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1.6 Application Part 7
Garfield County, Colorado Assessor's Office in si. sneel, Aar. .e/, cbnwdsptr1 Co a,6a, 57.945141 dw..r�ad.e..y.... Legend US Fano Service S„bdni.ioe Tae District Boeedary Ae PM f. Stan, Federal xirb..y *V Cann Rod ,fieri' Private Rea, TNI R Lead Gate i Gn Well BLM OMB Cee.dleatee a Coen• Mea(ne.k M.tda DLP.MomenIT baronet t.>aem..J tent Veanta a.m.ue..niT amine Dytnmm Md, e oiv lw(ay} muRnnnuau Fnn venting aGP LMAP6gAC6 e aanda C..,n A.n ria Oren Pane Mtn Pen. Amnia vevenen. ate DES Mnn(W. eP nn d Winn HJt Anent YyIn. (® avid C D vp. (Amin, ..�wt.D tl MrywwAntao...z. 6Wim e,m e,nnn.®a�nne®.y.. Township Locator Map ormoSSEFtegirni a7accome We+[i:7EC CTyrs CmOeraC©�� 2173 Township 6 South Range 95 West O Pay dion, UTM Zane n NAD Jedqu.ln,ioo fen MIA*. PM -by Garfield County 11011, . n_. een 550 n, M.neeov.vernwn bnw,z)4� Adjoining 2131 2975 T. 6 S. -R. 94 W. PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@hughes.net Project: Cottonwood Compressor Station to Webster Hill 24" 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 is a list of landowners adjacent to or within 200' of the proposed right-of- way for the Cottonwood Compressor Station to Webster Hill 24" Gathering Line. Private landowners are identified by Assessor's Parcel Number and public lands are listed by address. This information is accurate as of 4/30/07. Garfield County planning staff has made a determination that only surface owners are to be identified and notified regarding the proposed right-of-way. 1. Parcel #2407-061-00-139 Exxon Mobil Corporation Attn. Exxon Co. U.S.A. PO Box 53 Houston, TX 77001-0053 2. Parcel #2173-331-00-007 Mobil Oil Corp Attn: Tax Dept. PO Box 53 Houston, TX 77001 3. Parcel #2173-352-00-016 Puckett Land Company 60% & Tosco Corporation 40% 5460 Quebec St. Ste. 250 Greenwood Vlg, CO 80111-1917 Page 1 of 4 4. US Highway 6&24/Interstate 70 Right -of -Way c/o Colorado Department of Transportation 4201 E. Arkansas Avenue Denver, CO 80222 5. Parcel #2173-222-00-951 U.S. Naval Oil Shale Reserve c/o US Department of Energy Mr. Tom Pauling 2597 B % Road Grand Junction, CO 81503 6. Parcel #2173-253-00-035 Douglas A. & Beverly A. Teter 4949 County Road 309 Parachute, CO 81635-9109 7. Parcel #2173-251-00-022 Harry L. & Rhonda K. Naugle PO Box 829 Rifle, CO 81650-0829 8. Parcel #2175-082-00-953 U.S. Naval Oil Shale Reserve c/o US Department of Energy Mr. Tom Pauling 2597 B % Road Grand Junction, CO 81503 9. Parcel #2175-301-00-056 Todd Lee Peters P.O. Box 2009 Rifle, CO 81650 10. Parcel #2175-194-00-961 Bureau of Land Management 50629 Highway 6 &24 Glenwood Springs, CO 81601 Page 2 of 4 11. Parcel #2175-211-00-022 W.F. Clough P.O. Box 686 Rifle, CO 81650-0686 12. Garfield County Road #246 c/o Garfield County Road & Bridge P.O. Box 426 Rifle, CO 81650 13. Parcel #2175-202-00-962 Bureau of Land Management 50629 Highway 6 &24 Glenwood Springs, CO 81601 14. Parcel #2175-201-00-187 Garfield County 108 8th St Ste 213 Glenwood Springs, CO 81601 15. Parcel #2175-143-00-108 Rulison Gas Company, LLC c/o Logan & Firmin Inc. 3615 S Huron St, Ste 200 Englewood, CO 80110 16. Parcel #2175-281-00-023 W.F. Clough PO Box 686 Rifle, CO 81650-0686 17. Union Pacific Railroad Company Property Tax 1400 Douglas, Stop 1640 Omaha, NE 68179-1640 Page 3 of 4 Please contact me with any questions. incerely, C Philip B. Vaughan President PVCMI Page 4 of 4 EXPLORATION & PRODUCTION Wi liams Production RMT Company Tower 3, Suite 1000 1515 Arapahoe Street Denver, CO 80202 303/572.3900 main 303/629.8281 Fax May 1, 2007 Mr. Fred Jarman, Director Garfield County Building and Planning Department 108 8th Street, 4th floor Glenwood Springs, CO 81601 Dear Mr. Jamul: 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 Webster Hill 24" Gathering Line. This includes the preparation and submission of documents associated with the land use application and representation ol'this application before the applicable appointed and elected boards. Sincerely, Joseph P. Barrett Assistant Secretary Sm Bargath, Inc. H0V.30.2005 6:47H9 Corporate Data Sheet Report As of 2/6/2003 Williams Production RMT Company Joseph P. Barrett Assistant Secretary 111--- 8/2/2001 8412001- 8/1/2002. TomE. Black Assistant Secretary 8/2/2001 8/2/2001 8/1/2002 Swaine $ Costiu Assistant Secretary 11/21/2002 11/214002 11/21/2002 Craig 1.. Rainey Assistant Sea:enaty 8/2/2001 8/24001 8/1/2002 Patti B. Rives Assistant Secretary 8/2/2001 8/24001 8/1/2002 Deborah Viehdorfer Assistant Secretary 8/22001 8/2/2001 8/1/2002 Securities Equity Common Stock Date First Authorized: 5/4/2001 Date First Issued: 5/42001 Authorized Capital: Exchange Listing: Transfer Agent CUSIP: Symbol: Comment: Date Cancelled: Par Value: >RAuthorized: 1,000 S Outstanding: 1,000 p Issued: 1,000 0 in Treasury. *Cancelled: et�r.�isTartaa Current Owner(s) Cerilfleate No. % Ownership I Units Williams Production Holdings LLC 3 100% 1,000.00 7/30/2002 Beneficial Ownership: Value of Consideration: Consideration: Comments: Former Owners) Certificate No. % Ownership *Units The Wihiams Companies, Inc. Beneficial Ownership: Value of Consideration: Consideration: Comments: Direct Subsidiaries $1,000.00 2 Moir or Wnder 100% 1,000.00 8/2/2001 7/30/2002 Registered in %Ownership Units Held Bargath Inc. Colorado 100.000 % 1,000 Barrett 1997 Trust Delaware 1.000 % Barrett Fuels Corporation Delaware 100.000 % 100 Bartell Resources Intetnetional Comoration Delaware 100000 °.6 1000 NOV.30.2005 8:50A1 WILLlrra Corporate Data Sheet Report As of 2/6/2003 Williams Production RMT Company Bison Royalty LLC Delaware 100.000 % • Piceance Production Holdings LLC Delaware 50.000 % Plains Petroleum Gathering Company Delaware 100.000 % 10,000 Rnlison Gas Company, LLC Colorado 100.000 % Ranson Production Company LLC Delaware 100.000 % Direct Owners 'Williams Production holdings LLC Renlstrations Registered In %Ownership Units Held Delaware 100.000 % Charter No. Tax ID 140. Date End Date Duration Colorado Qualification 7/16/2001 Perpetual Agent The Corporation Company Comments: Resources Acquisition Corp. qualified 7/16/2001. Qualification was amended in the name of Williams Production RMT Company on 8/14/2001. Delaware Incorporation Agent The Corporation Trust Company Comments: Qualification Agent The Corporation Company, Inc. Comments: Louisiana Qualification Agent: C T Corporation System Comments: Montana Qualification Agent C T Corporation System Comments: New Mexico Qualification Agent C T Corporation System Comments: North Dakota Qualification Agent C T Corporation System Comments: Oklahoma Qualification Agent The Corporation Company Comments: Texas Qualification Agent C T Corporation System Comments: Utah Qualification 5/4/2001 7/18/2001 8/13/2001 8/29/2001 12/11/2001 8/1/2002 8/17/2001 8/13/2001 8/15/2001 NOV.30.2005 8:50Fl WILLIHMS PROD RMT NO. '791 P.5/5 Corporate Data Sheet Report As.of2/8/2003. WWiams Production RMT Company Agent C r Corporation System Comments: Wyoming Qualification 7/23/2001 Perpetual Agent: C T Corporation System Comments: Resources Acquisition Corp. was qualified on 7/234001. Qualification was amended is the mune of Williams Production RMT Company on 8/14/2001. Hlstory 1 Mad On February 28, 2001 Plains Penolemr Company, a Delaware corporation, Plains Petroleum Operating Company, a Delaware corporation, meted with and into Barrett Resources Cotponation. 1 Other Name Change I Name changed from Raources Ambition Corp,to Wl iams Production RMT Company /112001 Merged Merger I Barren Resources Corporation merged with and into taconites Acgolaton Corp. Bader the name of Williams Protraction RMT Company. Generated: WIOW 24¢19 PM pep 4 de nuv. *1.tudb W 47H1 141LLIH'!i 1-1<01) ItU Corporate Data Sheet Report ' N0.790 P.713 As of 1/17/2005 Bargath Inc. Incorporation: Status: Entity Type: Federal ID lk Corporate Comment Tax Year End: Fiscal Year End: Annual Meeting Date: Canadian Entity- Federal Canadian Entity -Provindai Primary Address One Williams Center Tulsa, Oklahoma 74172 (United States) Bylaws Information Purpose of Business: Location of Minute Books: Location of Seal: Colorado (6/10/1986) Current Phone L Corporation Fax Th 84-1032091 Memel 0 This entity comet be dissolved due to a restriction in the Williams Production RMT Company Credit Agreement with Lehman. Employees: No Fabe Falx Directors Currendy Authorhed: Ralph A. Hill Steven J. Malcolm Officers Ralph A. Hill Neal A. Buck Bryan R Ouderian Mark W. Husband Joseph N. Jaggere III Travis N. Campbell Brian K. Shore Joseph P. Barren Tom B. Black Laady L. Fullmer Craig L. Rainey Minimum: Titin Director Director vw Maximum: Quorum: Classes. Effective First Elected Last Elected 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 Title Effective First Elected Last Elected Senior Vice President Vice President Vice President Vice President Vice President Treasurer Secretary Assistant Secretary +-- Assistant Secretary Controller & Assistant Treasurer Assistant Secretary AaS'elan tS ..ickuy 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 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2/2001 11/20/2003 11/20/2003 11/20/2003 11/21/2002 11/21/2002 11/21/2002 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 8/2/2001 8/2/2001 8/2/2001 8/2/2001 8/2'2O0t PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@hughes.net Project: Cottonwood Compressor Station to Webster Hill 24" Gathering Line. Submittal Item Tab 22- Construction Management Plan Please fmd attached the following documents that comprise the Construction Management Plan for the project: 1. 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 PVCMI Land Planning Division 1038 County Road 323 Rifle, CO 81650 Ph. 970-625-5350 Fax 970-625-4522 Email: pvcm@hughes.net Project: Cottonwood Compressor Station to Webster Hill 24" Gathering Line. Submittal Item Tab 22- Addenda to Construction Management Plan prepared by D.R. Griffin & Associates, Inc. A. Soil Conservation, Sedimentation and Erosion Control Plan Please refer to the attached Construction Stormwater Management Plan dated February 2007 B. Hazardous Materials Management & Spill Prevention Please see the attached Construction Stormwater Management Plan noted in Section A above. The SWMP plan addresses these issues in sections 4.4.2 and 4.4.2.1. Please contact me with any questions. Sincerely, Philip B. Vaughan President PVCMI Page 1 of 1 Last Revised 04/16/07 CONSTRUCTION MANAGEMENT PLAN FOR 24" BARGATH GATHERING PIPELINE SYSTEM COTTONWOOD GULCH To WEBSTER MESA GARFIELD COUNTY, COLORADO Submitted By Bargath, Inc. % Williams Production RMT Company Parachute, Colorado Prepared By D. R. Griffin & Associates, Inc. Professional Engineers & Land Surveyors Rock Springs, Wyoming April 16, 2007 Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 1 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 2.0 CONSTRUCTION SCHEDULE — Cottonwood to Webster Hill 24" Construction will begin upon the receipt of the necessary agency approvals and permits, acquisition of ROW grants from affected landowners, delivery of sufficient quantities of line pipe and other materials to start the work and retention of a qualified, available and economically viable contractor to perform the work. Estimated milestone dates for construction schedule events are as follows: Event Description Milestone Date Contractor solicitation/job showing: May 15, 2007 Receive final agency approvals and permits: June 27, 2007 Award pipeline construction contract: June 12, 2007 Receive start-up quantities of line pipe: July 2, 2007 Receive start-up quantities of equipment & materials: July 2, 2007 Commence pipeline construction: July 5, 2007 Pipeline. construction substantial completion (facilities ready for operation): September 12, 2007 Purge, pack and commissioning of pipeline service: September 26, 2007 ROW clean-up, restoration and mitigation work complete: September 28, 2007 Reseeding complete: October 26, 2007 Project close out and completion: November 9, 2007 Last Revised 04/16/07 TABLE OF CONTENTS Section Topic Pace 1. Purpose and Need 2 2. Right -of -Way Location 4 3. Facility Design Factors 7 4. Additional Components of the Right-of-way 9 5. Government Agencies Involved 10 6. Construction of the Facilities 11 7. Resource Values and Environmental Concerns 25 8. Stabilization and Reclamation 26 9. Operation and Maintenance 26 10. Termination and Restoration 27 11. Appendices A. CM Plan Location Maps B. Table Preliminary Ownership List & Surface Impact Summary C. Typical Drawings 1.0 PURPOSE AND NEED Introduction - This Construction Management Plan (CM Plan) was prepared in support of Bargath, Inc.'s (Bargath) Application for Pipeline Right -of -Way submittal to the Garfield County Building & Planning Department to construct a natural gas pipeline gathering system consisting of about 8.3 miles of new 24 - inch -diameter pipeline, 2.0 miles of new 12 -inch -diameter pipeline, two compressor stations, and ancillary facilities in Garfield County, Colorado. Bargath is a gathering pipeline operating company affiliated with Williams Production RMT Company (WPRMT). Project Description - The proposed gathering system will connect the outlets of four existing and two new field compressor stations to the upstream end of a recently constructed 30 -inch diameter gathering pipeline (30" Bargath Gathering Pipeline). The trunk of the gathering system will be a 24 -inch diameter pipe. Gathering system jumper lines connecting four compressor station outlets to the trunk line will be 12 -inch diameter pipe. The existing 30" pipeline will carry gathered natural gas about 8 miles to WPRMT's Parachute Creek Gas Plant for processing and eventual transportation on other pipeline systems for customer use. The two new compressor stations are Rabbit Brush CS and Webster Hill CS. Rabbit Brush CS discharge connects to the existing 30 -inch Cottonwood to Parachute pipeline and Webster Hill CS discharge connects to the proposed Cottonwood Gulch to Webster Mesa 24 -inch pipeline. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 2 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Ancillary facilities to be installed at the ends and along the pipelines include future pig launcher and receiver assemblies, tie-in piping and valve assemblies four pipeline and compressor station connections, side valve tee and blow off assemblies for connection of jumper lines to the trunk line and line drip assemblies for periodic removal of accumulated water and condensate liquids. Other miscellaneous items to be installed include line markers, cathodic protection wire leads and cathodic protection current rectifier stations or sacrificial anodes. Pipeline construction will primarily consist of typical trench and bury installation methods. At special road, irrigation ditch and other crossings, alternate installation methods including directional drilling, horizontal boring, flumed ditch and other methods will likely be used. Pipeline Right-of-way Length and Widths - The total project right-of-way length is approximately 54,782 lineal feet (10.38 miles) of which 45,439 lineal feet (8.61 miles) will be 24 -inch pipe, 2,054 lineal feet (0.39 miles) will be 16 -inch pipe, and 7,289 lineal feet (1.38 miles) will be 12 -inch pipe. About 7,298 lineal feet (1.38 miles) will be on Federal lands and the remainder of 47,484 lineal feet (8.99 miles) will be on fee or CDOT lands comprised of five (5) different owners. The requested permanent right-of-way width for all pipelines is 50 feet being situated 25 feet left and 25 feet right on either side of the pipeline centerline. A temporary right-of-way width of 75 feet total (25 feet additional over the permanent right-of-way width) is requested for construction purposes. The construction right-of-way will be situated 25 feet on one side (spoil side) and 50 feet on the other side (working side) of the pipeline centerline. The orientation of the spoil side and working side will vary left to right and right to left depending upon the pipelines proximity to existing parallel pipelines, other encroachments and terrain factors encountered along the pipeline route. Additional temporary extra workspace and staging areas beyond the 75 foot temporary construction work space will be needed at select locations along the pipeline routes. These areas are needed for road and drainage crossings, vehicle maneuvering area for sharp bends, top and bottom of steep terrain ascent sections, side hill bi-level construction segments, fabricated facility installation sites, equipment and material storage locations, begin and end pipeline staging areas and staging areas at major points of project access. These extra workspace and staging areas have not been currently identified. Prior to construction, such areas will be identified, mapped and summarized. This information will be submitted to the BLM in a temporary use permit application (TUP) for consideration and approval. Typically, the project area utilized for extra workspace and staging areas amounts to about 9% of the total disturbed acreage on a pipeline project. A 9% amount for extra workspace and Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 3 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 staging areas has been included in the surface impact summary presented in Appendix B of this CM Plan. Project Need - The product carried by the pipeline system will be field grade semi -wet natural gas. The pipeline system will be a non -jurisdictional, non- regulated high pressure gathering system moving gathered natural gas from field compressors towards a centralized gas processing plant. In recent time, gas well drilling, development and production has expanded significantly in the Parachute and Rifle regions of Colorado. Existing Bargath and WPRMT pipeline and other gathering facilities are unable to adequately gather and transport the quantities of natural gas demanded both presently and in the future. This project will provide added pipeline system size and operating pressure to efficiently move larger quantities of natural gas from field to market for public use and benefit. 2.0 RIGHT-OF-WAY LOCATION 24 -inch Trunk Line - The pipeline project 24 -inch diameter truck line begins at the downstream end (MP 0.0) in NW 1/4 SW '% of Section 34 T6S R95W Garfield County, Colorado, on fee lands and near a crossing of the Cottonwood Gulch drainage. The 24 -inch trunk line then proceeds east -northeasterly for about 8.3 miles generally paralleling the north side of and some distance from Interstate 70. The 24 -inch diameter trunk line ends at the upstream end (MP 8.3) in NW 1/4 SW 1/4 of Section 14 T6S R94W Garfield County, Colorado, on fee lands and the top of Webster Mesa. The 24 -inch pipeline first enters Federal lands (U.S. Naval Oil Shale Reserve) near MP 2.42 at south line of NW 1/4 SW '/4 Section 25 T6S R95W. The 24 -inch pipeline exits Federal lands (BLM) near MP 5.11 at the south line of S 1/2 NW % Section 20 T6S R95W. From MP 2.42 to MP 5.11, ownership alternates between USNOSR, BLM and fee lands nine (9) times. The total length of Federal lands crossed is about 7,298 lineal feet or 1.38 miles. Jumper Lines — Four each 12 -inch and one each 16 -inch jumper lines are to be included in the project. These lines will be situated entirely on fee lands. The first jumper line begins at the existing Anvil Point Compressor Station in SW % NW '/4 Section 20 T6S R94W and proceeds southerly about 69 lineal feet (0.01 miles) to tie into the 24 -inch trunk line at MP 4.86. The second jumper line begins at the Rulison Compressor Station in W ''A NE ' Section 29 T6S R94W and proceeds north -northwesterly about 4,418 lineal feet (0.84 miles) to tie into the 24 -inch trunk line at MP 5.17 in the NE 1/4 SW % Section 20 T6S R94W. This route generally parallels the east side of Anvil Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 4 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Points County Road #246. A horizontal directional drill installation is proposed for the crossing the Interstate 70 and adjoining Highway #6. The third jumper line begins at the Sharrard Compressor Station in the NE'/ SW '/ Section 21 T6S R94W and proceeds northerly about 2,308 lineal feet (0.44 miles) to tie into the 24 -inch trunk line at MP 6.16 in the SE '/ NW '/ Section 21 T6S R94W. This route generally parallels existing field access roads and pipeline corridors situated in the area. The forth jumper line begins at the Clough Compressor Station in the NE '/ SW '/ Section 16 T6S R94W and proceeds south -southeasterly about 494 lineal feet (0.60 miles) to tie into the 24 -inch trunk line at MP 6.72 in the NW '/ NE % Section 21 T6S R94W. This route generally parallels existing field access roads and pipeline corridors situated in the area. The 16 -inch jumper line begins at the proposed Rabbit Brush Compressor Station and proceeds east and south to connect to the existing 30" Bargath Gathering Pipeline. Maps —Vicinity and location maps showing the overall project appear on Drawing No. DRG-CVR01-14294, Cover Sheet 24" Bargath Gathering Pipeline in Appendix A. Pipeline and facility locations, ownership parcels, individual ownership crossing lengths and other detail information appear on Drawing Nos. DRG-PAS01-14294 through DRG-PAS12-14294, Pipeline Alignment Sheets 24" Bargath Gathering Pipeline. These drawings are provided in Appendix A. Land Status — Appendix B is a table of "Preliminary Ownership and Surface Impact Summary" for the project. This table presents the following information: • ROW # - Sequential list of ownership parcels crossed by the pipelines. • Legal Location of each crossed parcel by township, range, section and sectional part. • Apparent owner name for each parcel. • Length of parcel crossing. • Permanent ROW acreage per parcel at 50 foot ROW width. • Total construction ROW acreage for each parcel at 75 foot total width. • Extra workspace estimate acreage for each parcel at 9% of total. • Total surface impact acreage for each parcel • Subtotals and totals of the above for each ownership, 24 -in trunk line and each 12 -inch jumper line. A summary of the Appendix B table divided by Federal and fee lands only is shown below: Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 5 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Summary ROW Length and Acreage Totals For Federal and Fee Lands 24" Trunk Line and 12" Jumper Lines Two Compressor Stations 24" Bargath Gathering Pipeline Pro'ect Bargath Inc. % Williams Production RMT Company Owner Length LF Permanent ROW 50' Acres Construction ROW 75' ACRES Extra Workspace at 9% Total Acres Total Surface Area Acres Federal Lands 7,298 8.38 12.57 1.24 13.81 Fee and CDOT Lands 47,484 54.50 81.76 8.09 89.84 Total Lands for Pipelines 54,782 62.88 94.33 9.33 103.65 Lands for Stations — All Fee 28.52 Site Specific Locations — The following are site specific locations for special crossings, on-line facilities, above ground assemblies and other such project locations identified at this time. All facilities and locations listed are situated on fee lands. • MP 0.0 24 -inch Trunk Line — Future pig receiver, end valve and tie-in piping fabricated assembly. Connection to existing 30 -inch gathering pipeline. • MP 1.29 24 -in Trunk Line — Line drip buried pressure vessel with above grade gas vent, liquid load out line, spill containment improvements and appurtenances. • MP 4.86 24 -inch Trunk Line — Side valve assembly for Anvil Points jumper line tie-in. • MP 4.94 24 -inch Trunk Line — CL Anvil Points County Road #246 horizontal bore crossing. • MP 5.17 24 -inch Trunk Line — Side valve assembly for Rulison jumper line tie-in. • MP 5.80 24 -inch Trunk Line - Line drip buried pressure vessel with above grade gas vent, liquid load out line, spill containment improvements and appurtenances. • MP 6.16 24 -inch Trunk Line — Side valve assembly for Sharrard jumper line tie-in. • MP 6.67 24 -inch Trunk Line — Side valve assembly for Clough jumper line tie-in. • MP 8.34 24 -inch Trunk Line — Future pig launcher, end valve and tie-in fabricated assembly. Connection to Webster Mesa Compressor Station outlet yard piping. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 6 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 • Anvil Points Jumper Line — Tie-in assembly to compressor outlet yard piping in SW '% NW '% Section 20 T6S R94W. • Rulison Jumper Line - Tie-in assembly to compressor outlet yard piping in W'/2 NE '% Section 29 T6S R94W. • Rulison Jumper Line — Horizontal directional drill crossing of Highway 6 and Interstate 70 in NW % NE 1/4 Section 29 T6S R94W. • Sharrard Jumper Line — Tie-in assembly to compressor outlet yard piping in NE '% SW '% Section 21 T6S R94W. • Clough Jumper Line - Tie-in assembly to compressor outlet yard piping in NE % SW % Section 16 T6S R94W. • Rabbit Brush Compressor Station parcel and facilities. • Rabbit Brush Discharge Jumper line begin point, end point and facilities. • Webster Hill Compressor Station parcel and facilities. Where needed, site specific crossing permit plan and profile drawings, fabricated facility drawings and site grading plans will be prepared for the above facilities. For required permits, the drawings will be submitted to controlling agencies for application and approval. All drawings will be prepared and completed for bidding and construction purposes. All drainage crossings encountered on the project are ephemeral "dry washes." With the exception of Anvil Points County Road #246, Interstate 70 and Highway #6, all other road crossings on the project are non-public field access roads and two -tracks. No site specific crossing permits, designs and drawings are required or contemplated for these crossings. Appendix C Typical Drawings shows typical construction detail to be utilized on the project for typical small stream or dry wash crossings, uncased bored road crossings and uncased cut and cover road crossings. 3.0 FACILITY DESIGN FACTORS The design and construction of the pipeline system will be in accordance with applicable regulations, recognized industry codes and the normal and customary practice for this type of facility. These regulations and codes include the latest accepted editions of 49 CFR 192 Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards and ASME B31.8 Gas Transmission and Distribution Piping Systems. Maximum operating pressure, pipe material specifications, basic construction requirements and other such design factors for the project are listed below: Design maximum operating pressure: 1,200 psig Project line pipe, F = 0.72 24.000" OD x 0.312" WI x API -5L X-65 12.750" OD x 0.281 WI x API -5L X-42 Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 7 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Project line pipe, F = 0.60 road crossings: 24.000" OD x 0.375" WT x API -5L X-70 12.750" OD x 0.375" WT x API -5L X-52 Project line pipe, F = 0.60 fabricated assemblies: 24.000" OD x 0.375" WT x API -5L X-70 12.750" x 0.312" WT x API -5L X-42 ( Valve and flange rating: ANSI Class 600 Pipe coating, typical installation: Nominal 15 mil thin film -fusion bonded epoxy factory applied (TF-FBE). Pipe coating, road bore rough handling installation: Abrasion resistant overlay (ARO) nominal 45 mil over nominal 8 mil TF-FBE. Pipe coating, fabricated assembly installation: Bare metal pipe provided for fabrication. Below grade installation primer coated and tape wrapped. Above grade installation spray painted with epoxy based paint. Minimum pipe cover in trench: 1'-6" for rock areas 2'-6" for general areas 4'-0" for cultivated and industrial activity areas 5'-0" for road crossings 7'-0" for drainage and canal crossings Trench dimensions: Width: Pipe OD + 1'-2" minimum Pipe OD + 3'-0" Maximum Depth: Min Cover + Pipe OD + 0'-6" NOTE: for trenches greater than 5'-0" total depth, conditions shall be inspected by a qualified person and appropriate slope stability measures implemented as required for safety. This may include sloping, shoring and bracing trench walls as directed by the qualified person. Pipeline product: Field grade semi -wet natural gas, flammable, non-toxic. Operating temperature: Nominal 60° F, Typical range 40°F to 90°F, Maximum design temperature coatings 120°F Maximum design temperature pipe, valves 8 fittings 250°F Size and width of permanent and construction rights-of-way, extra workspace, staging sites and other temporary areas are discussed in Section 2 above. Locations not included in the permanent right-of-way (50 foot width) and temporary construction total width (75 foot width) will be identified, mapped and tabulated prior to construction. Locations on Federal Lands will be listed and applied for in a temporary use permit application. The TUP application will be submitted and approved prior to construction. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 8 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 4.0 ADDITIONAL COMPONENTS OF THE RIGHT-OF-WAY Connections to existing or proposed facilities are listed as follows: • 30" Bargath Gathering Pipeline - NW '/ SW 1/4 Section 34 T6S R95W — Tie-in with the upstream end of an existing 30" gathering pipeline in the vicinity of Cottonwood Gulch. Located on fee lands. • Anvil Points Compressor Station — SW '% NW '% Section 20 T6S R94W - Tie-in to existing compressor outlet yard piping. Located on fee lands. • Rulison Compressor Station - N % NE '% Section 29 T6S R94W - Tie-in to existing compressor outlet yard piping. Located on fee lands. • Sharrard Compressor Station - NE '% SW '% Section 21 T6S R94W.— Tie- in to existing compressor outlet yard piping. Located on fee lands. • Clough Compressor Station - NE % SW '/4 Section 16 T6S R94W - Tie-in to existing compressor outlet yard piping. Located on fee lands. • Rabbit Brush Compressor Station — S '% Section 32, T6S R95W — Tie-in to proposed compressor outlet yard piping. Located on fee lands. This proposed compressor station is to be situated within a nominal 700' x 890' 14.30 acre site located in the S 1/2 of Section 32 T6S R95W. The parcel site is located entirely on fee lands. This station is required to upgrade system pressure and flow for current and future gas gathering needs. • Webster Hill Compressor Station - NW '% SW 1/4 Section 14 T6S R94W — Tie-in to proposed compressor outlet yard piping. Located on fee lands. This proposed compressor station is to be situated within a nominal 700' x 885' 14.22 acre site located in the SW '% NW '/ and NW '% SW '% of Section 14 T6S R94W. The parcel site is located entirely on fee lands. For a considerable length (70% more or less) of the proposed pipeline routes, the centerlines parallel linear facilities such as existing pipelines, power lines, access roads and property lines. Parallel offsets are typically a nominal 25 feet, 50 feet 75 feet and 75 feet for associated company facilities, foreign company facilities, power lines and access roads, respectively. Offset distance may vary from these amounts depending upon terrain conditions, planned working direction for pipeline construction, existing encumbrances and similar factors. On the Federal land portions of the project, the centerline parallels a power line and existing roads for certain lengths. Soil material for padding of the installed pipeline will be required throughout the project length. Such padding material will be developed from trench excavated materials using self-propelled padding machines or shaker buckets and screeds mounted on track backhoes or other typical pipeline construction equipment. Material from the right-of-way designated as topsoil shall not in any instance be used for pipeline padding. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 9 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 In the event that sufficient fine grain material is not present for pipeline padding, select borrow material will be imported to the project site from commercial or other approved sources. Road base type gravel or similar will likely be used for surfacing at select locations for above grade and other operating facilities. This material will be imported from commercial sources. Except for temporary amounts placed at designated staging and extra workspace areas, storage locations for the majority of project line pipe, other materials and equipment will be offsite. These locations will be pre-existing pipe rail ports, lay - down yards, warehouse facilities, storage yards and similar areas belonging to WPRMT, affiliated companies, contractors or other industrial/commercial entities. Other than as mentioned, no additional storage facilities or right-of-way staging areas are contemplated for Federal lands on this project. 5.0 GOVERNMENT AGENCIES INVOLVED The proposed project will be constructed and operated as an intrastate upstream gathering pipeline for the sole transport of WPRMT products. The project is located in a Class 1 area (as defined by 49 CFR 192.5) and upstream of any gas processing plant. Accordingly, the project will be non -jurisdictional and not under the rule of the Federal Energy Regulatory Commission. Likewise, the project is non -regulatory (as defined by 49 CFR 192.1) and not under the authority of the U.S. Department of Transportation Office of Pipeline Safety or the Gas Pipeline Safety Division of the Colorado Public Utilities Commission. Although being non - jurisdictional and non-regulated, the pipeline will be designed, constructed and operated in accordance with the USDOT regulations and ASME codes previously sited. Construction and operation of the project will, however, comply with Colorado Revised Statutes CRS 9-1.5-105 pertaining to gas pipeline operator participation and compliance with the Utilities Notification Center of Colorado Notification Association. The project crosses properties listed in the Garfield County Recorder and Assessor Offices as being owned by the U.S. Naval 00 Shale Reserve and the Bureau of Land Management. Unless otherwise informed, it is understood that all right-of-way grants and temporary use permits for Federal lands (both USNOSR and BLM) will be under mandate of the Bureau of Land Management. The project is situated entirely within Garfield County, Colorado, and will accordingly require permits and approvals from appropriate departments of that county. These include: • Utility road crossing or encroachment license, Garfield County Road & Bridge Department. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 10 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 • Pipeline Development Plan Permit, Garfield County Building & Planning Department. All drainages crossed by the project are intermittent streams or ephemeral "dry - washes" and are not considered "Waters of the United States." Applications for utility stream crossing permits to the U.S. Army Corps of Engineers under 33 CFR 325 will not be required for the project. Permits from the State of Colorado may be needed for acquisition of water for project use and for the disposal of hydrostatic test water and accumulated storm water discharge. The horizontal directional drill crossing of Interstate 70 and Highway #6 will require state permitting. The permits and Colorado agencies involved include: • Surface water or well water appropriation, Colorado Department of Natural Resources, Division of Water Resources. • Construction Activity Storm Water Discharge with Storm Water Management Plan, Colorado Department of Health, Water Quality Control Division. • Construction Dewatering Wastewater Discharge, Colorado Department of Health, Water Quality Control Division. • Utility road crossing or encroachment license, Colorado Department of Transportation. 6.0 CONSTRUCTION OF THE FACILITIES Project Survey And Pre -construction Staking - Prior to the construction of the proposed project, numerous pre -construction activities will be completed. These activities include, but are not necessarily limited to, land surveying, selection of final pipeline alignment and facility locations, coordination with land owners and other affected interests, coordination with users of existing utility corridors, procurement of ROW, acquisition of permits, finalization of engineering design, procurement of materials, and selection of construction contractors. Additional surveys will be conducted for construction staking purposes. Permission will be obtained, as necessary, prior to entering a property to conduct a survey. Pre -construction staking designates the centerline and outside ROW boundaries. These and the extra construction widths will be staked and flagged at 200 -foot nominal intervals or at other appropriate spacing required by conditions. Known existing utility locations will be flagged where the pipeline parallels or crosses existing utility corridors to avoid damage and disturbance. Additional staking will be provided as needed at meter stations, pigging facilities, side valves and other appurtenant facilities. The limits for all construction staging areas and the location of access road entry points will be suitably staked and flagged. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 11 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Project Drawings, Engineering Specifications And Standards Project drawings to be prepared for the work will include the following: • Pipeline alignment sheets • Mechanical flow diagram • Fabrication drawings • Crossing and permit drawings • Construction and environmental detail sheets • Other special detail drawings as needed. Documents to describe and detail the work will include the following: • Pipeline Construction Contract • 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 permit or license issued by controlling agencies providing a required approval for the project will also be considered a controlling standard for the project. Construction Schedule, Manpower and Equipment - Construction will begin upon the receipt of the necessary agency approvals and permits, acquisition of ROW grants from affected landowners, delivery of sufficient quantities of line pipe and other materials to start the work and retention of a qualified, available and economically viable contractor to perform the work. The estimated duration Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 12 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 of construction for this project is sixty (60) calendar days. Surface landowners will be provided required notice in advance of construction start up. Authorized representatives of WPRMT, WPRMT's construction inspectors, project managers, construction engineers and surveyors and the contractor's supervisor staff shall attend any BLM required pre -construction meeting. The number and types or personnel, vehicles and equipment employed for project construction will increase from a minimum at the beginning of the work, to a maximum about three weeks after start, stay more or less at this peak level until about three weeks from the end of the work and then decrease to a minimum. At the peak level of personnel staffing and equipment deployment, the following types and approximate numbers can be expected: Description Quantity (Each) Personnel Surveyors 4 Construction Manager 1 Construction Engineer 1 Chief Inspector 1 Inspector/Management Clerical 1 Inspectors 9 X-ray Technicians 4 Construction Supervisor 1 Assistant supervisor 1 Contractor clerical 1 Foremen 2 Equipment Operators 6 Welders 6 Welder Assistants 6 Laborers 15 Truck Drivers 6 TOTAL 65 Vehicles & Equipment 4x4 Pickup & personal cars 40 Dozers 2 Patrol Graders 2 Brush Hog 1 Side Booms 4 Welder Trucks 6 Trucks & Flat Bed Trailer 4 Stringing Trucks 4 Flatbed Trucks 4 Trenching Machine 1 Track Backhoes 2 Wheel Backhoes 2 Horizontal Boring Machine 1 Directional Drill Machine 1 Pipe Bending Machine 1 Dump Truck 1 X-ray Van 2 Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 13 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Description Quantity (Each) Air Compressors 2 Water Pumps Dewatering 4 Water Pumps Pressure Test 2 Side Cast Seeder 1 Drill Seeder 1 Office Trailer 2 Equipment Trailer 2 Portable Toilets 4 Personnel and equipment required for a project of this size, type and nature exist in adequate quantities in the regional area. The equipment and personnel will be staged and lodged in nearby locations to include but not limited to Parachute, Rifle, Meeker, Craig, Glenwood Springs, De Beque, Grand Junction and points in between. Pipe storage yards, equipment and materials warehousing, contractor yards and other project use areas will be a pre-existing locations owned by WPRMT or other industrial or commercial concerns. 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. Three approaches to topsoil removal are provided in this CM Plan. These include: 1) full ROW width topsoil removal; 2) trench and spoil area only topsoil removal and 3) blade width only topsoil removal. ROW section details of these topsoil removal methods are provided in Appendix C Typical Drawings. The method of topsoil removal to be utilized on the project may vary from location to location. This will depend upon landowner desires, government agency stipulations, conditions encountered on the ground during construction, advisement of any soil & reclamation specialist employed or involved on the work, and the preferences and requirements of the contractor in regard to his adopted plan for successful clearing, grading, restoration, reseeding and reclamation of the project. Grading of the construction area will be performed in order to create a suitable work surface for construction vehicles and heavy equipment. On flat to mildly or Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 14 of 30 DRG Job 414294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 moderately sloping terrain, a uniform work surface will be graded across the entire ROW. A bi-level work surface may be necessary in more sloped areas. ROW section details for side hill bi-level construction are shown in Appendix C Typical Drawings. Side hill cuts will be kept to a minimum to ensure resource protection and a safe, stable surface for heavy equipment use. When required by controlling agency or the landowner, construction activities will not be conducted during conditions when the soil on the ROW or access roads are too wet to adequately support construction equipment. In such instances and where construction equipment creates excessively deep ruts, construction activities will be discontinued until soil conditions improve. All survey monuments located within the ROW will be protected during construction activities. Survey monuments include, but are not limited to, General Land Office and BLM Cadastral survey corners, reference corners, witness points, U.S. Coastal and Geodetic Survey benchmarks and triangulation stations, military control monuments, and recognizable civil survey monuments. In the event of obliteration or disturbance of any of the above, the incident will be duly reported. Where such monuments are obliterated during construction, the services of a registered land surveyor will be employed to restore the monuments in accordance with established procedures. Each such survey would be duly recorded with the appropriate county and other jurisdictional agencies. Trenching - Typical pipe cover, ditch width, depth and similar dimensions are detailed in Section 3.0 Facility Design Factors above. 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. Such instances include where the ditch will be excavated to pass beneath railroads, roads, streams, drainages and other obstructions. As a minimum, the ditch will be excavated to a depth to allow a clearance of 24 inches between the project pipeline and other pipelines or underground facilities. Machine excavation will not be performed closer than 5 feet from any existing pipeline, communications cable or other such buried facility encountered in the ROW. Existing pipeline locations will be marked in the field and 48-hour prior notification given to the pipeline or other underground utility operator. Construction methods employed to excavate a trench will vary depending on soils, terrain, and related factors. Self-propelled trenching machines will be used where possible. Conventional mechanical backhoes will be used on steep slope areas, unstable soils, high water table, and where deep or wide trenches are required. Where rock or rock formations are encountered, tractor -mounted mechanical rippers or rock trenching equipment may be used to facilitate excavation. In areas where rippers or trenchers are not practical or sufficient, Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 15 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 blasting may be employed. Strict safety precautions will be taken when blasting. Backhoes will then be used to clean the ditch after ripping or blasting. Unless otherwise required and agreed upon, pipeline crossings of non -surfaced, gravel, lightly traveled, and rural roads will be made using open trench "cut and cover" methods with mechanical ditching machine or backhoe. Installation at these locations, including cleanup and restoration of road surfaces, will usually be completed within one day. Provisions will be made to detour or control passage of traffic during the construction. Boring & Drilling - 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 fluid or mud 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 been 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 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 Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 16 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 horizontal alignment as well. For steel pipe, the rate of installed curvature is about 100 foot of radius for each inch of pipe size (i.e. R = 3,000 feet for 30 -inch carrier pipe, R = 800 feet for 8 -inch carrier pipe). Drilling installation 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. Pipe installation - Pipe will be shipped directly from a manufacturer or supplier by rail and truck to offsite storage sites and then be hauled by truck to the pipeline ROW. Each individual joint of pipe will be unloaded by cranes or tractors equipped with side booms and slings, and strung parallel to the ditch. Sufficient pipe for road crossings will be stockpiled at staging areas near the crossing. Stringing operations will be coordinated with trenching and installation activities in order to properly manage the construction time at a particular tract of land. Gaps will be left at access points across the ditch to allow crossing of the ROW. As construction proceeds, some of the pipe and stringing equipment will be temporarily stored at approved staging and extra workspace areas along the ROW. After the joints of pipe are strung along the ditch but before the joints are welded together, individual joints of the pipe will be bent to accommodate horizontal or vertical changes in direction. Such bends will be made utilizing an approved cold, smooth bending machine having a hydraulically operated shoe that makes the bend. Where the deflection of a bend exceeds the allowable design limits for field -bent pipe, shop fabricated pieces (induction or "hot bends") or trimmed segmentable forged fittings will be installed. After the pipe joints are bent, the pipe is lined up end-to-end and clamped into position. The pipeline will then be welded in conformance with 49 CFR Part 192, Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 17 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Subpart E, 'Welding of Steel in Pipelines" and API 1104, "Standard for Welding Pipelines and Related Facilities," latest edition. Welds will be visually inspected by a qualified inspector and will be subject to radiographic inspection in conformance with DOT requirements. A specialized contractor certified to perform radiographic inspection will be employed to perform this work. Any defects will be repaired or removed as required under the specified regulations and standards. Project specifications will require that the pipe be externally coated with fusion bonded epoxy coating prior to delivery. After welding, field joints will be coated with either a tape wrap or shrinkable sleeve wrap. Before the pipe is lowered into the ditch, the pipeline coating will be visually and electronically inspected and any detected faults or scratches will be repaired. 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 pre -construction 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. 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 Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 18 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 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. 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. Hydrotest water will be supplied by Williams Production RMT water treatment facilities, and will be disposed of at the same facility. Performance of these operations shall avoid adverse impacts to aquatic, wildlife, and visual resources. The test water will be obtained from a surface water, an existing well (pending water appropriation permits), a municipal water source and a commercial provider. At discharge points, the release of water will be controlled to prevent erosion. Energy dissipating devices will be employed where needed. When required, discharged waters will be sampled, tested and filtered in accordance with applicable discharge permit requirements. 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 transmission and gathering service. The event is typically called the moment of "Substantial Completion." Cleanup and Restoration - Upon completion of backfilling, construction work will commence to clean up, restore, and re -vegetate the ROW. Efforts will have be taken during the prior work to minimize erosion, restore the natural ground contour, account for trench settling, re-establish plant growth, and allow natural surface drainage. As agreed with the landowner or controlling agencies, all completed construction areas and temporary access roads will be returned as nearly as possible to their original condition and service. All restoration and re - vegetation will be completed to the satisfaction of the landowners, controlling agencies and other recognized parties. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 19 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 First, any trash, brush, surplus material, or other debris will be cleared from construction areas and disposed of in an appropriate manner. The ROW will then be graded and restored to nearly pre -construction grades. Final restoration of disturbed areas will be accomplished by whatever means are most suited for the particular soils, terrain, vegetation and climate at a specific site. In general, waterbars will be constructed to prevent erosion of unconsolidated soils and provide drainage away from the disturbed area and into existing washes or drainages. Where deemed appropriate, slash will be used to control erosion. Where necessary, terracing or other erosion control techniques may be employed. Reseeding will be accomplished using seed mix or plant species approved by the landowners or controlling agencies. Seedbed preparation and seeding operations will be conducted in accordance with accepted techniques for the particular area and task. In areas with difficult reclamation problems, restoration and re -vegetation will be considered a special management problem and will be resolved in coordination with the landowner and the respective authorities involved. Advice may be sought from specialty agencies or environmental consultants to fully determine the appropriate mitigation and reclamation measures needed. Residential Areas And Private Property - The construction ROW will not be located within 50 feet of a place of residence or similar use. Where residential and private property is 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. • 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 Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 20 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 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. Livestock Issues - Prior to construction, concerns and issues of landowners, lessees and controlling agencies in regard to pipeline construction and livestock will be solicited and considered. Stipulations, requirements and reasonable requests developed from such inquires will be incorporated in the work. As a minimum, the following will be established for the work: • Fences crossing the ROW will be braced, cut, and temporarily fitted with gates to permit passage. • During construction, the openings will be controlled as necessary to prevent the escape of livestock. • Existing fences will be replaced and braces left in place upon completion of construction activities. • During construction, no gates or cattle guards on established roads over public or private lands will be obstructed or damaged by construction activities. • Adequate precautions will be taken to ensure that livestock and wildlife will not be prevented from reaching water sources because of open ditches or pipe strung along the ditch. Such precautions will include contacting livestock operators, providing adequate crossing facilities, or other measures as needed. • All damaged livestock facilities will be repaired or replaced to a condition as good as or better than the pre -construction condition. The final facilities shall be acceptable to the landowner, lessee or other authorized person. Temporary fences shall be installed if original fences affected by the work do not provide adequate livestock control. • Temporary fences or other barriers shall be installed if pipeline construction destroys or eliminates natural barriers. Replacement of the natural barrier is desired upon the completion of construction if practical. Permanent fencing or artificial barriers shall be used if the natural barrier cannot be reasonably restored. 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: Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page21 of 30 DRG Job #14294 D. R. Griffm & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 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 an 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 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. Waste Disposal and Sanitation - The following measures will be implemented and enforced in the performance of the project work: Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 22 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 • 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 of promptly at an approved site. • "Waste" means all discarded matter, including but not limited to, human waste, trash, garbage, refuse, oil and fuel drums, petroleum products, blasting boxes, worn out parts, abandoned equipment, leftover materials, etc. • Excess or unsuitable materials will be returned to the supplier, sold to a commercial salvage yard, turned in at commercial recycling center or delivered to public or private disposal site approved for project use. • Special implementation plans prepared for and made part of the work will be maintained and followed for the duration of the work. Such plans may include Hazardous Materials Management Plan, Spill Prevention and Countermeasure Plan and others. • Portable chemical toilets will be provided and dispersed within the project area. Their number and location will vary with the length of the project, the number of workers present and the work phase of the project. Generally, a portable toilet will be provided at each contractor yard, pipe yard or permanent staging area. 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. Construction Access - Access for construction equipment and personnel will be entirely from existing public roads, existing field access roads and along the pipeline right-of-way. Public roads involved include Interstate 70 and its associated frontage roads, Highway #6 and County Road #246. WPRMT has already or will enter into operating agreements with the landowners or operators for existing field access roads to be used for construction and operations. Where needed, WPRMT will apply for and acquire temporary use permits for project field access roads located on Federal lands. Appendix A CM Plan Location Maps shows graphically the public roads and the field access roads to be used for project construction. Access roads for project use located on U. S. Naval Oil Share Reserve and BLM lands are listed in Appendix C Table of Access Roads on Federal Lands. Diagrams, Drawings and Cross Sections — Appendix A CM Plan Location Maps of this CM Plan provides graphic information about the pipeline project vicinity and location of the pipeline routes and major facilities in addition to other Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 23 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 information. Pipeline construction details proposed for project use including road and drainage crossings, right-of-way cross section development, topsoil clearing limits and construction sequence are provided in Appendix C Typical Drawings of this CM Plan. These drawings include the following: Drawing List Alignment Sheets Drawing No Description DRG-PAS01- 14294 SHEET 1 - 24" Bargath Gathering Pipeline STA 0+00 to STA 47+00 DRG-PAS02- 14294 SHEET 2 - 24" Bargath Gathering Pipeline STA 47+00 to STA 97+00 DRG-PAS03- 14294 SHEET 3 - 24" Bargath Gathering Pipeline STA 97+00 to STA 142+00 DRG-PASO4- 14294 SHEET 4 - 24" Bargath Gathering Pipeline STA 142+00 to STA 190+00 DRG-PAS05- 14294 SHEET 5 - 24" Bargath Gathering Pipeline STA 190+00 to STA 244+00 DRG-PAS06- 14294 SHEET 6 - 24" Bargath Gathering Pipeline STA 244+00 to STA 294+00 DRG-PAS07- 14294 SHEET 7 - 24" Bargath Gathering Pipeline STA 294+00 to STA 344+00 DRG-PAS08- 14294 SHEET 8 - 24" Bargath Gathering Pipeline STA 344+00 to STA 392+00 DRG-PAS09- 14294 SHEET 9 - 24" Bargath Gathering Pipeline STA 392+00 to STA 437+61 DRG-PAS10-14294 SHEET 10 - 12" Anvil Points Jumper Line STA 0+00 to STA 0+69 & 12" Sharrard Jumper Line STA 0+00 to STA 23+08 DRG-PAS11- 14294 SHEET 11 - 12" Rulison Jumper Line STA 0+00 to STA 44+18 DRG-PAS12- 14294 SHEET 12 - 12" Clough Jumper Line STA 0+00 to STA 4+94 Piping Flow Diagram Drawing No Description DRG-PID01-14294 Piping Flow Diagram 24" Bargath Gathering Pipeline Fabrication Drawings Drawing No Description DRG-FAB01- 14294 24" Bargath Gathering P/L Fab Details Receiver & End Facilities DRG-FAB02- 14294 24" Bargath Gathering P/L Fab Details Liquid Collector DRG-FAB03-14294 24" Bargath Gathering P/L Fab Details Anvil Point & Clough Tie-in & Jumper Lines DRG-FAB04-14294 24" Bargath Gathering P/L Fab Details Rulison & Sharrard Tie-in & Jumper Lines DRG-FAB05- 14294 24" Bargath Gathering P/L Fab Details Launcher & End Facilities Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 24 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Drawing List Construction & Environmental Detail Drawings Drawing No Description DRG-DTL01-14294 SHEET 1 Construction and Environmental Details DRG -14294- 9114 Open Cut Crossing - Flume Method DRG -14294- 9126 Typical Matting Streambanks DRG -14294- 9133 Typical Matting Slopes DRG -14294- 9113 Open Cut Crossing - Flowing Waterbody Method DRG -14294- 9103 Typical Sandbag Trench Slope Breakers DRG -14294- 9102 Typical Polyurethane Foam Trench Breakers DRG-DTL02-14294 SHEET 2 Construction and Environmental Details DRG -14294- 9106 Typical Straw Bale Sediment Barrier (Sht 1 of 2) DRG -14294- 9107 Typical Straw Bale Sediment Barrier (Sht 2 of 2) DRG -14294- 9108 Typical Silt Fence Sediment Barrier (Sht 1 of 2) DRG -14294- 9109 Typical Silt Fence Sediment Barrier (Sht 2 of 2) DRG -14294- 9110 Typical Waterbar (Slope Breaker) (Sht 1 of 2) DRG -14294- 9111 Typical Waterbar (Slope Breaker) (Sht 2 of 2) DRG -14294- 9135 Typical Open -Cut Crossing - Non -flowing Stream Method DRG -14294- 9105 Typical Crossing of Creek or Drainage DRG-DTL03-14294 SHEET 3 Construction and Environmental Details DRG -14294- 9197A Typical Detail Bullard Protective Barriers (Sht 1 of 2) DRG -14294- 9197B Typical Detail Bullard Protective Barriers (Sht 2 of 2) DRG -14294- 9100 Typical Temporary Crossing Ramp Over Existing Pipelines DRG -14294- 9198 Pig Bars for Weld Tee Branch Outlets -Standard Thickness DRG -14294- 9104 Typical Temporary Pipe Stockpile During Construction DRG -14294-9188 Typical Pipeline Support Pillows of Sandbags or Polyurethane Foam DRG-DTL04-14294 SHEET 4 Construction and Environmental Details DRG -14294-9196 Cathodic Protection Test Station Type Configuration, Cadweld & Post Installation Procedures DRG -14294- Typical Buried Cable Crossing Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 25 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Drawing List 9185 DRG -14294- 9146 Typical Foreign Pipeline Crossing DRG -14294- 7203 Typical Bored Crossing of Road by Uncased Pipeline DRG -14294- 7204 Typical Open Cut Crossing of Road by Uncased Pipeline DRG-DTL05-14294 SHEET 5 Construction and Environmental Details DRG -14294- 9120 Typical Temporary Soil Containment Berm (Saturated Soils) DRG -14294- 9121 Typical Straw Bale Dewatering Structure - Small Volume DRG -14294- 9122 Typical Straw Bale Dewatering Structure - Large Volume DRG -14294- 9187 Typical Protective Coating Detail DRG -14294- 9153 Typical Exclusion Fence and Lath DRG -14294- 9148 Typical Temporary and Permanent Gate Detail DRG -14294- 9202 Typical Detail Anchor Flange and Concrete Block DRG-DTL06-14294 SHEET 6 Construction and Environmental Details DRG -14294- 9125 Typical ROW Section Full Width Topsoil Salvage DRG -14294- 9124 Typical ROW Section Trench & Spoil Topsoil Salvage DRG -14294- 9145 Typical ROW Section Blade Width Topsoil Salvage DRG -14294- 9200 Typical Side Hill ROW Section Bi -level Grading DRG -14294- 9160 Typical Large Incised Channel DRG -14294- 9161 Typical Small Incised Channel Hydrostatic Test Profile Drawing No Description DRG-HYD01- 14294 24" Bargath Gathering P/L Hydrostatic Test Profile Crossing Drawings Drawing No Description DRG-XNG01-14294 Location, Plan and Profile Uncased Horizontal Bore Crossing of County Road #246 DRG-XNG02-14294 Location Plan and Profile Uncased HDD Crossing of Frontage, 1-70 and Highway #6 Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 26 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 Contingency Planning and Contacts — The following individuals and companies currently have interest, agency or representative capacity for Bargath and WPRMT in part or all of the design, development, permitting, construction and operation aspects of the pipeline project. Additional individuals with the responsibilities of construction management, inspection, materials, construction, operations, health & safety, environmental and other will added to this list in the course of the project. BLM, county, state and local government agency contacts and representatives will be added as soon as they have been identified or assigned. Name Title Responsibility Company Sponsor/ Manager Company Contact Info Williams Production RMT Company, Parachute, Colorado, 970-263-2743 Office Tom Fiore Plant Manager Eric Miller District Gathering and Processing Manager Company Sponsor/ Manager Williams Production RMT Company, Denver, Colorado, 303-629-8417 Office Charles Bucans, PE Principal Project Manager Star Valley Engineering, Inc. Etna, Wyoming, 307-883- 4906 Office Larry G. Bodyfelt, PELS Engineering Manager Project engineering, surveying, technical services D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Office Dave Spurlock PLS (or) Ron Rennke PLS Survey Manager Field Survey Supervisor D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Office Sandy Hotard CPL Field Land Manager ROW acquisition & permitting Williams Production RMT Company, Parachute, Colorado, 970-683-2288 Office Michael Gardner Senior Environmental Specialist Environmental Matters Williams Production RMT Company, Parachute, Colorado, 970-285-9377 Office Industrial Wastes and Toxic Substances - No toxic substances are proposed for use in connection with construction. However, if toxic substances are required, usage shall conform with the provisions of the Toxic Substances Control Act of 1976, as amended (40 CFR Part 702-799). Any release of toxic substances (leaks, spills, etc.) in excess of the reportable quantity as established by 40 CFR Part 117.3, shall be reported as required by the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, Section 102 B. A copy of any requested report required by any federal or state agency of a reportable release or spill of any hazardous material shall be furnished to the authorized officer within 5 working days of the occurrence of the spill or release. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 27 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 All other waste, trash, or refuse will be stored in containers at all times and disposed of in an approved county or commercial landfill. 7.0 RESOURCE VALUES AND ENVIRONMENTAL CONCERNS As required, separate and specific studies of resource values and environmental concerns for part or all of the project area will be made as part of the Garfield County Pipeline Devlopment Plan Permit process. . Topics addressed, studied and reported in the sensitive area analysis are to include: • General Project Description • Water Use and Quality • Vegetation and Wildlife • Cultural Resources • Socioeconomics • Geological Resources • Soils • Land Use, Recreation and Aesthetics • Air and Noise Quality • Alternatives • Reliability and Safety • Cumulative Impacts 8.0 STABILIZATION AND REHABILITATION Stabilization and rehabilitation for the project during the construction phase will be as described in the "Cleanup & Restoration" in Section 6.0 Construction Of The Facility above. Following construction and 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. 9.0 OPERATION AND MANTENANCE The pipeline project will be operated and maintained in accordance with standard procedures that will ensure the integrity of the pipeline system. These operation and maintenance (O&M) procedures will be in accordance with safety standards defined in DOT 49 CFR Part 192 and other applicable regulations. O&M of the pipeline will be performed by Bargath, WPRMT and select contract service Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 28 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 personnel. Bargath and WPRMT have operations offices in the project vicinity. O&M personnel will be qualified and trained to conduct their respective duties. The pipeline will be controlled from a single gas control center located at the WPRMT Parachute Creek Gas Plant near Parachute, Colorado. Initially, personnel at the gas control center and in the field will monitor and control the pipeline using manual methods. At a later time, the system will have communication and automation connections and facilities integrated with gas control, downstream processing plants, metering stations, inlet and outlet pressure regulators, upstream compressors stations, side valves and other such facilities. Ultimately, the system may be able to monitor and control all flows, pressures, flow conditions, valve open/close positions and compressor on/off states in a fully automated unattended mode. The entire pipeline ROW will be clearly marked with pipeline markers and at public roads and other locations specified in applicable regulations. Such markings help reduce the possibility of damage to the pipeline as a result of construction or other activities. Upon commissioning of the project, ground patrols will be conducted periodically to inspect the ROW in order to monitor the integrity of the pipeline and the success of restorative measures. Surface travel would generally be limited to periodic valve inspections, corrosion surveys, leak surveys, ROW maintenance, and any pipeline repairs that may be needed. The frequency of patrols will conform to the requirements of DOT regulations. An "Emergency Plan" will be developed in conformance with applicable DOT requirements. The plan will establish written procedures that are intended to minimize the hazards in the event of a gas pipeline emergency. It is anticipated that the plan will address topics such as administrative issues, emergency planning, assignment of responsibilities, handling and evaluating emergency calls, responding to and controlling emergency situations, news media communications, restoration of service, obtaining and reporting emergency information, employee training, liaison with public officials, general public information program, location/inventory of pipeline repair materials and equipment, and lists of emergency telephone numbers and key personnel. 10.0 TERMINATION AND RESTORATION At the end of the pipeline's useful life, WPRMT will obtain all necessary authorizations from appropriate landowners and government agencies to salvage or abandon the facilities. At that time, the pipeline will be depressurized and purged of all combustible materials. All above ground facilities would be separated and removed. All unsalvageable material would be disposed of at an Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 29 of 30 DRG Job #14294 D. R. Griffm & Associates, Inc. Rock Springs, Wyoming 307-362-5028 Last Revised 04/16/07 approved public or private landfill. If the pipeline was to be abandoned in place, open ends of the remaining pipeline would be capped and sealed. The abandoned pipeline would then be filled with an inert media such as water, nitrogen or carbon dioxide at near zero gauge pressure. Alternatively, the decommissioned pipe would be extracted from the ground, cut in to joint lengths, hauled from the site for re -use on other projects or sold for salvage. The sites and rights-of-way from which the above ground facilities and pipe were removed would be re -graded, restored and reseeded as needed to achieve satisfactory reclamation. The abandoned rights-of-way would revert to the then present landowners or controlling agencies. Construction Management Plan 24" Bargath Gathering P/L Williams Production RMT Co. Page 30 of 30 DRG Job #14294 D. R. Griffin & Associates, Inc. Rock Springs, Wyoming 307-362-5028 dhims� Storm Water Management Plan Cottonwood -Webster Mesa 24" Bargath Gathering Pipeline Rabbit Brush Compressor Station Webster Mesa Compressor Station Garfield County, Colorado February 2007 Hiram m� Storm Water Management Plan Cottonwood -Webster Mesa 24" Bargath Gathering Pipeline Garfield County, Colorado Rabbit Brush Compressor Station Webster Mesa Compressor Station Prepared for: Williams Production RMT Company 1058 County Road 215 Parachute, CO 81635 February, 2007 TABLE OF CONTENTS 1.0 INTRODUCTION 1 1.1 PROJECT OWNER/OPERATOR 2 2.0 CONSTRUCTION SITE DESCRIPTION 3 2.1 SITE LOCATION 3 2.2 SITE AREA CHARACTERISTICS 3 2.2.1 Runoff Characteristics and Coefficients 3 2.3 CONTSTRUCTION SITE CHARACTERISTICS 5 2.3.1 Construction Site Areas Description 5 2.3.2 Schedule of Construction Activities 6 2.3.3 Materials Handling, Loading, and Storage Areas 7 2.3.4 Adjacent Property Descriptions 7 3.0 POTENTIAL POLLUTIONS SOURCES 8 4.0 STORM WATER MANAGEMENT CONTROLS 9 4.1 SOIL EROSION AND SEDIMENT CONTROLS 9 4.1.1 Land Grading 10 4.1.2 Straw Bale Check Dams 10 4.1.3 Rock Check Dams 11 4.1.4 Soils Berms 12 4.1.5 Uphill Topsoil Stockpile/Diversion Berm 12 4.1.6 Culvert Inlet and Outlet Protection 12 4.1.7 Right of Way (ROW) Drainage Relief 13 4.1.8 Silt Fence 13 4.1.9 Straw Wattles/Straw Roles 13 4.1.10 Seeding of Disturbed Areas 14 4.1.11 Mulching 14 4.1.12 Erosion Control Blankets 14 4.2 ADDITIONAL BMP REFERENCE 15 4.3 SWMP ADMINISTRATOR 16 4.4 OTHER CONTROLS 16 4.4.1 Waste Management and Disposal 16 4.4.2 Fuels and Materials Management 16 4.4.2.1 Spill Response/Clean-Up Procedures 16 4.4.3 Construction Site Housekeeping 18 4.4.4 Off -Site Soil Tracking 18 5.0 NON -STORM WATER DISCHARGES 19 6.0 FINAL STABILIZATION 20 7.0 INSPECTIONS AND MAINTENANCE PROCEDURES 21 7.1 RECORDS MANAGEMENT 22 8.0 CERTIFICATIONS 23 8.1 OWNER/APPLICANT CERTICATION 23 8.2 CONTRACTOR/SUBCONTRACTOR CERTIFICATION 24 Appendix A Appendix B Appendix C Appendix D Appendix E LIST OF APPENDICES Cottonwood -Webster Mesa Pipeline Map Cottonwood -Webster Mesa Pipeline Storm Water Application Form and Permit Storm Water Inspection Form SWMP Daily Log BMP Descriptions and Installation Details 1.0 INTRODUCTION The Cottonwood -Webster Mesa Pipeline Storm Water Management Plan (SWMP) has been written to comply with the Colorado Department of Public Health and Environment's (CDPHE) General Permit No. COR -03000 and related U.S. Environmental Protection Agency (USEPA) National Pollutant Discharge Elimination System (NPDES) storm water regulations. This SWMP addresses construction activities associated with development of the natural gas resources in the Garfield County area. 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. Construction permits are required for oil and gas activities that disturb one or more acres during the life of the project or are part of a larger common plan of development. The CDPHE considers a common plan of oil and gas development to mean development of several well pads and/or related infrastructure in a contiguous area either during the same time period or under a consistent plan for long-term development. This Cottonwood -Webster Mesa Pipeline SWMP is intended to be periodically updated as is deemed necessary to address planned developments, new disturbances, and other changes needed to manage storm water and protect surface water quality. 1 1.1 Project Owner/Operator The project landowners (listed by company and last names): Exxon Mobil Oil Corp. Puckett Land Company BLM Teter Naugle Clough The project operator is Williams Production RMT Company (Williams). Address: Williams Production RMT Company 1058 County Road 215 Parachute, CO 81635 The Williams contact person(s) for the Cottonwood -Webster Mesa Pipeline Project are Mr. Tom Fiore and Mr. Michael Gardner. Mr. Tom Fiore Plant Manger Williams Companies Office: (970) 285-9377 Mobile:(970) 210-1641 tontliore@willianas.com Mr. Michael Gardner Storm Water Plan Administrator Williams Companies Office:(970) 263-2714 Mobile:(970) 640-1855 Michael.Gardner(jWi lliams.com Williams will be in charge of all aspects of this project. Contractor(s) will do the actual construction and grading but all work will be supervised by Williams and all decisions will be made by Williams. 2 2.0 CONSTRUCTION SITE DESCRIPTION 2.1 Site Location(s) Cottonwood -Webster Mesa Pipeline: The 24" Cottonwood -Webster Mesa Pipeline begins at the eastern termination point of the 30" Cottonwood Gathering Pipeline, within Section 34 of Township 6 South, Range 95 West of the 6th PM, Garfield County, Colorado. The pipeline continues within Township 6 South, Range 95 West through Sections 35, 26, 25, and 24. The remainder of the pipeline will lie within Township 6 South, Range 94 West of the 6th PM, Garfield County, Colorado, including Sections 19, 20, 21, 16, 15, and 14. The pipeline terminates at the Webster Hill Compressor Station (Section 14, Township 6 South, Range 94 West). The pipeline will consist of approximately 8.3 miles of pipeline Right -of -Way (ROW). The ROW will average approximately 75 feet in width during construction (temporary) and 50 feet in width post construction (permanent) resulting in approximately 75.45 acres of land disturbance. The Town(s) of Parachute, Colorado and Rulison, Colorado are the nearest population centers. The only receiving water associated with the Cottonwood - Webster Mesa Pipeline is the Colorado River. Rabbit Brush Compressor Station: The Rabbit Brush Compressor Station will be constructed in Section 32 of Township 6 South, Range 95 West, in Garfield County, Colorado. Construction of the Rabbit Brush Compressor Station will disturb approximately 14.46 acres of land. Webster Mesa Compressor Station: The Cottonwood -Webster Mesa Pipeline will be terminating at the Webster Mesa Compressor Station. The Webster Mesa Compressor Station will be constructed within Section 14 of Township 6 South, Range 94 West, in Garfield County, Colorado. Construction of the Webster Mesa Compressor Station will disturb approximately 14.46 acres of land. 2.2 Site Area Characteristics 2.2.1 Runoff Characteristics and Coefficient Runoff characteristics are based on site topography, soil type, and soil/vegetative cover. Drainage across the pipeline will vary along the length of the pipeline. According to the Natural Resources Conservation Service (NRCS), the soil along the length of the Cottonwood -Webster Mesa Pipeline consists of six general soil units. 3 • Arvada Loam (1-10 percent slopes): Deep, well drained, moderate sloping to steep soils on fans and high terraces. Permeability is slow, and available water holding capacity is high. Runoff is rapid/very rapid and the hazard of water erosion is severe. • Badland: Broadly defined unit that consists of steep to very steep slopes, found in barren land containing a large quantity of intermittent drainages. Water erosion hazard is very severe and erosion is active. • Potts-Ildefonso Complex (3-12 percent slopes): Deep, well drained, gently sloping soils commonly found on mesas and valley sides. Permeability is moderate, and available water holding capacity is high. Surface runoff is slow and the erosion hazard for these soils is moderate. • Nihill Channery Loam (6-25 percent slopes): Deep, well drained, moderately sloping soil, commonly found on alluvial fans and valley sides. Permeability is moderately rapid and available water holding capacity is low. Surface runoff is low and the erosion hazard is severe. • Idlefonso-Lazear Complex (6-25 percent slopes): Deep, well drained, moderately sloping to steep soils on hillsides and mesa breaks. Permeability is moderately rapid and available water holding capacity is low. Surface runoff is medium and the erosion hazard is moderate. • Potts Loam (6-12 percent slopes): Deep, well drained, moderately sloping to rolling soil, commonly found on mesas, benches, and sides of valleys. Permeability is moderate and available water holding capacity is high. Surface runoff is medium and the erosion hazard is severe. 4 The native understory throughout the project area consists mainly of saltgrass, alkali sacaton, wheatgrass, needle and thread grass, sagebrush, indian ricegrass, junegrass, service berry, and bitterbrush. The understory-vegetated ground cover along this project varies from 20% to 100% depending on aspect and gradient (NRCS, 2000). The native overstory canopy consists mainly of the following: One seed juniper, Utah juniper, and gamble oak. Throughout the project area, the estimated runoff coefficient will range from 0.1 to 0.3 (CDOT Stormwater Training Program Manual, 2006). 2.3 Construction Site Characteristics 2.3.1 Construction Site Area Description The vast majority of ground disturbance will be due to pipeline construction. Pipeline corridors are linear features having widths up to 100 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 topographical factors. After a pipeline origin, destination, and preferred route have been identified, the following construction sequence is generally followed: 1. 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 4-5 foot deep trench will be excavated. Trench spoils are cast into a windrow. 6. Pipe welding and placement: The pipe pieces are laid 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. 5 10. Topsoil placement: Topsoil will be moved 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 erosion stability of the reclaimed area. Generally, rolled product will be placed on steep slopes and rolled product and/or rock will be placed at drainage crossings. Once the pipeline has been placed in the trench and backfilled, efforts will be taken to restore the pipeline ROW to its preconstruction conditions or to mitigate for any environmental or other impacts that may have occurred during the construction process Final stabilization is considered complete when 70 percent of the pre -construction ground cover has been re-established. 2.3.2 Schedule of Construction Activities Construction of the necessary improvements and construction of the Cottonwood to Webster Mesa Pipeline is scheduled from July 1, 2007 to TBD. Construction of the Rabbit Brush and Webster Hill compressor stations are scheduled to begin on April 1, 2007 to TBD. Existing and future disturbances are included in this SWMP. BMPs will be installed prior to, during, and immediately following construction as practicable, with considerations given to construction staging, safety, access, and ground conditions at the time of construction. Soil and aggregate materials will be managed so that erosion and sediment transport are minimized. Nearby drainages and water courses will be protected in all cases by appropriate measures. 6 2.3.3 Materials Handling, Loading, and Storage Areas Fuels, pesticides or herbicides, paints or solvents, and other industrial materials associated with construction activities must be handled and stored in a manner as to prevent storm water impacts from occurring. All liquids shall be stored in appropriate containers and properly protected form 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. 2.3.4 Adjacent Property Descriptions Surrounding land use is primarily for oil and gas exploration and production and, to a lesser extent, for seasonal livestock grazing, farming, irrigation pasture, and undeveloped land. 7 3.0 POTENTIAL POLLUTION SOURCES Potential pollution sources associated with construction sites and natural gas development include: • Sediment resulting from erosion of soil stockpiles and other disturbed areas cleared of vegetation • Leakage of fuels and lubricants from equipment and spills from re -fueling • Trash and debris from clearing activities, construction materials, and workers The most common source of pollution from pipeline construction is sediment, which can be carried away from the work site with storm water runoff and impact the water quality of a receiving water body. 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, anti- freeze, hydraulic oil, brake fluid, and grease. Debris from material staging areas, residue from equipment cleaning and maintenance, and solid waste generated from land clearing operations and human activity (trees, brush, trash, etc.) present other potential pollution sources within the construction site. 8 4.0 STORM WATER MANAGEMENT CONTROLS Structural BMPs will be installed, inspected, and maintained as required by law (refer to section 7.0 "Inspection and Maintenance"). This SWMP will be revised as needed to address new disturbances. Depending on the type and location of new infrastructure, there may be a need for inclusion of new and alternate BMPs. In general, new development should be planned with consideration for storm water quality (e.g. minimize disturbed area and maximize distance from surface water drainages, as practicable). Other developments on the property, primarily existing and/or improved roads, not currently or specifically addressed in the SWMP will be periodically checked for erosion and drainage problems. This is especially important for ROW located within 100 feet of surface drainages or creeks. If problems are noted, they should be reported to the Site Manager and/or SWMP administrator. Problem areas may be addressed through road maintenance activities, but will likely need to be addressed through BMPs, which will be installed promptly, and added to the storm water plan as needed. 4.1 Soil Erosion and Sediment Controls The objective of erosion and sediment controls is to mitigate the release of sediments in 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 before and during construction of the Cottonwood -Webster Mesa Pipeline to minimize possible sediment impacts in storm water runoff. The proposed erosion control features include: • Placement of any topsoil stockpiles along the upstream edge of the ROW to divert run-on. • Installation 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). • Installation of straw bale/rock check dams as needed in areas of concentrated flow. • Construction of flumes at drainage crossings. • Placement of rolled products, as needed, depending on site-specific conditions. • Permanent seeding of reclaimed pipeline corridors and areas not needed for long- term work access. The types and location 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 run-on water away from disturbed areas, to control runoff water generated from disturbed areas, or to control erosion by stabilizing the soil surface. 9 • Run-on controls are those features that serve to collect and/or direct run-on water away from disturbed areas. Run-on 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 Land Grading Grading techniques are a non-structural practice implemented for temporary erosion control and will be used to minimize erosion and facilitate infiltration and plant growth. Techniques should include: surface roughening, terracing slopes, water bars to shorten slope length, embankment protection, diversion berms, etc. Steeper slopes can be terraced. Excavated material will be efficiently moved to areas needing fill or stockpiled. 4.1.2 Straw Bale Check Dams Straw bale check dams, at a minimum, will be installed in areas of concentrated flow. Straw bale check dams are temporary structural controls that should be installed at suitable locations along the pipeline ROW. Straw bale check dams will be installed at the following locations: LATITUDE LONGITUDE 39.478722 -107.980009 39.479923 -107.974011 39.477869 -107.988852 39.478960 -107.982591 39.488762 -107.957916 39.490301 -107.954783 39.490766 -107.953774 39.493470 -107.950864 39.493774 -107.950702 39.497238 -107.948807 39.497942 -107.947715 39.498873 -107.946361 39.499872 -107.944533 39.502319 -107.938840 39.502386 -107.938065 39.503046 -107.936626 10 39.510608 -107.926570 39.510984 -107.924177 39.511064 -107.923803 39.512072 -107.922570 39.512366 -107.922420 39.512413 -107.921827 39.511502 -107.918554 39.509344 -107.913472 39.509245 -107.912408 39.509763 -107.910404 39.510132 -107.909315 39.510347 -107.908520 39.511008 -107.906022 39.511502 -107.904073 39.511656 -107.902919 39.512196 -107.900586 39.513029 -107.897281 39.513597 -107.895621 39.520884 -107.872913 39.521718 -107.868252 39.523059 -107.863593 4.1.3 Rock Check Dams Rock check dams are structural controls that will be installed in areas of concentrated flow. Rock check dams may be used instead of straw bale check dams in areas where steep slopes, high flows, or long-term exposure are expected to result in failure or frequent maintenance of a straw bale structure. Rock check dams are permanent BMPs, which will be installed post pipeline construction. Specific locations needing rock check dams will updated into this SWMP as pipeline construction is complete and the ROW has been backfilled. Rock check dams will be necessary at the following location (sl: LATITUDE LONGITUDE 39.497300 -107.948532 39.500474 -107.942745 39.501032 -107942863 39.502732 -107.937061 39.507201 -107.931211 39.509241 -107.929558 39.509258 -107.928970 39.511685 -107.919824 39.511632 -107.919576 11 4.1.4 Soil Berms Soil berms are structural controls that may be used to divert drainage away from areas of concern or to direct flow toward sediment control structures. Where used, soil berms shall be constructed of soil with sufficient fines to minimize flow through the berm. Berms shall be at least 18 -inches tall and will be compacted in place by wheel rolling with suitable rubber -tired, heavy equipment. 4.1.5 Uphill Topsoil Stockpile/Diversion Berm In order to divert surface runoff from up gradient areas away from the pipeline, salvaged topsoil may be placed on the uphill side of the pipeline. The topsoil stockpile may be placed and graded to form a diversion berm that will direct surface water away from the pipeline. Uphill topsoil stockpile and diversion berms are recommended in all areas of steep slopes. 4.1.6 Culvert Inlet and Outlet Protection Installation of culverts is a structural control that may be needed in certain areas where the pipeline intersects ephemeral drainages. The culvert inlet area will include a sediment sump that is at least 4 feet by 4 feet by 1.5 feet deep. The culvert outlet area will include an energy dissipation feature. Acceptable energy dissipation will include rock lining or turf reinforcement matting (TRM). Rock lining will be 2 to 4 -inch diameter rock at least 6 inches deep and having plan dimensions of at least 4 feet wide by 10 feet long. The area of rock lining should be prepared by removing 6 to 8 -inches of soil. The shallow excavation should be filled with rock and the rock secured in-place by bucket tamping or wheel -rolling. The rock outlet should be installed to promote lateral spreading of water as it flows across the rock. Culvert inlet/outlet protection is necessary at the following locations: LATITUDE LONGITUDE 39.508372 -107.931411 39.509037 -107.928404 39.510102 -107.927992 39.510760 -107.925985 12 4.1.7 Right of Way (ROW) Drainage Relief Culverts, rolling dips, terraces, or water bars are a structural control that may be used to provide drainage of water from ROW surfaces as needed to drain low areas or to reduce the amount of water flowing on the ROW surface. ROW drainage relief should be provided as needed and in accordance with generally accepted practices. Depending on the location and type of drainage relief installed, additional sediment control features may be needed such as sediment removal at the inlet and erosion protection at the outlet. ROW drainage relief consists of permanent BMPs which will be installed post construction. Specific locations of necessary ROW drainage relief will be updated into this SWMP as the pipeline construction is complete, and the ROW has been backfilled. 4.1.8 Silt Fence Silt fences are a structural control that will be installed at the down gradient edge of the ROW and other fill slopes located within 100 feet of a surface drainage. Silt fences may also be required in areas where steep slopes below the ROW will likely result in fast flow of water from the location to nearby drainages. 4.1.9 Straw Wattles/Straw Bale Barriers Straw wattles/bales are structural controls that upon implementation will capture and keep sediment on the slopes. Straw wattles/bales are useful to temporarily stabilize slopes by reducing soil creep and sheet and rill erosion until permanent vegetation can be established. Straw bale barriers are necessary at the following locations: LATITUDE LONGITUDE 39.478030 -107.987415 39.478534 -107.980730 39.486543 -107.962326 39.491476 -107.952537 39.492272 -107.951389 39.496332 -107.949956 39.496902 -107.949348 39.498095 -107.947219 39.500188 -107.943874 39.500543 -107.942295 39.501122 -107.942710 39.501233 -107.940999 39.501130 -107.936106 39.508625 -107.931153 13 39.511673 -107.919954 39.511552 -107.919163 39.510140 -107.917130 39.509513 -107.911140 39.511186 -107.905290 39.511616 -107.903198 39.512045 -107.901231 39.521516 -107.869884 39.522592 -107.864819 4.1.10 Seeding of Disturbed Areas Project areas disturbed by construction will be revegetated as a non-structural control as soon as practicable following construction. Areas that will be revegetated will primarily be cut and fill slopes associated with grading activities. The permanent mix, rate, application method, and supplemental materials will be selected by the reclamation contractor. It is anticipated that this will include suitable grass species supplemented by cereal crops. 4.1.11 Mulching Long-stemmed straw or hay mulch is a non-structural control that will be applied evenly at a rate of 1.5 to 2 tons per acre and crimped into the soil. Method of application will depend on the slopes to be mulched. A mechanical crimper is limited to slopes 3:1 and flatter. Hydraulic mulching may be necessary for steeper slopes, difficult installations, and in areas with limited access. Mulching will be applied on all applicable areas along the pipeline ROW. 4.1.12 Erosion Control Blanket Erosion control blankets are porous fabrics and are manufactured by weaving or bonding fibers from organic or synthetic materials. Erosion control blankets are a non-structural control that is installed on steep slopes or in channels to prevent erosion until final vegetation is established. However, blankets can also be used as separators or to aid in plant growth by holding seeds, fertilizers, and topsoil in place. Erosion control blankets are permanent BMPs which will be installed post construction. Specific locations of erosion control blankets will be updated into this SWMP as pipeline construction is complete and the ROW has been backfilled. 14 4.2 Additional BMP Reference The structural and non-structural BMPs listed below are intended to include all BMPs that may be used for gas gathering projects. However, there may be situations where a BMP is needed but not included below or project personnel may need additional information on the use, specifications, and maintenance of BMPs. Additional BMP reference will be obtained using: • "Williams Storm Water and 404 Handbook of Best Management Practices (BMPs)". The RETEC Group, Inc., January 26, 2006. • For oil and gas operations, the Bureau of Land Management and U.S. Forest Service have developed "Surface Operating Standards and Guidelines for Oil and Gas Exploration and Development," "Gold Book." The most recent version (fourth edition) of this is available on the internet at: littp://www.blm.gov./bmp/GoldBook Draft v 12.pdf. • For Construction BMPs the Urban Drainage and Flood Control District, a Colorado Front Range group of city and county agencies has developed a BMP manual that is available on the intend at: http://swcc.state.al.us/pdf/ASWC June 2003 Alabama Handbook _Construction E&S Control.pdf. • For construction BMPs and surface stabilization methods, the Alabama Soil and Water Conservation Committee has developed "Erosion Control, Sediment Control and Storm Water Management on Construction Sites and Urban Areas, Volume 1 Developing Plans and Designing Best Management Practices." This information is available on the intemet at: http://www.blm.gov/bmp/field%20guide.htm • For access roads, the US Forest Service and Bureau of Land Management have developed "Low -Volume Roads Engineering, Best Management Practices Field Guide," which is available on the internet at: lutp://www.blimgov/brup/field%20guide.htin 15 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 • 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 • Supervising spill response and housekeeping measures 4.4 Other Controls 4.4.1 Waste Management and Disposal Pipeline construction and development will generate various other wastes. Other wastes may include the following: • Trees and shrubs from clearing operations • Trash and debris from construction materials and workers • Sanitary sewage Each of these wastes will be managed so as to not contribute to storm water pollution. Trees and shrubs will be stacked along the downgrading slope 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 contained in portable toilets or other storage tanks with waste materials and regularly pumped and transported off-site for disposal at approved facilities. 4.4.2 Fuels and Materials Management Fuels and materials management will comply with Williams policy and procedures. 4.4.2.1 Spill Response/Clean-Up Procedures In the event a spill occurs during construction, immediate spill response will consist of the following procedures: • Stopping the spill • Stopping the spill from leaving the ROW • Contact a Williams Environmental Coordinator immediately 16 Petroleum Products Petroleum products which may be present at the construction site include: gasoline, diesel fuel, lubricant oils, hydraulic oils, used oils, and solvents. Gasoline and diesel fuel will be stored in portable storage tanks with secondary containment. Lubricant, hydraulic, and miscellaneous oils and solvents will be stored in 55 -gallon or smaller containers. Pollutants from petroleum products used during construction activities adhere easily to soil particles and other surfaces. In case of a spill or leak, soils contaminated with petroleum products will be contained and removed to a proper disposal site. Proposed soil erosion and sediment control practices will aid in retention of spills or leaks. Use of secondary containment and drip pans will reduce the likelihood of spills or leaks contacting the ground. Proposed maintenance and safe storage practices will reduce the chance of petroleum products contaminating the pipeline ROW. Oil wastes such as crankcase oil, cans, rags, and paper containing oils will be placed in proper receptacles and disposed of or recycled. An additional source of petroleum contamination is leaks from equipment and vehicles. Routine daily inspections will be conducted to identify leaks and initiate corrective actions, if needed. The following guidelines for storing petroleum products will be used: • All product containers will be clearly labeled. • Drums will be kept off 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 immediately cleaned up and contaminated materials will be properly stored on site until they can be disposed of in accordance with applicable regulations. • Storage areas and containers will be regularly monitored for leaks and repaired or replaced as necessary. Personnel should be reminded about proper storage and handling of materials during weekly subcontractor safety meetings. Other Chemicals Products Management Additional materials may be used and stored on site for use during construction of the pipeline. These materials will be stored appropriately and managed to minimize spills and leaks. Storage areas will be regularly inspected and any minor spills or leaks will be cleaned up immediately. Materials Management The construction contractor will maintain a lay -down or staging area for equipment and materials storage on site. These areas will be maintained with good housekeeping and will be inspected on a regular basis for spills, leaks, and potential contamination. 17 4.4.3 Construction Site Housekeeping Housekeeping will consist of neat and orderly storage of materials and containerized fluids. Wastes will be temporarily stored in sealed containers and regularly collected and disposed of at suitable off-site facilities. If spills occur, prompt cleanup is required to minimize any co -mingling of waste materials with storm water runoff. Routine maintenance will be limited to fueling and lubrication of equipment. Drip pans will be used during routine fueling and maintenance to contain spills or leaks. Any waste product from maintenance will be contained 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. Cleanup of trash and discarded materials will be conducted at the end of each work day. Cleanup will consist of patrolling the ROW, access areas, and other work areas to pickup trash, scrap debris, other discarded materials, and any contaminated soil. These materials will be disposed of appropriately. 4.4.4 Off -Site Soil Tracking Off-site soil tracking will be limited by installing a tracking pad at the point of beginning and the point of termination of the project. The tracking pad will consist of gravel/cobble stone with a 4" to 6" diameter average. The pads will be as wide as the ROW (approximately 100 feet), and 70 feet long. Maintenance of the tracking pads will occur as necessary and additional gravel will be applied. 18 5.0 NON -STORM WATER DISCHARGES No non -storm water discharges are anticipated from the project. This project intersects three perennial streams; however, these streams will be flumed briefly until construction surrounding them is completed. Possible exceptions include fire prevention/suppression and dust control activities. 19 6.0 FINAL STABILIZATION Areas which have been disturbed are considered to be stabilized when a uniform vegetative cover with a density of 70 percent of the pre -disturbance levels has been established or when an equivalent permanent, physical erosion reduction method is in place. Areas which are not used for facilities, access roads, material storages yards, or other work areas will be stabilized with vegetation. Areas that are stabilized with vegetation will be considered to have achieved final stabilization when a uniform stand of vegetation with a density of at least 70 percent of the pre -disturbance has been established. Other Areas that may include facilities, access roads, material storage yards, and other work areas will be stabilized with the use of permanent, physical erosion reduction methods. 20 7.0 INSPECTIONS AND MAINTENANCE PROCEDURES To meet requirements of the General Permit, inspection and maintenance of erosion and sediment controls must occur during the project. Continued inspection and maintenance is required for specific structures after construction is completed. The inspection program will include the following: 1. A qualified person familiar with the SWMP and control measures will conduct the inspections. 2. Inspections will cover these areas of the construction site: • Disturbed areas without stabilization • Material storage areas • Check dams • Silt fence • Surface water diversions • Down -gradient areas • New access roads • Locations where vehicles enter or exit the site. 3. Inspections will occur at least once every 14 calendar days and after a significant precipitation or snow melt event that could cause erosion. 4. Permanently stabilized areas will be inspected at least once per month. 5. A log of inspections will be maintained. 6. Disturbed areas and material storage areas that are exposed to precipitation will be inspected for evidence of pollutants entering nearby drainages. 7. 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. 8. Roads used for vehicle access will be inspected for evidence of off-site sediment transport. MAINTENANCE 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 as soon as possible and prior to the next anticipated storm event. Williams 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. 21 7.1 Records Management All inspection forms and revisions to the Cottonwood -Webster Mesa Pipeline will be maintained and documented on the inspection log. The completed inspection forms will be placed into the SWMP upon inspection. The records management program will include the following: 1. Following each inspection, the SWMP will be modified as necessary to include additional controls designed to correct identified problems. 2. 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 reaches final stabilization. 3. Actions taken to modify any storm water control measure will be recorded and maintained with the SWMP. 4. 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, Part E. 1. 22 8.0 CERTIFICATIONS 8.1 Owner/Applicant Certification I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Signature: Name: Mr. Tom Fiore Title: Plant Manager Date: Operator Name and Address: Williams Production RMT Company 1058 County Road 215 Parachute, CO 81635 Site Name and Location: Cottonwood -Webster Mesa Pipeline Township 6 South Range(s) 95 and 94 West Garfield County, Colorado Rabbit Brush Compressor Station Township 6 South Range 95 West Garfield County, Colorado Webster Mesa Compressor Station Township 6 South Range 94 West Garfield County, Colorado SWMP Prepared by: HRL Compliance Solutions, Inc. 216 North Avenue, Suite #1 Grand Junction, CO 81501 Phone: 970.243.3271 23 8.2 Contractor/Subcontractor Certification All contractors and subcontractors that will perform construction activities that could impact storm water will be familiar with the SWMP and will sign the following certification. Contractor Certification I certify under penalty of law that I understand the terms and conditions of the SWMP and associated CDPS General Permit that authorizes storm water discharges associated with construction activity identified as part of this certification. Signature: Name: Title: Date: Representing: Company: Address: Address: Phone: 24 APPENDIX A COTTONWOOD-WEBSTER MESA PIPELINE MAP