipe installations are significantly expensive to install and are accordingly used selectively. Drilling methods using pressurized muds are always subject to "frac-outs" and "blow-outs" (sudden, accidental escape of drilling fluids) which present a minor but typically acceptable construction risk and environmental hazard. Pipe installed by drilled methods is typically of larger wall thickness and strength than the other project line pipe. This is required to address the additional external forces present as result of the installation method and the crossing itself. The carrier pipe in a drilled installation is almost always treated with a sacrificial coating or abrasion resistant overlay. This is present to absorb the wear and tear of the drilling work and to guard the under-laying corrosion protection coating on the pipe itself. 5.4 Pipe installation Pipe will be shipped directly from the manufacturer by rail and truck to storage sites and then 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 temporarily stored at approved staging 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 Construction Management Plan 30" Gathering Pipeline Bargath, Inc./Williams Production RMT Page 7of14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 fabricated pieces (induction or "hot bends") or trimmed segment-able 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 E, "Welding of Steel in Pipelines" and AP! 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. 5.5 Backfilling 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 preconstruction conditions. Subsoils will be backfilled first, followed by replacement of stockpiled topsoil. Once the 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. Construction Management Plan 30" Gathering Pipeline Bargath, Inc./Williams Production RMT Page 8of14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 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. 5.6 Hydrostatic testing The entire pipeline will be tested in compliance with 49 CFR Part 192 Pipeline Safety Regulations. This will be accomplished through hydrostatic testing. Prior to filling the pipeline for a hydrostatic test, each section of the pipeline will be cleaned by passing reinforced poly pigs through the interior of the line. Incremental segments of the pipeline will then be filled with water, pressurized, and held for the duration of the test. The length of each segment tested will depend on local topography. Typically, the hydrostatic tests of individual segments will be conducted in sequence and the test water will be transferred from one segment to another. Hydrostatic test water intake and discharge will be done in conformance with all applicable local, state, and federal requirements. Performance of these operations shall avoid adverse impacts to aquatic, wildlife, and visual resources. Water for pipeline hydrotesting will be withdrawn from and disposed of into the Williams Production RMT Co. produced water system. The pipeline for this produced water system.· Upon completion of the hydrostatic testing, the pipeline segment will be dried using compressed dry air, pigs, spheres, or other accepted means. Once dried and fully ready for service, including tie-ins to terminal and online facilities, the pipeline will be purged of air and charged with natural gas. Upon obtaining sufficient gas volume and pressure, the line is typically ready for gas gathering service. The event is typically called the moment of"Substantial Completion." 5.7 Cleanup and Restoration Upon completion of backfilling, construction work will commence to clean up, restore, and re-vegetate the ROW. Efforts will have been taken during the prior work to minimize erosion, restore the natural ground contour, account for trench settling, reestablish 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 Construction Management Plan 30" Gathering Pipeline Bargath, lnc./Williams Production RMT Page 9of14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 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 preconstruction 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. 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. Throughout the life of the project, the pipeline ROW will be monitored during routine ground inspections to evaluate the success of erosion control and re-vegetation. Attention during inspections will be given to locating riles, gullies, washouts and observing the condition of vegetation. The purpose of the monitoring will be to identify problem areas so that suitable corrective action can be decided and initiated. 5.8 Residential Areas And Private Property The construction ROW will not be located within 50 feet of a place of residence or similar use. Where residential and private property are encountered, the following practices where reasonable, prudent and beneficial will be implemented: • If the trench is left open overnight within 250 feet of a residence, place of business or similar activity, it will be fenced or barricaded to mitigate safety concerns. • Owners of private roads along the route will be notified 24 hours in advance of planned road crossings. • Private road crossings will be completed within three hours and roads will be restored to pre-construction conditions or better. Construction Management Plan 30" Gathering Pipeline Bargath, lnc./Williams Production RMT Page 10of14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 • Access to and from residences, place of business and similar areas will be maintained at all times unless express authorization to the contrary is obtained for the landowner, lessee or other authorized entity. • Construction activities, except for hydrostatic testing, will only occur between 7 AM and 6 PM, six days a week (Monday through Saturday). • No trench within 250 feet of a residence, place of business or similar area will be left open for more than three days. • If blasting activities are required, matting will be used to prevent damage from flying debris. Landowners, lessees and others will be notified in advance to ensure that all persons, livestock and equipment are out of the danger zone. Where it is determined by a qualified person that there are still identifiable risks in proximity of the work area, blasting will not be used. • In residential and similar areas, topsoil replacement (topsoil import) may be used as alternate to topsoil segregation. 5.9 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 oflivestock. • 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. Replace of the natural barrier is desired Construction Management Plan 30" Gathering Pipeline Bargath, Jnc./Williams Production RMT Page 11 of 14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 upon the completion of construction if practical. Permanent fencing or artificial barriers shall be used if the natural barrier cannot be reasonably restored. 5.10 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. • Excluding hydrostatic testing, nighttime construction will not be permitted. Work shall not commence prior to sunrise and work shall cease at sunset. Work in residential, business and similar areas shall be limited to 7 AM to 6 PM, Monday through Saturday. • 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. • Should a well, spring or water supply facilities be adversely affected by construction, an emergency source of potable water will be provided until mitigation can be completed. Repairs and replacement of affected facilities shall Construction Management Plan 30" Gathering Pipeline Bargath, Inc./Williams Production RMT Page 12of14 Job #13089 D.R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 be undertaken upon completion of pipeline work in the immediate area of the damage. • Dredge or fill material of any amount will not be discharged in or near the proximity of a public water supply intakes or municipal watersheds. • All equipment used in the work shall be properly equipped and maintained to ensure compliance with applicable health, safety and environmental regulations. 5.11 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. • Construction and operating sites will be maintained in a clean and sanitary condition at all times. Collected wastes will be disposed o( 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. A portable toilet will be available for worker use within 7.5 miles of any point along the ROW (i.e. 15 mile spacing). 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. 6.0 List of Figures Construction Management Plan 30" Gathering Pipeline Bargath, Inc./Williams Production RMT Page 13of14 Job #13089 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Drawing Number Description Jl3089-9125 Tvoical ROW Section With Full Width Topsoil Salvage JI 3089-9203 Construction Management Plan 30" Gathering Pipeline Construction Activities Sequence Page 14of14 Job #13089 Bargath, Inc./Williams Production RMT D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 22-Addenda to Construction Management Plan prepared by D.R. Griffin & Associates, Inc. E. Post Construction Operation and Maintenance Bargath, Inc. authorized employees will operate, monitor and maintain the pipeline. F. Environmental Compliance Bargath, Inc. will operate the pipeline in compliance with all local, state and federal laws. G. Soil Conservation, Sedimentation and Erosion Control Plan Please refer to the attached Construction Stormwater Management Plan prepared by Cordilleran Compliance Services, Inc. H. Stream Crossing and Wetland Protection Plan Please refer to the stream crossing details provided by D.R. Griffin & Associates, Inc. in Tab 2-Vicinity Map-9.07.04 (1). Please see Tab 7-Regulatory Permit Requirements 9.07.04 (6) regarding the US Army Corp of Engineers Nationwide Permit 12 for utility activities. I. Reclamation Plan Please see Tab 13-Revegetation Plan-9.07.04 (12) Page 1 of2 J. Fire Prevention & Suppression Please see Tab 15-Emergency Response Plan-9.07.04 (14) and the Construction Management Plan prepared by D.R. Griffin & Associates, Inc. Section 5.10 Health and Safety. K. Hazardous Materials Management & Spill Prevention Please see the Construction Management Plan prepared by D.R. Griffin & Associates, Inc. Section 5.11 Waste Disposal and Sanitation and the attached Construction Stormwater Management Plan prepared by Cordilleran Compliance Services, Inc. in Section G above. The SWMP plan addresses these issues in sections 3 and 4.4. L. Safety and Emergency Response Plan Please see the Construction Management Plan prepared by D.R. Griffin & Associates, Inc. Section 5.10 Health and Safety and Tab 15-Emergency Response Plan-9.07.04 (14) Please contact me with any questions. Sincerely, ~~~<S'" Philip B. Vaughan President PVCMI Page 2 of2 CLEARING LIMIT PERMANENT ROW PERMANENT ROW CLEARING LIMIT NOTES: TOPSOIL • ·~ TRE CH TRENCH SPOIL . . .. " ' . . .. 15'± WORKING LAN 15'± TRAVEL LANE TOPSOIL CLEARING WIDTH ±70' 35' ± SPOIL SIDE 65'± WORKING SIDE 1 oo' CONSTRUCTION ROW NOT TO SCALE 1. SALVAGE TOPSOIL FULL ROW WIDTH AT LOCATIONS AND DEPTHS IDENTIFIED ON THE CONSTRUCTION DRAWINGS OR AS DIRECTED BY THE COMPANY. 2. TOPSOIL SHALL BE STOCKPILED ON BOTH SIDES OF THE ROW (AS SHOWN), ON ONE SIDE OR IN ANY CONFIGURATION APPROVED BY THE ENVIRONMENTAL INSPECTOR. KEEP TOPSOIL PILE CLEAN OF ALL CONSTRUCTION DEBRIS. MAINTAIN SEPARATION BETWEEN TOPSOIL AND SUBSOIL SPOIL PILES. 3. LEAVE GAPS IN TOPSOIL AND SPOIL PILES AT OBVIOUS DRAINAGES. DO NOT PUSH TOPSOIL INTO CREEKS OR WETLAND. DO NOT USE TOPSOIL FOR PADDING. 4. STRIP AND STOCKPILE TOPSOIL FROM FULL ROW WHERE GRADING IS REQUIRED (i.e. FOR A SIDE-HILL CUT, etc.,) TO PRODUCE A STABLE WORK AREA. G:\Stondords\Logos\WILLIAMS5.jpg TYPICAL R.0.W. SECTION WITH FULL WIDTH TOPSOIL SALVAGE REVISIONS ~RIFFIN & ASSOCIATES, INC. o NO. DATE DESCRIPTION 0 3124106 ISSUED FOR PERMIT SCALE: NONE 1414 ELK ST., SUITE 202 ROCK SPRINGS, WY 82901 (307) 362-5028 DWG No. DRG-J13089-9125 DA TE: 03124106 ORF CHK APR RR LGB - PIPELINE CONSTRUCTION SEQUENCE I ! ljt ~~~!'Ji i~! ~t~l \ _,ff;,,/ ~ l1l~ 1 ~ ~ ... I. ,1!!,: ~~ ~ fJ r-1 -+--2 ----+--3 ~--+-4 ----+----5 ---+------6 --------+--7 ---+-------8 ----------+--9 -i 1}•lli h ill>t tit ~ lt' I I ~·-~~~~if!:_-~ j;g_§l;;_ 2Ja . !?: .. ~ ~ .J~_Jt,~;;~ - = 0 -= = = = < ---• S? ----= -= =~,.. f-------------1 11 12 I 13 I 14+15 I 15 17 18 I 19 I 20-________, LEGEND: 1. RIGHT-OF-WAY ACQUISITION AND SURVEY 2. FENCING 3. CLEARING AND GRADING 4. CENTERLINE SURVEY OF DITCH 5. DITCHING (ROCK-FREE) 6. DITCHING (ROCK) 7. PADDING DITCH BOTTOM 8. STRINGING 9. BENDING 10. LINE UP, STRINGER BEAD AND HOT PASS 11 . FILL AND CAP WELD 12. AS-BUILT FOOTAGE 13. X-RAY AND WELD REPAIR 14. COATING FIELD AND FACTORY WELDS 15. INSPECTION (JEEPING) AND REPAIR OF COATING 16. LOWERING IN AND TIE-INS 17. AS-BUILT SURVEY 18. PAD AND BACKFILL 19. TEST AND FINAL TIE-IN 20. REPLACE TOPSOIL AND CLEANUP RIFFIN & ASSOCIATES, INC. 1414 ELK sr., SUITE 202 ROCJ<: SPRINGS. WY 82.901 {30 ?) 302 ·5028 SCALE: JOB No.: DATE: None 13089 04i06106 DWG NO. DRG-J13089-9203 !VAIVJM.L GAS PlPJi1,l!\!E Tl7PlC1L CON.'iTRUC110l\' A.C11V!TIE.<.; ."1'Ef)l!Ei'\'CE5. JfJ" PAH1lClllJJE 10 CO'l1Di''-ilYOOlJ GA 1llERL\'G Pf Pl-"1.ll"i'E RHl.(74 :ru. r:vc ~r 1"1LL1A/IJS 1~ll01Jli(.'l10/\ RJIJ (-0. CONSTRUCTION STORM WATER MANAGEMENT PLAN (STORM WATER DISCHARGE PERMIT #<TBD>) COTTONWOOD COMPRESSOR STATION TO PARACHUTE CREEK GAS PLANT GATHERING LINE GARFIELD COUNTY, COLORADO PREPARED FOR: BARGATH, INC. P.O. Box370 Parachute, Colorado 81635 PREPARED BY: CORDILLERAN COMPLIANCE SERVICES, INC. 826 21\lz Road Grand Junction, Colorado 81505 970.263. 7800 ' CoRDILLERAN April 21, 2006 TABLE OF CONTENTS Section Page INTRODUCTION .......................................................................................................................... I Purpose/Objective ............................................................................................................... 1 Facility Name/Location ....................................................................................................... 2 Owner/Operator Contact Information .................................................................................. 2 Type ofFacility ................................................................................................................... -2 1.0 SITE DESCRIPTION ....................................................................................................... -3 I. I Site Location ................................................................................................................ .3 1.2 Location Size ............................................................................................................... .3 1.3 Site & Area Characteristics .......................................................................................... -3 2.0 CONSTRUCTION SITE CHARACTERISTICS ........................................................... 4 2.1 Site Construction Area Description ............................................................................. .4 2.2 Runoff Characteristics ................................................................................................... 5 2.3 Construction Activities ................................................................................................ .5 2.4 Materials Handling, Loading, and Storage Areas ......................................................... 5 2.5 Adjacent Property Descriptions .................................................................................... 5 3.0 DESCRIPTION OF POTENTIAL POLLUTION SOURCES AND MATERIAL INVENTORY ..................................................................................................................... 6 3.1 Description of Significant Material Storage ................................................................. 6 3.2 Description of Significant Spill, Leaks, Releases ......................................................... 6 3.3 Storm Water Discharge Permit Number ....................................................................... 6 3.4 Potential Pollution Sources ........................................................................................... 6 4.0 STORM WATER MANAGEMENT CONTROLS ........................................................ 8 4.1 Soil Erosion & Sediment Control ................................................................................. 8 4.1.1 Flume Drainage Crossings .................................................................................... 8 4.1.2 Check Dams ........................................................................................................... 9 4.1.3 Straw Bales ............................................................................................................ 9 4.1.4 Rock Protection ...................................................................................................... 9 4.1.5 Rolled Products ...................................................................................................... 9 4.1.6 Vegetative Filters ............................................................................................... 10 4.1.7 Slope Drainage Relief ......................................................................................... 10 4.1.8 Straw Wattles ....................................................................................................... 1 0 4.1.9 Diversion berm/channel ...................................................................................... 10 4.1.10 Catch Basin ....................................................................................................... 10 4.1.11 Gravel Surfacing ................................................................................................ 11 4.1.12 Designated Concrete Wash Areas ..................................................................... .11 4.1.13 Topsoil Replacement.. ........................................................................................ 11 4.1.14 Seeding of Pipeline Corridors ............................................................................ 11 Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan Cordilleran Compliance Services, Inc. Grand Junction, Colorado 4.1.15 Seeding of Other Disturbed Areas .................................................................... 11 4.1.16 Additional BMP References .............................................................................. 12 4.2 Storm Water Management Controls ............................................................................ 12 4.3 SWMP Administrator .................................................................................................. 13 4.4 Other Controls .............................................................................................................. 13 4.4.1 Material Management .......................................................................................... 13 4.4.2 Fuels & Materials Management ........................................................................... 13 4.4.3 Laydown & Staging Areas .................................................................................. .14 4.4.4 Construction Site Housekeeping .......................................................................... 15 5.0 INSPECTION AND MAINTNENANCE PROCEDURES .......................................... 16 5.1 Inspection Log ........................................................................................................... 17 6.0 ALLOW ABLE NON-STORM WATER DISCHARGES ............................................ 17 7.0 FINALSTABILIZATION .............................................................................................. 17 7.1 Final Stabilization of Short-Term Disturbances .......................................................... 17 7.2 Final Stabilization of Long-Term Disturbances .......................................................... 18 8.0 CONSISTENCY WITH OTHER PLANS ..................................................................... 19 9.0 ADDITIONAL REQUIREMENTS FOR FACILITIES SUBJECT TO SARA TITLE III, SECTION 313 ............................................................................................... 19 LIST OF FIGURES Figures D.R. Griffin & Associates 30" Gathering Pipeline Lateral Drawings LIST OF TABLES Table 1 Notification of Outside Parties -Public Safety Officials and Government Agencies 2 Spill Cleanup Contractors ATTACHMENTS Attachment A-Storm Water Management Inspection Log and Inspection Form Attachment B -Typical Storm Water BMP Details Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Stonn Water Management Plan Cordilleran Compliance Services, Inc. Grand Junction, Colorado INTRODUCTION Puroose/Objective Cordilleran Compliance Services, Inc. (Cordilleran) has prepared this Storm Water Management Plan (SWMP) for Bargath, Inc. (Bargath) for construction activities associated with the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line in Garfield County, Colorado. This SWMP has been written to comply with the Colorado Department of Public Health and Environment (CDPHE) General Permit number COR-03000 issued on June 30, 2002 (expiration date: June 30, 2007), and related U.S. Environmental Protection Agency (USEPA) National Pollutant Discharge Elimination System (NPDES) storm water regulations. The goal of this plan is to improve water quality by reducing pollutants in storm water discharges. Construction activities potentially produce many different kinds of pollutants that may adversely impact storm water. 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. The main pollutant of concern at construction sites is sediment, which can become entrained in storm water runoff following grading activities that remove protective vegetative cover. When the storm water runoff carrying these sediments reaches a lake or stream and slows down, the suspended sediments are deposited, and can choke the river channel or cover areas where fish spawn and aquatic plants grow. The particles also cloud waters causing aquatic respiration problems resulting in the death of fish and plants in these systems. Construction may also involve the use of toxic or hazardous materials such as petroleum products, fertilizers, pesticides and herbicides, and building materials such as sealants and concrete, and other chemicals that can be harmful to humans and aquatic life. This plan covers the proposed pipeline site and the associated right-of-way. Cordilleran has prepared this plan for Bargath in order to satisfy the storm water management requirements for a new construction site. This SWMP for the Parachute Creek pipeline will be maintained at the Bargath Parachute Office and at the Bargath regional office in Denver, Colorado until the storm water discharge permit expires or is inactivated by Bargath. This SWMP is intended to be a dynamic document that is updated as needed throughout the duration of the construction project. Document updates will be performed to include the following: I. Inclusion of newly proposed activities resulting in ground disturbance; 2. Revision of existing best management practices (BMPs) as needed to address sediment control, and; Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan Cordilleran Compliance Services, Inc. Grand Junction, Colorado 3. Removal of BMPs and reduction in monitoring frequency for stabilized or revegetated areas. Facilitv Name/Location The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line project will be located in Garfield County, Colorado near the town of Parachute. For additional information, please refer to Section I J and the pipeline alignment figures included in this document. Owner/Operator Contact Information Bargath, Inc. PO Box 370 Parachute, Colorado 81635 Facility Contact/SWMP Administrator: Mr. Michael Gardner Work Phone: (970) 263-2714 Cell Phone: (970) 640-1855 Fax Number: (970) 285-0121 Emergency Contact: Mr. Dave Cesark Work Phone: (970) 285-9377 Cell Phone: (970) 216-9181 Fax Number: (970) 285-9573 Type of Facility The Parachute Creek pipeline will transport natural gas supplied by local production fields to the Parachute Creek Gas Plant. As a construction site disrupting more than 5 acres of land, the primary concern is that of sediments becoming entrained in storm water and flowing offsite following grading and clearing operations. Additionally, any chemicals stored or used onsite during construction have the potential to adversely impact storm water and migrate offsite without proper management in the event of a spill or release. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Stonn Water Management Plan 2 Cordilleran Compliance Services, Inc. Grand Junction, Colorado 1.0 SITE DESCRIPTION I. I Site Location The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line project travel through Sections 33, 34, Township 6 North, Range 96 West, Sections I, 2, 3, Township 7 North, Range 96 West, Sections 5, 6, Township 7 North, Range 95 West, Sections 32, 33, 34, Township 6 North, Range 95 West. Garfield County, Colorado. Refer to the pipeline alignment figures included with this document. 1.2 Location Size The construction disturbance associated with the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line will consist of 7.9 miles of 30" diameter pipeline and 0.6 miles of 12.75" diameter pipeline with widths up to 100 feet, for an overall area of approximately 98 acres. The width of disturbance in specific areas will vary depending on construction needs and other factors. 1.3 Site & Area Characteristics The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line site is located in an arid region on the western slope of Colorado. According to information from the National Oceanic and Atmospheric Administration (NOAA) Western Regional Climate Center, the area receives an average of between 10 and 15 inches of precipitation annually. The maximum estimated precipitation in a 24 hour period, for a 25 year storm event is 21 tenths of an inch (2.1 inches). According to information from the USDA Natural Resources Conservation Service, soils in the vicinity of the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line belong to the Arvada-Torrifluvents-Heldt complex. These soils are deep, well drained to somewhat poorly drained, nearly level to gently sloping soils, on benches, terraces, alluvial fans, and flood plains. Runoff is very rapid and the hazard of water erosion is very high in sloping areas. Parachute Creek, a perennial stream, Cottonwood Creek, an ephemeral stream, and the Colorado River, are located in proximity to the pipeline construction area. There are also several irrigation ditches and unnamed drainage courses in the vicinity of the planned pipeline location. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 3 Cordi/leran Compliance Services, Inc. Grand Junction, Colorado 2.0 CONSTRUCTION SITE CHARACTERISTICS 2.1 Site Construction Area Description This construction project is located within Bargath operations (see the pipeline alignment figures included with this document). The vast majority of ground disturbance will be due to pipeline construction. Pipeline corridors are linear features having widths up to 75 feet and lengths of less than a mile to more than several miles. The width of disturbance may vary depending on construction needs and other factors. After a pipeline origin, destination, and preferred route have been identified, the following construction sequence is generally followed: I. Surveys: topographic, vegetation, wildlife and archeology, as necessary. 2. Vegetation clearing (as necessary). If conducted, cleared vegetation will be placed in a windrow at the edge of the work area, removed from the construction site, or burned depending on landowner requirements. 3. Topsoil stripping. Topsoil is removed from the work area and stockpiled in a windrow near the edge of the work area. 4. General grading. For pipeline segments that occur in relatively rough terrain general grading will be conducted to create a safe and workable ground surface. This is generally done to form a relatively level work surface on steep cross slopes and to reduce slopes in undulating terrain (arroyo and wash crossings). 5. 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 depth and width will vary on the number of pipes to be installed and the pipe diameter. Generally, a 4-foot deep trench will be excavated. Trench spoils are cast into a windrow. 6. Pipe welding and placement. The pipe pieces are layed beside the trench and welded. Long segments of welded pipe are placed within the trench by sideboom dozers. 7. Pipe bedding. Trench spoils are 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. 8. Trench backfill. Bulldozers move soil from the trench spoils windrow to backfill the trench. 9. General grading. If general grading was conducted to facilitate pipeline construction these materials will be replaced and graded to recreate the pre-construction topography. I 0. Topsoil placement. Topsoil will be moved from the window and redistributed across the surface of the disturbed area. 11. Vegetative material replacement/removal. Based upon landowner requirements, stripped vegetation may be hauled off-site or burned in the work area. At locations where it is required, vegetative material that was stripped and saved prior to topsoil removal will be distributed across the disturbed area. Depending on the type of vegetation and method of seeding this may occur before or after the disturbed area is seeded. 12. Seeding. The reclaimed disturbed area is seeded. The seed mix will vary depending on location and surface ownership and will generally match the surrounding vegetation. 13. Application of erosion stabilization. Depending on terrain (e.g. steep slopes and drainage crossings) additional measures may be applied to provide for erosional stability of the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 4 Cordilleran Compliance Services, Inc. Grand Junction, Colorado reclaimed area. Generally rolled product will be placed on steep slopes and rolled product and/or rock will be placed at drainage crossings. Final stabilization is considered complete when 70 percent of the pre-construction ground cover has been re-established. 2.2 Runoff Characteristics Runoff characteristics are based on site topography, soil type, and soil/vegetative cover. Surface elevation ranges from approximately 5, I 00 to 5,500 feet. Surface soils range from sands, silts, and clays to exposed bedrock. Slopes range from I to over I 00 percent. The path of this pipeline is located on valley floors and hillsides. Runoff coefficients are expected to range from 0.1 to 0.4. 2.3 Construction Activities For new disturbances in this construction project, BMPs will be installed prior to, during, and immediately following construction as practicable with consideration given to construction staging, safety, access, and ground conditions (e.g. frozen ground) 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. Construction is anticipated to begin on June 1, 2006 and be complete by mid-August, 2006. 2.4 Materials Handling, Loading, and Storage Areas Fuels, pesticides or herbicides, paints or solvents, and other industrial materials associated with construction activities must be handled, loaded, and stored so as to prevent storm water impacts from occurring. All liquids shall be stored in appropriate containers and properly protected from adverse weather or storm events. By following good housekeeping and best management practices (BMPs), discharges of impacted storm water can be averted. Industrial wastewater shall be properly disposed and not allowed to be discharged to storm water conveyances. 2.5 Adjacent Property Descriptions Surrounding land usage is primarily for oil and gas exploration and production and to a lesser extent for seasonal livestock grazing, farming and irrigation pasture. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Stonn Water Management Plan 5 Cordi/leran Compliance Services, Inc. Grand Junction, Colorado 3.0 DESCRIPTION OF POTENTIAL POLLUTION SOURCES AND MATERIAL INVENTORY 3. I Description of Significant Material Storage During construction chemical storage will be minimal. Stockpiles of excavated soils should be bermed and covered with sheet plastic or tarps to prevent storm water from transporting sediments into nearby dry washes. Any fuel storage tanks for trucks and heavy construction equipment refueling should be contained in an earthen berm capable of containing the entire volume of the largest tank. 3.2 Description of Significant Spills. Leaks. Releases The construction area of the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line consists largely of undeveloped areas. No significant spills, leaks, or releases are known to have occurred on the properties and areas crossed by the planned pipeline. 3.3 Storm Water Discharge Permit Number An active CDPHE storm water discharge permit for construction activities with permit number <insert permit number upon receipt> exists for the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. 3.4 Potential Pollution Sources Potential pollution sources associated with construction of pipelines 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; • Trash and debris from clearing activities, construction materials, and workers; and • Fluids used for hydrostatic testing of the completed pipeline (if conducted, this is generally water but may be nitrogen or other gas). The most common source of pollution from construction sites is sediment, which can be carried away from the work site with storm water runoff and impact the water quality of receiving streams. 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. These products will be stored and containers labeled as required by regulations. Debris from material staging areas, residue from equipment cleaning and maintenance, and solid waste generated from land clearing operations and human activity (trees, brush, paper, trash, etc.) Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 6 Cordi/leran Compliance Services, Inc. Grand Junction, Colorado present other potential pollution sources within the construction site. Other materials on-site will include compressed gasses used in welding and chemicals used and stored on-site for use in pipeline installation. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 7 Cordilleran Compliance Services, Inc_ Grand Junction, Colorado 4.0 STORM WATER MANAGEMENT CONTROLS 4.1 Soil Erosion and Sediment Controls The objective of erosion and sediment controls is to minimize the release of sediments to 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 at active construction sites to minimize possible sediment impacts to storm water runoff. The proposed erosion control features include: • Placement of salvaged topsoil over disturbed surfaced after reclamation grading has been completed; • Construction of flumes at drainage crossings; • Placement of rolled products as needed, depending on site-specific conditions; • Placement of silt fence, straw wattles, or straw bales as needed below the top of disturbed slopes (depending on slope gradient, length, and proximity to sensitive areas); • Placement of straw bale or rock check dams as needed in areas of concentrated flow; • Catch basins to retain runoff construction areas; • Wash pits at sites where concrete will be used; and • Permanent seeding of reclaimed pipeline corridors and areas not needed for long-term work access. The types and locations of structural BMPs for each disturbed area will be determined as development progresses and construction plans are prepared. BMPs generally function to control sediment through diverting runon water away from disturbed areas, to control runoff water generated from disturbed areas, or to control erosion by stabilizing the soil surface. • Runon controls are those features that serve to collect and/or direct runon water away from disturbed areas. Runon controls typically include diversion berms, channels, and flumes. • Runoff controls are those features that serve to collect and/or direct runoff water that comes from disturbed areas. These features serve to collect and/or retain runoff water and remove sediment. Runoff controls may include straw bales, check dams, silt fence, straw wattles, diversion berm/channels, catch basins, and slope drains. • Erosion controls are those features that serve to retain soil in-place. Erosion controls may include gravel surfacing, rolled products, rock protection, and vegetation. 4.1.1 Flume drainage crossings Flume drainage crossings will be used where the pipeline construction crosses drainage of sufficient size, or irrigation ditches. At these locations, a culvert will be installed such that the inlet and outlet will extend at least 3 feet beyond the limit of fill. Fill material will then be placed over the culvert to create a work surface with a grade that is allows vehicle traffic and provides for safety. A typical flume layout is given in Attachment B. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 8 Cordilleran Compliance Services, Inc. Grand Junction, Colorado 4.1.2 Check dams Check dams should be installed in areas of concentrated flow. Check dams may be constructed of straw wattles, straw bales, or rock. Straw wattles may be used in areas where the volume of concentrated flow is expected to be minor. Straw bale check dams may be used in areas where the volume of concentrated flow is expected to be moderate. Rock check dams should be used in areas where the volume of concentrated flow is expected to be high or in areas where maintenance of straw wattles or bales is expected to be high. Typical check dam installation details are given in Attachment B. 4.1.3 Straw bales (barriers or check dams) Straw bale check dams, at a minimum will be installed in areas of concentrated flow. Straw bale check dams should also be installed at suitable locations along new access roads. Typical straw bale installation details are given in Attachment B. 4.1.4 Rock protection Rock protection may be installed in areas of concentrated flow. Rock protection may be necessary at the outlet of culverts or other drainage structures. Channels may be rock lined in areas where slopes are very steep or high water velocity is expected. A detail for typical rock protection at a culvert outlet is given in Attachment B. 4.1.5 Rolled products Rolled products cover a broad variety of manufactured products that are supplied in rolled packages that serve to provide a protective layer for underlying soil. Rolled products may include straw, aspen fibers, coconut fibers, or synthetic fibers. They may be single or double- netted or may have no external netting. Generally, the service life, durability, and quality of product relate to their weight and cost. A single net, straw mat may suffice for a moderate slope where successful revegetation is expected within 6 months or less; a double net coconut fiber mat may be needed for steep slopes where revegetation is expected within 24 months or less; and a synthetic fiber turn reinforcement mat (TRM) may be needed for channel linings. These products are available from a variety of manufacturers including North American Green, American Excelsior, Enviroscape EMC, Contech Construction Products and others. Manufacturer's guidance and local experience should be considered before selecting a rolled product to use in a specific application. Rolled products should be installed according to the manufacturer's recommendations. Generally, the use of rolled products should be considered for post-construction stabilization of pipeline corridor areas where slopes are steeper than 2h:lv (horizontal:vertical). At construction sites rolled products will be used for post-construction stabilization of all slopes that are 2h:lv, or steeper. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 9 Cordilleran Compliance Services, Inc. Grand Junction, Colorado 4.1.6 Vegetative filters Vegetative filters may be either standing vegetation in undisturbed areas or vegetative material salvaged from clearing operations. When using vegetative filters, consideration should be given to the area of disturbance that will contribute flow, distance to surface drainage, density of vegetation, and effectiveness of vegetation in slowing runoff and removing sediment. 4.1.7 Slope drainage relief Rolling dips or water bars may be used to provide drainage of water from the pipeline corridor as needed to drain low areas or to reduce the amount of water flowing on the pipeline corridor. Slope drains may also be used to convey collected runoff water down a disturbed slope. Depending on the location and type of drainage relief installed, additional sediment control features may be needed such as lining with rolled product or placement of erosion protection at the outlet. 4. 1.8 Straw wattles Straw wattles (also called straw rolls, straw logs, or fiber rolls) are intended to capture and keep sediment on the slopes. Wattles are useful to temporarily stabilize slopes by reducing soil creep and sheet and rill erosion until permanent vegetation can be established. Wattles will last an average of one to two years. The slope may need 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 IO 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 or wooden stakes need to be driven through the roll and soil. There should only be I to 2 inches of stake exposed above the roll. The stakes should be installed every 4 feet. Typical straw wattle installation details are given in Attachment B. 4.1.9 Diversion berm/channel Diversion berms, channels, or combination structures may be used to divert runon away from a disturbed area, to collect runoff, or to direct toward a central BMP (catch basin, for example). Typical berm and berm/channel details are given in Attachment B. 4.1.10 Catch basin Catch basins may be low-lying areas or areas contained within earthen berms. Catch basins operate by retaining a volume of water for a sufficient length of time so that sediment will fall out of suspension and be contained within the basin. Catch basins should be placed to collect runoff water, sized to retain an appropriate volume of water, and typically will have provision for controlled release of overtopping flows. Typical catch basin details are given in Attachment B. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 10 Cordilleran Compliance Services, Inc. Grand Junction, Colorado 4.1.11 Gravel surfacing Gravel surfacing may be used to cover soil in areas of high traffic such as roads and construction areas. Gravel surfacing forms a layer that protects soil from wind and water erosion and prevents vehicle tracking. Gravel surfacing may be lost or displaced by vehicular traffic. Gravel surfaces should be inspected to identify the need for placement of additional gravel. 4.1.12 Designated concrete wash areas At construction sites where concrete will be used in construction wash areas will be designated. All concrete trucks will be required to use the designated wash area. The wash area will include provision for retaining all wash water. The wash and water retention areas will be located such that runon is diverted and all runoff is retained with the wash and water retention area. 4.1.13 Topsoil Replacement Salvaged topsoil will be replaced over disturbed areas after completion of reclamation grading (see Section 2.1 ). Topsoil may not be found at depths which are salvageable in all areas; however topsoil should be salvaged, stockpiled, and used as practicable. Topsoil placement greatly improves the vegetative growth (relative to subsoil) and also serves as a BMP. Salvaged topsoil contains organic matter and vegetative debris that serves as protective mulch. Vegetative debris aids in reducing raindrop impact and serves to buffer temperatures at the soil surface. 4.1.14 Seeding of Pipeline Corridors After completion of construction within a associated staging areas) will be reseeded. available seeding season. pipeline corridor the disturbed area (including Seed mix application will be done in the next The revegetation seed mix should include annual, cereal crop seeds or sterile grass species (e.g. regreen) to help establish vegetative cover. The permanent seed mix, rate, application method, and supplemental materials will be determined by Bargath, the landowner, or land management agency as appropriate for the land ownership and use. In general, the revegetation seed mix will contain seeds of plants that are found in the surrounding areas. Reclaimed and seeded areas will be inspected to confirm vegetative growth and assess the need for re-seeding and/or weed control. Vegetative success is achieved when new growth reaches 70 percent of the pre- construction vegetative cover. 4.1.15 Seeding of other disturbed areas After completion of construction areas not needed for access or work staging should be seeded. In general, this will include all areas not used for facilities, materials storage, or access. The seed mix, rate, application method, and supplemental materials will be selected by Bargath, the land owner, or the land management agency as appropriate for the land ownership and use. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 11 C.~ordi/leran Compliance Services, Inc. Grand Junction, Colorado Reclaimed and seeded areas will be inspected to confirm vegetative growth and assess the need for re-seeding and/or weed control. Vegetative success is achieved when new growth reaches 70 percent of the pre-construction vegetative cover. 4.1.16 Additional BMP references The structural and non-structural BMPs listed above (and the additional BMP information provided in Attachment B) are intended to address the storm water control structure needs of this pipeline construction project. However, there may be situations where a BMP is needed but not included above, or project personnel may need additional information on the use, specification, and maintenance of BMPs. Additional information resources are listed below: • 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://www.udfcd.org/downloads/pdf/critmanual/vol3/Volume 3.zip • For construction BMPs and surface stabilization methods, the Alabama Soil and Water Conservation Committee has developed "Erosion Control, Sediment Control and Stormwater Management on Construction Sites and Urban Areas, Volume I Developing Plans and Designing Best Management Practices." This information is available on the internet at http://swcc.state.al.us/pdf/ASWCC June 2003 Alabama Handbook Construction E&S Control.pdf • 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 on the internet at http://www.blm.gov/bmp/field%20guide.htm 4.2 Storm Water Management Controls This SWMP is intended to provide: I. Guidance for storm water management; 2. A list of suitable structural BMPs; 3. Guidance for revegetation, 4. Requirements for specification, installation, inspection and maintenance ofBMPs; and 5. Requirements for inspection, documentation, and reporting ofBMPs and revegetation. Given the length of pipeline that will be constructed for Bargath operations site-specific BMP requirements will be developed as plans for construction are finalized and as construction commences and progresses. These site-specific BMP plans will be developed and submitted to the storm water administrator. Site-specific BMP plans, although not bound with this document, are considered to be supplemental to this SWMP and should be included as developed. Depending on the type and location of ground disturbing activities there may be a need for inclusion of new and different BMPs. In general, new developments should be planned with consideration for storm water quality (e.g. minimize disturbed area and maximize distance from drainages, as practicable). Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 12 Cordilleran Compliance Services, Inc. Grand Junction, Colorado 4.3 SWMP Administrator The SWMP Administrator is responsible for: Authority for dedicating the necessary financial and human resources to implement the SWMP; Implementing spill clean ups; Notifying local authorities and local residents in the event that a significant release of storm water occurs that leaves the location; and Signatory authority. Coordinating various stages of plan development and implementation; Conducting inspections; Coordinating employee training programs; Maintaining all records; Making certain that all appropriate reports are submitted as necessary; Coordinating the implementation of the preventive maintenance program; and Supervising spill response and housekeeping measures. 4.4 Other Controls 4.4.1 Materials Management Pipeline construction will generate various other wastes during the course of construction. Other wastes may include the following: • Trees and shrubs from clearing operations, • Trash and debris from construction materials and workers, and • Sanitary sewage. Each of these wastes will be managed so as to not contribute to storm water pollution. Trees and shrubs will be stockpiled outside of the work area or placed to provide additional sediment control. Construction trash and debris will be collected in containers and hauled off-site for disposal in suitable landfills. Sanitary waste will be containerized in portable toilets or other storage tanks with waste materials regularly pumped and transported off-site for disposal at approved facilities. 4.4.2 Fuels and Materials Management Petroleum Products Petroleum products which may be present at the construction sites 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 55-gallon or smaller containers. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 13 Cordi/leran Compliance Services, Inc. Grand Junction, Colorado Pollutants from petroleum products used during construction activities adhere easily to soil particles and other surfaces. Vehicles and equipment should not be fueled or serviced within 100 feet of any drainage. 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 drilling 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 (informal and undocumented) inspections will be conducted to identify leaks and initiate corrective actions, if needed. The following guidelines for storing petroleum products will be used. • All product containers will be clearly labeled. • Drums will be kept off the ground within secondary containment and stored under cover if needed. • Fuel tanks will be stored within 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 clean up and containment materials (absorbent, shovels, etc.) will be easily accessible. Spills will be cleaned in a timely manner and reported as required in accordance with applicable regulations (i.e, COGCC, CDPHE, EPA or other agency requirements). • Contaminated materials will be properly stored on site until they can be disposed of in accordance with applicable regulations. • Storage areas and containers will be regularly monitored for leaks and repaired or replaced as necessary. Workers should be reminded about proper storage and handling of materials during weekly subcontractor or safety meetings Other Chemicals Products Management Additional materials may be used and stored on site for use in construction and equipment testing activities. 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. 4.4.3 Laydown and Staging Areas The pipeline contractor will maintain laydown or staging areas for equipment and materials storage at each site. These areas will be maintained with good housekeeping and will be inspected on a regular basis for spills, leaks, and potential contamination. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 14 Cordilleran Compliance Services, Inc. Grand Junction, Colorado 4.4.4 Construction Site Housekeeping Construction area 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 off-site, suitable facilities. If spills occur 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 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 for major overhauls. Temporary and permanent roads will be installed and stabilized to minimize the transport of sediment from the road surface by mobile equipment. Cleanup of trash and discarded materials will be conducted at the end of each work day. Cleanup will consist of patrolling the work areas to pickup trash, scrap steel, other discarded materials, and any contaminated soil. These materials will be disposed of appropriately. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 15 Cordil/eran Compliance Services, Inc. Grand Junction, Colorado 5.0 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: A qualified person familiar with the SWMP and control measures will conduct the inspections. Inspections will cover these area of the construction site: o Disturbed areas without stabilization, o Material storage areas, o Check dams, o Silt fence, o Surface water diversions, o Downgradient areas, o New access roads and o Locations where vehicles enter or exit the site. Inspections will occur at least once every 14 calendar days and within 24 hours of a precipitation or snow melt event that causes erosion. Permanently stabilized areas will be inspected at least once per month. A log of inspections will be kept. Water quality will be assessed for all receiving streams and discharge areas during each inspection. Disturbed areas and material storage areas that are exposed to precipitation will be inspected for evidence of pollutants entering nearby drainages. Check dams, silt fences, and other BMPs will be inspected for evidence of deterioration, under-cutting, and build up of sediment. Sediment will be removed when it has built up one-third to one-half the height of the straw bales or silt fence. Roads used for vehicle access will be inspected for evidence of off-site sediment transport. Following each inspection, the SWMP will be modified as necessary to include additional controls designed to correct identified problems. Revisions to the SWMP will be made within 7 days of the inspection. An inspection report summarizing the scope of the inspection, the name of the person conducting the inspection, date of inspection, and observations relating to the implementation will be prepared. Inspection reports will be retained for at least 3 years from the date that the site is finally stabilized. Actions taken to modify any storm water control measure will be recorded and maintained with the SWMP. If no deficiencies are found during the inspection, the report will contain certification that the site is in compliance with the SWMP. Signatures will be in accordance with the General Permit Conditions. Maintenance will include prompt repairs and/or adjustments to any erosion and sediment control structures that are deteriorating or found to be performing inadequately. Repairs should be made Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 16 Cordilleran Compliance Services, Inc. Grand Junction, Colorado as soon as possible and prior to the next anticipated storm event. Bargath or designated contractor(s) will maintain, on-site all materials necessary to make any reasonably expected repairs such as silt fence, straw bales, and stakes. 5. I Inspection Log The following procedures for record keeping and internal reporting will be followed to keep accurate and complete documentation of events associated with the storm water management program. A SWMP Logbook will be developed for the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Examples of the inspection checklists to be included in the logbook are presented in Attachment A. The SWMP Logbook will include an Inspection Log. This will be used, when appropriate, for recording pertinent information regarding storm water management activities. The kinds of information that will be recorded include: Observations of spills, leaks, or overflows; the location, time, date, and weather conditions when the event occurred; and the corrective actions required and taken will be recorded; Storm water management and pollution prevention training activities; Contacts with regulatory agencies and personnel; and Maintenance and repair of structural storm water management controls. 6.0 ALLOWABLE NON-STORMW ATER DISCHARGES No non-storm water discharges are anticipated from this pipeline construction project. Possible exceptions include fire prevention/suppression dust control activities. 7.0 FINAL STABILIZATION 7.1 Final Stabilization of Short-Term Disturbances Short-term disturbances are those areas disturbed for a short-term, typically less than a year, such as constructing a pipeline. These areas will be reclaimed and vegetated shortly following the completion of construction. Final stabilization is reached when all soil disturbing activities at the site have been completed and uniform vegetative cover has been established with a density of at least 70 percent of the pre-disturbance levels or equivalent permanent, physical erosion reduction methods have been employed. For short-term disturbances where final stabilization will be achieved almost exclusively through vegetation establishment permanent physical methods will be limited to rock erosion protection. Establishment of vegetation will be conducted as described in Sections 4.1.14 and 4.1.15. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 17 Cordi!leran Compliance Services, Inc. Grand Junction, Colorado 7.2 Final Stabilization of Long-Term Disturbances Long-term disturbances are those areas disturbed for the purpose of constructing and operation of long-term use facilities. These areas will reach final stabilization through both methods allowed under the permit conditions which are: establishment of uniform vegetative cover with a density of 70 percent of the pre-disturbance levels; or equivalent permanent, physical erosion reduction methods. Areas at construction sites which are not used for the construction themselves, access roads, materials storage yards, or other work areas will be stabilized with vegetation as described above for short-term disturbances. Areas at construction sites that include access roads, materials storage yards, and other work areas will be stabilized with the use of semi-permanent, physical erosion reduction methods which include, but are not limited to: I. Surface hardening -covering of the soil surface with hardened products such as concrete or asphalt pavement. 2. Surface covering -covering of the surface soil with structure that inhibits contact of precipitation with the soil surface which is generally considered to be placement of a structure over the soil surface. 3. Gravel surfacing -gravel surfacing will be applied in areas such as access roads, materials storage yards, and other work surfaces. Some gravel may be lost due to erosion from intense precipitation events or due to vehicle traffic. Gravel surfaces will be periodically inspected to determine the need for gravel replacement. Gravel surfaces will be replaced or repaired (through grading) when inspection reveals that the gravel surface is no longer effectively covering the soil surface. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Storm Water Management Plan 18 Cordil!eran Compliance Services, Inc. Grand Junction, Colorado 8.0 CONSISTENCY WITH OTHER PLANS This SWMP has been written and revised without the preparation of a separate SPCC plan specific to construction activities. In addition, the final condition and operational activities associated with the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line are not anticipated to require an SPCC plan that complies with §112.7 of the Oil Pollution Prevention Regulation (40 CFR §112) issued under section 311 of the Federal Water Pollution Control Act. 9.0 ADDITIONAL REQUIREMENTS FOR FACILITIES SUBJECT TO SARA TITLE III, SECTION 313 REQUIREMENTS The Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line site is not subject to SARA Title Ill, Section 313 requirements because there have been no releases of reportable quantities of hazardous materials to land or water from this facility. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Construction Stonn Water Management Plan 19 Cordilleran Compliance Services, Inc. Grand Junction, Colorado COTTONWOOD COMPRESSOR STATION TO PARACHUTE CREEK GAS PLANT GATHERING LINE FIGURES AND TABLES ..,_ .. ,., .. ,..,. ........ LIO< ........ <UOXI 1'100/<0 •Jl'O .... .,.... ,. ,,,....,. OGVliO:lt'i~if!W,?g~l~YO 'll11~.LVT .iNl1:JJ/J !JNIH3HLJ'9 ,.OC ''''" -·-""'"""""'' 0 ~··-·-... 6 __ , 0 >>m -:o-. ...,.,,,,, 0 ................. g °™""'~ «•• ... ..,.,;::;: , ..,,:=.-·--.. • --+ ""'"'::{.~ ""¥- .,~ ~ ........ ~ .. ........,... ~·· ,.-...... ,, .. ..,.... _,., .................. "'"" T _ ,, .. .,,. ...... _ ··-:;r -.... AU -;:i;--T ~=-Q-,,_ T -~ " ·~· -• '"""""-··-• --\\J.o .,,,,.,,_ • ~-• ........... • --• .. ,.',.'!j.W,..,!,li""9-" '""'"'"' • 0)[1031 SllON Sll .. lt"O ,,,,.,.,.,,., ·~-"d80:J 71£10Jf NO.XXS ~-----------------···-·· 011 »DJ Ql SS. 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Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line PUBLIC SAFETY NOTIFICATION Fire ............................................................................................................................................... 91 I Police ............................................................................................................................................ 91 I GOVERNMENT AGENCY NOTIFICATIONS -VERBAL National Response Center ........................................................................................ 1-800-424-8802 (24 hr/day-7 days/week) Colorado Department of Natural Resources Oil and Gas Conservation Commission .................................................................... (303) 894-2100 (24 hr/day) Colorado Department ofHealth ................................................................................ (303) 692-3596 Discharge report and response center hours (8:00-4:30) Garfield County Health Department ......................................................................... (970) 625-5200 902 Taughenbaugh Boulevard Suite 104 Rifle, CO 81650 Water Quality Control ............................................................................................... (970) 248-7150 222 South 61h Street #232, Grand Junction, Colorado 81501 GOVERNMENT AGENCY NOTIFICATIONS-WRITTEN Report spills that have the potential to reach or have reached state waters to: Colorado Department ofHealth ................................................................................ (303) 692-3500 Water Quality Control Division (8 am - 5 pm) 4300 Cherry Creek Drive South (303) 692-3596 Denver, Colorado 80222-1530 (notify within 24 hrs) Colorado Department of Natural Resources Oil and Gas Conservation Commission .................................................................... (303) 894-2100 1120 Lincoln Street, Suite 801 (8 am - 5 pm) Denver, Colorado 80203 (notify within 24 hrs) TABLE I NOTIFICATION OF OUTSIDE PARTIES PUBLIC SAFETY OFFICIALS AND GOVERNMENT AGENCIES (Continued) Bargath, Inc. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line GOVERNMENT AGENCY NOTIFICATIONS-WRITTEN Colorado Public Utilities .......................................................................................... (303) 894-2000 1580 Logan Street, 2nd Floor (7:30 to 5:30) Denver, Colorado 80203 (notify within 24 hrs) U.S. Department ofTransportation ........................................................................... (202) 366-4580 Office of Pipeline Safety Information Resource Manager Washington, DC 20590 (Gas Distribution -Form RSPAF 7100.1-1) (Gas Transmission and Gathering -Form RSPAF 7100.2-1) U.S. Department ofTransportation ........................................................................... (303) 231-5701 Office of Pipeline Safety 12600 West Colfax Avenue, Suite A250 Lakewood, CO 80228 (To Obtain Forms RSPAF 7100.1-1 and 7100.2-1) TABLE2 SPILL CLEANUP CONTRACTORS Bargath, Inc. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line CONTRACTOR D & G Roustabout Service 8643 20 Road #A Fruita, Colorado Roustabout Specialties Inc. 789 Valley Court Grand Junction, Colorado Craigs Roustabout Service Vernal, Utah J West Roustabout Service Vernal, Utah Cordilleran Compliance Services 826 21 Y, Road Grand Junction, Colorado Toby's Vacuum Truck Service 16 Murray Court Parachute, Colorado Key Energy Services 1313 Denver A venue Ft. Lupton, Colorado PHONE (970) 858-1581 (970) 241-9696 ( 435) 828-4242 ( 435) 828-5046 (970) 263-7800 (970) 285-7271 (303) 659-2062 SERVICE Roustabout Roustabout Roustabout Roustabout Environmental Consulting and Remediation Vacuum Trucks Vacuum Trucks ATTACHMENT A COTTONWOOD COMPRESSOR STATION TO PARACHUTE CREEK GAS PLANT GATHERING LINE STORM WATER MANAGEMENT INSPECTION LOG AND INSPECTION FORM Storm Water Management Field Inspection Log Bargath, Inc. Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line Garfield County, Colorado This log is a record of the field inspections conducted in order to determine if storm water has been impacted by industrial activities has left the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line and entered navigable waters of the United States of America. Bargath, Inc. personnel conducted these inspections during routine activities in order to identify potential storm water impacts on the following dates. Personnel conducting inspection: Date: Releases reported: YesO No 0 YesO No 0 YesDNoO YesDNoD YesDNoD YesDNoD YesDNoD YesDNoO YesD No 0 YesD No 0 I am familiar with the personnel and operations at the Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line, and to the best of my knowledge, the information contained is true and accurate. Name/Title Date: SWMP INSPECTION REPORTING FORM Cottonwood Compressor Station to Parachute Creek By: Date: Gas Plant Gathering Line I Overall II Need I G -GOOD, F -FAIR, P -POOR, Y -YES, N -NO Permit No.: Condition Reoair omments STRUCTURAL MEASURES Sediment Containment Systems Barriers for Sheet Flows Bale Silt Fence Drain/Inlet Protection Bale Barriers Rock Barriers Inserts Channel Check Structures Bale Barriers Rock Barriers OtherBMPs Vehicle Tracking Pad !VON-STRUCTURAL MEASURES Diversion Dikes and/or Swales Slone Drains Mulch and/or BFM Protection Soil Binder Protection Hillside RECPs Drainage Channel TRMs Riprap and/or Gabions G F PllY N N G F PllY N G F PllY N G F PUY N t~~}f~~~~j~~. ~1#!~~~~~t~£~~-t~lir~ G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N G F p y N SWMP INSPECTION REPORTING FORM Will existing BMPs need to be modified or removed or additional BMPs installed? YES NO If yes, list the action items to be completed on the following table. Actions to be completed Date Completed 1. 2. 3. 4. 5. 6. Reason for inspection: Routine 14-day interval __ Significant storm event. Weather information since the last inspection was held. Date Duratio Date Duratio Amount Even Be an Hours Even Be an Hours Inches 2 3 4 5 6 Are uncontrolled releases of mud or muddy water from the site and/or deposits of sediment evident? YES NO If yes, where and what corrective actions are to occur? Are non-compliance incidents evident? YES NO If no, sign the following certification: I certify the facility is in compliance with the SWMP and this permit. ---------------- If yes, should the SWMP document or drawings be modified? drawing modifications are to be completed within seven days. Comments: YES NO Inspection completed on: b : (Signature) If yes, the following Title/Qualification of Inspector:. ___________________________ _ ATTACHMENT B COTTONWOOD COMPRESSOR STATION TO PARACHUTE CREEK GAS PLANT GATHERING LINE TYPICAL STORM WATER BMP DETAILS -Flume Drain -Diversion Berm & Channel -Culvert Outlet Rock Protection -Sediment Catch Basin -Silt Fence -Straw Bale Barrier -Check Dams -Fiber Rolls -Gravel Bag Berms -Storm Drain Inlet Protection -Stabilized Construction Entrance/Exit -Stabilized Construction Roadway -Entrance/Outlet Tire Wash FLUME DRAINAGE CROSSING TYPICAL PLAN VIEW NTS FLOW ~j SEE NOTE 1 ____,.,._,_.,_:_,___ ~SEE NOTE 2 d?/Z7A::_/~ I I I I I I I I I I PIPELINE CONSTRUCTION ROW ~~ j /SEE d NOTE 3 NOTES: 1. EXTEND CULVERT AT LEAST 3 FEET BEYOND TOE OF FILL, UPSTREAM AND DOWNSTREAM. 2. ROLLED PRODUCT ON FILL SLOPE. 3. ENERGY DISSIPATION BELOW CULVERT OUTLET, (IF REQUESTED). CONSTRUCTION SURFACE TYPICAL PROFILE NTS ORIGINAL I SURFACE "-----~~..:c,.~~~ ----- ~~ ~ ~ ~ CULVERT \-BOTTONME o;RENCH PIPELI TYPICAL FLUME LAYOUT BARGATH, INC. STORM WATER MANAGMENT PLAN BMP REVISION Oliff:. 4/21/06 REVISION NUl.OBER· 001 DRAWN SY; DI.IP APPROVEO BY; Or..tP PROJECT # EG06127 SCALE: NONE .. (ORDILLERAN VARIOUS 17 NOTES: I 2v ~---, ,~,---1 2' BERM (SEE NOTE # 1) - -~ """"' ~" ~1~1 1. BERM TO BE COMPACTED BY WHEEL ROLLING OR TRACK WALKING WITH SUITABLE HEAVY EQUIPMENT. 2. CHANNEL TO BE CONSTRUCTED AT A MINIMUM 2% GRADE. 3. A 2h:lv SLOPE IS THE MAXIMUM. 3h:lv SLOPES ARE PREFERRED NOTE #2) ~ 11 VARIOUS TYPICAL CHANNEL AND BERM BARGATH, INC. STORM WATER MANAGMENT PLAN BMP REVISION OATE: 4/21/06 REVISION NUMBER. 001 ORAWN SY: DI.IP APPROVED BY: QI.IP PROJECT # EG06127 SCALE: NONE ~ (ORDILLERAN COMPACTED SOIL ·I/ L __ ----------:--....,' .,,--,-----:-----:---c---:--------~-,-.,,--'.",·,·.~---:----;-:--7 EXISTING GROUND ' NOTES: 1. BERM FILL MATERIAL TO CONTAIN SUFFICIENT FINES FOR MAXIMUM WATER RETENTION 2. BERM TO BE COMPACTED BY AT LEAST 3 PASSES OF LOADER, GRADER, OR OTHER SUITABLE HEAVY EQUIPMENT. f . ~ REVISION OATE: I 4/21/06 ~. . . --"..... O REVISION NU~SER: 00\ - ;;~~f~~BYH E~0 6~~;7 (ORDIL·l, ERAN SCALE: NONE TYPICAL DIVERSION BERM BARGATH, INC. STORM WATER MANAGMENT PLAN BMP "I TYPICAL CULVERT PR.OHLE NO -TOO DEEP NO -TOO HIGH _..,, -..... ',''•'· ~ ~...c~o't:;. ... •::-•"•o· ~ • .,\>··~-... .,.,...'> .... ~ £!>')••~ ............... , \.) ~»:~£.:~0:2:.~~~ .... .• ~\ •. YES o·.~ ... ~ ::·~.:~/~ ~ ...... 2 Roadbed 7 S!opol 1 30 cm min. ~:~.:.t:~~~::~~ ~ ,. l)o not change stream bottom ek."Va.tion! TYPICAL CULVERT OUTLET o:(I ~q .• oo"'d)~ • ti ' ... . :·() •• oo -·,, • O". "o "! . {) . ,. ~· .. O.S m ~minimum . ... . . • co 0 ... -.-• ..,,0 0 Ground Lin~ 0·0 0 ., .. p. O• 0'" o : ~ .. ~' ~ 0 ."' .. o .. • .o I ' 0 ,. .. " Q •·:-:~·::--;;--:--::-------• ,. o o 0 a •. ; o ... " do 0 & • 0 • 'co v o.-a. o D 0 ~ 0 o o • 0 . . It. 0 0 0 ~ u. 0 0 ""·o.,-.o o· .. o ·:..· oc:ioo'°4"" 0 0 Q 111 • g, 0 ¢ 0 0 II-""'D !I Q 0 <" ., ... '"' ff/ Q 0 Ill A .. ~' Q 6 • 0..;.. Q <J 0 1;>" "' ..0 • Q .. ... vO ., .. .. .. ...... From "low-Volume Roads Engineering, Best Management Practices Field Guide," BLM and USFS. DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES ~ ~ lEMPORARY SEDIMENT BASIN Definitions @ A temporary basin with a controlled stormwater release structure, formed by excavation or construction of an embankment of compacted soil. Required for all drainage areas greater than 1 area. Purposes To detain sediment-laden runoff from distributed areas to allow the majority of the sediment to settle out. Limiting Geometry: L/W greater than 2.0 Emergency sp~lway should not be constructed over fill material Required volume to crest of emergency spillway = 1800 cubic feet per acre of drainage area. Should be cleaned out prior to becoming half full. From: Virginia Soil and Water Conservation Commission, 1985 Figure C-15-Teporary Sediment Basin 9-1-99 C-47 Urban Drainage and Flood Control District DRAINAGE CRITERIA MANUAL 0f. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES C-48 TI' SEDIMENT CLEAN-OUT LEVEL (INVERT OF LOWEST ORIFICE; AT 50% OF STORAGE VOLUME) 1 00 YR (OR LARGER) tr {OR LARGER) PVC PERFORATED RISER PIPE (PERFORATIONS SIZED TO DRAIN VOLUME BELOW EMERGENCY SPILLWAY IN 40 HOURS) EMERGENCY SPllLWAY CREST (BEYOND) / (SHALL BE PROTECTED WITH RIPRAP) / r~~KMENT "'" FLA TIER ~ 1 ,-----------!' 1111 iii ii/I ---- 1 ---= -- _,11~'~- ' \_ 8" (OR LARGER) PVC OUTt.ET PIPE 'o" FLATTER , """--I ' a• (OR LARGER) PVC 90• ELBOW 0.5% MIN SLOPE Figure C-15A-Temporary Sediment Basin Outlet Detail RIPRAP APRON 9-1-99 Urban Drainage and Flood Control District Silt Fence Description and Purpose A silt fence is made of a filter fabric that has been entrenched, attached to supporting poles, and sometimes backed by a plastic or wire mesh for support. The silt fence detains sediment-laden water, promoting sedimentation behind the fence Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Potential Alternatives Fiber Rolls Gravel Bag Berm Sandbag Barrier Straw Bale Barrier Silt fences are suitable for perimeter control, placed below areas where sheet flows discharge from the site. They should also be used as interior controls below disturbed areas where runoff may occur in the form of sheet and rill erosion. Silt fences are generally ineffective in locations where the flow is concentrated and are only applicable for sheet or overland flows. Silt fences are most effective when used in combination with erosion controls. Suitable applications include: D Along the perimeter of a project. D Below the toe or down slope of exposed and erodible slopes. D Along streams and channels. D Around temporary spoil areas and stockpiles. D Below other small cleared areas. Silt Fence BMP Document I of7 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Silt Fence Limitations D Do not use in streams, channels, drain inlets, or anywhere flow is concentrated. D Do not use in locations where ponded water may cause flooding. D Do not place fence on a slope, or across any contour line. If not installed at the same elevation throughout, silt fences will create erosion. D Filter fences will create a temporary sedimentation pond on the upstream side of the fence and may cause temporary flooding. Fences not constructed on a level contour will be overtopped by concentrated flow resulting in failure of the filter fence. D Improperly installed fences are subject to failure from undercutting, overlapping, or collapsing. D Not effective unless trenched and keyed in. D Not intended for use as mid-slope protection on slopes greater than 4: 1 (H: V). D Do not allow water depth to exceed 1.5 ft at any point. Implementation General A silt fence is a temporary sediment barrier consisting of filter fabric stretched across and attached to supporting posts, entrenched, and, depending upon the strength of fabric used, supported with plastic or wire mesh fence. Silt fences trap sediment by intercepting and detaining small amounts of sediment-laden runoff from disturbed areas in order to promote sedimentation behind the fence. Silt fences are preferable to straw bale barriers in many cases. Laboratory work at the Virginia Highway and Transportation Research Council has shown that silt fences can trap a much higher percentage of suspended sediments than can straw bales. While the failure rate of silt fences is tower than that of straw bale barriers, there are many instances where silt fences have been improperly installed. The following layout and installation guidance can improve performance and should be followed: D Use principally in areas where sheet flow occurs. D Don't use in streams, channels, or anywhere flow is concentrated. Don't use silt fences to divert flow. D Don't use below slopes subject to creep, slumping, or landslides. D Select filter fabric that retains 85% of soil by weight, based on sieve analysis, but that is not finer than an equivalent opening size of 70. D Install along a level contour, so water does not pond more than 1.5 ft at any point along the silt fence. D The maximum length of slope draining to any point along the silt fence should be 200 ft or less. D The maximum slope perpendicular to the fence line should be 1: I. D Provide sufficient room for runoff to pond behind the fence and to allow sediment removal equipment to pass between the silt fence and toes of slopes or other obstructions. Aboutl200 ft2 of ponding area should be provided for every acre draining to the fence. D Turn the ends of the filter fence uphill to prevent storm water from flowing around the fence. D Leave an undisturbed or stabilized area immediately down slope from the fence where feasible. D Silt fences should remain in place until the disturbed area is permanently stabilized. Silt Fence BMP Document 2 of7 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Silt Fence Design and Layout Selection of a filter fabric is based on soil conditions at the construction site (which affect the equivalent opening size (EOS) fabric specification) and characteristics of the support fence (which affect the choice of tensile strength). The designer should specify a filter fabric that retains the soil found on the construction site yet that it has openings large enough to permit drainage and prevent clogging. The following criteria is recommended for selection of the equivalent opening size: I. If 50 percent or less of the soil, by weight, will pass the U.S. Standard Sieve No. 200, select the EOS to retain 85 % of the soil. The EOS should not be finer than EOS 70. 2. For all other soil types, the EOS should be no larger than the openings in the U.S. Standard Sieve No. 70 except where direct discharge to a stream, lake, or wetland will occur, then the EOS should be no larger than Standard Sieve No. I 00. To reduce the chance of clogging, it is preferable to specify a fabric with openings as large as allowed by the criteria. No fabric should be specified with an EOS smaller than U.S. Standard Sieve No. 100. If 85% or more of a soil, by weight, passes through the openings in a No. 200 sieve, filter fabric should not be used. Most of the particles in such a soil would not be retained if the EOS was too large and they would clog the fabric quickly if the EOS were small enough to capture the soil. The fence should be supported by a plastic or wire mesh if the fabric selected does not have sufficient strength and bursting strength characteristics for the planned application (as recommended by the fabric manufacturer). Filter fabric material should contain ultraviolet inhibitors and stabilizers to provide a minimum of six months of expected usable construction life at a temperature range of 0 °F to120°F. D Layout in accordance with attached figures. D For slopes steeper than 2:1 (H:V) and that contain a high number of rocks or large dirt clods that tend to dislodge, it may be necessary to install additional protection immediately adjacent to the bottom of the slope, prior to installing silt fence. Additional protection may be a chain link fence or a cable fence. D For slopes adjacent to sensitive receiving waters or Environmentally Sensitive Areas (ESAs), silt fence should be used in conjunction with erosion control BMPs. Materials D Silt fence fabric should be woven polypropylene with a minimum width of 36 in. and a minimum tensile strength of I 00 lb force. The fabric should conform to the requirements in ASTM designation D4632 and should have an integral reinforcement layer. The reinforcement layer should be a polypropylene, or equivalent, net provided by the manufacturer. The permittivity of the fabric should be between 0. I sec-I and 0.15 sec-I in conformance with the requirements in ASTM designation D4491. D 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. D Staples used to fasten the fence fabric to the stakes should be not less than 1.75 in. long and should be fabricated from 15 gauge or heavier wire. The wire used to fasten the tops of the stakes together when joining two sections of fence should be 9 gauge or heavier wire. Galvanizing of the fastening wire will not be required. Silt Fence BMP Document 3 of7 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Silt Fence D There are new products that may use prefabricated plastic holders for the silt fence and use bar reinforcement instead of wood stakes. If bar reinforcement is used in lieu of wood stakes, use number four or greater bar. Provide end protection for any exposed bar reinforcement. Installation Guidelines Silt fences are to be constructed on a level contour. Sufficient area should exist behind the fence for ponding to occur without flooding or overtopping the fence. D A trench should be excavated approximately 6 in. wide and 6 in. deep along the line the proposed silt fence. 0 Bottom of the silt fence should be keyed-in a minimum of 12 in. D Posts should be spaced a maximum of 6 ft apart and driven securely into the ground a minimum of 18 in. or 12 in. below the bottom of the trench. D When standard strength filter fabric is used, a plastic or wire mesh support fence should be fastened securely to the upslope side of posts using heavy-duty wire staples at least 1 in. long. The mesh should extend into the trench. When extra-strength filter fabric and closer post spacing are used, the mesh support fence may be eliminated. Filter fabric should be purchased in a long roll, then cut to the length of the barrier. When joints are necessary, filter cloth should be spliced together only at a support post, with a minimum 6 in. overlap and both ends securely fastened to the post. D The trench should be backfilled with compacted native material. D Construct silt fences with a setback of at least 3 ft from the toe of a slope. Where a silt fence is determined to be not practicable due to specific site conditions, the silt fence may be constructed at the toe of the slope, but should be constructed as far from the toe of the slope as practicable. Silt fences close to the toe of the slope will be less effective and difficult to maintain. D Construct the length of each reach so that the change in base elevation along the reach does not exceed 1/3 the height of the barrier; in no case should the reach exceed 500 ft. Costs 0 Average annual cost for installation and maintenance (assumes 6 month useful life): lineal foot ($850 per drainage acre). Range of cost is $3.50 -$9 .10 per lineal foot. $7 per Inspection and Maintenance D 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. D Repair undercut silt fences. D Repair or replace split, torn, slumping, or weathered fabric. The lifespan of silt fence fabric is generally 5 to 8 months. D Silt fences that are damaged and become unsuitable for the intended purpose should be removed from the site of work, disposed of, and replaced with new silt fence barriers. D Sediment that accumulates in the BMP must be periodically removed in order to maintain BMP effectiveness. Sediment should be removed when the sediment accumulation reaches one-third of the barrier height. Sediment removed during maintenance may be incorporated into earthwork on the site or disposed at an appropriate location. 0 Silt fences should be left in place until the upstream area is permanently stabilized. Until then, the silt fence must be inspected and maintained. Silt Fence BMP Document 4 of7 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Silt Fence D Holes, depressions, or other ground disturbance caused by the removal of the silt fences should be backfilled and repaired. References Manual of Standards of Erosion and Sediment Control Measures, Association of Bay Area Governments, May 1995. National Management Measures to Control Nonpoint Source Pollution from Urban Areas, United States Environmental Protection Agency, 2002. Proposed Guidance Specifying Management Measures for Sources ofNonpoint Pollution in Coastal Waters, Work Group-Working Paper, USEPA, April 1992. Sedimentation and Erosion Control Practices, and Inventory of Current Practices (Draft), UESPA, 1990. Southeastern Wisconsin Regional Planning Commission (SWRPC). Costs of Urban Nonpoint Source Water Pollution Control Measures. Technical Report No. 31. Southeastern Wisconsin Regional Planning Commission, Waukesha, WI. 1991 Storm water Quality Handbooks -Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. Storm water Management Manual for The Puget Sound Basin, Washington State Department of Ecology, Public Review Draft, I 991. U.S. Environmental Protection Agency (USEPA). Stormwater Management for Industrial Activities: Developing Pollution Prevention Plans and Best Management Practices. U.S. Environmental Protection Agency, Office of Water, Washington, DC, I 992. Water Quality Management Plan for the Lake Tahoe Region, Volume II, Handbook of Management Practices, Tahoe Regional Planning Agency, November 1988. California Storm Water Quality Association, California Storm Water BMP Handbook -Construction, January 2003. Silt Fence B:MP Document 5 of7 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado () [/) 0 -· 0 "" ;<?. .,, " " c 0 0 0 :::-. . < ~ ;:;· ;s-~ ' . ~ S' c 0 Mox reach 500' (See note 1 \ Option(]I ,-.-.ointenonce Cr0ss borrier ~See note 10) opening detail \\ I ~ rl Fabric~ I a_ @ " 9¥ / CW 0/ R \J @ @ 0 Cross barrier_/' \ I Toe of sbpe j ------0 PLAr~ ~ Sic T FENCE 17i! HO TES Constrc1ct the len'jth of each reach so that the change in elevot•on along the reach does not exceed l/J the height barrier, in no case shall the r·eoch length e•ceed 500' The lost 8'-0" 01 fence shall be turnetl up slope Sto~e dimensions ore nominal ):mension mo; •1ory \.) fit fie;d c:ondition 5 Stokes shall be spoct':d at 8'-0" maximum arid snail be rosit•or.-?d on downs:renrn side of fence base of the linear t; Stokes to 0"'erlop 01d fence fabric to fold around each stoke one full turn Secure fabric to stoke with 4 staples Stokes sho·I be dri·1en lightly together to prevent potential flow-thro1Jgh of sediment at JOint. The tops of the stokes shoil be secured with wire 8 "0r end stoke. fence fabric shall be folded around two stokes one full turn and secured with 4 staples 5 Minimum 4 staples per stoke Dimensioris shown ore typical 10 Cross bcrrjers shall be o minimum of 1/3 ond a maximum of 1/2 the height of the linear barrier 11 Maintenance openings shall be constructed in a manner to ensure sediment remains behind silt fence 12 Joining sections shall not be placed at sump locations. 13 Sandbag rows and layers shall be offset to eliminate gaps / ' ™ Wood stoke ,/ J} LEGEND Tomoed backfill Slope direction Direction of flow Fabric End detail Silt fence _,b Toe of slope J a1 CROSS BARRIER DETAIL Sandbags See note 10 SECTION C-C (/) -· -,... 'Tl (1) :I n (1) (") 'fJ 0 ::..: ~ ~ ~ .,., 2 g 0 0 :=. t'll 0 Ol ~~ 0 t! 3 0 :E g i". 3 ~ ~ 'a g 3! g .., 0 ..., .., (;l ' ~ :;-• " , ti ~ ~ -6 ?~ ~ ~ §' ~ . :i g ;;:;· C' ~ ' . g_ :S-c 0 2" X 2" Wood stoke '.See notes 3 & 5) rSee 'detail A / ~ "' L~~ SECTICN A-A Silt f~~~r~c ~ "' ' j__~ , .. DETAIL A r" 2" wood stoke Stoke notes (; 7 & 12) - b c ""'°" B Stoke A Fabric section A / (See rlOtes G. 7 & 12) __; JOINING SECTION DETAIL (TOP VIE'N) ~1··.r"ood (See note 3) Fobric (See note END STAKE DETAIL (TOP l/iEW) End stoke /(See riote 2) t""L.~1 END DETAIL stoke ~ 1/lb" diameter LEGEND Tamped backfill Slope direction Direction of flow '-'1L 11 -j] _j l-1-LL STAPLE DETAIL (SEE NOTE ~) Fabric Stake Stoke Fabric Toe of slope End stake~ Sandbags (2-loyers high) OPTIONAL MAINTENANCE OPENING DETAIL (SEE NOTE 11) {/) -· -..... .,, tD :I n I tD 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. Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Straw bale barriers may be suitable: D As a linear sediment control measure: Below the toe of slopes and erodible slopes As sediment traps at culvert/pipe outlets Below other small cleared areas Along the perimeter of a site Down slope of exposed soil areas Around temporary stockpiles and spoil areas Potential Alternatives Silt Fence Fiber Rolls Gravel Bag Berm Sandbag Barrier Parallel to a roadway to keep sediment off paved areas Along streams and channels D As linear erosion control measure: Along the face and at grade breaks of exposed and erodible slopes to shorten slope length and spread runoff as sheet flow At the top of slopes to divert runoff away from disturbed slopes As check dams across mildly sloped construction roads Straw Bale Barrier BMP Document Construction Storm Water Management Plan I of5 Cordilleran Compliance Services, inc. Grand Junction, Colorado Limitations Straw bale barriers: Straw Bale Barrier D Are not to be used for extended periods of time because they tend to rot and fall apart D Are suitable only for sheet flow on slopes of I 0 % or flatter D Are not appropriate for large drainage areas, limit to one acre or less D May require constant maintenance due to rotting D Are not recommended for concentrated flow, inlet protection, channel flow, and live streams D Cannot be made of bale bindings of jute or cotton D Require labor-intensive installation and maintenance D Cannot be used on paved surfaces D Should not to be used for drain inlet protection D Should not be used on lined ditches D May introduce undesirable non-native plants to the area Implementation General 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. 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. Design and Layout D Locate straw bale barriers on a level contour. Slopes up to 10:1 (H:V): Straw bales should be placed at a maximum interval of 50 ft (a closer spacing is more effective), with the first row near the toe of slope. Slopes greater than IO: I (H:V): Not recommended. D Turn the ends of the straw bale barrier up slope to prevent runoff from going around the barrier. D Allow sufficient space up slope from the barrier to allow ponding, and to provide room for sediment storage. D For installation near the toe of the slope, consider moving the barrier away from the slope toe to facilitate cleaning. To prevent flow behind the barrier, sand bags can be placed perpendicular to the barrier to serve as cross barriers. D Drainage area should not exceed 1 acre, or 0.25 acre per l 00 ft of barrier. D Maximum flow path to the barrier should be limited to I 00 ft. D Straw bale barriers should consist of two parallel rows. Butt ends of bales tightly. Stagger butt joints between front and back row Each row of bales must be trenched in and firmly staked D Straw bale barriers are limited in height to one bale laid on its side. Straw Bale Barrier BMP Document Construction Storm Water Management Plan 2 of5 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Straw Bale Barrier D Anchor bales with either two wood stakes or four bars driven through the bale and into the soil. Drive the first stake towards the butt joint with the adjacent bale to force the bales together. 0 See attached figure for installation details. Materials D 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. D 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. D 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. Costs Straw bales cost $5 -$7 each. Adequate labor should be budgeted for installation and maintenance. Inspection and Maintenance Maintenance D 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. D Straw bales degrade, especially when exposed to moisture. Rotting bales will need to be replaced on a regular basis. D Replace or repair damaged bales as needed. D Repair washouts or other damages as needed. D Sediment that accumulates in the BMP must be periodically removed in order to maintain BMP effectiveness. Sediment should be removed when the sediment accumulation reaches one-third of the barrier height. Sediment removed during maintenance may be incorporated into earthwork on the site or disposed at an appropriate location. D Remove straw bales when no longer needed. Remove sediment accumulation, and clean, re- grade, and stabilize the area. Removed sediment should be incorporated in the project or disposed of. References Stormwater Quality Handbooks -Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. California Storm Water Quality Association, California Storm Water BMP Handbook-Construction, January 2003. Straw Bale Barrier BMP Document Construction Storm Water Management Plan 3 of5 Cordilleran Compliance Services, Inc. Grand Junction. Colorado (") ,.,, 0 <;' ~ ~ 2 tll n " g· ~ ,.,, " 0 3. 3 !I :E tll " s:: O' .,, ~ 0 s:: 0 " n ~ c " 3 OQ " " ~ 3 - " :a .,, §" .. 0 ~ ~ bl ' ~ ;, ~ Cl , ' (") § ~ ".,, ~ ff B. ~ g "' . s g n· C" ~ ' . ~ "' g.. ~ '"' barrrer \ Slcow be • \ Mox reach 500' Toe of /r--Cross barrier "41 / / slo;ie J ~JD ~ Vi' PLAi'J STRAW BALE BARRIER 1-JOTES Construct the length o1 each reach so tho\ the change in base elevation along the reach does not exceed 1/2 \he height of \he linear barrier. In no case shall the rea.;;h length exceed 500'. The end of barrier shall be turned up slope .3 Dimension may vary to fit field condition Stoke dimensions ore nominal 5 Place straw boles tightly together Tamp embedmen! spoils ogomst sides of mstolled boles 7 Dnve angled wood slake before vertical stoke to ensure tight abutment to OdJOCenl bole 8 Sandbag cross .barriers should be a r:i•n of l /2 of 2/3 the height of the l1neor bomer ond o max Sondbog rows ond loyers shou!d be offset to elim1note gops See n::;:e 1) ~b''' / I ~ LEGEND DIRECTION OF FLOW born er End detoil (See note 2) (/) ,... ., QJ ~ gJ QJ -(I) gJ QJ ., ., -· (I) ., - 3 s· 311JOdd 8-8 NOUJ3S ll'Vl30 ON3 oip·s1no uo <ljOQ MOJlS <lP•Su• uo <>1oq MDJJS~ / ado1s JO '<>Ol_J M013 .:JO N0ilJ3CJl0 Check Dams Description and Purpose A check dam is a small barrier constructed of rock, gravel bags, sandbags, 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. Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Check dams may be appropriate in the following situations: D To promote sedimentation behind the dam. Potential Alternatives Fiber Rolls Gravel Bag Berm Sandbag Barrier D To prevent erosion by reducing the velocity of channel flow in small intermittent channels and temporary swales. D In small open channels that drain I 0 acres or less. D In steep channels where storm water runoff velocities exceed 5 ft/s. D During the establishment of grass linings in drainage ditches or channels. D In temporary ditches where the short length of service does not warrant establishment of erosion-resistant linings. Check Dams BMP Document I of5 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Check Dams Limitations D Not to be used in live streams or in channels with extended base flows. D Not appropriate in channels that drain areas greater than I 0 acres. D Not appropriate in channels that are already grass-lined unless erosion is expected, as installation may damage vegetation. D Require extensive maintenance following high velocity flows. D Promotes sediment trapping which can be re-suspended during subsequent storms or removal of the check dam. Implementation General Check dams reduce the effective slope and create small pools in swales and ditches that drain I 0 acres or less. Reduced slopes reduce the velocity of storm water flows, thus reducing erosion of the swale or ditch and promoting sedimentation. 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: D Don't use check dams. Consider alternative BMPs. D 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. Check Dams BMP Document 2 of5 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Check Dams 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: D Install the first check dam approximately 16 ft from the outfall device and at regular intervals based on slope gradient and soil type. D Check dams should be placed at a distance and height to allow small pools to form between each check dam. D Backwater from a downstream check dam should reach the toes of the upstream check dam. D A sediment trap provided immediately upstream of the check dam will help capture sediment. Due to the potential for this sediment to be resuspended in subsequent storms, the sediment trap must be cleaned following each storm event. D 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. D Where grass is used to line ditches, check dams should be removed when grass has matured sufficiently to protect the ditch or swale. D 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. Installation D Rock should be placed individually by hand or by mechanical methods (no dumping of rock) to achieve complete ditch or swale coverage. D Tightly abut bags and stack according to detail shown in the figure at the end of this section. Gravel bags and sandbags should not be stacked any higher than 3 ft. D Fiber rolls and straw bales must be trenched in and firmly staked in place. Costs Cost consists of only installation costs if materials are readily available. If material must be imported, costs may increase. Check Dams BMP Document 3 of5 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction. Colorado Check Dams Inspection and Maintenance D 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. 0 Replace missing rock, bags, bales, etc. Replace bags or bales that have degraded or have become damaged. 0 If the check dam is used as a sediment capture device, sediment that accumulates in the BMP must be periodically removed in order to maintain BMP effectiveness. Sediment should be removed when the sediment accumulation reaches one-third of the barrier height. Sediment removed during maintenance may be incorporated into earthwork on the site or disposed at an appropriate location. D If the check dam is used as a grade control structure, sediment removal is not required as long as the system continues to control the grade. 0 Remove accumulated sediment prior to permanent seeding or soil stabilization. D Remove check dam and accumulated sediment when check dams are no longer needed. References Draft -Sedimentation and Erosion Control, and Inventory of Current Practices, USEPA, April ! 990. Manual of Standards of Erosion and Sediment Control Measures, Association of Bay Area Governments, May 1995. Storm water Quality Handbooks -Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. Storm water Management of the Puget Sound Basin, Technical Manual, Publication #91-75, Washington State Department of Ecology, February 1992. California Storm Water Quality Association, California Storm Water BMP Handbook -Construction, January 2003. Check Dams BMP Document 4 of5 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Check Dams '° 1.5 ft min~ )/t,.,y, ,(kt ~ ~ lli; t ""'" ' " ""or-, 11"""'" ,~~ ~, ~/, ~r ,on\1 Qv ~ n ELEVATION 8" to 12" __ diameter rock ~"" ~ / ~c:Bcti0o cO~ (1y Flow A C)(S02J\)O()u 0 n 0 x ~ 0 ~2 /r ~coo oouoDo 0029 1fo.,_ ~0 :Y ~~C?Q 93/Q 9ctJO QvQO o. j en ~~~'0'«<'<-:!~~~~"<;M~'%YW>v~~~~~"«:!V'):0 TYF-'ICAL ROCI< CHECK DA.M SECTION ROCK CHECK DAM . NOT TO SCALE ~ ~ (~RAVEL BAG CHECK DJl,fJ1 E!_EVATIO~J NOT TO SCALI 0 x ~o ~2 en Check Dams BMP Document 5 of5 Cordil/eran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado 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. Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Fiber rolls may be suitable: Potential Alternatives Silt Fence Gravel Bag Berm Sandbag Barrier Straw Bale Barrier D Along the toe, top, face, and at grade breaks of exposed and erodible slopes to shorten slope length and spread runoff as sheet flow. D At the end of a downward slope where it transitions to a steeper slope D Along the perimeter of a project D As check dams in unlined ditches D Down-slope of exposed soil areas D Around temporary stockpiles Fiber Rolls BMP Document I of4 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Fiber Rolls Limitations 0 Fiber rolls are not effective unless trenched D Fiber rolls at the toe of slopes greater than 5:1 (H:V) should be a minimum of20 in. diameter or installations achieving the same protection (i.e. stacked smaller diameter fiber rolls, etc.). 0 Difficult to move once saturated. 0 If not properly staked and trenched in, fiber rolls could be transported by high flows. 0 Fiber rolls have a very limited sediment capture zone. D Fiber rolls should not be used on slopes subject to creep, slumping, or landslide. Implementation Fiber Roll Materials 0 Fiber rolls should be either prefabricated rolls or rolled tubes of erosion control blanket. Assembly of Field Rolled Fiber Roll 0 Roll length of erosion control blanket into a tube of minimum 8 in. diameter. D Bind roll at each end and every 4 ft along length of roll withjute-type twine.· Installation 0 Locate fiber rolls on level contours spaced as follows: Slope inclination of 4:1 (H:V) or flatter: Fiber rolls should be placed at a maximum interval of 20 ft. 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). 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). D Turn the ends of the fiber roll up slope to prevent runoff from going around the roll. 0 Stake fiber rolls into a 2 to 4 in. deep trench with a width equal to the diameter of the fiber roll. Drive stakes at the end of each fiber roll and spaced 4 ft maximum on center. Use wood stakes with a nominal classification of0.75 by 0.75 in. and minimum length of24 in. D If more than one fiber roll is placed in a row, the rolls should be overlapped, not abutted. Removal 0 Fiber rolls are typically left in place. D If fiber rolls are removed, collect and dispose of sediment accumulation, and fill and compact holes, trenches, depressions or any other ground disturbance to blend with adjacent ground. Costs Material costs for fiber rolls range from $20 -$30 per 25 ft roll. Inspection and Maintenance 0 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. D Repair or replace split, torn, unraveling, or slumping fiber rolls. Fiber Rolls BMP Document 2 of 4 Cordil/eran Compliance Services, Inc. Construction Stonn Water Management Plan Grand Junction, Colorado Fiber Rolls D If the fiber roll is used as a sediment capture device, or as an erosion control device to maintain sheet flows, sediment that accumulates in the BMP must be periodically removed in order to maintain BMP effectiveness. Sediment should be removed when sediment accumulation reaches one-half the designated sediment storage depth, usually one-half the distance between the top of the fiber roll and the adjacent ground surface. Sediment removed during maintenance may be incorporated into earthwork on the site or disposed at an appropriate location. D If fiber rolls are used for erosion control, such as in a mini check dam, sediment removal should not be required as long as the system continues to control the grade. Sediment control BMPs will likely be required in conjunction with this type of application. References Stormwater Quality Handbooks -Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. California Storm Water Quality Association, California Storm Water BMP Handbook-Construction, January 2003. Fiber Rolls BMP Document 3 of 4 Cordilleran Compliance Services, inc. Construction Storm Water Management Plan Grand Junction, Colorado Fiber Rolls Note: Install fiber roll "' along o level coni.our. ~ Vertical spacing measured along the face of the slope varies between 1 o' and 20' -'1 "' "' TYPICAL FIBER ROLL INSTALLATION c x ·-0 EE N.T.S N·"-1----~ NJ.~ E .3/4" x 3/4" wood stakes max 4' spacing ENTRENCHMENT DETAIL N.T.S. Fiber Rolls BMP Document 4 of 4 Construction Storm Water Management Plan "' a fiber roll near slope where it transitions into o steeper slope Cordilleran Compliance Services, Inc. Grand Junction, Colorado Gravel Bag Berm ,, ,.-' ,._-,, ,., , Description and Purpose / I { ......... / / / A gravel bag berm is a series of gravel-filled bags placed on a level contour to intercept sheet flows. Gravel bags pond sheet flow runoff, allowing sediment to settle out, and release runoff slowly as sheet flows, preventing erosion. Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Gravel bag berms may be suitable: D As a linear sediment control measure: Below the toe of slopes and erodible slopes As sediment traps at culvert/pipe outlets Below other small cleared areas Along the perimeter of a site Down slope of exposed soil areas Around temporary stockpiles and spoil areas Potential Alternatives Silt Fence Fiber Roll Sandbag Barrier Straw Bale Barrier Parallel to a roadway to keep sediment off paved areas Along streams and channels Gravel Bag Berm BMP Document Construction Storm Water Management Plan I of 4 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Gravel Bag Berm 0 As linear erosion control measure: Along the face and at grade breaks of exposed and erodible slopes to shorten slope length and spread runoff as sheet flow Limitations At the top of slopes to divert runoff away from disturbed slopes As check dams across mildly sloped construction roads 0 Gravel berms may be difficult to remove. 0 Removal problems limit their usefulness in landscaped areas. 0 Gravel bag berm may not be appropriate for drainage areas greater than 5 acres. O Runoff will pond upstream of the filter, possibly causing flooding if sufficient space does not exist. 0 Degraded gravel bags may rupture when removed, spilling contents. 0 Installation can be labor intensive. O Berms may have limited durability for long-term projects. O When used to detain concentrated flows, maintenance requirements increase. Implementation General A gravel bag berm consists of a row of open graded gravel-filled bags placed on a level contour. When appropriately placed, a gravel bag berm intercepts and slows sheet flow runoff, causing temporary ponding. The temporary ponding provides quiescent conditions allowing sediment to settle. The open graded gravel in the bags is porous, which allows the ponded runoff to flow slowly through the bags, releasing the runoff as sheet flows. Gravel bag berms 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. Gravel bag berms are similar to sand bag barriers, but are more porous. Design and Layout 0 Locate gravel bag berms on level contours. Slopes between 20:1 and 2:1 (H:V): Gravel bags should be placed at a maximum interval of 50 ft (a closer spacing is more effective), with the first row near the slope toe. Slopes 2:1 (H:V) or steeper: Gravel bags should be placed at a maximum interval of 25 ft (a closer spacing is more effective), with the first row placed the slope toe. 0 Turn the ends of the gravel bag barriers up slope to prevent runoff from going around the berm. 0 Allow sufficient space up slope from the gravel bag berm to allow ponding, and to provide room for sediment storage. 0 For installation near the toe of the slope, consider moving the gravel bag barriers away from the slope toe to facilitate cleaning. To prevent flows behind the barrier, bags can be placed perpendicular to a berm to serve as cross barriers. 0 Drainage area should not exceed 5 acres. 0 In Non-Traffic Areas: Height= 18 in. maximum Top width = 24 in. minimum for three or more layer construction Top width= 12 in. minimum for one or two layer construction Gravel Bag Benn BMP Document Construction Storm Water Management Plan 2 of4 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Gravel Bag Berm Side slopes= 2: 1 or flatter 0 In Construction Traffic Areas: Height= 12 in. maximum Top width = 24 in. minimum for three or more layer construction. Top width= 12 in. minimum for one or two layer construction. Side slopes= 2: I or flatter. 0 Butt ends of bags tightly 0 On multiple row, or multiple layer construction, overlapp butt joints of adjacent row and row beneath. 0 Use a pyramid approach when stacking bags. Materials 0 Bag Material: Bags should be woven polypropylene, polyethylene or polyamide fabric or burlap, minimum unit weight of 4 ounces/yd2, Mullen burst strength exceeding 300 lb/in2 in conformance with the requirements in ASTM designation D3786, and ultraviolet stability exceeding 70% in conformance with the requirements in ASTM designation D4355. O Bag Size: Each gravel-filled bag should have a length of 18 in., width of 12 in., thickness of 3 in., and mass of approximately 33 lbs. Bag dimensions are nominal, and may vary based on locally available materials. 0 Fill Material: Fill material should be 0.5 to 1 in. Class 2 aggregate base, clean and free from clay, organic matter, and other deleterious material, or other suitable open graded, non- cohesive, porous gravel. Costs Gravel filter: Expensive, since off-site materials, hand construction, and demolition/removal are usually required. Material costs for gravel bags are average of $2.50 per empty gravel bag. Gravel costs range from $20-$35 per yd3. Inspection and Maintenance 0 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. 0 Gravel bags exposed to sunlight will need to be replaced every two to three months due to degrading of the bags. 0 Reshape or replace gravel bags as needed. 0 Repair washouts or other damage as needed. 0 Sediment that accumulates in the BMP must be periodically removed in order to maintain BMP effectiveness. Sediment should be removed when the sediment accumulation reaches one-third of the barrier height. Sediment removed during maintenance may be incorporated into earthwork on the site or disposed at an appropriate location. 0 Remove gravel bag berms when no longer needed. Remove sediment accumulation and clean, re-grade, and stabilize the area. Removed sediment should be incorporated in the project or disposed of. Gravel Bag Berm BMP Document Construction Storm Water Management Plan 3 of4 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Gravel Bag Berm References Handbook of Steel Drainage and Highway Construction, American Iron and Steel Institute, 1983. Stormwater Quality Handbooks -Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. Stormwater Pollution Plan Handbook, First Edition, State of California, Department of Transportation Division ofNew Technology, Materials and Research, October 1992. California Storm Water Quality Association, California Storm Water BMP Handbook -Construction, January 2003. Gravel Bag Berm BMP Document Construction Storm Water Management Plan 4of4 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Storm Drain Inlet Protection Description and Purpose Storm drain inlet protection consists of a sediment filter or an impounding area around or upstream of a storm drain, drop inlet, or curb inlet. Storm drain inlet protection measures temporarily pond runoff before it enters the storm drain, allowing sediment to settle. Some filter configurations also remove sediment by filtering, but usually the ponding action results in the greatest sediment reduction. Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Potential Alternatives Silt Fence Fiber Rolls Gravel Bag Berm Sandbag Barrier Straw Bale Barrier Every storm drain inlet receiving sediment-laden runoff should be protected. Limitations 0 Drainage area should not exceed I acre. 0 Straw bales, while potentially effective, have not produced in practice satisfactory results, primarily due to improper installation. 0 Requires an adequate area for water to pond without encroaching into portions of the roadway subject to traffic. D Inlet protection usually requires other methods of temporary protection to prevent sediment- laden storm water and non-storm water discharges from entering the storm drain system. 0 Sediment removal may be difficult in high flow conditions or if runoff is heavily sediment laden. If high flow conditions are expected, use other onsite sediment trapping techniques in conjunction with inlet protection. Storm Drain Inlet Protection BMP Document Construction Storm Water Management Plan I of8 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Storm Drain Inlet Protection D Frequent maintenance is required. D For drainage areas larger than 1 acre, runoff should be routed to a sediment-trapping device designed for larger flows. D Excavated drop inlet sediment traps are appropriate where relatively heavy flows are expected, and overflow capability is needed. Implementation General Large amounts of sediment may enter the storm drain system when storm drains are installed before the upslope drainage area is stabilized, or where construction is adjacent to an existing storm drain. In cases of extreme sediment loading, the storm drain itself may clog and Jose a major portion of its capacity. To avoid these problems, it is necessary to prevent sediment from entering the system at the inlets. Inlet control measures presented in this handbook should not be used for inlets draining more than one acre. Runoff from larger disturbed areas should be first routed through a sediment basin or sediment trap. Different types of inlet protection are appropriate for different applications depending on site conditions and the type of inlet. Inlet protection methods not presented in this handbook should be approved by the local storm water management agency. Design and Layout Identify existing and planned storm drain inlets that have the potential to receive sediment-laden surface runoff. Determine if storm drain inlet protection is needed and which method to use. D Limit upstream drainage area to I acre maximum. For larger drainage areas, use a sediment basin, or a sediment trap, upstream of the inlet protection device. D The key to successful and safe use of storm drain inlet protection devices is to know where runoff will pond or be diverted. Determine the acceptable location and extent of ponding in the vicinity of the drain inlet. The acceptable location and extent of ponding will influence the type and design of the storm drain inlet protection device. Determine the extent of potential runoff diversion caused by the storm drain inlet protection device. Runoff ponded by inlet protection devices may flow around the device and towards the next downstream inlet. In some cases, this is acceptable; in other cases, serious erosion or downstream property damage can be caused by these diversions. The possibility of runoff diversions will influence whether or not storm drain inlet protection is suitable; and, if suitable, the type and design of the device. D The location and extent of ponding, and the extent of diversion, can usually be controlled through appropriate placement of the inlet protection device. In some cases, moving the inlet protection device a short distance upstream of the actual inlet can provide more efficient sediment control, limit ponding to desired areas, and prevent or control diversions. D Four types of inlet protection are presented below. However, it is recognized that other effective methods and proprietary devices exist and may be selected. Filter Fabric Fence: Appropriate for drainage basins with less than a 5% slope, sheet flows, and flows under 0.5 cfs. Excavated Drop Inlet Sediment Trap: An excavated area around the inlet to trap sediment. Storm Drain Inlet Protection BMP Document Construction Storm Water Management Plan 2 of8 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Storm Drain Inlet Protection Gravel bag barrier: Used to create a small sediment trap upstream of inlets on sloped, paved streets. Appropriate for sheet flow or when concentrated flow may exceed 0.5 cfs, and where overtopping is required to prevent flooding. Block and Gravel Filter: Appropriate for flows greater than 0.5 cfs. D Select the appropriate type of inlet protection and design as referred to or as described in this fact sheet. D Provide area around the inlet for water to pond without flooding structures and property. D Grates and spaces around all inlets should be sealed to prevent seepage of sediment-laden water. D Excavate sediment sumps (where needed) I to 2 ft with 2: I side slopes around the inlet. Installation D DI Protection Type 1 -Filter Fabric Fence -The filter fabric fence (Type I) protection is shown in the attached figure. Similar to constructing a silt fence. Do not place filter fabric underneath the inlet grate since the collected sediment may fall into the drain inlet when the fabric is removed or replaced. I. Excavate a trench approximately 6 in. wide and 6 in. deep along the line of the silt fence inlet protection device. 2. Place 2 in. by 2 in. wooden stakes around the perimeter of the inlet a maximum of 3 ft apart and drive them at least 18 in. into the ground or 12 in. below the bottom of the trench. The stakes must be at least 48 in. 3. Lay fabric along bottom of trench, up side of trench, and then up stakes. The maximum silt fence height around the inlet is 24 in. 4. Staple the filter fabric to wooden stakes. Use heavy-duty wire staples at least I in. in length. 5. Backfill the trench with gravel or compacted earth all the way around. D DI Protection Type 2 -Excavated Drop Inlet Sediment Trap -The excavated drop inlet sediment trap (Type 2) is shown in the attached figures. Install filter fabric fence in accordance with DI Protection Type I. Size excavated trap to provide a minimum storage capacity calculated at the rate 67 yd'/acre of drainage area. D DI Protection Type 3 -Gravel bag -The gravel bag barrier (Type 3) is shown in the figures. Flow from a severe storm should not overtop the curb. In areas of high clay and silts, use filter fabric and gravel as additional filter media. Construct gravel bags in accordance with gravel bag berm guidelines. Gravel bags should be used due to their high permeability. I. Use sand bag made of geotextile fabric (not burlap) and fill with 0.75 in. rock or 0.25 in. pea gravel. 2. Construct on gently sloping street. 3. Leave room upstream of barrier for water to pond and sediment to settle. 4. Place several layers of sand bags -overlapping the bags and packing them tightly together. 5. Leave gap of one bag on the top row to serve as a spillway. Flow from a severe storm (e.g., I 0 year storm) should not overtop the curb. D DI Protection Type 4 -Block and Gravel Filter -The block and gravel filter (Type 4) is shown in the figures. Block and gravel filters are suitable for curb inlets commonly used in residential, commercial, and industrial construction. Storm Drain Inlet Protection BMP Document Construction Storm Water Management Plan 3 of8 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Costs Storm Drain Inlet Protection I. Place hardware cloth or comparable wire mesh with 0.5 in. openings over the drop inlet so that the wire extends a minimum of I ft beyond each side of the inlet structure. If more than one strip is necessary, overlap the strips. Place filter fabric over the wire mesh. 2. Place concrete blocks lengthwise on their sides in a single row around the perimeter of the inlet, so that the open ends face outward, not upward. The ends of adjacent blocks should abut. The height of the barrier can be varied, depending on design needs, by stacking combinations of blocks that are 4 in., 8 in., and 12 in. wide. The row of blocks should be at least 12 in. but no greater than 24 in. high. 3. Place wire mesh over the outside vertical face (open end) of the concrete blocks to prevent stone from being washed through the blocks. Use hardware cloth or comparable wire mesh with 0.5 in. opening. 4. Pile washed stone against the wire mesh to the top of the blocks. Use 0.75 to 3 in. D Average annual cost for installation and maintenance (one year useful life) is $200 per inlet. Inspection and Maintenance D 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. D Filter Fabric Fences. If the fabric becomes clogged, torn, or degrades, it should be replaced. Make sure the stakes are securely driven in the ground and are in good shape (i.e., not bent, cracked, or splintered, and are reasonably perpendicular to the ground). Replace damaged stakes. D Gravel Filters. If the gravel becomes clogged with sediment, it must be carefully removed from the inlet and either cleaned or replaced. Since cleaning gravel at a construction site may be difficult, consider using the sediment-laden stone as fill material and put fresh stone around the inlet. Inspect bags for holes, gashes, and snags, and replace bags as needed. Check gravel bags for proper arrangement and displacement. D Sediment that accumulates in the BMP must be periodically removed in order to maintain BMP effectiveness. Sediment should be removed when the sediment accumulation reaches one-third of the barrier height. Sediment removed during maintenance may be incorporated into earthwork on the site ore disposed at an appropriate location. D Remove storm drain inlet protection once the drainage area is stabilized. Clean and regrade area around the inlet and clean the inside of the storm drain inlet as it must be free of sediment and debris at the time of final inspection. References Stormwater Quality Handbooks -Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. Stormwater Management Manual for The Puget Sound Basin, Washington State Department of Ecology, Public Review Draft, 1991. California Storm Water Quality Association, California Storm Water BMP Handbook-Construction, January 2003. Stonn Drain Inlet Protection BMP Document Construction Stonn Water Management Plan 4 of8 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Storm Drain Inlet Protection 24"± Geotextile Blanket {Silt rDrotn ,-----~· inlet x '//'J/P«(?;:'Y~-W-~" %-Y~~4'· SECTION A-A Fence per SE-01 f 5" Min ,-x x---·---x x f overlap at ends x ···-. -. lY of silt fence I I x ~~:_I -• -~ -Drain inlet 11 x _--__-I X Aj ~ -·-~ Geotextile Blanket Sheet flow I j t 1---Silt Fence per SE-01 x Less than I 1 acre xL ___ _ ~ 0 ~/ '-0 PLAN " " \ 5 0 \£ NOTES DI PROTECTIO~J TYPE NOT TO SCAI_[ For use in areas where grading hos been co111pleted and finoi soil stabilization and seeding ore pending. 2. Not applicable in paved areas. 3. Not applicable with concentrated flows Storm Drain InJet Protection BMP Document Construction Storm Water Management Plan 5 of8 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Storm Drain Inlet Protection I Stabilize area and grade uniformly around perimeter Geotextile Blanket 1. 1 slope ---------, x f--silt x fence Per SE-01 11-~ 3 Min 12" Min ~<-:((/'t ___t__24" Max !>:_ l . . p ---£,(, w_-::;: Drain inlet >>?<~0>,=~o.I Note: ~>:};;,~ Remove sediment before reaching one-third full. Section A-A Concentrated I /-Rock filter(use if flow flow J ///.,, is concentrated) Ix x-~ x---, X r-~=----' I ,------------------.;lx I ,----- 1 i t ' lA -x x A Edge of sedin1ent trap Droin inlet Sheet flow I ---1 : ---··-----------i Xii :--: -~ ~lot es I I -I J I t I ' ' ! i ' x Geotext1·1 J I I I ' C I b L -I I ~Blanket I I ------I I iC X L ----_ _J I '::?/o I l -----------1 Silt fenc Lx - _ _ 1 e ~ . ----~ fl x x--x--' fll on \<fl DI -~ 2 ~j PROTECTION TYPE NOT TO SCALE 1 Fo1· use in cleared and grubbed and in graded ureos. Per SE-01 2. Shape basin so that longest inflow area faces longest length of trap 3_ For concentrated flows, shape basin in 2: 1 r·atio with length oriented towards direction of flow. Stonn Drain Inlet Protection BMP Document Construction Stonn Water Management Plan 6 of8 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Storm Drain Inlet Protection r Edge o~Povemen\ Flow / /// I I'\.'\.'\. \ Flow "-- Spillway, 1-bog high \_Sandbags 2-bogs high TYPICAL PROTECTION FOR INLET ON SUMP (''" "''"''[;;ti\ Spillway, 1-bog high Flow ~. \_Sandbags 2-bogs high TYPICAL_ PROTECTION FOR INLET ON GRADE NOTES 1 Intended for short_-term use. 2 Use to inhibit non-storm water flow 3 Allow for proper maintenance and cleanup 4 Bags must be removed ofter adjacent operation is completed 5 Not applicable in areas with high silts and cloys without filter fabric DI PROTECTION TYPE J NOT TO SCALE ·-- Storm Drain Inlet Protection BMP Document Construction Storm Water Management Plan 7 of8 Cordi//eran Compliance Services, Inc. Grand Junction, Colorado Storm Drain Inlet Protection ~ Curb inlet ~ ------------ ,,, ,,, =-------------------~ ~ '~' '~~ 11111111111 I !Ill I I ll\;\l lllll ! 11111111 =----=-1'FT"'i~ °' °' "F7--'ff-Y ,Nl~'!--. ~ ~ --------------- Concrete block laid lengthwise on sides @ perimeter of opening d . ent with se im ~ ". -=-------- Hardware cloth or wire mesh ~ r f--ilter-ed vvater ~~~"!{: ~'0.<{.::-_'0-Y?"""i~/ " 11:;:><1/ -3f~~ -"u>bo~~f-c=;==t,=--;--" . "., .; .,, '/,' ~' . . . " /, ~ '~--~ , . ~\\\\\\~~f ~%~%%%~4< >»?,»0'§%,-i§/!;-,'' . ''Y•,/;::<<,;;'Si. '''' ''. '>%o'«~• • .• . .. ,,":Yx Sediment //,,~ \____Hardware cloth wire mesh DI PROTECTION Storm Drain Inlet Protection BMP Document Construction Storm Water Management Plan r" 0 T TO SCALE 8 of8 ·" " '· TYPE 4 ~~~~~/ '"if1:::-~'<~~<Y ~«,~~:(( ~~~ q ~~~~ ~~ :;>' Curb inlet Cordilleran Compliance Services, inc. Grand Junction, Colorado Stabilized Construction Entrance/Exit Description and Purpose A stabilized construction access is defined by a point of entrance/exit to a construction site that is stabilized to reduce the tracking of mud and dirt onto public roads by construction vehicles. Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Use at construction sites: D Where dirt or mud can be tracked onto public roads. D Adjacent to water bodies. D Where poor soils are encountered. Potential Alternatives None D Where dust is a problem during dry weather conditions. Limitations D Entrances and exits require periodic top dressing with additional stones. D This BMP should be used in conjunction with street sweeping on adjacent public right of way. D Entrances and exits should be constructed on level ground only. D Stabilized construction entrances are rather expensive to construct and when a wash rack is included, a sediment trap of some kind must also be provided to collect wash water runoff. Stabilized Construction Entrance/Exit BMP Document 1 of 5 Cordilleran Compliance Services. Inc. Construction Storm Water Management Plan Grand Junction, Colorado Stabilized Construction Entrance/Exit Implementation General A stabilized construction entrance is a pad of aggregate underlain with filter cloth located at any point where traffic will be entering or leaving a construction site to or from a public right of way, street, alley, sidewalk, or parking area. The purpose of a stabilized construction entrance is to reduce or eliminate the tracking of sediment onto public rights of way or streets. Reducing tracking of sediments and other pollutants onto paved roads helps prevent deposition of sediments into local storm drains and production of airborne dust. Where traffic will be entering or leaving the construction site, a stabilized construction entrance should be used. NPDES permits require that appropriate measures be implemented to prevent tracking of sediments onto paved roadways, where a significant source of sediments is derived from mud and dirt carried out from unpaved roads and construction sites. Stabilized construction entrances are moderately effective in removing sediment from equipment leaving a construction site. The entrance should be built on level ground. Advantages of the Stabilized Construction Entrance/Exit is that it does remove some sediment from equipment and serves to channel construction traffic in and out of the site at specified locations. Efficiency is greatly increased when a washing rack is included as part of a stabilized construction entrance/exit. Design and Layout D Construct on level ground where possible. D Select 3 to 6 in. diameter stones. D Use minimum depth of stones of l 2 in. or as recommended by soils engineer. D Construct length of 50 ft minimum, and 30 ft minimum width. D Rumble racks constructed of steel panels with ridges and installed in the stabilized entrance/exit will help remove additional sediment and to keep adjacent streets clean. D Provide ample turning radii as part of the entrance. D Limit the points of entrance/exit to the construction site. D Limit speed of vehicles to control dust. D Properly grade each construction entrance/exit to prevent runoff from leaving the construction site. D Route runoff from stabilized entrances/exits through a sediment trapping device before discharge. D Design stabilized entrance/exit to support heaviest vehicles and equipment that will use it. D Select construction access stabilization (aggregate, asphaltic concrete, concrete) based on longevity, required performance, and site conditions. Do not use asphalt concrete (AC) grindings for stabilized construction access/roadway. D If aggregate is selected, place crushed aggregate over geotextile fabric to at least 12 in. depth, or place aggregate to a depth recommended by a geotechnical engineer. A crushed aggregate greater than 3 in. but smaller than 6 in. should be used. D Designate combination or single purpose entrances and exits to the construction site. D Require that all employees, subcontractors, and suppliers utilize the stabilized construction access. D Implement street sweeping and vacuuming, as needed. 0 All exit locations intended to be used for more than a two-week period should have stabilized construction entrance/exit BMPs. Stabilized Construction Entrance/Exit BMP Document 2 of5 Cordilleran Compliance Services, Inc. Construction Stonn Water Management Plan Grand Junction, Colorado Stabilized Construction Entrance/Exit Inspection and Maintenance D Inspect and verify that activity-based BMPs are in place prior to the commencement of associated activities. While activities associated with the BMPs are under way, inspect weekly during the rainy season and of two-week intervals in the non-rainy season to verify continued BMP implementation. D Inspect local roads adjacent to the site daily. Sweep or vacuum to remove visible accumulated sediment. D Remove aggregate, separate and dispose of sediment if construction entrance/exit is clogged with sediment. D Keep all temporary roadway ditches clear. D Check for damage and repair as needed. D Replace gravel material when surface voids are visible. D Remove all sediment deposited on paved roadways within 24 hours. D Remove gravel and filter fabric at completion of construction Costs Average annual cost for installation and maintenance may vary from $1,200 to $4,800 each, averaging $2,400 per entrance. Costs will increase with addition of washing rack, and sediment trap. With wash rack, costs range from $1,200 -$6,000 each, averaging $3,600 per entrance. References Manual of Standards of Erosion and Sediment Control Measures, Association of Bay Area Governments, May 1995. National Management Measures to Control Nonpoint Source Pollution from Urban Areas, USEPA Agency, 2002. Proposed Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters, Work Group Working Paper, USEPA, April 1992. Stormwater Quality Handbooks Construction Site Best Management Practices (BMPs) Manual, State of Cal ifomia Department of Transportation (Caltrans ), November 2000. Stormwater Management of the Puget Sound Basin, Technical Manual, Publication #91-75, Washington State Department of Ecology, February 1992. Virginia Erosion and Sedimentation Control Handbook, Virginia Department of Conservation and Recreation, Division of Soil and Water Conservation, 1991. Guidance Specifying Management Measures for Nonpoint Pollution in Coastal Waters, EPA 840-B- 9-002, USEPA, Office of Water, Washington, DC, 1993. Water Quality Management Plan for the Lake Tahoe Region, Volume II, Handbook of Management Practices, Tahoe Regional Planning Agency, November 1988. California Stonn Water Quality Association, California Storm Water BMP Handbook-Construction, January 2003. Stabilized Construction Entrance/Exit BMP Document 3 of 5 Cordilleran Compliance Services, Inc. Construction Storrn Water Management Plan Grand Junction, Colorado Stabilized Construction Entrance/Exit :r <( s 0 <( 01 Q_ 0 w > <( Q_ ('.) ::::; I f- Vl x w Crushed aggregate greater than 3" ~but smaller than 5" 0 0 0 u 0 Original I ~ilter fabric ACJo&ap&,b'§'Q:~Li_ade L 12 " Min, unless otherwise specified by a soils engineer ~t SECTIOl,J B-B l~TS l~OTE ;70 }J o I ;: Construct sedin1ent barrier and channelize runoff to :-.;ediment troppi11g device } Ov "' B ;tcci 0 ~ ; Q;;lYvc.-"-_, · _ ~ ~~J:5Sa~~~~~~&;~J op -§~ Twidth as ; 0~6J2,0D~CJ)-8'1JDo~y§>0D 0i)ScQ8ms0 ~8'1JD~~g'bD J,ig'bDos; _liequ ired to /D8'bDo~~ miefl a 00D Wc@~a ~a, occomodote ~ oo'Qo p '5~0 oQ5.~ff5 ;!:/Jc anticipated o oc o o oo B'tf--6'0c oo OOo o ._)'c:j . ; cs0oo[loC)('\Oo[lr[\r oDoCl\\\Vo\jQ\ 'D o[)oC)\\9oDoC\DOoD Soo[Jo\\1 traffic } QQ'-fgQ:;9'6Qo ,;;-(JM o ,.-ifn'6Qo nn:'lo90 ,--,o:i&!O ,--,X'lo90 ,.--., o90 ,.,-.,{'tf -\ ;Qr ;1 Temporoiy pipe culvert as needed ~ 50' Min or four times the circurnference B Match Existing Grade of the largest construction vehicle tire, whichever is greater Plfl~j r:ns __ _ Stabilized Construction Entrance/Exit BMP Document 4 of 5 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Stabilized Construction Entrance/Exit NOTE Crushed aggregate greater than 3" but smaller than 6" Filter fabric Original /o\ IU\J\li5'b\J~\J0'0' ,~~ r grade i ~1 oo"-'011 soils engineer SECTION 8-8 NTS Crushed aggregate greater than J" but smaller than 5". Corrugated steel panels p;zuu;;·-Original ~cc~~grade 12" Min, unless otherwise specified by a soils engineer 'Filter fabric SECTION A-A NOT TO SCALE Construct sediment barrier and channelize runoff to sediment trapping device [I1 Sedirnent trapping device >- <{ s 0 <{ 0 (l'. 0 w > <{ Q_ (') z f-= if' >< w ~·~ I' "- B _rn in 1 1( s~o· ~m,~n --,--- or four times the circumference of the largest construction vehicle tire, whichever is greater Match Existing Grode PLAN NTS Stabilized Construction Entrance/Exit BMP Document 5 of 5 Cordilleran Compliance Services, Inc. Construction Storm Water Management Plan Grand Junction, Colorado Stabilized Construction Roadway Description and Purpose Access roads, subdivision roads, parking areas, and other onsite vehicle transportation routes should be stabilized immediately after grading, and frequently maintained to prevent erosion and control dust. Targeted Constituents Sediment Potential Alternatives None Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications This BMP should be applied for the following conditions: D Temporary Construction Traffic: Phased construction projects and offsite road access Construction during wet weather D Construction roadways and detour roads: Limitations Where mud tracking is a problem during wet weather Where dust is a problem during dry weather Adjacent to water bodies Where poor soils are encountered D The roadway must be removed or paved when construction is complete. D Certain chemical stabilization methods may cause storm water or soil pollution and should not be used. Stabilized Construction Roadway BMP Document Construction Storm Water Management Plan I of3 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Stabilized Construction Roadway D Management of construction traffic is subject to air quality control measures. Contact the local air quality management agency. D Materials will likely need to be removed prior to final project grading and stabilization. D Use of this BMP may not be applicable to very short duration projects. Implementation General Areas that are graded for construction vehicle transport and parking purposes are especially susceptible to erosion and dust. The exposed soil surface is continually disturbed, leaving no opportunity for vegetative stabilization. Such areas also tend to collect and transport runoff waters along their surfaces. During wet weather, they often become muddy quagmires that generate significant quantities of sediment that may pollute nearby streams or be transported offsite on the wheels of construction vehicles. Dirt roads can become so unstable during wet weather that they are virtually unusable. Efficient construction road stabilization not only reduces onsite erosion but also can significantly speed onsite work, avoid instances of immobilized machinery and delivery vehicles, and generally improve site efficiency and working conditions during adverse weather Installation/Application Criteria Permanent roads and parking areas should be paved as soon as possible after grading. As an alternative where construction will be phased, the early application of gravel or chemical stabilization may solve potential erosion and stability problems. Temporary gravel roadway should be considered during the rainy season and on slopes greater than 5%. Temporary roads should follow the contour of the natural terrain to the maximum extent possible. Slope should not exceed 15%. Roadways should be carefully graded to drain transversely. Provide drainage swales on each side of the roadway in the case of a crowned section or one side in the case of a super elevated section. Simple gravel berms without a trench can also be used. Installed inlets should be protected to prevent sediment laden water from entering the storm sewer system. In addition, the following criteria should be considered. D Road should follow topographic contours to reduce erosion of the roadway. D The roadway slope should not exceed 15%. D Chemical stabilizers or water are usually required on gravel or dirt roads to prevent dust D Properly grade roadway to prevent runoff from leaving the construction site. D Design stabilized access to support heaviest vehicles and equipment that will use it. D Stabilize roadway using aggregate, asphalt concrete, or concrete based on longevity, required performance, and site conditions. The use of cold mix asphalt or asphalt concrete (AC) grindings for stabilized construction roadway is not allowed. D Coordinate materials with those used for stabilized construction entrance/exit points. D If aggregate is selected, place crushed aggregate over geotextile fabric to at least 12 in. depth. A crushed aggregate greater than 3 in. but smaller than 6 in. should be used. Stabilized Construction Roadway BMP Document Construction Storm Water Management Plan 2 of3 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Stabilized Construction Roadway Inspection and Maintenance D Inspect and verify that activity-based BMPs are in place prior to the commencement of associated activities. While activities associated with the BMP are under way, impact weekly during the rainy season and of two-week intervals in the non-rainy season to verify continued BMP implementation. D Keep all temporary roadway ditches clear. D When no longer required, remove stabilized construction roadway and re-grade and repair slopes. D Periodically apply additional aggregate on gravel roads. D Active dirt construction roads are commonly watered three or more times per day during the dry season. Costs Gravel construction roads are moderately expensive, but cost is often balanced by reductions in construction delay. No additional costs for dust control on construction roads should be required above that needed to meet local air quality requirements. References Blueprint for a Clean Bay: Best Management Practices to Prevent Stormwater Pollution from Construction Related Activities; Santa Clara Valley Nonpoint Source Pollution Control Program, 1995. Coastal Nonpoint Pollution Control Program; Program Development and Approval Guidance, Working Group, Working Paper; USEPA, April 1992. Manual of Standards of Erosion and Sediment Control Measures, Association of Bay Area Governments, May 1995. Stormwater Quality Handbooks Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. Stormwater Management for Construction Activities, Developing Pollution Prevention Plans and Best Management Practices, EPA 832-R-92005; USEPA, April 1992. Stormwater Management of the Puget Sound Basin, Technical Manual, Publication #91-75, Washington State Department of Ecology, February 1992. Virginia Erosion and Sedimentation Control Handbook, Virginia Department of Conservation and Recreation, Division of Soil and Water Conservation, 1991. Water Quality Management Plan for the Lake Tahoe Region, Volume II, Handbook of Management Practices, Tahoe Regional Planning Agency, November 1988. California Storm Water Quality Association, California Storm Water BMP Handbook-Construction, January 2003. Stabilized Construction Roadway BMP Document Construction Stonn Water Management Plan 3 of3 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Entrance/Outlet Tire Wash (ll-. . "'o"' .· 1'flvCi · . . . _,9 . c,or ,..,,c Description and Purpose ~~"!.._,,,, @:'~ ~.....___ A tire wash is an area located at stabilized construction access points to remove sediment from tires and under carriages and to prevent sediment from being transported onto public roadways. Targeted Constituents Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics Suitable Applications Potential Alternatives Stabilized Construction Entrance/Exit Tire washes may be used on construction sites where dirt and mud tracking onto public roads by construction vehicles may occur. Limitations D The tire wash requires a supply of wash water. D A turnout or doublewide exit is required to avoid having entering vehicles drive through the wash area. D Do not use where wet tire trucks leaving the site leave the road dangerously slick. Implementation D Incorporate with a stabilized construction entrance/exit. D Construct on level ground when possible, on a pad of coarse aggregate greater than 3 in. but smaller than 6 in. A geotextile fabric should be placed below the aggregate. 0 Wash rack should be designed and constructed/manufactured for anticipated traffic loads. Entrance/Outlet Tire Wash B:rvfi> Document Construction Stonn Water Management Plan I of3 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Entrance/Outlet Tire Wash D Provide a drainage ditch that will convey the runoff from the wash area to a sediment trapping device. The drainage ditch should be of sufficient grade, width, and depth to carry the wash runoff. D Use hoses with automatic shutoff nozzles to prevent hoses from being left on. D Require that all employees, subcontractors, and others that leave the site with mud caked tires and undercarriages to use the wash facility. Costs Costs are low for installation of wash rack. Inspection and Maintenance D Inspect and verify that activity-based BMPs are in place prior to the commencement of associated activities. While activities associated with the BMP are under way, inspect weekly during the rainy season and of two-week intervals in the non-rainy season to verify continued BMP implementation. D Inspect BMPs subject to non-stormwater discharge daily while non-stormwater discharges occur. D Remove accumulated sediment in wash rack and/or sediment trap to maintain system performance. D Inspect routinely for damage and repair as needed. References Blueprint for a Clean Bay: Best Management Practices to Prevent Stormwater Pollution from Construction Related Activities; Santa Clara Valley Nonpoint Source Pollution Control Program, 1995. Coastal Nonpoint Pollution Control Program; Program Development and Approval Guidance, Working Group, Working Paper; USEPA, April 1992. Manual of Standards of Erosion and Sediment Control Measures, Association of Bay Area Governments, May 1995. Stormwater Quality Handbooks Construction Site Best Management Practices (BMPs) Manual, State of California Department of Transportation (Caltrans), November 2000. Stormwater Management for Construction Activities, Developing Pollution Prevention Plans and Best Management Practices, EPA 832-R-92005; USEPA, April I 992. California Storm Water Quality Association, California Storm Water BMP Handbook-Construction, January 2003. Entrance/Outlet Tire Wash BI\fl> Document Construction Storm Water Management Plan 2 of3 Cordilleran Compliance Services, Inc. Grand Junction, Colorado Entrance/Outlet Tire Wash Crushed aggregate greater than 3" but smaller than 6". Corrugated steel panels 0 .. I J,!fUUUUULj UUUUULSLSLfl.JUUUU! d; r1g1na J'.JXO(]S';;:( J0.UfilA( JXOffi~( JXOOS>;;:\ JX009;;'( JXOns>;n JX th g rode 12" Min, unless otherwise specified by a soils engineer Filter fabric NOTE. SECTION A-A NOT TO SCALE Crushed aggregate greater than 3" but smaller than 5·· Filter fabric Min, unless otherwise specified by a soils engineer SECTION B-B NTS / o"'o~ Original _<LO de ~00 / ,l,( 0~~e0 ooe--...__ \ e;' ' . .;J'C; / e"''"' Ditch to carry runoff \ to o sediment trapping device ~// ~:-,,./ _./ ~o'c'0 Many designs con be field fabricated, or fabricated units rnay be used ~ / Water supply & hose_,/ TYPICAL TIRE WASH --f'.jQT TO SCALI~ B Entrance/Outlet Tire Wash BMP Document Construction Storm Water Management Plan 3 of3 Cordilleran Compliance Services, Inc. Grand Junction, Colorado PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 23-Response letter regarding Development Plan Review Standards and Criteria for Approval. 9.07.06 Please find below a response to each of the checklist items that are required to be reviewed by the Garfield County Building and Planning Department. A. Right-of-way locations related to perimeters of surface property ownerships. 9.07.06 (1) Please see Tab 2-Vicinity Map-9.07.04 (I) B. Colorado Oil and Gas Conservation Commission Rules and Regulations, Section 802, Noise Abatement. 9.07.06 (2) Please see attached a copy of Section 802 of the COGCC Rules and Regulations. Please refer to 802 b. "Operations involving pipeline or gas facility installation or maintenance .... is subject to the maximum permissible noise levels for industrial zones". Industrial 7 a.m. -7 p.m. 80 db(A) and 7 p.m to 7 a.m. 75 db(A). We will follow the COGCC regulations in regards to this rule 802. C. Minimize visual impact and disturbance of the land surface. 9.07.06 (3) We have located the new 30" line in existing, disturbed right-of- way to limit surface disturbance to previously disturbed areas. D. Access Points to public roads. 9.07.06 (4) Please see Tab 16-Traffic Impact-9.07.04 (15) Page I of3 E. Impact on endangered species. 9.07.06 (5) Please see Tab 11-Sensitive Area Survey-9.07.04 (10) F. Air contaminant emissions. 9.07.06 (6) Bargath, Inc. agrees to meet the control provisions set forth by the Colorado Air Quality Control Program, Title 25, Article 7, C.R.S. Jerry Alberts-Williams Production RMT Permitting Specialist, determined that a fugitive dust permit is not required for this project because of the limited duration of the project. G. Compliance with Colorado State Public Health and Environment, Water Quality Control standards. 9.07.06 (7) Please see Tab 7-Regulatory Permit Requirements-9.07.04 (6). Bargath, Inc. is required to apply for and receive a CDPS permit from the CDPHE for the project. H. Compliance with Garfield County Individual Sewage Disposal System regulations. 9.07.06 (8) There will not be ISDS installed at this project. Please see Tab 22- Construction Management Plan Section 5.11 Waste Disposal and sanitation to note the use of portable chemical toilets for human waste during the construction of the pipeline. I. Reclamation plan. 9.07.06 (9) Please see Tab 13-Revegetation Plan-9.07.04 (12) J. Abandoned pipeline removal. 9.07.06 (10) Abandoned pipeline will be abandoned as per the most current Colorado Oil & Gas Conservation Commission regulations at the time of abandonment. Page 2 of3 Please contact me with any questions. Sincerely, ~~~ Philip B. Vaughan President PVCMI Page 3 of3 AESTHETIC AND NOISE CONTROL REGULATIONS 801. INTRODUCTION The rules and regulations in this section are promulgated to control aesthetics and noise impacts during the drilling, completion and operation of oil and gas wells and production facilities. Any Colorado county, home rule or statutory city, town, territorial charter city or city and county may, by application to the Commission, seek a determination that the rules and regulations in this section, or any individual rule or regulation, shall not apply to oil and gas activities occurring within the boundaries, or any part thereof, of any Colorado county, home rule or statutory city, town, territorial charter city or city and county, such determination to be based upon a showing by any Colorado county, home rule or statutory city, town, territorial charter city or city and county that, because of conditions existing therein, the enforcement of these rules and regulations is not necessary within the boundaries of any Colorado county, home rule or statutory city, town, territorial charter city or city and county for the protection of public health, safety and welfare. 802. NOISE ABATEMENT a. The goal of this rule is to identify noise sources related to oil and gas operations that impact surrounding landowners and to implement cost-effective and technically-feasible mitigation measures to bring oil and gas facilities into compliance with the allowable noise levels identified in subsection c. Operators should be aware that noise control is most effectively addressed at the siting and design phase, especially with respect to centralized compression and other downstream "gas facilities" (see definition in the 100 Series of these rules). I b. Oil and gas operations at any well site, production facility or gas facility, shall comply with the following ~ maximum permissible noise levels. Operations involving pipeline or gas facility installation or majntenance the 11se of --" drilling rig, completion rig, workover rig, or stimulation is subject to the maximum permissible noise levels for industnai zones. I he type of land use of the surrounding area shall be determined by the Commission in consultation with the local governmental designee taking into consideration any applicable zoning or other local land use designation. c. In the hours between 7:00 a.m. and the next 7:00 p.m. the noise levels permitted below may be increased ten (10) db(A) for a period not to exceed fifteen (15) minutes in any one (1) hour period. The allowable noise level for periodic, impulsive or shrill noises is reduced by five (5) db(A) from the levels shown. ZONE 7:00 am to next 7:00 pm 7:00 pm to next 7:00 am Residential/Agricultural/Rural 55 db(A) 50 db(A) Construction commencing after January 1, 2007: 50db(A) 45 db(A) Commercial Light industrial _Industrial 60 db(A) 55 db(A) 70 db(A) 65 db(A) 80 db(Al__ _ __ 75 db(A) In remote locations, where there is no reasonably proximate occupied structure or designated outside activity area, the light industrial standard may be applicable. Pursuant to Commission inspection or upon receiving a complaint from a nearby property owner or local governmental designee regarding noise related to oil and gas operations, the Commission shall conduct an onsite investigation and take sound measurements as prescribed herein. The following provide guidance for the measurement of sound levels and assignment of points of compliance for oil and gas operations: 800-1 (1) Sound levels shall be measured at a distance of three hundred and fifty (350) feet from the noise source. At the request of the complainant, the sound level shall also be measured at a point beyond three hundred fifty (350) feet that the complainant believes is more representative of the noise impact. If an oil and gas well site, production facility or gas facility is installed closer than three hundred fifty (350) feet from an existing occupied structure, sound levels shall be measured at a point twenty-five (25) feet from the structure towards the noise source. Noise levels from oil and gas facilities located on surface property owned, leased or otherwise controlled by the operator shall be measured at three hundred and fifty (350) feet or at the property line, whichever is greater_ In situations where measurement of noise levels at three hundred and fifty (350) feet is impractical or unrepresentative due to topography, the measurement may be taken at a lesser distance and extrapolated to a 350-foot equivalent using the following formula: db(A)DISTANCE 2 = db(A)DISTANCE 1 -20 x log10(distance 2/distance 1) as of January 30. 2006 (2) Sound level meters shall be equipped with wind screens, and readings taken when the wind velocity at the time and place of measurement is not more than five (5) miles per hour. (3) Sound level measurements shall be taken four (4) feet above ground level. (4) Sound levels shall be determined by averaging minute-by-minute measurements made over a minimum fifteen (15) minute sample duration if practicable. The sample shall be taken under conditions that are representative of the noise experienced by the complainant (e.g., at night, morning, evening, or during special weather conditions). (5) In all sound level measurements, the existing ambient noise level from all other sources in the encompassing environment at the time and place of such sound level measurement shall be considered to determine the contribution to the sound level by the oil and gas operation(s). d. In situations where the complaint or Commission onsite inspection indicates that low frequency noise is a component of the problem, the Commission shall obtain a sound level measurement twenty-five (25) feet from the exterior wall of the residence or occupied structure nearest to the noise source, using a noise meter calibrated to the db(C) scale. If this reading exceeds 65 db(C), the Commission shall require the operator to obtain a low frequency noise impact analysis by a qualified sound expert, including identification of any reasonable control measures available to mitigate such low frequency noise impact. Such study shall be provided to the Commission for consideration and possible action. e. Exhaust from all engines, motors, coolers and other mechanized equipment shall be vented in a direction away from all occupied buildings. f. All facilities within four hundred (400) feet of occupied buildings with engines or motors which are not electrically operated shall be equipped with quiet design mufflers or equivalent. All mufflers shall be prope~y installed and maintained in proper working order. 803. LIGHTING To the extent practicable, site lighting shall be directed downward and internally so as to avoid glare on public roads and occupied buildings within seven hundred (700) feet. 804. VISUAL IMPACT MITIGATION Production facilities constructed or substantially repainted after May 30, 1992 which are observable from any public highway shall be painted with uniform, non-contrasting, non-reflective color tones, (similar to the Munsell Soil Color Coding System) and with colors matched to but slightly darker than the surrounding landscape. 800-2 as of January 30, 2006 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 24. Contact person for Williams Production RMT Co. for Garfield Couuty to contact for Garfield County inspection. 9.07.11 Bargath, Inc.-Authorized Representative and Project Manager Mr. Tom Fiore P.O. Box370 Parachute, CO 81635 Phone:970-263-2743 Cell Phone: 970-210-1641 Email: tom.fiore@williams.com Please contact me with any questions. Sincerely, ~~-= Philip B. Vaughan President PVCMI Page I of I PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@direcway.com Project: Cottonwood Compressor Station to Parachute Creek Gas Plant Gathering Line. Submittal Item Tab 25. Colorado Professional Engineer responsible for statement and certification of project, including a digital copy of the surveyed pipeline as-built. 9.07.11 DR Griffin & Associates, Inc.-Project Designer and Surveyor Mr. Larry Bodyfelt, PELS Engineering Manager D. R. Griffin & Associates, Inc. Professional Engineers & Land Surveyors 1414 Elk Street, Suite 202 Rock Springs, WY 82901 Phone:307-362-5028 Fax: 307-362-1056 Cell: 307-389-0371 Email: lbodyfelt@drg-wy.com Mr. Bodyfelt and his staff will prepare the information noted in 9 .07 .11. Please contact me with any questions. Sincerely, ~~ Philip B. Vaughan President PVCMI Page I of I