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HomeMy WebLinkAbout1.0 ApplicationSPECIAL USE PERMIT IN GARFIELD COUNTY Skinner Ridge 36-lB Compressor Section 36, Township 5 South, R a nge 98 Wes t of the 61h PM in G a rfield County, Colorado Octob er 200 8 Prepared for: Chevron Chevron U.S .A., Inc. 11111 S. W i lcrest Houston , TX 770 99 Prepa red by : ~ (ORDILLERAN Cord ill eran Comp li ance Se rvices, In c. 826 2 1 Yi Road Grand Jun cti on , Co lorado 8 1505 RECEIVED GARFIELD COUNTY OCT 2 3 2008 Building & Planning Department th GAkt· IE:LO COUNTY 108 8 Street, Suite 201 BUILDING & PLANNING Glenwood Springs , Colorado 81601 Telephone: 970 .945 .8212 Facsimile: 970 .384 .3470 www.garfield-county.com I SPECIAL USE PERMIT Doc. #SLAP 11-/ 4 O§ GENERAL INFORMATION (Please print legibly) ~Name of Property Owner: Chevron U.S.A . Inc. ~Mailing Address : 760 Horizon Drive Telephone: 970-257-6042 ~City: Grand Junction State: ~C~O __ Zip Code: 81506 Cell : 970-589-5036 ~E-mail address: jjustus@chevron .com Fax: 970-245-6489 ~Name of Owner's Representative. if any (Attorney. Planner. etc): ~Tim Dobransky, Cordilleran Compliance Servi ces , Inc ~Mailing Address: 826 21 Y2 Road Telephone : 970-26 3-7800 ~City : Grand Jun ction State: CO Zip Code: 81505 Cell : 970-27 0-298 6 ~E-mail address: timdobransky@cordcomp .com Fax: 970-263-7456 ~Description of Special Use Requested : Addition of compressor unit & ancillary equi pme nt to the existing 36 -1 B compressor station (Industrial Support Fa ci lity -Material Han dling of Natural Resources) ~Street Address I General Location of Property: 36-1 B Compressor Stat ion. located appro x imately 20 mil es NW of the Town of De Beque off of County Roads 204 & 2 11. ~Legal Description: Lo ca ted in the SE/4 SW/4. Section 36 . T SS . R98W, 61h PM See comple te lega l d escription in Appendix A of attac hed narrative ~Assessor's Parcel Number: .f. 1 ~ Z -~ .f. 1 -Q Q -Q Q § ~E x isting Use: Min eral resource development and dry land rang e . ~Property Size (in acres): 54 000 Zone District: Reso urce /Lands (R/L} I. APPLICATION SUBMITTAL REQUIREMENTS As a minimum, specifically respond to all the following items below and attach any additional information to be submitted with this application: 1. Please submit, in narrative form, the nature and character of the Special Use requested. Submit plans and supporting information (i.e. letter from responsible agencies). Include specifications for the proposed use including, but not limited to, the hours of operation, the number and type of vehicles accessing the site on a daily, weekly and/or monthly basis, and the size of any existing and/or proposed structures that will be used in conjunction with the proposed use, and provisions for electric power service and any other proposed utility improvements. Be specific. 2. If you will be using water or will be treating wastewater in conjunction with the proposed use, please detail the amount of water that would be used and the type of wastewater treatment. If you will be utilizing well water, please attach a copy of the appropriate well permit and any other legal water supply information, including a water allotment contract or an approved water augmentation plan to demonstrate that you have legal and adequate water for the proposed use. 3. Submit a site plan /map drawn to scale that portrays the boundaries of the subject property, all existing and proposed structures on the property, and the County or State roadways within one (1) mile of your property. If you are proposing a new or expanded access onto a County or State roadway, submit a driveway or highway access permit. 4. Submit a vicinity map showing slope I topography of your property, for which a U.S.G.S. 1:24,000 scale quadrangle map will suffice. 5. Submit a copy of the appropriate portion of a Garfield County Assessor's Map showing all subject property and public and private landowners adjacent to your property (which should be delineated). In addition, submit a list of all property owners, private and public landowners and their addresses adjacent to or within 200 ft. of the site. This information can be obtained from the Assessor's Office. We will also need the names (if applicable) of all mineral interest owners of the subject property, identified in the County Clerk and Recorder's records in accordance with §24-65.5-101, et seq. (That information can be found in your title policy under Exceptions to Title). 6. Submit a copy of the deed and a legal description of the subject property. 7. If you are acting as an agent for the property owner, you must attach an acknowledgement from the property owner that you may act in his/her behalf. 8. Submit a statement that specifically responds to each of the following criteria from Section 5.03 of the Zoning Regulations: (1) Utilities adequate to provide water and sanitation service based on accepted engineering standards and approved by the Board of County Commissioners shall either be in place or shall be constructed in conjunction with the proposed use. (2) Street improvements adequate to accommodate traffic volume generated by the proposed use and to provide safe, convenient access to the use shall either be in place or shall be constructed in conjunction with the proposed use. (3) Design of the proposed use is organized to minimize impact on and from adjacent uses of land through installation of screen fences or landscape materials on the periphery of the lot and by location of intensively utilized areas, access points, lighting and signs in such a manner as to protect established neighborhood character. 9. Depending on the type of Special Use Permit requested, you may need to respond to additional review standards in the Garfield County Zoning Resolution Section 5.00 [Supplementary Regulations]. This may include uses such as industrial uses [section 5.03.07 & 5.03.08], Accessory Dwelling Units [section 5.03.21], Utility line/Utility Substations, etc. Specific sections of the Zoning Resolution can be located on the Garfield County web site at http://www.garfield- county.com/building and planning/index.him or call this office. 10. A $525.00 Base Fee: Applicant shall sign the "Agreement for Payment" form and provide the fee with the application. 11. Submit 3 copies of this completed application form and all the required submittal materials to the Building and Planning Department. Staff will request additional copies once the Special use permit application has been deemed technically complete. II. PROCEDURAL REQUIREMENTS (The following steps outline how the Special Use Permit Application review process works in Garfield County.) 1. Submit this completed application form (pages 1-4), base fee, and all submittal requirements to the Garfield County Planning Department. It will be received and given to a Staff Planner who will review the application for technical completeness. 2. Once the application is deemed technically complete, the Staff Planner will send you a letter indicating the application is complete. In addition, Staff will also send you a "Public Notice Form(s)" indicating the time and date of your hearing before the Board of County Commissioners. Prior to the public hearing, Staff will provide you with a Staff Memorandum regarding your requested Special Use Permit. (If Staff determines your application to be deficient, a letter will be sent to you indicating that additional information is needed to deem your application complete.) 3. It is solely the Applicant's responsibility to ensure proper noticing occurs regarding the requested Special Use Permit for the public hearing. If proper notice has not occurred, the public hearing will not occur. Notice requirements are as follows: a. Notice by publication, including the name of the applicant, description of the subject lot, a description of the proposed Special Use and nature of the hearing, and the date, time and place for the hearing shall be given once in a newspaper of general circulation in that portion of the County in which the subject property is located at least thirty (30) but not more than sixty (60) days prior to the date of such hearing, and proof of publication shall be presented at hearing by the applicant. b. Notice by mail, containing information as described in the paragraph above, shall be mailed to all owners of record as shown in the County Assessor's Office of lots within two hundred feet (200') of the subject lot and to all owners of mineral interest in the subject property at least thirty (30) but not more than sixty (60) days prior to such hearing time by certified return receipt mail, and receipts shall be presented at the hearing by the applicant. c. The site shall be posted such that the notice is clearly and conspicuously visible from a public right-of-way, with notice signs provided by the Planning Department. The posting must take place at least thirty (30) but not more than sixty (60) days prior to the hearing date and is the sole responsibility of the applicant to post the notice, and ensure that it remains posted until and during the date of the hearing. 4. The Applicant is required to appear before the Board of County Commissioners at the time and date of the public hearing at which time the Board will consider the Special Use request. In addition, the Applicant shall provide proof at the hearing that proper notice was provided. 5. Once the Board makes a decision regarding the Special Use request, Staff will provide the Applicant with a signed resolution memorializing the action taken by the Board. Following the Board's approval, this office will issue the Special Use Permit to the applicant. If the Board's approval includes specific conditions of approval to be met, this office will not issue the Official Special Use Permit certificate until the applicant has satisfied all conditions of approval. The Special Use Permit approval is not finalized until this office has issued the Official Special Use Permit certificate signed by the Chairman of the Board of County Commissioners. I have read the statements above and have provided the required attached information which is correct and accurate to the best of my knowledge. Io -;;;_3 -a ~ (Signa · e of applicant/ (Date) CORDILLERAN October 23, 2008 Garfield County Planning Department 109 81h Street, Suite 401 Glenwood Springs, CO 81601 Subject: Skinner Ridge 36-IB Compressor Special Use Permit To Whom It May Concern: 826 21 % Road Grand Junction, CO 81505 T: 970.263.7800 F: 970.263.7456 Chevron U.S.A., Inc. (Chevron) is seeking approval of a Special Use Permit in Garfield County, Colorado for the sole purpose of permitting an additional natural gas compressor on the existing Skinner Ridge 36-1 B ompressor station location. Cordilleran Compliance Services Inc. has been retained by Chevron to complete the application process for the Skinner Ridge 36-IB Compressor. Three (3) copies of the application materials are included for review by the Garfield County Building Department Office in Glenwood Springs. Please contact me at 970.263.7800 with any questions that you may have regarding this permit. Thank you for your time and consideration. Sincerely, Tim Dobransky Project Manager Enclosures: as described Cordilleran File No. 8333 Cordilleran Compliance Services, Inc. Grand Junction, CO • Denver, CO Environmental Consulting Engineers and Scientists CHEVRON USA, INC 36-1 B COMPRESSOR UNIT 1. GENERAL PROJECT DESCRIPTION Chevron USA, Inc. (Chevron), requests a Garfield County Special Use Permit (SUP) for the addition of a compressor unit & ancillary equipment to the existing 36-1 B compressor station (industrial support facility). The 36-1 B compressor station is covered under the [Chevron Piceance Valley Pipeline-Administrative Permit# 712207] and is located approximately 20 miles northwest of the Town of DeBeque at an elevation of approximately 6,000 feet (Figure 1). The compressor station is accessed via Garfield County Roads 204 and 211 north of the Town of DeBeque and then via a private road into the facility. The facility is currently used to gather and transfer natural gas from the Skinner Ridge into nearby market lines. The addition of the compressor unit and ancillary equipment will boost the rate and capacity at which the natural gas is moved. Details of this request along with the information required by Garfield County's SUP application and Sections 3.10.04, 5.03, and 9.02 of the Garfield County Zoning Resolution of 1978, as amended, are provided below. Figure 2 provides a compliance matrix identifying the sections of this application that address each of Garfield County's requirements. 2. PROJECT LOCATION AND PROPERTY OWNERSHIP The compressor will be located at the 36-1 B compressor station in the SE/4 SW/4 of Section 36, Township 5 South, Range 98 West, 5th Principal Meridian, Garfield County, Colorado (Figure 1). The compressor station is located within a 4312-acre parcel owned by Chevron. This property is located in the gentle slopes and lower valley floor zone of the Resource/Lands zone district and is not in a platted subdivision. The majority of the adjacent properties are currently undergoing oil and gas development. The nearest municipality is the Town of DeBeque, approximately 20 miles to the southeast, and the nearest residence, owned by Chevron, is located approximately 2.5 miles to the south adjacent to Hiner Gate (Figure 3). The location of the 36-1 B compressor station is on property that is owned by Chevron; a legal description of the property is provided in Appendix A. Copies of deeds demonstrating ownership of this property are also contained in Appendix A. Appendix B contains an authorization letter allowing Cordilleran to represent Chevron during this permit process. Copies of the applicable maps from the Garfield County Assessor's Office are contained in Appendix C, and a map summarizing the adjacent property ownership is provided in Figure 3. Appendix D provides lists of surface or mineral owners that require notification of this application. A signed Agreement to Pay Form is included in Appendix E. 3. DETAILED PROJECT DESCRIPTION This section provides details of the proposed design, operation, and ultimate reclamation of the compressor station. This section addresses all of the requirements specified by the Garfield County Zoning Resolution of 1978, as amended, as indicated on Figure 2. 3.1 Site Design and Operation The proposed additional compressor unit and ancillary equipment will be installed on an already existing compressor station. The 36-1 B site was originally permitted through the Colorado Oil and Gas Conservation Commission (COGCC) as a well site in 2005. Drilling was never initiated at the site and it became the 36-1 B compressor station in 2006 covered under the [Chevron Piceance Valley Pipeline-Administrative Permit # 712207]. Site layout and design information for the proposed additional compressor to be installed is provided in Appendix F. This existing facility consists of a disturbed area of approximately 2.23 acres which is a graded surface utilized for operation of the facility. The areas impacted by the 36-1 B compressor station and proposed on-site modifications are located on the COGCC approved SKR 598-36-1 well pad. Reclamation security for the location will be under the jurisdiction of the COGCC. The modification of the 36-1 B Compressor station will involve the addition of a Caterpillar gas-driven compressor and a NATCO emission-free dehydrator skid (Appendix F). The compressor station is accessed via Garfield County Roads 204 and 211 north of the Town of De Beque and then via a private road into the facility (Figure 1). No new access to a County or State roadway will be required. No water supply wells are located on this site, nor are any water supply wells planned in the future. No permanent water or sanitation utilities will be constructed. Installation at the site will begin upon approval of this application and is expected to take approximately 2-3 weeks to complete. 3.2 Hours of Use and Traffic Considerations The 36-1 B compressor station is accessible to Chevron personnel and contractors 24 hours-a-day, 365-days-a-year. The facility will generally be unmanned and will be operated remotely. It is estimated that one light truck will access the facility each day to perform inspections and maintenance. An analysis of the traffic anticipated to be generated by this project is provided in Appendix G. As indicated in that analysis, the modification of this facility will result in a short-term, minor impact to traffic on County Roads 204 & 211. The continued operation of the facility is not expected to change traffic volumes. The compressor station is accessed via Garfield County Roads 204 and 211 north of the Town of DeBeque and then via a private road into the facility (Figure 1). No new access to a County or State roadway will be required. As the 36-1 B Compressor station is located entirely on Chevron property approximately 2.5 miles from the end of County Road 211 it is expected that all construction and operations personnel will park on site and will not block or hinder normal traffic on County Road 211. All activities on this site will be conducted out of the right-of-way of County Road 211, and all loading and unloading of vehicles will be conducted out of the public right-of-way. Chevron has prepared a comprehensive emergency response plan for all of its operations. The comprehensive plan has been submitted to the Garfield County Emergency Operations Coordinator for review, and a summary of that plan is provided in Appendix H. 3.3 Utilities and Sanitation Portable toilets will be provided during construction and operation and will be serviced by Down Valley Septic and Drain (Appendix I). No other utilities are planned or will be required for this facility. 3.4 Impact Mitigation The primary impacts potentially associated with this facility are - • Traffic and associated impacts • Noise As discussed in the previous section, the modification of this facility will result in a short- term, minor impact to traffic on County Roads 204 & 211. The continued operation of the facility is not expected to change traffic volumes. Chevron will implement the following measures to minimize impacts to transportation and roads: • Control dust along unsurfaced access roads and minimize tracking of soil onto paved roads, as required by the CDPHE Construction Stormwater Permit. • Comply with county and state weight restrictions and limitations. • Limit construction and operation traffic speeds to a low and reasonable level. • Keep dusty, exposed areas damp with water or a magnesium-chloride solution or other dust suppressant. An area-wide Stormwater Management Plan (SWMP), detailing the use of Best Management Practices (BMPs), has been prepared for the Skinner Ridge area and a construction permit application was submitted to the Colorado Department of Public Health and Environment (CDPHE). Implementation of the SWMP will ensure that activities conducted at the site comply with stormwater management regulations as required by Garfield County, the State of Colorado, and the United States Environmental Protection Agency. Implementation of these plans also ensures that construction and operation of this facility will not impact surface runoff, stream flow, or groundwater. In addition, no flammable or explosive solids or gases will be stored on site. Furthermore, the SWMP outlines housekeeping procedures to prevent materials and wastes from being deposited on the property in such a manner that they may be transferred off the property by any reasonably foreseeable natural cause or force. Some of these measures are: • Storing materials and containerized fluids in a neat and orderly manner; • Placing any wastes requiring temporary storage in sealed containers, then collecting and disposing containers at suitable off-site facilities; and • Containing sanitary wastes in portable toilets, which will be pumped on a regular basis. As indicated in the agreement provided in Appendix H, waste will be transported and disposed of at an approved facility. Chevron contracted with Westwater Engineering to prepare a Noxious Weed Management Plan for all of the company's operations. This plan is included in Appendix J. The potential impacts to wildlife from this facility are discussed in the Wildlife Assessment and Mitigation provided as Appendix K. That assessment discusses several mitigation measures that could be employed. No smoke or glare would be produced as a result of this modification. Minor vibration would occur from operation of the compressor engines; however, vibrations would not be noticeable at the property line. Lighting will only be required during unscheduled nighttime maintenance and all lights on the property will be pointed downward and screened to prevent direct reflection on any adjacent property. Air quality permits from the Colorado Department of Public Health and Environment -Air Pollution Control Division will be obtained, as required for the Caterpillar gas-driven compressor Appendix L provides an analysis of the noise that will be generated during the operation of this facility. As indicated in that analysis, the facility will be operated in compliance with the noise standards set forth in the Colorado Revised Statutes. Adjacent property will not be affected and a pubic nuisance or hazard will not be created. 3.5 Site Reclamation This existing facility consists of a disturbed area of approximately 3.1 acres which is a graded surface utilized for operation of the facility. The areas impacted by the 36-1 B compressor station and proposed on-site modifications are located on the COGCC approved SKR 598-36-1 well pad. Reclamation security for the location will be under the jurisdiction of the COGCC. FIGURES FIGURES 0 Compressor Site (not to sca le) --PrivateRoad = County Roads 0 0 .250.5 2 •-==::::::m--c:::==::::::m--Miles 1 1.5 1 inch •• 1 miles 36-18 COM PRESSOR S IT E LOCATI O N MAP FIG URE 1 CHEVRON USA , IN C GARFIELD COUNTY COLORADO REVI SION DATE: h 0/16/01 ~ REVI SION NUMBER:I 00 DRAIM'/ BY: LS APPROVED BY: I TO C ORD ILLE RAN '' :Jl I=· A~ -.o:Mr nl\l!\J LEGEND ~ SEVERED MINERA LS t@ CHEVRON MINERAL LEASE TO WILLIAMS m CHEVRON MINERAL LEASE TO BERRY r' ~ ~ ~~ CHEVRON MINERAL LEASE TO MARATHON Adjacent Parcel Owners hip and CheVJon Mineral Lease Map F igure 3 URS M ldContl nent/Al••ka SBV Chewon N orth A merio• REVlS/ONS AAEA PROPUUY 1.HOUE ; PROPERTY COMMotl PftOJE:CT: ORA'MOO· P&SR·AU.RGL-MAP~S-00000-000\4-00 (;(llJ CENTER ..... FIGURE 2 COMPLIANCE MATRIX OF GARFIELD COUNTY REQUIREMENTS AND APPLICABLE SECTIONS OF THIS SUP APPLICATION Garfield County Requirement Section of SUP Aoolication SUP Aoolication Submittal Requirements 1. Plans, Sunnortina Information, Soecifications 3, Annendix F 2. Water and Wastewater 3.1, 3.3 3. Site Plan 2, Fiaures 1 & 3 4. Vicinitv Map Fiaures 1 & 3, Aoox. F 5. Assessor's Mao, List of Prooerty/Mineral Owners 2, Aooendices C and D 6. Deed and Leaal Descriotion 2, Annendix A 7. Aaent Acknowledgement Aooendix B 8.(1) Water and Sanitation 3.3 8.(2) Street lmorovements 3.2, Annendix G 8.(3) Impact to Adjacent Lands 3.4 9. Additional Review Standards Other requirements listed below 10. Fee & Aareement for Pavment Annendix E Section 3.10.04 -Zoning Resolution of 1978, as amended 3.10.04 Required Setback 3.1 Section 5.03 -Zoninq Resolution of 1978, as amended 5.03(1) Adequate Utilities 3.3 5.03(2), 5.03.12 Street lmorovements 3.2, Annendix G 5.0313) lmoact to Adiacent Lands 3.4 Section 5.03.07 -Zoning Resolution of 1978, as amended 5.03.07 1) lmoact Statement 3 5.03.07 2 (A) Site Rehabilitation Plan 3.5 5.03.07 2 (8) Rehabilitation Plan Security 3.5 5.03.07 2) (C) lmoact Mitiqation 3.4 Section 5.03.08 -Zoning Resolution of 1978, as amended 5.03.08 1 Sound 3.4, Aooendix L 5.03.08 2 Vibration 3.4 5.03.08 3 Air Emissions 3.4 5.03.08 4 Emission of heat, alare, radiation and fumes 3.4 5.03.08 6\ Water Pollution 3.4 Section 9.02 -Zoning Resolution of 1978, as amended 9.02.01 Annlication and Sunnortina Information All Sections APPENDIX A PROOF OF OWNERSHIP 0 Compressor Location (not to scale) Par ce l Ownership -Private Road D Chevron Tract A D Lot s -Chevron Tract B -Chevron Tract C l25:Ql Chevron t ~BLM r 0 0.125 0.25 I ---=====:::::i Miles PARCE L OWNE RS HIP MAP COMPRESSOR SIT E 36-18 CHEVRON U.S .A. INC. GARFIELD COUNTY, CO LORADO REVISION D AT E: 10/115.()8 ~ REVISION NUMBER ' 00 DRAWi BY: LS APPROVED BY: TD (ORDILLERAN ~KO J C:v # ~-. .. ....... SC A t-' A S S H i TractB l 2 . ' WARRANTY DEED 3 XNOYI ALL MEU B'i THESE PRESENTS! 4 TltA'l' I), D. BOSWELL, Ll!:OlJA E, l30S\YELL Md ERllEST B .• BOS\'IBL , 5 of the count, of Gorfield, State of Colorado, .for the conaLderci.tion 6 of Forty Thousand Dollars ($40 1 000.CO) in hand paid, ho1•111by sell 1 and convoy to PACIFIC YIESTERN C-IL COHPORATION, a Delawaro oorporo. .. -8 tion duly e.uthor1t.ed to transact intrastate bUsln6SB in tho Sliato 9 or colorado, tho following described real property situate in the 10 county of oar1'iold1 state of Colorado, to .. wlt; ·1· . . ; : : . . I . : : ! : . . ! ' -. ~·: .. ~··· ···- 26 27 26 29 30 31 32 Tracts 103 and 104, in Township 5 south, Range 90 west of the 6th p, M., and Tre.ot 106, in Township 5 west and in Township 6 south, Rlinge 9B V(s::it of the 6th p, Mo 1 as auoh 'l'l'O.Ots a1•e shown on supplemental Plat ahoY1ing T-raot Segregat1ons 1n Sections 25 1 26, 27, 34 1 35 and 36 1 Independent Resurvey Township 6 south, Range 98 west of the 6th P. M• colorado 1 • a.p"proved by the 9ffioe o.r the u. s. supervisor o:r surve1s on April 101 l926, md aooopted by the Depart~ent of the Interior, General Land ot.rico, on ootober 28, 1926; and that part of T~aot 40 in Township 6 south, Range 98 west of 6th p. M., doaoribed undor the original aurve7 as the SE/4 of SW/4 of Section 4 and HE/4 of 'tWl/4 of section ~, !n Township 6 south, Range 98 west of 6th P• M·. as such Traot le shown on supplemental Plat of Traot Segregations in seotlona 4 1 6 1 6, ?, 6, g, 161 17 and 18 1 Jndependent Resurvey Township 6 South, Re.nge 98 Vies t ot the 6th p. M· approved by the offica or the u. s. suporvie:or or surveys, on December 19, 1925, and aoOf:lpted by tho Department of the Interi9r, Genere.l tand Otfioe, .on February 27, 19:;!6, oonta1n1ng 397.40 aoree. (Undo1• original surveys the above lands are described as sw/4 of Section 331 township 6 pouth~ Ranae 98 )'lest or the 15th P. M• J H/2 SW/4~ $W/4 NN/4,. SB/4 sw/4.J and 4ot 4/in seot1on 4, r.ot 1 in Section 6 and NE/4 NYI 4 in Section 9 1 Township G south, Range {18 west ot the 6th p. Ith) Together with all ditoh and water rights appurtenant to eaid lNldS or used in connection therewith, and especially, but not limited to, the Ho A• Newton pitoh and the parkas Ditoh, wlth their respective rlghts and priorities; 1 2 3 ·• . ' .. ~ -~·-. - ,,~· Book 2;7 . · , . Pa e lJ8 g Also together with such grazing ri4hts or pr1v·!1eges as are held in· oonneot!ori-ther..e.---· - with upon publio domain undiitr the Taylor Gra11ing Act. 4. Together with. all buildings and improvements on said lands o.n4 6 6 1 e 9 13 14 16 16 . \ ' -\'."J.? .• 18 '19 20 . . . wi);h all its appurtenances, and warrant t:t, t;Ltie to the same. Signed and delivered this ,!~---day of February, 1951. ln the pre8ence 0£. STATE or cot.O~ADO . ! ss •. County of IJJteMv ~he foregoibg inatrument was acknowledged beforl3' me this ~: . day O! ~eb~arr 1 1951 1 by D. B. Boswell, Leon& E, Boawell and' B. Boswell. orric"ial seal. Notary ~ubl-ic -2 12tlo(ded Q;oo~ 2ct 2 0 .. PCA5G4+1 OZ&'l'IPJOA.T11 or -UµmDJUHT 01 ZRT!l'IOAU or IHO'OJIPO~A!!IOlf ·OP ~A 1110 WHTlll! OIL DOBPOliT!Oll .............. _~ 1. l i . .,, ~lB ____ ,, __ ------------ \_ -·-·-·-· --·-~ .. ,. I \, • : ~ '1~ ... ', ,1 ... . . ,.. . . ~~·; .: :, "."~. <.:\ .~·:, 'ift~'·.·· .1o'' { • :· ····" ,• -· ' : !: .. . :·· _,, '· .. ) . 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' 11.1.t:lflll \\'t-UJ:~ 01t1 CofJl:IM!lC'l."I' l'\i;il'H' wi:.~1 K lt OIL UJIO'(lk.\Tm:-> t,1lltl'C M.\tr{ Jl'.\l Hy ~:w111 H'M•1u l1ll .. ~l 1udlt1tl Qu.tuu· F. K1.1ta · 8"'"''1 I.loo~ 29:: p"~· 4%9 . nit • · UH .. \\\',\Ml: ,; .. . .. -···· s Jh:' Jt lh:1u u111i1M\ 1l1nl 1111 thlA !1"1b dnr of Apri~ A.. D. m~ 111•r1-om1ll11111110 t11.1fi1t11 Utt.•, n Xhh1ir l'nlili~ In n111\ for tbtto\IDlf a.ad iill1li 1 11f11rl11ttl11, J.:>111. K1.l•t11 1 n \'k'C<l't<-d1!1:11t nf 1'ae1Rd '\'~•ltn Oil t ~ir1inrull11111 111111 < '11.u~_.~ lo\ l\11L'tr1 8~ri:lt1Jy ot l111d1lo '\'t.1lun tlll t'1t1111rnllo11 n 1<t•r1111rttt111n 11t ll1l• Hfnll) flf J1tT11WA~ tM fflrp')- tnli1111 11, .. ,.,1111·1 lu nm' \\'hltJ1 t'Xf't'lih,J 111\1 fouacoh111 euUAtalr, J,:w1"'11to1111• JI\' •1111111)• tu 1~ ~llrh, :uul ni~y, lhu ul1( .tj>1u. Kt.tnn,.at tlll'fl \'ln••l 11t•J1J NI( 111111 911.\llL'.'o ••• Kttt'l'I, nl ludt BffAllf11 d'Q)y 1•M•·11flo1I u11il ,.,, llll1•;th• l11.·t.11r1•' hat 111111 m·lrn1wlld~l'tl tnfd tttllntd.to lu I~· lllL'lt 111·t 11111ilH•1l111111 Ill\• 111-l 11n1l 111·n1 (J( ~uill (Otparatlcntt Ibo.I Iii... "i:,m:uur1•;i nf Uu• i'i1!1) \"lt('oPryl'lth•/11l\nrl11f 1110 ~rttnrr ot Ntd' t~•r1~1rnli1111 In "" •I r11f1•j.(11h1Jt l't>tllll~nl\• nt\' 111 llto ·11.'1t1lwr!U1114f lho •:1i11 \'Ir•· l'r•·•i1I 111 111111 ·swrt•lnrf 11f '"lol C11r11•11ullri11t rNttOd!~<t1r, 11ml lb:1I lilt: tl>:1l 11ltt111,l lo ,1111~l l~rlhlw1h: I.\ lbu tntRJn~n or OOfJ:KltDfo ·•'itl.•1( •:d1lt~•t)111 L'Ul1111.· • h \\'11:.:1,,.~ \'1u:1111w, I l1:tl'l• l11·~1·1111l•1 •1·! my l1:11n1 nnd i-l~1 oC 1.m.,• 1111• 1by 1uul )'t•:ir 11(111-.·f11l11. I I i. ' ,\l\1\ I 1111\:-l'UI" :.,11r.\H\ l'\'111.ll \1'1111'\r1:11 t . 111:11"t'\H\0 .'I, 1~.1 1)111 IWll l't: \k :o.r,\tt: Ill-' 11~:1.\\\'., HK .\Llt,\ J, JlMttu X'11l11r)' l'111i1lf: •M>· l'1.1m1111~4i11ii J.!1i11t~! ._,~·Ii. !H, 1007 \\'llniluit<1n1 l>.!l ~·cw Uuilc Coaiitr '" ". I &>oK 292 Pag 450 . . .. ·~ ~--··. . ,,.-. . ,;-;::::::---_a~l: ~ --. :~·~/;: ··~dh~ . ·:..:.---~~~iWiil'. \,, " . . .. . . ..... • ....--r.---. --::::::::::::; . i'i·.··.. /~. ~~~·.. . . . . . . '·'· . -;·--·-~ .f. lntin N. MmufU, ·fl'~ o/.9lar,,ojltkfl!at>o/~1"% illl ~ ttrttfU tliattl.ea'-1a-nd /$1''(1•14<? t~ utntAand,u,.mnf*o/ Ctrtllio•te of Aaond>lent of tbe "l'AClrlC WESTERN 011. COl\PORA'l'JO!l!'' 04 ~oce1ved and filed in this office the twonty-fifth d•y of April, A.D. 19511, at 11 o'cloo~ A.~. . . Ju l!lfll\®lt1y W~r.rtnf, .f/,,.,,,,/r,,,,cufll"'~bmy.lta.1d and~&ralatfAir.n~t/iiJ . •••••y-•lx+h tfar rJ!. lpr II ln tli.n;'lt"l'"/~U1' ffi,rd 1»U1tlicuJand1ii11cAu11dTe<luwl. fl "Y·" •x '~''' ~ .. /\ .:.• ) 'i. f? (! JAN 19 1908 Recorded at V\' I o'olock-1..-M. • Reoaptloo No. MB!! .aa MILDOED ALSDOllF, RECORD GARFIELD COUNTY, COLORADO OEEO KNOW ALL MEN BY THESE PRESENTS: GARFIELD :i;,.,, 1<\.1<\Q~ Stal• Doo; Fae £:.<,, '-"l-1---- That this deed is made effective as of the 31st day of Oecember, 1984 by and between Getty Oil Company, a Delaware corporation,. (hereinafter referred to as "Grantor") and Getty 011 Exploration Company, a Oelaware corporation (hereinafter referred to as "Grantee"). W I T N E S S E T H: WHEREAS, Grantor is the owner and/or holder of those certain shale oil prop- erties, and lands 1n. Mesa and Garfield Counties, Colorado, described in Exhibits "A" and "B" attached hereto and by this reference made a part hereof (hereinafter collectively referred to as the "Properties"); and NOW THEREFORE, for and in consideration of one dollar and other good and valuable considerations, the receipt of which is hereby acknowledged, Grantor · does hereby quitclaim, bargain, sell and convey unto Grantee, all of Grantor's right, title and interest in and to the Properties, together with all improvements situated thereon and all water rights, permits and applications, and reservoir and ditch rights, appertaining or belonging thereto or used in connection therew1 th, and other appurtenances thereunto belonging, Grantee does hereby accept this deed subject to easements, rights of ways, exceptions and any and all reservations appearing of record affecting any of the Properties and/or rights ·granted. To have and to hold the same together with all and singular the appurtenances thereunto belonging or in anyw1 se appertaining to Grantee, and a 11 the estate, right, title, claim and demand whatsoever, of the Grantor, either in law or equity, of, in and to the Properties, together with all improvements situated thereon and all water rights, permits and applications, and reservoir and ditch rights, appertaining or belonging thereto· or used in connection therewith, and other appurtenances thereunto belonging. This deed shall extend to, be binding upon, and inure to the benefit of the successors, and assigns of Grantee, STATE OF COLORADO CITY AND COUNTY OF DENVER -<-~-~·· ; !·ug1;.S· .:_ . .· 4~aru.~ 11M£11Jlf!1Z/?l'f owz; The foregoing instrument was acknowledged before me this ~ day of ~ , 1987, by 0-f, ;=: ~!A:;;f , to be known to be the ~executed the forego1ng~ume!l as Attorney-in-Fact of Getty 011 Exploration Company. Witness my hand and official seal. ··.·, . ' .' ' I • ·, ' ~ ' ....... , . :, Lie,/.· .· ·· ........... · .• ' •• I. ~; Notary Public My Comlssion Expires Address w ( . ' T5S-R98W Section 25: Section 26: Section 35: i~~~ 728 PIG! 28 Garfield County, CO Clear Creek No. 4 Placer, being Lots three (3) and four (4); with Lot 3 aka 8.04 acres being the SE/4NE/4SW/4 and lot 4 aka 16.45 acres being the E/2SE/4SW/4; Velvet No 13 Placer Claim comprising Lots one(l) and two (2); with Lot 1 aka 20.47 acres being the N/2 NE/4SW/4 and Lot 2 aka 20.58 acres being the N/2NW/4SW/4; Clear Creek No. 3 Placer Mining Claim, described as the Tract one hundred one (101), aka the SW/4NE/4SW/4, S/2NW/4SW/4, SW/4SW/4 and W/2SE/4SW/4 •. Lucky Strike No, 15 Oil Shale Placer Mining Claim, comprising Lot one (1), with Lot 1 aka 29.30 acres being the N/2NE/4NE/4 and NE/4NW/4NE/4; Clear Creek No. 3 Placer Mining Claim, described· as that part of Tract one hundred one (101) lying in the SE/4NE/4SE/4 and E/2SE/4SE/4; Velvet No. 13 Placer Claim, comprising lot three (3), aka the 16.64 acres being the SE/4SE/4NE/4 and NE/4NE/4SE/4; Velvet No. 14 Placer Claim, comprising Lot two (2), aka 16,64 acres being the NE/4SE/4NE/4 and SE/4NE/4NE/4; Lucky Strike No. 1 Placer Mining Claim, comprising Tract 97, aka SW/4NE/4NE/4, SE/4NW/4NE/4, W/2SE/4NE/4, E/2SW/4NE/4, E/2NW/4SE/4, W/2NE/4SE/4, E/2SW/4SE/4 and W/2 SE/4SE/4; Lucky Strike No. 2 Placer Mining Claim, comprising Tract 96, aka W/2NW/4NE/4, W/2SW/4NE/4, E/2NE/4NW/4, E/2SE/4NW/4, E/2NE/4SW/4, W/2NW/4SE/4, NE/4SE/4SW/4 and NW/4SW/4SE/4; Lucky Strike No. 3 Placer Mining Claim, comprising Tract 95, aka W/2NE/4NW/4, E/2NW/4NW/4, W/2SE/4NW/4, E/2SW/4NW/4, NE/4NW/4SW/4 and NW/4NE/4SW/4. Lucky Strike No. 1 Placer Mining C)aim, comprising Tract 97, lying in the NW/4NE/4NE/4, W/2NE/4NE/4NE/4 and E/2NE/4NW/4NE/4; Clear Creek No. 3 Placer Mining Claim, described as the Tract one hundred one ( 101)' aka that part of the NE/4NE/4, being the E/2NE/4NE/4NE/4; . Tract 103 aka the E/2E/2NE/4, E/2NE/4SE/4 ~nd E/2E/2SE/4NE/4SE/4, as described in Warranty Deed recorded in Book 257 page 137 of the County Records of Garfield County, Colorado, Section 36: Clear Creek No. 3 Placer Mining Claim, described as Tract one hundred one (101) aka the N/2NW/4NW/4, NW/4NE/4NW/4 and W/2W/2NE/4NE/4NW/4; Tract 103, aka the S/2NW/4NW/4, SW/4NE/4NW/4, W/2SE/4NE/4NW/4 N/2SW/4NW/4, SW/4SW/4NW/4, W/2W/2SE/4SW/4NW/4, NW/4SE/4NW/4, W/2W/2NE/4SE/4NW/4, W/2NW/4SW/4, SE/4NW/4SW/4, W/2W/2NE/4NW/4SW/4, SW/4NE/4SW/4, SE/4NE/4SW/4 less Lot 9 in the E/2E/2E/2SE/4NE/4SW/4, also described in the Warranty Deed recorded in Book 257, page 137 of County Records of Garfield County, Colorado; Tract 104, aka the 40 acres of the E/2SE/4SW/4NW/4, E/2W/2SE/ 4SW/ 4NW/ 4, E/2W/?.NE/ 4NW/ 4SW/ 4, E/2NE/ 4NW/ 4SW/ 4, SW/4SE/4NW/4, NW/4NE/4SW/4, W/?.W/2NE/4NE/4SW/4, W/2W/2SE/4SE/4NW/4, also described 1n Warranty Deed recorded in Book 257, page 137 of County Records of Garfield County, Colorado; Tract 108, aka the W/2SE/4SW/4, E/2E/2NE/4SW/4SW/4, E/2E/2SE/4SW/4SW/4, and the E/2SE/4SW/4, less Lot 4, and any part 1n the S/2S/2SW/4SE/4, also described in Warranty Deed recorded in Book 257, page 137 of the County Records of Garfield County, Colorado; -9- I •· ' I T6S-R98W Section 3: Section 4: Section 9: Section 10: B~'.! 728 ?!':! 30 Garfield County, CO Hunter placer claim, comprising that part of Tract 39B lying in the W/2SW/ 4, a 1 so described in Deed recorded Book 240, page 193 of County Records of Garfield County, Colorado; Wallace placer claim, comprising that part of Tract 488 lying in the S/2S/2SW/4, also described in Deed recorded in Book 240, page 193 of County Records of Garfield County, Colorado; Clear Creek pla·cer claim, comprising Lot 5, being the 47 .05 acres in Tract 107, ·in the W/2 of the section. Clear Creek placer claim, comprising Lot 5, aka 31.90 acres in Tract 107, in the E/2; Clear Creek placer No. l claim, comprising the Lot 6; with Lot 6 being 39. 52 acres in the E/2, aka part of Tract 106 lying in the section; That part of Tract 108 lying in the section as described in Warranty Deed recorded in Book 257 page 137 of County Records of Garfield County, Colorado; That part of Tract 40 described under the original survey as the SE/4SW/4 in Warranty Deed recorded in Book 275 page 137 of County Records of Garfield County, Colorado, and as may include any part of the S/2NE/4SW/4, NW/4SE/4 and S/2SE/4; Hunter placer claim, comprising that part of Tract 396 aka the SE/4SE/4, and including any part covering ·the S/2NE/4SE/4, SE/4NW/4SE/4 and E/2SW/4SE/4, Also described in Warranty Deed recorded Book 240, page 193 of County Records of Garfield County, Colorado. That part of Tract 40 lying in section and described in War1·anty Deed Recorded in Book 257, page 137 of County Records of Garfield County, Colorado, and as it may include any of the NE/4NW/4, and NE/4; Hunter placer claim, comprising that part of Tract 398, and described in Deed 1·ecorded Book 240, page 193 of County Records of Garfield County, Colorado, and as 1t may include any of the E/2NE/4; W/2NE/4; E/2SE/4 and NW/4SE/4; aka part of Tracts 40 and 44, in the section. Hunter placer claim, comprising that part of Tract 396, described in Deed recorded Book 240, page 193 of County Records of Garfield County, Colorado, and lying in the W/2W/2NW/4; Wallace placer claim, comprising that part of Tract 488, described in Deed recorded in Book 240, page 193 of County Records of Garfield County, Colorado, and lying in NW/4 and W/2W/2NE/4; Buck Canyon No. 5 placer claim comprising Tract 49, described in Deed Recorded in Book 240, page 193 of County Records of Garifeld County, Colorado as it may lie in the N/2NE/4; Buck Canyon No. 6 placer claim comprising Tract 50, described in Deed Recorded in Book 24D, page 193 of County Records of Gari fel d County, Colorado and lying in the NE/4; Westfield No. 1 oil shale placer mining claim, comprising Lot 4, with Lot 4 aka 40.00 acres lying in the S/2SE/4NW/4, E/2W/2Nll/4SE/4, SW/4SW/4NE/4, and NE/4SW/4; Westfield No. 2 oil shale placer mining claim, comprising Lot l and Lot 3, with· Lot I aka 32.86 acres lying in the NW/4SW/4 and S/2SW/4NW/4, and Lot 3 aka 7 .14 acres lying in the E/2NW/4SW/4, W/2NE/4SW/4, E/2SW/4NW/4 and W/2SE/4NW/4, -11- I 'Defuvare PAGE l 'Ifte Jirst State I 1 .IWUUE:z' SMITH WINDS0!;?1 $BCRE7'A.Rf O'li' S!l'A'.l'S 9F ':l'Hli: STAZ'E OF P~WA.Re, DO l/EllEBY C.S.R!l'.!.FY 'l'IJE A!l'!l'AC1WD IS A 1'.RUE 11.NJ? C'OrulEC!i' . . COPY OF THB CBRTI.li'ICA!l'E OP .MERGER, WHICH MERGES: "GETTY OIL .EXPLOIIATION COMPANY", A DELAWARE CORPORATION, WIT.HAW :XNTO "CHEVRON U.S.A. INC,." VND.li;R T.HE N1IME O'Ji' "CBEVRON U.S.A. INC.", A CORPORATION ORGANiZED AND BX;tSTING WwER THE LAWS OF THE STATE OF PENNSYLVANIA, AS .REcE:tVE.0 AJm FILE/) IN 'J!lIXS OFFICE fHE Tll1Il.T11!:TH DAY OF APllXL, )LD. 2002, AT 9: 05 O'CLOCK .A. M. AND t DO l!ERSBY FURTHER CEI'.TIF:t: THAT THE EFFECTIVE DATE OF 'l'HE AirOiiB$AID CEP.Tili'ICATE OF .&ERGER IS THE Ji'IM!r DAY OF VAY, 11.D • .20021 AT 2 O'CLOCK IJ,M, 1111111 Hiii Hlllll llllJll!l.lllll llllll Ill lllll llll llll 669006 02/22/2006 ~2; !)]f' lll664 P367 M ALSDORr 1 of 3 R 16.00 D 0.00 GARFIELD COUNTY CO 0784181 8100M 050107962 Haniet Smi!h Windsor, S~creltlry of Stat• AU'l'HENTICATION: 3674757 DATE: 02-09-05 J 111111111111.111111111111111 Jllll. Ullll Ill lllll llll llll 66900G 0Z/~.U2005 .~2:07P Sl664 P368 11 ALSDORF 2 of J R ~6.00 D 0.00 GARFIELD COUNTY CO lt is hereby certified 1ha1: CERTIFlCATEOFMEROER OF GETIY OIL EXPLORATION COMPANY WITH AND lNTO CHEVRON U.S.A. INC. DIVI$IQN. 01!' CORFORATIONS PILED 09:.0!i .J.M. 04/30/2002 020271446 ~ 07114181 I. The aonstituent business corppralions particiirating in the merger herein .. C¢ctified nre: (i) Getty OU Exploration Company, which .is incorporated under the Jaw~ of the State of Delaware; and (ii) Chevron U.S.A. Inc., which is incorporated under the laws of the State of Pennsylvania. 2. An Agreement of Merger has been approved, adopted, certified, executed and acknowledge<! by each of tho aforesaid constituent c<1rporations in =ord.i\n<;e·with the. provtsions ohubsec1io1r(c) pf Section 252 of the General Corporntion Law of thf! State of Defaware1 to wft, by ~ityOilll~ploiation Compmy in the same manner as is provided hi Settion 25L of the Generol CillJ)o!D)fon l:l)w.of thli Sta~of Delaware and by Chevron U,S,A. Inc. In a~ordance with thC? l.aws otthe St~ ofits inc~tl\tlon. 3. The 11am~ of the surviving corporation Jn the merger herein oertitled is Chevron U.S.A. lilc., whicl\ wll! cl:lotinue its existence as ~.aid surviving eorpoi:atfon under tho :nnme chevroti U.S;A, Inc. upbn 1he ~ffective date of sfild merger pursuant to tho provision~ of the laws of the Stare oflts in00rpoiat!0n. · . 4. Tho certificate of inco.tporaUon of Chevron U.S.A. Jnc;, as now in force and eif~t. shall conti11uc to ~. !111~ certificate of lncotporation of said slln'Mng corporaUon until amendeil arnl changed illlJSUatit to the provisions of thli laws of the Stale ofits lntoipilratkm. 5. The executed As.reement of Merger between the aforesaid ~o~tituent corpo111.ti.o~s Is O!l file aJ an .office of the aforeS!lid survivln,I! corporotion nt: 57.SMatket Street, San Francisco, CA 94105. 6. A copy of the aforesaid Agreement ofMerger wil.I be furnished by the aforesaid surviving corporation, on request; and without ~ost, 'to any st0ckholder <if eacb of the aforesoid constituent corpor;1ti on s. . 7. The afore~aid ii.u·rv!ving coipOratlim diie.5 ·here!iy agree that it may ne ~erved with process in the State of tlel~WJlre in ariy proceeding for enfott:ement of any obligation of Getty Oil Exploration Company, as well as for enfortem~nt(lf MY .ollli&iltJon of said surviving corporation arising from the merge_r herein ~ertl:t1ed, incl.udfng_any suit or other proceeding t9 enforce the right, if uny. of any ~.tqcl<holder of Geuy Oil ExpJor.ition Compll!ly as 1fotennlned In app;.ii$lll proceeding.I pursuant to the pr.ovlsions of Sl!Clinn 262 of the (]eneral Corporation Law of the State orDelawaie: ~oes hereby irrevocably app<ilnt th¢ Sei:retiuy of Sta!e of the State of Delaware as. its agent to accept service ofpr0¢eSsin any such suiforotherproceedlng$; arid does heroby,6pecifythe followlng !s the address to which ll copy of SQch process slja!I bcj mailed by the Secretiuy of Stllte of the Siat~ of Delamre: Corpot11te Secrel!ll'Y Department, Chevron U.S.A. Inc., 575 Markee, San FranClsco, CA 94105. 8. Tho mefgi:r is to beco~e effeetive on May 1, 2002, 2:00 P.M., Eastern Standard Time. Dated: May l, 2002 CHBVRONU.S.A.INC; By: ·k!Frbnk;G Soler Frank G. S.!ller Tts; A~islanl Sccrelqry I '" l '' t' JRN l > '""' Recorded at v"l·i it '".l'cl9ck~r"1.-=.::::;_;:..;...;"""-- R•coptlon No. 38!>*3$ MILDRED AlSOOllF, RECORD . GARFIELD COUNTY, CO~ORAOO ~'Cl.N, \ \•\'r\1- Slafo Doo, FO. DEED h:'.! 728 P~O;E 19 KllOW Al.L MEN BY THESE \>RESENTS: That. this deed 1s made effective •.• of the 31st day of Dacember, l9M by and betweeff Get~ Oll Company, a Oel•w•re corporatlon, .. (hereinarter referred to u 'Granter-) ·and Getty Oil Exploratloh Conip•ny, a Delaware corporation (hereinafter referred to as "Grantee"). W.I T II ES SET 11:· WHE.REA>. iirantor lS the owner and/or holder of those certain shale oil prop- erties, and lands in .Mesa a.M ·sarfleld Cou.nties, Colotado, described in Exhibits 'A' and •a• (ittach•d he.rete and by this referimce made a part hereof (here1nafter collectlvely referred to as the 'Properties'); and NOW THERE~ORE, ·for and ln c~nsideration of one dollar and other goQd and valuable consideratlbns, the rec·e1pt of wh1ch ·1$ hereby acknowledged, Grantor does hereby ~uitclaim, hrgaln, .sell and convey unto Grantee, all of Grantor's rlg~t·, title and· interest in and to the Properties, together w·ith all 1mprovemenh situated thereon e11d a·ll water rights, permits· an.d appllcatiOns,. and re~seryoir and ditch rights, appe.rtainln_g or belonging ther~to ·or us!id in ·connection therewith, and other appurtena.nces thereunto belong1ng. ~rant.ee does hereby ·accept thls dee.d subject to easements, rights of ways, except1ons and ·a.i)y and all reservations appearing of record affecting a·ny Of the. Properties •and/or,.rightl gran~ed, To have and to'hold the satie together with all ancl singular the appurtenances t,hereunto belo,nglng or. Jn an,.wlse appertaining to Grantee, and all the estate, right, tttle, cla)m and ·de~and 1<hatsoever, of ·the Grantor, either in law or equity, of, in and· t• the Properties, together with all improvement~ situated th.ereon and all water rights, permits and applications, and reservoir •nd .'d1.tch. tights, apperta1ning or belonging thereto or used in connect1on therewith, and :other appurtenances thereunto belonging. This deed shall ••tend to, be ~lnding upon, and inure to the benefit of the successors, and assigns of Grantee. , STATE OF COLORAQO Cl~Y AND COUHTY OF DENVER · . The foregginq_1nstru t_was cknowledged before me this <f/-t,. day of '-:~~!!!:;'.':!;/.,,,_• 1.~~ •. bY . l:. · , to be k~o be tbe o.rson wh. executed the f regolng nstrument as lee President of Qetty Oil { cuni~·r;'.:i,.·~itness my han.d ;md<>fflcfal seal: 4J~·· . '· .. ·.· Notary l'ubllc: _.:.........___ fU. /~ -:·-<·-·:" ; tty Comla1on Expires: ""'1iw.t.,.,..*<C!!<l$~--~- ... ·\:t31;. ~· ,· · . . Address: ilA]Q 1iltlHV@'!. 'i' . ..-· .Vt_AJ0'1fr-7!1 . /(ow£ The foregolllg 1.nstrllment was acknowledged before me th1s ~ day of 1~ , 1~87, by \)/.. F. ~""'C: , to be k.no~n to be the ~executed the fof!!golilglliSfr1Jmelit as Attorri•Y·in-fact of Getty 011 Explor~~j1m Company, W1tnesnny hand and offl.cial sea.1 • .., : u'/. :.~ ....... . . . . ' . ' ' . .. ,,, ... . flotary Pub 11 c My Comiss!on E>plres Address APPENDIXB AGENT AGREEMENT POWER OF ATTORNEY CHEVRON U.S.A. INC. KNOW ALL MEN BY THESE PRESENTS THAT CHEVRON U.S.A. INC., a Pennsylvania corporation, ("CHEVRON"), acting herein through SCOTT DA VIS, Vice President of its Chevron North America Exploration and Production Co1npany division, herew1to duly authorized by Resolution of the Board of Directors, hereby makes, constitutes, and appoints MICHAEL DeBERRY, to be its true and lawful Attorney-in-Fact with full power of substitution and delegation and with authority, for and on its behalf. \Vithout the necessity of affixing the corporate seal, to execute, ackno\vledge, deliver, file, record, accept, assign, amend, extend, terminate, withdra\v, release, settle, compromise, surrender, ratify, and renew all instruments, papers and documents requiring execution in the name of CHEVRON, except as herein below stated, and no authority is conferred by this Power of Attorney for execution of the following: 1. Leases or deeds to others covering oil, gas or other hydrocarbon or non-hydrocarbon minerals underlying fee lands of CHEVRON \Vhere either book value or sale price exceeds Twenty-Five Million Dollars ($25,000,000.00) or the acreage exceeds Six Thousand Four Hundred (6,400) acres; 2. Deeds or conveyances to others covering fee lands of CHEVRON, other than rights of way and similar easements, where either book value or sale price exceeds Twenty-Five Million Dollars ($25,000,000.00); 3. Documents, instrun1ents or promissory notes in support of any borro,vings; provided, however, that promissory notes and other d0Gun1ents given as consideration for the acquisition of real or personal property sh·~ll not be deern:::d to constitute a borro\ving; 4. Documents or agreements establishing bauk <.iccounls in the name of CHEVRON or withdrawing of funds or clo<ing of any bank accounts of CHEVRON. This Power of Atton1ey shall remain in full force and effect from and after first day of January, 2008 through the 31st day of December, 2008, and its exercise shall be valid in all the sf.ates, tenitories and possessions of the United States. JN WITNESS WHEREOF, CHEVRON has caused its name to be subscribed hereto by Scott Davis, Vice President of its Chevron North America Exploration and Production Company division, for that purpose duly authorizedJ this 3rd day of December, 2007. STATE OF TEXAS COUNTY OF HARRlS CHEVRON U.S.A. INC. By: ,dcdf=w~ SCOTTfJA VIS, Vice President Chevron North America Exploration and Production Company, a division of Chevron lJ.S.A. Inc. This instmment was acknowledged before me on the 3rd day of December, 2007, by Scott Davis, Vice President of its Chevron North America Exploration and Production Company, a division of CHEVRON U.S.A. INC., a Pennsylvania corporation, on behalf of said CHEVRON U.S.A. INC. ft.t&:v ~ Notary Public, State of Texas Chevron === August 21, 2008 Mr. Fred Jarmin, Director Garfield County Building & Planning Depmtment I 08 81 " Street, Suite 401 Glenwood Springs, CO 8160 I Michael Deeerry Manager P/ceance Operations Re: Authorization to Represent Chevron in Special Use Permitting - Tim Dobransky, Cordilleran Compliance Service, Inc. Dear Mr. Jarmin: MldContlnent/ Alaska SBU Chevron North America Exploration and Production Company a division of Chevron U.S.A. Inc. 760 Horizon Drive, Suite 401 Grand Junction, CO 81506 Tel 970-257-6005 MKDeberry@chevron.com Tim Dobransky of Cordillernn Compliance Service, Inc. is as an independent contrnctor whom has been engaged by and authorized to represent Chevron U.S.A. Inc. ("Chevron") for the limited purpose of preparing and submitting Special Use Permit Applications in Garfield County, Colorado on behalf of Chevron. Mt'. Dobransky is authorized to participate in discussions before appointed and elected boards regarding Chevron's Special Use Permit Applications, but his authority is limited to the terms of the Permit Applications or other written documents filed on Chevron's behalf. The authority granted Mr. Dobransky in this letter extends for a period of the eal'lie1· of one year from the date of this letter or the date such authorization is revoked by Chevron in writing. Questions about this authorization should be directed to the Chevron Piceance Operations Manager, Michael DeBerry, (970)257-6005. Thank you, .J'? 11 .:t.<-tJ ......,.._. Michael DeDeny Chevron Piceance Operations Manager cc: Julie Justus Timothy Barrett Sean Norris APPENDIXC ASSESSOR'S MAPS -------------------·-- .. .r . ' ,,. • I i J_ .. \ ~: . --~-----------.- ··- ' . / ~ ' -U @ !r i1! 10 . .. -!it ii !11 t • ig -•'i 111 ~~ 11~ () / ' "' " ' ' " ' ' ,,., r I .l I / -i- ' _, l --;' i . ~--J ~~ I ~ I ... -,.:+_ ' l . ·' i: I 'li .. J I , ; I , 11 -l -I ... I ' ,I ..... ' \ .,,..,,,_ , ,. ....,. 's ,-. ~ ,... Che\lf'onUSAlnc.. p~ .. No. 21'7.ott .ocM>OZ , , :; i~ ~= ~;; ., Ii~ :. -- ..... ,.._..,,... l;;J ,,Jtt:'t1t1'..o.u.oo.et-: [!J CtMv..-USA a-. ~'-............... ,.._,.._,,,,_,,,_ 11&7~S1 / / ,..., '--L"""*""i ......... ita......,.,. @/ ..• /-'/ ,, e 1 • I I . __ , .. " I ~·-... I , } .J \ - _, ..... jl ~-:r i!! Ji CokwMo NM Raf!CA , Pare .. No. Puut NG, 2U~.eo.oot 1 2'67~1.00-002 1 I ~ I .,..,. ... USA,, f Patul!'fO. ' 21'Mfi f.00.007 JI 1 _i~ I ii; i h j ' Jl :. f , I ctw¥ron USA. IM.. ..,. __ Nehf'C411U...i. "'·--~ P1ru 1No.2 117·212-00-00I ""~ ...... / I ; I I / 1 swmfroni;.,ou ,.o.. I ·~ "?-2111.,.;.oo.on ,. i'1 \ I 1.1 l . ~"I ~.,,.';',._ ~ ii 1" .:;· _y_ . - { CM'nOti-USAIM. p~-No. 2117-1_!1 ~22 I • J SMllFl'Ol'lfwON&GM \I -,. ... ~t? ... 2.00.023 , / ''" ,.H g:; IR.M .:JntlJM. • ... JHM......,.I ~ ,....; -• -,I' ! I , .,, , l / -· : / ,,, / / !! /,//~I , r-. / ,- ,/ , 1"' , r _[_ I ,) I 1- j ~ s ;' ./H ..... I • '-:<" ~ -I J ;:, ~= IN ~' J <ii) ,I' .\ : .u __ ,_,,_,l ~ h , , " . , ~ I , r e~ ~-c...._........,._____ . I J ~ ~ .hflaM,L~....._CHA'"'..._...._...._...,._.,.c.­ j \ i-a.c.•.--L..0.....(Uft) ................ "--'~ .... ' 1! ... ~ , / ,, / "••" / £..:_ , I -,/' / -,/·---- -I . , , " , , Garfield Count y , Col ora:lo Assessor's Office ......... ....,'°7.-....,..._co 1-. ----~- Legend Cml T•"'-" ""' •CWiicf ......., Ao/ ..... .._.. .......... IV_,. IV <.-,_ ....... ..._~~ --""""'"- ·c-------"-··-...... u_ .. ___ .. __ ,,_ -~-.. ·------ ~----------"--·-··-... --tt_ ...... a,. ...... -.... ------·-,...--... _,.,, -.. --.. -···---_ ... _., __ _ ~~~i:%!~~~.fJ ______ .._ ... _ .. ____ _ §:~§.=§="~=--=~ 2167 TOMws/1/p 6 Sou th Ra1~ 98 Wm 0 • ~UN&!,.-'J,:>27 ·- , .............. uuot 1 m~:"'1 ...-,.,-~- -I' Map ID Township, Parcel Number Range 1913 4S,97W 1913-284-00..004 1913 4S,97W 1913-292-00..952 1913 4$, 97W 1913-323-00-006 1913 4S,97W 1913-351-00-007 Map ID Township, Parcel Number Range 1911 4S,98W 1911-,272-00..005 1911 4S, 98W 1911-301-00-955 1911 4S, 98W 1911-341-00..952 Map ID Township, Parcel Number Range 1909 4S, 991/V 1909-223-00..002 1909 4S, 99W 1909-243-00-003 1909 4S, 99W 1909-243-00..003 1909 4S, 991/V 1909-243-00..003 1909 4S, 991/V 1909-232-00..005 1909 4$, 991/V 1909-273-00-007 1909 4S, 991/V 1909-322-00-!151 Map ID Township, Parcel Number ·Range 2135 5S, 96W 2135-064-00-952 CHEVRON PICEANCE BASIN NATURAL GAS DEVELOPMENT PROGRAM ADJACENT PROPERTY AND SEVERED MINERAL OWNERS Township 4 South, Range 97 West Name Address EV Ranch LLLP 22593 RBC Road 5, Rifle, CO 81650 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Exxon Mobil Corp. Attn: Exxon Co. U.SA., PO Box 53, Houston, TX nD01..Q053 Exxon Mobil Corp. (83.8%), Levy Brothers LLC (10.8%), JoAnna U. Homas Trust (1.05%), Connie Hinman Trust (0.98%), Virginia Hinman Trust (0.098%), Stuart A Umpley Trust (1.05%), Cara V. Lockett & Comerica Bank-Texas PO Box 53, Houston, TX n001-0053 Co. Trustees of Susan G. Umpleby Peasner Royalty Trust (0.7%), Stanley Lockett & Comerica Bank-Texas Co.- Trustees of the Cara Virginia Umpleby Lockett Royalty Trust Township 4 South, Range 98 West Name Address Harris & Doyle Livestock LLC (37.95%), Amerada Hess 990 Sapphire Drive, Castle Rock, CO 80108 Corp (37.05%), Oil Shale Corp. (25%) Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 (not listed in Assessor's record) Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 (not listed in Assessor's record) Township 4 South, Range 99 West Name Address LOV Land Co. 439 County Road 26, Rifle, CO 81650..8823 Mobil Oil (50%) Attn: Prop Tax Div, PO Box 53, Hotiston, TX 77001 Puckett Land Co. (40%) 5460 Quebec St. Suite 250, Greenwood Village, CO 80111-1917 Equity Oil (10%) PO Box53, Houston, TX noo1 (10%) State of Colorado Division of Wildlife, 6060 Broadway, Denver, CO 80216-1029 Paul M. Marriott, Kathryn Dougan 215 S State St Ste 1170, Salt Lake City, UT 84111-2334 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Township 5 South, Range 96 West Name Address Bureau of Land Management 50629Highway 6 & 24, Glenwood Springs, CO 81601 -~ 2135 5S, 96W. 2135-073-00-003 2135 SS, SSW 213S-184-00-SS6 2135 SS, SSW 213S-273-00-01 S 213S SS, 95W 2135-321-00-00S Map ID Township, Parcel Number Range 2137 SS, 97W 1913-284-00-004 2137 SS, 97W 2137-012-00-001 2137 SS, 97W 2137-014-00-006 2137 5S, 97W 2137-071-00-SS1 2137 5S,S7W 2137-014-00-011 2137 5S,97W 2137-131-00-002 Map JD Township, Parcel Number Range 2139 SS, 98W 2139-062-00-9S1 2139 SS, 98W 2139-101-00-011 2139 5S, 98W 2139-111-00-9S2 2139 SS, 98W 2139-183-00-006 2139 SS, 98W 2139-214-00-953 2139 SS, 98W 2139-342-00-009 Not listed in 2139 SS, 98W Assessor's Records Map JD Township, Parcel Number Range 2141 SS, 99W 2139-342-00-009 2141 SS, 99W 2141-054-00-016 2141 SS, 99W 2141-092-00-017 2141 SS, 99W 2141-231-00-006 CHEVRON PICEANCE BASIN NATURA1-GAS DEVELOPMENT PROGRAM ADJACENT PROPERTY AND SEVERED MINERAL OWNERS Reuben Gerald & Stephanie Oldland 14667 County Road 5, Rifte, CO 81650-8812, IMPS only Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Encana Oil & Gas (USA) Inc. c/o Logan & Firrnine, 3615 S. Huron Street, Suite 200, Englewood, CO 80110 Berry Petroleum Co. 950 17th Street Ste 2400, Denver, CO 80202 Township 5 South, Range 97 West Name Address 81 Ranch LLLP 22S93 RSC Road S, Rifle, CO 816SO Eva & Timothy Uphoff (50%), Eva Christine Oldland 17037 County Road S, Rifle, CO 816SO (SO%) Reuben Gerald & Stephanie Oldland 14667 County Road S, Rifle, CO 816S0-8812, IMPS only Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Eva & Timothy Uphoff 17037 Rio Blanco County Road 5, Rifle, CO 81650 Eva & Trrnothy Uphoff 17037 Rio Blanco County Road 5, Rifle, CO 81650 Township 5 South, Range 98 West Name Address Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 EV Ranch LLLP 22593 RSC Road 5, RIT!e, CO 81650 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 EV Ranch LLLP 22593 RBC Road 5, Rifle, CO 81650 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Colorado Nature Ranch LP 4901 Wineland Road Ste 650, Orlando, FL 32811 Bureau of Land Management -Severed Minerals in S0629 Highway 6 & 24, Glenwood Springs, CO 81601 Section 36 Township 5 South, Range 99 West Name Address Colorado Nature Ranch LP 4901 Wineland Road Ste 650, Orlando, FL 32811 Franklin Dee & Vicky L. Norell PO Box 1536, Meeker, CO 81641 David G. Manter (12.5%), Carolyn L Ansari (12.5%) 353 South Oneida Way, Denver, CO 80224-1331 Kerogen Oil Company Attn: C. R. Davis, PO Box 51, Winnetka, 1160093-0051 2 of 5 Map ID Township, Parcel Number Range 21S9 SS, 97W 21S9-022-00-019 2169 SS, 97W 2169-041-0G-951 2169 6S, 97W 2169-044-0G-003 2169 6S, 97W 2169-214-0G-026 21S9 6S, 97W 21S7-382-00-023 Map ID Township, Parcel Number Range 21S7 SS, 91WV 2139-342-00-009 2167 SS, 98W 2167-014-0G-020 2167 SS, 98\N 21 67-033-00-951 2167 6S, 98W 2167--044-00-952 2167 6S, 98W 2167-094-0G-953 2167 6S, 98\N 2167-154-00-955 2167 6S, 98W 2167-=-oo-956 2167 6S, 98W 2167-272-0G-958 2167 6S, 98\N 2167-321-00-960 2167 6S, 98W 2167-334-00-961 2167 6S, 98W 2167-341-00-963 2167 6S, 98W 2167-342-00-962 2167 6S, 98W 2167-343-00-964 2167 6S, 98W 2167-362-0G-023 2167 6S, 98W 2413-042-0G-003 2413 7S, 98W 8029--054-07-000 2413 7S, 98W 8029-057-07-000 2413 7S, 98W 8029-1 00-07-000 Not listed in 2167 6S, 98W Assessor's Records· CHEVRON PICEANCE BASIN NATURAL GAS DEVELOPMENT PROGRAM ADJACENT PROPERTY AND SEVERED MINERAL OWNERS Township 6 South, Range -97 West Name Address Savage Limited Partnership I Attn: John Savage, 5953 County Road 320, Rifle, Co 81650 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 OXY USA WTP LP 5 Greenway Plaza Ste 110, Houston, TX n046-0506 OXYUSAlnc. 5 Greenway Plaza Ste 110, Houston, TX n046-0506 Shell Frontier Oil & Gas Inc. c/o Shell OiJ Company, PO Box 4854, Houston, TX 77010 Township 6 South, Range 98 West Name Address Colorado Nature Ranch LP 4901 Wineland Road Ste 650, Orlando, FL 32811 Lucas L. Renninger 269 Main Street Meeker, CO 81641 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6·& 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highways & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Sprirlgs, CO 81601 Bureau of Lan.d Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Splings, CO 81601 Shell Frontier OU & Gas c/o Shell Oil Company, Po Box4854, Houston, Tx77010 Erwin P. Knirlberger PO Box42, De Beque, CO 81630-0042 Opal C. Latham (21.875%), Severed Minerals PO Box 127, De Beque, CO 8163G-0127 Pauline E. (Duffy} Latham (21.87%}. Severed Minerals 3249 D314 Road, Clifton, CO 81520 Leslie C. & Juanita L. Davis (6.25%)._ Severed Minerals 1714 Mineota Dr, Silt, CO 81652 Bureau of Land Management-Severed Minerals in 50629 HighW.y 6 & 24, Glenwood Springs, CO 81601 Section 15 Map JD Township, Parcel Number Range 2411 7S, 97W 2411-082--0G-011 2411 7S, 97W 2411-082--00-954 2411 7S, 97W 2411-342-00-956 2411 7S, 97W 8029--041--07-000 Map ID Township, Parcel Number Range 2413 7S, 98W 2413-092--0G-952 2413 7S, 98W 2413-094--00-004 2413 7S, 98W 2413-112--0G-951 2413 7S, 98W 2413-222--0G-953 2413 7S, 98W 8029-001-07--000 2413 7S, 98W 8029-002-07--000 2413 7S, 98W 8029-003-07-000 2413 7S, 98W 8029-004-07-000 2413 7S, 96W 8029--005--07-000 2413 7S, 98W 8029-036-07-000 8029-037-07-000 2413 7S, 98W 8029-045-07-000 2413 7S, 98W 8029-046-07-000 2413 7S, 98W 8029-047-07-000 2413 7S, 98W 8029--048-07--000 2413 7S, 98W 8029--054--07-000 2413 7S, 98W 8029--057--07 --000 2413 7S, 98W 8029-059--07--000 2413 7S, 98W 8029-086--07--000 8029-088-07--000 2413 7S, 98W 8029-100-07-000 2413 7S, 98W 8029-154--07-000 CHEVRON PICEANCE BASIN NATURAL GAS DEVELOPMENT PROGRAM ADJACENT PROPERTY AND SEVERED MINERAL OWNERS Township 7 South, Range 97 West Name Address Savage Limited Partnership I ·-Attn: John Savage, 5953 County Road 320, Rifle, Co 81650 Bureau of Land Management . 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management '"'" 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Frank R, Payne, & Wanda M. Heck & Theodore ·o & Velma 6141 East Campo Bello Drive, Scottsdale, AZ 85254 J. Maydew (25%) Severed Minerals Township 7 South, Range 98 West Name Address Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Albertson Ranches Co. Attn: Dale Albertson, PO Box 420, De Beque, CO 81630 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Jack.Armstrong (4.17%), Severed Minerals 3474 Hawthorne DrW, Carmel, IN 46033-9287 Harvey Armstrong (8.33%), Severed Minerals 413 Ingersol Ln, Silt, CO 81652-9571 James Louis Armstrong (estate of) {8.33%), Severed c/o Mary Armstrong Brown, 472 County Road 3000, Aztec, NM 87410 Minerals Otto W. Armstrong (8.33%), Severed Minerals 3195 F Rd Trailer 20, Grand Junction, CO 81504-4037 Otto 0. Armstrong (50%), Severed Minerals 3195 F Rd Trailer 20, Grand Junction, CO 81504-4037 Norman W. Flasche (50o/o), Severed Minerals 462 Tusher St, Moab, UT 84532-2820 Norman W. Flasche (50%), Severed Minerals O.R. & Marvie V. Hudson, Severed Minerals 1316 Avenue F, Gothenburg, NE 69138-1736 Mark H. & Maureen A. Irwin Trustees of the Irwin Family 955 Flagstone Dr, Santa Macia, CA 93455 Trust (25%), Severed Minerals George G. Vaught, Jr. (50% oil &gas), Severed Minerals P 0 Box 13557, Denver, CO 80201 Judy Armstrong Johnson (4.17%1), Severed Minerals 9307W117th St, Overland Park, KS 66210-2802 Opal C. Latham (21.875%), Severed Minerals PO Box 127, De Beque, CO 81630-0127. Pauline E. (Duffy) Latham (21.87%), Severed Minerals 3249 03/4 Road, Clifton, CO 81520 . Ted E. Lough (25%), Severed Minerals 315 4th St, Glenwood Springs, CO 81601-3036 . E.C. Roley (31.25% oil & gas) , Severed Minerals Attn: Stephen E. Roley, P 0 Box 71, Aivada, CO 80001 E.C. Roley (43.75% oil & gas) , Severed Minerals Leslie C. & Juanita L Davis (6.25%), Severed M~nerals 1714 Mineota Dr, Silt, CO 81652 Howard, Floyd, Ronald Galyean; Laura O'Brien, Betty PO Box 667, Lukeville, AZ 85341-0667 4of5 2413 7S. 9aW aOW-155-07-000 2413 7S, 98W a029-156-07-000 2413 7S, 9aW a029-213-07-000 a029-226-07-000 2413 7S, 98W a029-214-07-000 a029-224-07-000 2413 7$, 98W a029-215-07-000 8029-225-Q7-000 2413 7S, 98W 8029-21S-07-000 a029-222-07-000 2413 7S, 98W 8029-217-07-000 8029-223-07-000 2413 7S,98W 8029-213-07-000 a029-227-07-000 2413 7S, 9aW a029-219-07-000 a029-228-07-000 2413 7S, 9aW a029-220-07-000 ao29-229-07-000 2413 7S, 98W ao29-221-07-000. 8029-230-07-000 Map ID Township, Parcel Number Range 2445 as. 97W 2445-072-00-952 2445 as. 97W 2445-1 01-00-951 2445 as. 97W 2445-1 a2-00-953 Map JD Township, Parcel Number Range 2443 as. 9aw 2443-033-00-951 2443 as, 98W 2443-123-00-004 CHEVRON PICEANCE BASIN NATURAL GAS DEVELOPMENT PROGRAM ADJACENT PROPERTY AND SEVERED MINERAL OWNERS Rickstrew (20.83%) severed minerals; each owns 4.13% of surface 2413-362-00-017 (Chevron) Greta Galyean (25%), Severed Minerals Jay Rickstrew. 1423 E Spruce Ct, Rifle, CO a1650 Millard E. Graham (4.17%), Severed Minerals 211 Morrison Avenue, Rangely, CO 81648-2802 Kenneth Satterfield (2.38%), Severed Minerals 1253 Whitlock Ridge Dr SW, Marietta, GA 30064-5415 Kenneth Satterfield (1.19%), Severed Minerals Dean Sulzer (7.14%). Severed Minerals PO Box 66, Hillsdale, WY 82060-0066 Dean Sulzer (3.58%), Severed Minerals Darrel Satterfield (7.14%), Severed Minerals 651 S Road, Mack, CO 81525 Darrel Satterfield (3.58%), Severed Minerals Jean Hart (7.14%), Severed Minerals PO Box 1946, Rolla, MO 65402 Jean Hart (3.58%). Severed Minerals Neola Gates (7.14%), Severed Minerals 1933 N East Street No 14, Guymon, OK 73942 Neola Gates (3.58%), Severed Minerals Rhodora Satterfield (7.14%), Severed Minerals 2117 Broadway, Grand Junction, CO 81503 Rhodora Satterfield (3.58%), Severed Minerals Joyce Dyer (7.14%), Severed Minerals 431 30 1/2 Road, Grand Junction, CO 81504 Joyce Dyer (3.58%), Severed Minerals Vickie Burke (2.38o/o), Severed Minerals PO Box 1319, Gypsum, CO a1637 Vickie Burke (1.19%), Sever~d Minerals Brenda Esparsen (2.38%), Severed Minerals PO Box268, Minturn, CO 81645 Brenda Esparsen (1-19%), Severed Minerals Township 8 South, Range 97 West Name Address Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 Township 8 South, Range 98 West Name Address Bureau of Land Management 50629 Highway 6 & 24, Glenwood Springs, CO 81601 David Furr PO Box 186, Debeque, CO a1630 APPENDIXE AGREEMENT FOR PAYMENT FORM GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT AGREEMENT FOR PAYMENT FORM (Shall be submitted with application) GARFIELD COUNTY (hereinafter COUNTY) and _,,C"'h"'ev'-'-ro~n'""'U"".""S"-.A'". '""'ln..,,c"". ------------- (hereinafter APPLICANT) agree as follows: I. APPLICANT has submitted to COUNTY an application for. Addition of compressor unit & ancillary eq11ipment to the existing 36-1 B compressor station (hereinafter, THE PROJECT). 2. APPLICANT understands and agrees that Garfield County Resolution No. 98-09, as amended, establishes a fee schedule for each type of subdivision or land use review applications, and the guidelines for the administration of the fee structure. 3. APPLICANT and COUNTY agree that because of the size, nature or scope of the proposed project, it is not possible at this time to ascertain the full extent of the costs involved in processing the application. APPLICANT agrees to make payment of the Base Fee, established for the PROJECT, and to thereafter permit additional costs to be billed to APPLICANT. APPLICANT agrees to make additional payments upon notification by the COUNTY when they are necessary as costs are incurred. 4. The Base Fee shall be in addition to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board of County Commissioners for the consideration of an application or additional COUNTY staff time or expense not covered by the Base Fee. If actual recorded costs exceed the initial Base Fee, APPLICANT shall pay additional billings to COUNTY to reimburse the COUNTY for the processing of the PROJECT mentioned above. APPLICANT acknowledges that all billing shall be paid prior to the final consideration by the COUNTY of any land use permit, zoning amendment, or subdivision plan. APPLICANT Date: 10/23 /cJ!? Cordilleran Compliance Services, Inc. Print Name Mailing Address: _ 826 21 1/2 Road Grand Junction, CO 81505 10/2004 Page4 APPENDIXF SITE PLAN AND EQUIPMENT INFORMATION SR 598-36-1 PAD ;_,~'il::cl.Jc-.. !=ROPOSEC NEUJ COM!=RESSOR o\"6 '1c \ \ I \ \ I I \ \ \ \ /)v \ ( _,,.,-"" -~ \' _,,,/Ir'"_,-~\>- <,,_,_.,,,.,-)~ \ \ \ \ I ' \ I I \ \ ' \ I I I I \ \ I \ I I I I I I \ I \ I \ I I \ \ I I I I I I I I I I I I I I I I I ;c:' I i LJ l Li l '.J ' I I I I I I I I I I I \ \ \ \ Chevron U.S.A. Inc. eiL.T coL.o. ~~12 SUNRISE 61..VC. DATE:10-oa-oa 0 ~ 1,., CONS'!'RUC'!'ION SURVEYS, INC. 81.Je...• .......... ~ s I !.. ,. ' co 81 ~ & 2 :::::::::o::::R::::A w::::N::::::::s Y::::: ::::::::1 M::::::::::::::::::o::::w::::G:::::cH::::EVR::::::::oN::::/::::cH::::E::::v-::::A::::ss::::L r::::s::::: ,....,...;:.-'. ~1~·81~·&1&~ SCALE: 1" = 60' SHEET: 1 OF 1 G3516 LE GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron CATERPILLAR• GAS COMPRESSION APPLICATION ENGINE SPEED (rpm): COMPRESSION RATIO: AFTERCOOLER WATER INLET (°F): JACKET WATER OUTLET (°F): COOLING SYSTEM: IGNITION SYSTEM: EXHAUST MANIFOLD: COMBUSTION: NOx EMISSION LEVEL (g/bhp-hr NOx): I RATING I ENGINE POWER INLET AIR TEMPERATURE ENGINE DATA FUEL CONSUMPTION INLET MANIFOLD PRESSURE IGNITION TIMING EXHAUST STACK TEMPERATURE 1400 8:1 130 210 JW+OC,AC ADEM3 ASWC Low Emission 1.5 EXHAUST GAS FLOW(@ stack temp, 14.5 psia) EXHAUST GAS MASS FLOW EMISSIONS DATA NOx (as N02) co THC (molecular wt. of 15.84) NMHC (molecular wt. of 15.84) NMNEHC (molecular wt. of 15.84) HCHO (Formaldehyde) C02 EXHAUST OXYGEN HEAT REJECTION HEAT REJ. TO JACKET WATER HEAT REJ. TO ATMOSPHERE HEAT REJ. TO LUBE OIL HEAT REJ. TO AFTERCOOLER HEAT EXCHANGER SIZING CRITERIA HEAT REJ. TO JACKET WATER/LUBE OIL CIRCUIT HEAT REJ. TO AFTERCOOLER CONQITIONS AND pEFINIJIONS I I Piceance Notes (1) (2) (3) (4) (5) 15) (6) (6) (6) (6) (6) (6) (6) 17\ (8) (8) (8) 18\19) c10) I 19\110\ FUEL SYSTEM: HPGIMPCO with Air Fuel Ratio Control SITE CONDITIONS· FUEL: Picance Fuel FUEL PRESSURE RANGE (psig): 35.0-40.0 FUEL METHANE NUMBER: 67.8 FUEL LHV (Btu/sc~: 983 ALTITUDE (ft): 6250 MAXIMUM INLET AIR TEMPERATURE (°F): 100 NAMEPLATE RATING: 1340 bhp@1400rpm LOAD bhp OF Btu/bhp-hr in Hg(abs) 0 BTDC OF ft3/min lb/hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr % DRY Btu/min Btu/min Btu/min Btu/min Btu/min Btu/min I MAXIMUM RATING 100o/o 1340 49 7635 69.5 29.6 885 7803 13285 1.50 2.24 2.77 0.54 0.28 0.27 527 8.0 41987 5313 6262 10640 53700 I 15479 SITE RATING AT MAXIMUM INLET AIR TEMPERATURE 100% 75% I 55o/o 1219 914 I 670 100 100 100 7730 8033 8384 64.1 50.4 38.8 29.6 29.6 29.6 879 870 872 7133 5388 3812 12192 9266 6533 1.50 1.50 1.50 2.27 2.32 2.26 2.87 3.14 3.25 0.56 0.62 0.64 0.29 0.31 0.32 0.28 0.31 0.32 533 558 579 7.9 7.7 7.5 39875 34420 30217 4992 4187 3543 5947 5133 4507 14742 9953 3506 Engine rating obtained and presented in accordance with ISO 3046/1, adjusted for fuel, site altitude and site Inlet air temperature. 100% rating at maximum inlet air temperature is the maximum engine capability for the specified fuel at site altitude and maximum site inlet air temperature. Max. rating is the maximum capability for the specified fuel at site altitude and reduced Inlet air temperature. Lowest load point is the lowest continuous duty operating load allowed. No overload permitted at rating shown. For notes information consult page three. PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 PAGE 1 OF4 G3516 LE GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron GAS COMPRESSION APPLICATION Piceance Engine Power vs. Inlet Air Temperature 1450 1400 c. "' 1350 .0 ~ 1300 0 1250 a. " c: 1200 ·0i c: w 1150 1100 1050 30 40 50 60 70 BO 90 Air Temperature, °F Engine Power vs. Engine Speed 1600 1400 c. 1200 "' .0 i 1000 " 0 BOO a. " c: 600 ·0i c: w 400 200 0 900 1000 1100 1200 1300 Engine Speed (rpm) Engine Torque vs. Engine Speed 6000 5000 .0 ;;:; "' 4000 " !! 0 ,_. 3000 " c: .i5> 2000 c: w 1000 0 900 1000 1100 1200 1300 Engine Speed (rpm) PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 -- 100 1400 1400 110 CATERPILLAR• 120 130 .:::. Max Power vs. 1500 Speed Capability for Site Conditions D Full Continuous Operating Range at Standard Conditions -> Max Torque vs. 1500 Speed Capability for Site Conditions 140 PAGE 2 OF 4 G3516 LE GAS COMPRESSION APPLICATION mms GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron Piceance 1. Engine rating is with two engine driven water pumps. Tolerance is± 3°/o of full load. 2. Fuel consumption tolerance is± 3.0o/o of full load data. 3. Inlet manifold pressure is a nominal value with a tolerance of± 5 o/o. 4. Exhaust stack temperature is a nominal value with a tolerance of (+)63°F, (-)54°F. 5. Exhaust flow value is on a "wet" basis. Flow is a nominal value with a tolerance of± 6 o/o. CATERPILLAR" 6. Emission levels are at engine exhaust flange prior to any after treatment. Values are based on engine operating at steady state conditions, adjusted to the specified NOx level at 100% load. Fuel methane number cannot vary more than± 3. NOx tolerances are +111%, -96°/o of specified value. All other emission values listed are higher than nominal levels to allow for instrumentation, measurement, and engine-to-engine variations. They indicate "not to exceed" values. 7. Exhaust Oxygen level is the result of adjusting the engine to operate at the specified NOx level. Tolerance is± 0.5. 8. Heat rejection values are nominal. Tolerances, based on treated water, are± 10o/o for jacket water circuit,± 50% for radiation,± 20% for lube oil circuit, and ± 5% for aftercooler circuit. 9. Aftercooler heat rejection includes an aftercooler heat rejection factor for the site elevation and inlet air temperature specified. Aftercooler heat rejection values at part load are for reference only. Do not use part load data for heat exchanger sizing. 10. Heat exchanger sizing criteria are maximum heat rejection for the site, with applied tolerances. PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 PAGE 3 OF 4 G3516 LE GAS COMPRESSION APPLICATION Constituent Water Vapor Methane Ethane Propane I so butane Norbutane lsopentane Norpentane Hexane Heptane Nitrogen Carbon Dioxide Hydrogen Sulfide Carbon Monoxide Hydrogen GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron Piceance Abbrev Mole'& ~Qrm H20 0.000 0.000 Fuel Makeup: CH4 88.916 88.924 Unit of Measure: C2H6 5.679 5.680 C3H8 1.686 1.686 QalQulated Euel E'tQRei:ties iso-C4H10 0.337 0.337 Caterpillar Methane Number: nor-C4H10 0.350 0.350 iso-C5H12 0.141 0.141 Lower Heating Value (Btu/sci): nor-C5H12 0.105 0.105 Higher Healing Value (Btu/sci): C6H14 0.100 0.100 WOBBE Index (Btu/sci): C7H16 0.100 0.100 N2 0.122 0.122 RPC (%)(To 905 Btu/sci Fuel): C02 2.428 2.428 H2S 0.000 0.000 Compressibility Factor: co 0.000 0.000 Steich AIF Ratio (VolNol): H2 0.000 0.000 Steich AIF Ratio (Mass/Mass): CATERPILLAR• Picance Fuel English 67.8 983 1087 1226 100% 0.997 10.23 15.93 Oxygen 02 0.012 0.012 Specific Gravity (Relative to Air): 0.642 Helium HE 0.005 0.005 Specific Heat Constant (K): 1.301 Neopentane neo-C5H12 0.000 0.000 Octane C8H18 0.000 0.000 Nonane C9H20 0.010 0.010 Ethylene C2H4 0.000 0.000 Propylene C3H6 Q QQQ Q QQQ TOTAL (Volume%) 99.991 100.000 QQNCIIIQNS ANC CEEINIIIQNS Caterpillar Methane Number represents the knock resistance of a gaseous fuel. It should be used with the Caterpillar Fuel Usage Guide for the engine and rating to determine the rating for the fuel specified. A Fuel Usage Guide for each rating is included on page 2 of its standard technical data sheet. RPG always applies to naturally aspirated (NA) engines, and turbocharged (TA or LE) engines only when they are de rated for altitude and ambient Site conditions. Project specific technical data sheets generated by the Caterpillar Gas Engine Rating Pro program take the Caterpillar Methane Number and RPC into account when generating a site rating. Fuel properties for Btu/scf calculations are at 60F and 14.696 psia. Caterpillar shall have no liability in law or equity, for damages, consequently or otherwise, arising from use of program and related material or any part thereof. FIJEL LIQUIQS Field gases, well head gases, and associated gases typically contain liquid water and heavy hydrocarbons entrained in the gas. To prevent detonation and severe damage to the engine, hydrocarbon liquids must not be allowed to enter the engine fuel system. To remove liquids, a liquid separator and coalescing filler are recommended, with an aulomatic drain and collection tank to prevent contamination of the ground In accordance with local codes and standards. To avoid water condensation in the engine or fuel lines, limit the relative humidity of water in the fuel to 80o/o at the minimum fuel operating temperature. PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 PAGE4 OF 4 Shown with Optional Equipment FEATURES •DIESEL STRENGTH All Caterpillar® gas engines are built on diesel frames which means greater service life. Caterpillar gas engines inherit more from their diesel counterparts than just strength. They are backed by the same support system recognized as one of the most sophisticated and dependable in the world. •APPLICATION FLEXIBILITY Broad operating speed range and ability to burn a wide spectrum of gaseous fuels. •LOW EMISSIONS Low emission engines are capable of NO(x) levels as low as 2.0 grams/hp-hr. Lower emissions may be achievable for selected applications. Consult your Caterpillar dealer. Gas Industrial Engine G3516 660-1340 hp Standard and Low Emission SPECIFICATIONS V-16, 4-Stroke-Cycle, Spark Ignited Bore-in (mm) ........................ 6.7 (170) Stroke-in (mm) ....................... 7.5 (190) Displacement-cu in (L) .............. 4211 (69.0) Compression Ratio STD .................................... 9:1 LE ...................................... &1 Aspiration ................ Naturally Aspirated or Tu rboch a rged-Afte rcooled Lube Oil Capacity -gal (LI STD* ............................. 153 (580) STD** ............................ 171 (646) LE ................................ 106 (4021 Jacket Water System -gal (LI Capacity w/o Radiator ............... 53 (205) * Oil fill capacity with 21 elements **Oil fill capacity without elements • CATERPILLAR• GAS ENGINES Represent the latest technology in engine design. Engines are offered in both naturally aspirated and turbocharged/aftercooled configurations. TA is offered as standard and low emission. These different configurations offer: • High energy ignition systems for consistent firing • High efficient combustion chamber for complete burning of the fuel. • Modern component design such as deep cup, oil gallery piston. • ELECTRONIC IGNITION SYSTEM WITH DETONATION SENSITIVE TIMING The Caterpillar electronic ignition system provides optimized spark timing for all operating conditions. Timing is automatically controlled to maintain continuous detonation protection. C.i.TERPILLAR' STANDARD EQUIPMENT Air cleaners single stage, dry, with service indicator Breather, crankcase Carburetor natural gas Cooler lubricating oil Filter lubricating oil, RH Flywheel housing SAE No. 00 Governor Woodward Ignition system Altronic Ill Instrument panel, RH 8 gauge panel (STD) 12 gauge panel (LEI oil pressure coolant temperature oil pressure differential intake manifold temp (TA only) pressure (LEI service meter exhaust pyrometer (LEI Lifting eyes Manifold, exhaust watercooled Pumps, gear driven aftercooler water (TA only) jacket water Rails, mounting, 10 in. Regulator, gas pressure SAE standard rotation Thermostats and housing Torsional vibration damper CONTINUOUS RATINGS (BHP) Aspiration 1400 rpm LE-90 1340 LE-130 1265 STDTA-90 STD TA-130 STD NA PHYSICAL FACTORS LE STD TA STD NA Height in(mm) 73.2 (1859) 73.2 (1859) 75.2 (19111 1300 rpm 1245 1175 1200 rpm 1150 1085 1085 1050 660 Width in (mm) 67.1 (1703) 67.1 (1703) 61.6 (1564) G3516 GAS INDUSTRIAL ENGINE OPTIONAL EQUIPMENT Cooling systems high temp (LE only) Exhaust fittings Muffler Power takeoffs Starting systems Tachometer Low BTU arrangements Landfill arrangements Air head for 3161 CSA ignition Air-to-air aftercooler connection 1100 rpm 1000 rpm 1050 995 995 960 605 Length in(mm) 131 (3327) 131 (3327) 126.4 (3211) 955 900 905 875 585 900 rpm 860 810 815 785 525 Weight lb (kg) 17 670 (8022) 17 470 (7931) 16 400 (7 446) 63516 GAS INDUSTRIAL ENGINE FUEL CONSUMPTION 13 000 12 000 i 11 000 €. 10 000 " &5 9000 8000 7000 c bkW 149 298 448 597 746 895 t400 rpm . I I I\ " / /1209 rp\11 N " V 1000 rpm -900 rpm 200 400 600 800 1000 1200 bhp •i•·•'·ilii 13 000 12 000 ~ 11 000 0. :§ 10 000 ~ 9000 8000 7000 > > c > ' bkW 149 298 448 597 746 895 ' _,,..1,200,rpm \.'\ ' 1000 rp 1 m ~ ~OOrpm ' ' ' ' 200 400 600 800 1000 1200 bhp Wjl1i~t.M 13 000 12 000 ~ 11 000 0. €. 10 000 ,E 9000 8000 7000 > > > > bkW 149 298 448 597 746 895 ........ 1200 ,rP"'! \1 \ 1boo 1rp~ ' ,, ' ' 900 rpm '(' ' '"' ' ' 200 400 600 800 1000 1200 bhp 18.3 16.9 15.5 14.1 12.7 11.3 9.9 18.3 16.9 ~ 15.5 ~ 14.1 .0 "' 12.7 :; 11.3 9.9 18.3 16.9 :c 15.5 ~ 14.1 !i 12.7 :; 11.3 9.9 :c ~ .0 "' :; C..i.TERPILLAR' bkW 149 298 448 597 746 895 13 000 12 000 ~ 11 000 0. ii 10 000 ~ 9000 8000 • 1400 ~pm -~ I'\ ~ 1200 f PIT} :::::_ 7 1000 ,rP'l} ·~ i:t< ~ 900 rpm -~ 7000 ' ' 200 400 600 800 1000 1200 bhp iil1+t.1pu1 bkW 149 298 448 597 746 895 > 13 000 12 000 ~ 11 000 0. :E 10 000 ~ 9000 8000 > / 1100 rpm. \ 1000 rpm ~ Ir .... ·" ""' 90 ,p n ..... 7000 > ' ' ' ' 200 400 600 800 1000 1200 bhp LE refers to Jaw emission engine configuration. STD refers to standard engine configuration. 18.3 16.9 ~ 15.5 ~ 14. 1 !i 12.7 :; 11.3 9.9 18.3 16.9 " 15.5 ~ ;i: 14. 1 ~ !i 12.7 :;; 11.3 9.9 90 refers to aftercooler water inlet temperature in 90° F (32° C). 130 refers to aftercooler water inlet temperature in 130° F (54° CJ. All data is based on standard conditions. 77° F (25° C) 500 ft Alt. These ratings do not allow for overload capability. C.lTERPILLAR' G3516 GAS INDUSTRIAL ENGINE GAS INDUSTRIAL ENGINE PHYSICAL FACTORS LEFT SIDE VIEW REAR VIEW [Q}J Centerline of Crankshaft ~ Centerline of Engine Jacket Water Outlet @ Airlnlet @ Exhaust Aftercooler water inlet []TI Rear face of Cylinder Block § Jacket Water Inlet Aftercooler water outlet @ Removal Distance Fuel Inlet See general dimension drawing 114-6637 for additional Electronic Ignition System (E.l.S.) engine detail and NA information. CONDITIONS AND DEFINITIONS Ratings are based on SAE J1349 standard conditions of 29.61 in Hg (100 kPa) and 77° F (25' C). These ratings also apply at IS03046, OIN6271, and BS5514 standard conditions of 29.61 in Hg (100 kPa), 81' F (27' C); and API 7B-11C standard conditions of 29.38 in Hg (99 kPa). 85' F (29' C). Ratings are based on dry natural gas having a low heat value of 905 btu/ft' (35.54 MJ/N m'). Variations in altitude, temperature, and gas composition from standard conditions may require a reduction in engine horsepower. For magneto ignition system engines see general dimension drawing 7W4452. Note: General configuration not to be used for installation. Turbocharged-aftercooled ratings apply to 5000 ft (1525 m) and 77' F (25' C). Naturally aspirated engines apply to 500 ft (150 m) and 77' F (25' C). For applications which exceed these limits, consult your Caterpillar dealer. Additional ratings may be available for specific customer requirements. Consult your Caterpillar representative for details. The International System of Units (SI) is used in this publication. Materials and specifications are subject to change without notice. LEH06163 (3-96) ©1996 Caterpillar Printed in U.S.A. Supersedes LEHH0572 All rights reserved. {NATCO] Emissions-free natural gas dehydration technology For each natural gas application, customers should fully examine their options and constraints when selecting a dehydration process technology which best fits their application. NATCO can help by providing cost effective specifically developed systems for removing moisture from the gas without glycol or BTEX vapors. • Glycol dehydration . • Regenerative dEisiccabt~ • Retr_i_9er~tiOri • Membranes • Environmental regulations • Waste. liabilit.ies • 1ritial capital expenditures ' •.}:>_p_ef~tiriQ c9s~~ ~,-pp_eratci_r'"'a¢c_ess_ • System downtim~ • TtJf,n~own __ te9~:i_[e_rD~rt · DESI-ORI'" emissions-free technology: Another option from NATCO NATCO has more application experience than any other manufacturer. Using state- of-the-art computer aided design and process simulation, NATCO ensures quality for cost effective natural gas dehydration technologies backed by superior craftsmanship. NATCO now offers an exciting dehydration option for producers and gas handlers. The DESI-ORI™ System - a complete line of proprietary desiccants and eutectics gives operators a cost effective solution for many dehydration applications. Issue 8 02.07 Our DESl-DRlrM desiccants are various blends of alkali-earth halide salts that have varying degrees of hydroscopicity. Depending on the specific application, either a single DESI-ORI™ desiccant or a series of increasingly hygroscopic desiccants can provide exactly the gas dryness you need. Page 3018-Al A simple, environmentally conscious system Unlike many other dehydration options, dehydration with the NATCO DESl-DRI™ System is a very simple process. Wet gas flows upward through one or a series of vessels that contain deliquescing beds with any one of five DESl-DRl 1 o.t desiccants. As wet gas contacts the DESl-DRITM tablets, moisture is removed from the gas and accumulates on the surface of the tablets. Eventually, enough water accumulates to cause a droplet of brine to form. In time, the brine makes its way down to a brine sump in the bottom of a vessel, collecting even more moisture in the process. Periodically, the brine is purged to an environmentally correct location, normally where other produced water is stored. There is no need for regeneration. New DESl-DRI™ tablets are used to replenish the beds at a rate consistent with your operational requirements. - _ 1!1~11 !J;ll'"'}JRffiJMll'J.11JHjJgcl Improved safety • No fire-haiard • N_p pµmps, burners, heat exchangers Reduced facility capital • Easy iriSti\llation • Small footprint • Low Capital expense Ree1uC:ed l>J>e~ati11!J costs . :·:·;'!·'·:--,-----=--=----::=::=-=-_--· • _SirliJ)le Una~_eQC!_ed :op_era,t_lon f ~§costly diiposal ·· • Low· maintenance--, --.·--: _--_; "-' --·-··:· • Lowperiodic costs • Nll :;'t~t'140Wri" iirni~~tio_ns: ~()Wer corlipliallce cos~s • Nii sfEX \i~porelllissions Issue 8 02.07 It is the operator's responsibility to ensure that the brine solution's metal halide salts are disposed of in an environmentally friendly manner, normally through discharge to the produced water system • Sales gas • Fuel_gas • SOLir gas · • lns_trument gas • Excess gas flow • Restricted access sites • Floating production platforms • R~plaCes oversized TEG units • Eni/irOhmental installations Page 3018-A2 APPENDIXG TRAFFIC IMPACT ANALYSIS CORDILLERAN October 16, 2008 Garfield County Building and Planning I 08 8th Street, Suite 40 I Glenwood Springs, CO 8160 I Subject: Chevron USA, Inc. 36-IB Compressor SUP Application Traffic Assessment and Trip Generation Letter To Whom It May Concern: 826 21 l/2 Road Grand Junction, CO 81505 T: 970.263.7800 F: 970.263.7456 This letter presents the results of a traffic assessment for the proposed compressor unit at the existing Chevron USA, Inc. (Chevron) 36-IB compressor facility. Chevron has submitted a Special Use Permit application to Garfield County for the addition of a compressor and ancillary equipment to the 36-lB facility. The compressor facility is located on approximately 3.1 acres of land lying in the SE/4 of the SW/4 of Section 36, Township 5 South, Range 98 West, 6'h Principal Meridian, Garfield County, Colorado. Chevron is proposing an additional compressor and ancillary equipment at the existing compressor facility for the purpose of boosting the rate and capacity at which the natural gas is moved out of the Skinner Ridge field. Access to the proposed project site will be from an existing private access at the end CR 211. Access to CR 211 will be via CR 204. County Roads 204 & 211 provides access to numerous oil and gas facilities located within Garfield County, while providing access to the Town ofDeBeque and Interstate 70. It is anticipated that 2-4 trips made by tractor trailers for the compressor and dehydrator unit delivery. After the equipment deliveries, subsequent vehicles could average 2 trips per day made by light-duty vehicles. The following table identifies the anticipated trip generation for the project. It is important to note that Chevron will be conducting numerous activities within the proposed area, and the traffic activity will occur with or without the site development and site operations of the compressor facility. Anticipated Traffic Impacts to Garfield Countv Roads 204 & 211 Trips per Tvoes of Vehicles dav Trios per week Light Trucks Tractor-trailers Total Vehicles 2-4 12-24 2-4 2-4 4-8 14-28 Cordilleran Compliance Services, Inc. Grand Junction, CO • Denver, CO Environmental Consulting Engineers and Scientists Trios per month 24-36 2-4 26-40 36-lB Compressor Unit Traffic Analysis Job# EG08333 October 16, 2008 Page2 Based on the current energy related traffic load on County Roads 204 & 211, Chevron's traffic activity should have a minimal increase on traffic activity including Light and Heavy vehicles. All vehicles hauling equipment and materials for this project will abide by Garfield County oversize/overweight permit requirements. Please do not hesitate to contact me at (970) 263-7800 should you have any questions or concerns regarding this information. Sincerely, Cordilleran Compliance Services, Inc. Tim Dobransky, CHMM Project Manager Cordilleran Compliance Services, Inc. Grand Junction, CO • Denver, CO Environmental Consulting Engineers and Scientists APPENDIX H EMERGENCY RESPONSE PLAN Chevron Ill MIDCONTINENT BUSINESS UNIT Skinner Ridge/ Piceance Basin EMPLOYEE EMERGENCY ACTION PLAN (29 CFR 1910.38) PROGRAM CONTENTS Statement of Policy Emergency Action Plan Scope Elements Alarm system Evacuation Training Appendix A Emergency Contact Numbers Revised 9/25/2006 Statement of Policy Facility and personnel safety will always take precedence over maintaining operations. Personnel will not attempt to continue working on or remain at a location if the facility is in an unsafe condition. All personnel are authorized to stop work if an unsafe condition posing an immediate hazard occurs. No reprimands will be given if the situation later proves less serious than thought. Hazards of a less serious nature should be brought to the attention of the supervisor who will assess the situation and initiate appropriate action. Under emergency response conditions, or drills, employees are expected to act only in accordance with their training. At no time will any employee place themselves, or allow themselves to be placed, into a life-threatening situation. The following priorities will govern our response to any emergency situation: 1. The safety of employees takes precedence over all other considerations. 2. We will minimize impact on the environment once the safety of all personnel has been secured. 3. We will endeavor to minimize damage to or loss of property and equipment, keeping safety and environmental concerns at the top of our priority list. Emergency Action Plan: Scope: This written plan covers the designated actions employees (Chevron & Contractors) associated with the Skinner Ridge Delineation Project (Pieance Creek/Debeque, Colorado) must take to ensure their safety from fire, bomb threats, gas leaks, severe weather, or other emergencies. Elements: Fires or other emergency situations should be verbally reported to the Chevron U.S.A. Inc. person in charge (PIC) in the field location. If they are unavailable call (307) 783-9428, where appropriate. 9-1-1 should also be called to initiate public emergency response resources to report the incident. In the event that evacuation is required all employees shall evacuate per posted instructions (if applicable) and report to the following designated muster points: Primary Muster Point: Hiner Gate (N39 Deg 32.474 W 108 Deg 19.518 Elevation 5839) Alternate Muster Point: Cowboy Chapel (N39 Deg 29.115 ft, W 108 Deg 19. 705 ft Elevation 5506) Field Rally Point: Main Deer Camp approx. 2.1 miles north of Hiner gate on right hand side of road at log cabin. (N39 Deg 34.311 ft, W 108 Deg 20.776 ft Elevation 5985) Note: See attached map. 1 Operator (Person In Charge) is designated to perform a final building check to ensure all temporary/portable office building/s have been evacuated in the event of an emergency. Designated individual/s will then remove the sign-in log and report to the muster point. Muster points will be discussed daily prior to job executions and will be carried over into night time operations should they exist. There are no critical operations at the Skinner Ridge Project/ Field that would require personnel to remain behind and operate. However, to m1nim1ze the dangers associated with an emergency, any trained employee may shut off the following energy sources after evacuating temporary office facilitiy/s: Building Energy Type Utility Shut-off Location Temporary On-Site Office -Drilling or testis location. Electricity-Generator Propane/Diesel fired devices. Posted at entrance to Drilling rig location. Visitors are required to sign a logbook upon entering any field office or location whether permanent or temporary. They will be required to note the time of their arrival, work location, emergency contact numbers (if not already on file) and departure time from the facility. In the event of an emergency, Chevron personnel will use the logbook, verbal communication, cell or satellite phones and/or radios at the muster point to account for all personnel. If necessary, available, pre-designated personnel may initiate a search for any missing person as long as it is safe to do so. For Field Work sites, personnel present on location are noted by crew leaders and supervisors. Emergency muster points are pre-established and should be discussed daily before each job during (JSA) job safety analysis. In the event of an emergency, personnel will evacuate to the designated muster point where a headcount will be conducted. Employees who have been certified in First Aid/CPR and have received Bloodborne Pathogen training may render assistance to injured employees. For further information about this plan, contact the Charlie Eagler (HES Champion) at 307- 799-6314 (cell). If he cannot be reached, please contact George Badovinatz (Operations Supervisor) at 307-799-7217 (cell) I 307-783-3613 (office), Dave Howard (Facility Rep.) at 970-986-9823 (cell) I 970-283-1041 (office), or Fairl Dixon (Field Operations) at 970-379- 6688 (cell) or 254-387-4949 (satellite). 2 Alarm System: The only current active alarms will be designated "drilling rig " alarms and will be noted on the sign in sheet at rig site. Notification of an emergency situation may be given by using either of the following methods: Temporary Office Facility/s • Verbally • Company Radio • Telephone/ Cell Field Offices and Field Work Sites • Verbally • Company Radio • Telephone/ Cell Evacuation: Employees shall follow the procedures noted below for evacuation in emergency situations: Emergency Employee Action Bomb Threats Evacuate to the Cowboy Chapel parking lot. Fire/Explosion Evacuate to the Cowboy Chapel parking lot. Gas Leak Evacuate to the Cowboy Chapel parking lot if possible or upwind of leak. High Winds, Thunderstorms or Tornadoes Seek immediate shelter in a non-hazordous location. All-Clear Signal: When employees have been evacuated from any building/s or worksite/s, they may only be re-entered after it has been determined to be safe to do so by the designated on-site "Person in Charge". This may be done in consultation with local emergency responders or Chevron Management as appropriate. The Chevron designated onsite "Person In Charge" shall communicate the all-clear signal verbally to all affected employees. 3 Training: Duties of individuals, trained to carry out the safe and orderly emergency evacuation of the Skinner Ridge Delineation Project Temporary office/s or worksite/s are noted below: Position Duty All Employees Evacuate and assist others in leaving building/s or worksite/s and reporting to muster point. Designated "Person in Charge" Make final sweep of building/s or worksite/s to insure that all rooms or sites are evacuated. Take building/s sign-in log sheet/s to the muster point. Operations Supervisor (or designee) Oversee evacuation, direct additional response as appropriate. Determine when all-clear may be given. Reviews are conducted with employees covered by the plan at intervals noted below. Documentation of each review is contained in the Skinner Ridge temporary office/s located at the current site/s of drilling operations. • Upon employee's initial assignment to the Skinner Ridge Project, employees receive training on this plan. • Whenever the employee's responsibilities or designated actions under the plan change. • Whenever the plan is changed. Documentation of each review is contained in the Skinner Ridge Temporary Office/s located at the Hiner Gate. Building evacuation drills will be conducted in accordance with local fire codes on an annual basis. 4 Name George Badovinatz David Qualls Dave Ho\Yard Fairl Dixon Tlln Bairctt Sean N onis CraigTysse Charlie Eagler Julie Justus Name Scott Davis Jamie Bantl1ardt Michael DcBe1ry Jlln 13annun Mark Hinton Howard Mc Kiimcy Steve L'lStrapes Name Curtis Hadley Randy Golden Dave Vrootn !Joyd Richardson B1uce 13ey11on Mclaitic Auze1111e Ken Jackson Appendix A Skinner Ridge Emergency Contact Numbers CHEVRON PERSONNEL Title Office Cell Operations Supervisor 970-257-6002 307-799-7217 Construction Manager 970-257-6008 504-914-4254 Constrution Representative 970-257-6024 970-986-9823 Operator 970-683-5105 970-379-6688 Facilities Engineering 281-529-7154 Environmental Specialist 970-257-6001 970-270-7517 Ranch Manager HES Champion 970-257-6006 970-778-0989 Rcgulat01y Specialist 970-257-6042 970-589-5036 CHEVRON MCBU Management Title Office Cell MCBU Vice President 281-561-3713 832-851-9469 Project Manager 281-561-3719 Operations Manager 970-257-6005 General Manager 432-687-7161 432-238-9424 Project Coordinator 281-561-3687 281-989-7229 Facilities Tcain Lead 281-529-7156 Legal Counsel 281-561-37 36 281-797-3748 MCBU HES Support Staff Title Office Cell HES Champion Lead 281-561-3885 713-598-3769 Sr. Safety Specialist 281-561-4854 713-826-1804 Sr. Safety Specialist 281-561-3797 713-851-9251 Contractor Safety Specialist 970-257-6003 970-640-3185 1~11viro1unental Lead 281-561-3689 713-210-9275 Air Specialist 281-561-4997 Regulatoiy/I>ennitti11g 281-561-4991 281-435-0666 5 Satellite 254-387-4267 254-387-4949 254-240-5397 Other Numbers 281-582-5243 pager Other Numbers Non-Chevron Assistance Government Agencies, First Aid, and Municipalities Emergency Public Service Company of Colorado Sheriff's Departments 911 (800) 772-7858 Garfield County (970)-945-0453 Mesa County (970)-244-3500 Federal Bureau of Investigation (970)-242-8360 Town of DeBeque (970) 823-5531 Town Marshall (970)-283-5146 Mesa County Dispatch (970) 241-6704 Debeque Fire Department (970) 283-8632 Fire Chief-Nick Marx Cell Phone (970) 261-3305 Grand Junction Hospital (970) 244-2273 St. Mary's CareFlight (800) 332-4923 In the event St. Mary's Careflight is needed, the Debeque Fire Department must also be notified as a backup. SLM To report a fire Colorado DEQ Forest Service OSHA COGCC Parachute Office COGCC Debeque Office Weather Services Recorded Weather Worker's Compensation Contract Construction Companies Flint Construction Elkhorn Construction Hyland Enterprise Compression Other Municipalities Town of Parachute Town of Rifle Rifle Fire Department Non-Emergency Glenwood Springs Hospital Rifle Hospital 6 (970)-244-3000 (970)-257-4800 (877)-518-5608 (970)-242-8211 (303)-844-1600 (970)-285-9000 (970)-283-8635 (970)-243-7007 (970)-243-0914 (970)-248-7347 (970) 625-4265 (970) 625-4180 (970) 625-8270 (970) 285-7630 (970) 625-2121 (970) 625-1220 (970) 945-6535 (970) 625-1510 APPENDIX I ARRANGEMENT FOR SEWAGE HAULING/DISPOSAL 9/17/2007 DOWN VALLEY SSP'TIC:: E'.. DR AfN, INC:: S<:Oi"f MOY!!?. OWtJER ' ' P.D, BOX 1929 ' RIFl(, <:O 81650 970-625-5556 10LL Fl?Co 866-311-5556 l'k-:1~ ... · ~i•,:~· ... ·p'. ;hi_~ kt:,,;1 .;c• <.Yr!lfil>1'.i;1n \h.1( I h'""ll V:dk;, "~·i't:,,; 11. ii! pt<n i1!1· '."'.:\' J~!O.: ,.,,i;,_·;;1i~1;1. /\1;.1hk '' ;ikr lnulin!; ;1:id l'1'f;/~k (,1;ii...~. t'r ;;<\ .;~-1';;1.v. 1 1 ;11~.1 J;ou •,'-.'' i,·,_· ;,1h! T.id, tc1' .. ti t;,~ ( h;:H1't1 t_ii\ 1 , .• '11 i :·;. ~ jq; ll 11\\ 11 v a!ky ::;,'jl'.i (' ~' ill rr·n·i<li: ::t'ilt)\t' ;.c:-. ki:--. ti•r { T~·'<'fnll \ _Id :~ ·= Jlw l't1'<·;wl.1' 1°h'•.:i> h;1,i11 !ll<'lu1hn~', Dn:linii. (»mnplc~inn. 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Prepared for: Chevron North America Exploration and Production Company Prepared by: Westwater Engineering 2516 Foresight Circle #1 Grand Junction, CO 81505 May 2008 1.0 INTRODUCTION 1.1 Project Description Chevron is planning a series of projects in Clear Creek and adjacent drainages in Garfield County, approximately 16 miles northwest of DeBeque, Colorado. These proposed projects include a three well pads (698-04-AV, 698-09-BV, 698-16-AV) and a new access road on the west side of Clear Creek, a well pad (698-09-AV) on the east side of Clear Creek, three bridges, a fill area, and a utility corridor (Chevron, 2008). The Chevron Hiner Gate facility is near the southern boundary of the area surveyed by West Water Engineering. The north boundary of the survey area is approximately .75 miles south of the Tom Creek-Clear Creek confluence. The survey area referred to in this report is about 374 acres in size. (Figure 1). 1.2 General Survey Information Mapped soil types, as published by the Natural Resources Conservation Service (NRCS), U. S. Department of Agriculture (USDA), were reviewed to determine the soil types and vegetation characteristics of the survey site and surrounding property (NRCS 2008). WestWater Engineering (WWE) biologists had recently surveyed the area immediately north of the current survey boundary and referred to that report as needed (WestWater, April 2008). A field inspection of the survey area was conducted by WWE biologists on May 2, 6, and 7, 2008. WWE biologists surveyed the area 150 ft. on either side of the proposed road alignment and facilities to identify vegetation communities and to search for, identify, and map noxious weed species. Vegetation types were determined through field identification of plants, aerial photography, and on-the-ground assessments of plant abundance visible during the survey. Identification of plant species was aided by using pertinent published field guides (Whitson et al. 2001, CWMA 2007, Kershaw et al. 1998, Weber 2001). Photographs were taken of the general project location, vegetation, terrain, and other specific biological findings and can be found in Appendix C. Locations of weeds and other features included in this report were recorded with the aid of a handheld global positioning system instrument (GPS) using NAD83/WGS84 map datum, with all coordinate locations based on the Universal Transverse Mercator (UTM) coordinate system in Zone 12S. 2.0 LANDSCAPE SETTING 2.1 Vegetation Communities Three vegetation communities predominate in the survey area: riparian, mountain shrub, and sagebrush. Riparian vegetation communities are found along Clear Creek and adjoining drainages. The overstory consists primarily of mountain boxelder (Acer negundo ), New Mexico locust (Robinia neomexicana), and a few narrow leaf cottonwood trees (Populus angustifolia). The understory Westwater Engineering Page I of24 5/27/2008 beneath the boxelder is oakbrush (Quercus gambelii), Utah serviceberry (Amelanchier utahensis), skunkbush sumac (Rhus trilobata), chokecherry (Prunus virginiana), tall fescue (Thinopyrum ponticum), and clematis (Clematis ligusticifolia). New Mexico locust stands host a much sparser understory of primarily native and weedy forbs. Mountain shrub communities are often found on steeper and moister slopes. Plants found here include skunkbush sumac, oakbrush , Utah serviceberry, scattered Utah juniper (Juniperus osteosperma), Wyoming big sagebrush (Artemisia tridentata Nutt. ssp. wyomingensis), rubber rabbitbrush (Ericameria nauseosus), and Indian ricegrass (Achnatherum hymenoides). Thick stands of basin big sagebrush (Artemisia tridentata Nutt. ssp. tridentata) are found adjacent to the riparian corridor, especially on alluvial fans. The understory often contains very dense cheatgrass (Bromus tectorum) as well as small amounts of Indian ricegrass, penstemon (Penstemon spp.) and prickly pear cactus ( Opuntia spp.). Included in the survey area are irrigated and non-irrigated meadows and a few moderately sloping small drier areas. The meadows include various hay and pasture grasses. The drier sites host basin big sagebrush, Wyoming big sagebrush, greasewood (Sarcobatus vermiculatus), shadscale saltbush (A triplex confertifolia), western wheatgrass (Pascopyrum smithii), bluebunch wheatgrass (Pseudoroegneria spicata), and Indian ricegrass. 2.2 Soil Types and Terrain Soil types and the vegetation that they support vary with parent material, elevation, and slope aspect. The terrain in the Chevron Clear Creek I Deer Park to Tom Creek Weed Survey project area is typically gently sloping valley bottoms but a small amount of steeper mountain toe slopes is also included. Elevations range from 5760 feet in the Clear Creek drainage to 6100 feet on adjacent slopes. The project area includes two main types of soil. The almost level flood plain of Clear Creek lies on Cumulic Haploboroll, 1-3% slopes. The Cumulic Haploboroll formed from Wasatch shale or Green River shale alluvium and has a thickened surface horizon from material added during periods of flooding. Vegetation observed on the Cumulic Haploboroll soil was mountain boxelder and introduced and naturalized New Mexico locust. The New Mexico locust has crowded out most native shrubs one would expect, such as skunkbush sumac. The side slopes of Clear Creek drainage consist ofHapple very channery sandy loam, 3-12% slopes, and the same Happle soil on 12-25% slopes. The Happle soil formed on toeslopes and alluvial fans are from Green River formation alluvium or colluvium. Characteristic native vegetation on the Happle soil is Wyoming big sagebrush, bluebunch wheatgrass, needle and thread grass (Hesperostipa comata), and Indian ricegrass. West Water Engineering Page 2 of24 5/27/2008 3.0 NOXIOUS WEEDS 3.1 Introduction to Noxious Weeds Noxious weeds are plants that are not na tiv e to an area. Mos t have come from Europe o r Asia, eith e r accidenta ll y o r as ornamentals th at have escaped. Once establi shed in a ne w environment they tend to spread quickly since in sects, di seases and animals that normally control th e m are absent. Noxious weeds are spread by man, animal s, water, and wind . Prime loca ti ons for the establishment of noxious weeds include roadsides, s it es cleared for con structi on, areas that a re overused by animals or hum ans, wetlands, a nd rip arian corridors. Subsequent to so il disturbances, vegetation communitie s can be s usceptible to infestat ions of inv as ive or exotic weed spec ie s . Vegetatio n removal a nd so il disturbance during construction can create optima l conditions fo r the establishment of inv as iv e, non-n ative spec ies. Construction equipment trav e lin g from weed-infe sted areas into wee d-free areas could di s perse nox io us or invasive weed seeds and propagates, re sultin g in th e estab li shme nt of th es e weeds in previous ly weed-free areas (Photo 1). Photo 1. Potential weed vector -acc umulated soil on equipment. The Co lora do Nox ious Wee d Act (State of Co lo rado 2005) requires local govern in g bodies to develop noxio us weed mana gement plan s. Both the State of Co lorado and Garfield County ma int ai n a li st of pl ants th at are co ns id ered to be nox ious wee ds. The State of Co lorado noxious wee d list in c lud es three categories . List A spec ies mu st be eradic ated whenever detected (no ne were fo und). Li st B spec ie s in clud e weeds whose s prea d sho uld be halted ( 4 spec ies fo und). List C spec ie s are wide spread but the State will ass ist loca l jurisdi cti ons which choose to manage th ose weeds (3 sp ec ie s found). WestWater Engineerin g Page 3of24 5/2 7/2008 ) The Garfield County Weed Advisory Board has compiled a list of 21 plants from the State list considered to be noxious weeds within the county (see Appendix A). Five of those weed species are found in, or near, the project area. The Garfield County Weed Advisory Board has duties to: l) develop a noxious weed list; 2) develop a weed management plan for designated noxious weeds; 3) recommend to the Board of County Commissioners that identified landowners submit an integrated weed management plan for their properties. 3.2 Observations Seven listed weed species are found in the project area. The most prevalent listed weeds are houndstongue, common mullein, musk thistle, and cheatgrass. Problematic, but not listed, weed species commonly found in the project area are purple mustard (Chorispora tenella) and horehound (Marrubium vulgare ). These two weeds are scattered throughout the survey area, especially in moist locations, except for well maintained pastures and meadows. Most dense weed infestations, with the exception of cheatgrass, are found within I 00 feet of Clear Creek (Appendix C, Photo 2). The triad ofhoundstongue, common mullein, and musk thistle is especially common along the drainage (Appendix C, Photo 3). Houndstongue is most common, followed by common mullein and musk thistle. Density of these three weeds along Clear Creek is moderate to thick except in the northern portion of the project area. Between the north survey boundary and the southern extreme of Section 4, T6S, R98W their density along the creek is noticeably thinner. Brushy areas commonly have very thinly scattered houndstongue, common mullein, or musk thistle (Appendix C, Photo 4). A notable exception is the area around the eliminated well pad 698-04-BV which has few to no weeds. Steeper mountain toe slopes are essentially free of weeds except for scattered cheatgrass. The large meadows west and northwest of the Hiner Gate are also essentially weed free except where they meet the creek bank (see Cover Photo). Two weed infestations adjacent to, but outside, the project area were deemed noteworthy. Russian knapweed was found in Deer Park Gulch south and east of the Hiner Gate and common burdock was found west of the Clear Creek I Tom Creek confluence. The latter infestation was not observed in the April 2008 Chevron Clear Creek I Tom Creek survey because it had been too early for the common burdock to sprout in the shade of the New Mexico locust thicket. The general location of the Garfield County and State listed weeds are plotted on the project map, Figure I, and are listed in Table I. Widespread infestations that are found throughout the project area are not included on the map. Specific UTM coordinates of isolated or dense weed infestations can be found in Appendix B. West Water Engineering Page 4 of24 512712008 • Weed Patches Linea r Infestations -ACRE3 -ARMl2 -CYOF, VETH, CANU4 -TARA c::I Weed Survey Alea LJBLM 0 Figure 1: Chevron Clear Creek Tom Creek to Deer Park IVNWMP Westwater Engineering May 2008 0.1 Miles 0.2 0.4 T bl 1 Ob a e serve d N OXIOUS W dL t' · th P . tA ee oca 10ns m e ro1ec rea. Common Name* Scientific Name General Location and Comments USDA Symbol Common Burdockc Scattered in usually small random patches along Clear Creek. A larger Arctium minus patch in a New Mexico locust thicket is located west of the Clear Creek I ARMI2 Tom Creek Junction just north of the project area. Common Mulleinc Common along Clear Creek, occasionally in small dense patches. Also Verbascum thapsus scattered very thinly throughout much of the sagebrush and oakbrush VETH areas. Cheatgrassc Thinly scattered throughout much of the survey area. Sagebrush habitat Bromus tectorum however often contain very dense stands of cheatgrass. BRTE Houndstongue" Common along Clear Creek. Occasionally in large patches (Appendix C, Cynoglossum ofjicinale Photo 5). Can also be found thinly scattered along roadways and in CYOF brushy areas. May occur on drier sites under the shade of shrubs such as oak brush. Musk Thistle" Generally spread thinly along Clear Creek but can occur anywhere Carduus nutans except for steep hillsides and maintained meadows. There are occasional CANU4 small but dense infestations along Clear Creek. Russian Knapweed8 Found outside, but near, the project area in Deer Park Gulch. Infestations Acroptilon repens of Russian knapweed are likely farther up the gulch (Appendix C, Photo ACRE3 6). Tamarisk" Fairly common along Clear Creek drainage in continuous patches. A few Tamarix spp. plants were found near seeps on a mountain side slope about 100 feet TARA above Buck Gulch. * Government weed listing: Bold -Garfield County, Colorado. Superscript -Colorado State B or C list. 3.3 Treatment and Control of Noxious Weed Infestations Invasive and noxious weeds commonly occur along ditches, creek corridors and adjacent drainages (especially in riparian areas), abandoned fields, and disturbed areas such as well pads, pipeline routes, and roadsides. Five weed species from the Garfield County list were found in the project area and are indicated by bold type in Table 2. Those in regular type were also observed during the survey and are listed by the State of Colorado as noted (CWMA 2007). Included in Table 2 are weed life cycle type and recommended control methods for each weed species. WestWater Engineering Page 6 of24 512712008 Table 2. Weed Control Methods. Common Name* Scientific Name Type** Control Methods USDA Symbol Common Burdock' Cutting and digging at rosette through early seed stages. Arctium minus B Reseed with aggressive grasses. Approved herbicides if ARMl2 needed. Common Mulleinc Cut and dig rosettes and bolting plants prior to seed set. Verbascum thapsus B Reseed with aggressive grasses. Herbicides may be VETH necessary on dense infestations. Cheatgrassc Eliminate seed source. Re-vegetate with native grasses. Bromus tectorum A Herbicide treatment in early spring and fall. A void BRTE overgrazing. Houndstongue8 Reseed with aggressive grasses. Grub at rosette through Cynoglossum ofjicinale B early seed stages. Herbicides at rosette or pre-bud stages. CYOF Musk Thistle8 Tillage or hand grubbing in the rosette to pre-flowering Carduus nutans B stages. Repeated mowing at bolting or early flowering. Seed CANU4 head and rosette weevils, leaf feeding beetles. Herbicides in rosette stage. Russian Knapweed8 Herbicides in bloom or seed stage, or near the first killing Acroptilon repens CP frost. Repeated efforts may be necessary. Plant aggressive ACRE3 grasses. Tamarisk8 Repeated flooding prevents seedling establishment. Tamarix spp. Herbicide treatment on basal portion of young plants. Cut TARA p larger plants and treat with herbicide plus adjuvant within 30 minutes (Appendix C, Photo 7). Plant area with native species to shade out tamarisk. Tamarisk leaf beetle. * Government weed listing: Bold -Garfield County, Colorado. Superscript -Colorado State B or C list. **Type: A= annual; B =biennial; CP =creeping perennial; P =perennial 3.4 Recommended Treatment Strategies It is important to know whether the target is an annual, biennial, or perennial to select strategies that effectively control and eliminate the target. Treatment strategies are different depending on plant type, which are summarized in Tables 3 and 4. Herbicides should not always be the first treatment of choice when other methods can be effectively employed. Westwater Engineering Page 7 of24 5/27/2008 Table 3. Treatment Strategies for Annual and Biennial Noxious Weeds 7: ar2et: Prevent Seed Production I. Hand grub (pull), hoe, till, cultivate in rosette stage and before flowering or seed maturity. If seeds develop, cut and bag seed heads. 2. Cut roots with a spade just below soil level. 3. Treat with herbicide in rosette or bolting stage, before flowering. 4. Mow biennials after bolting stage, before seed set. Mowing annuals will not prevent flowering but can reduce total seed production. (S1rota 2004) Table 4. Treatment Strategies for Perennials Target: Deplete nutrient reserves in root system, prevent seed production I. Allow plants to expend as much energy from root system as possible, do not treat when first emerging in spring, but allow growth to bud/bloom stage. If seeds develop, cut and bag if possible. 2. Herbicide treatment at bud to bloom stage or in the fall (recommended, after August 15 when natural precipitation is present). In the fall, plants draw nutrients into the roots for winter storage. Herbicides will be drawn down to the roots more efficiently at this time due to translocation of nutrients to roots rather than leaves. If the weed patch has been present for a long period of time, another season of seed production is not as important as getting the herbicide into the root system. Spraying in fall (after middle August) will kill the following year's shoots, which are being formed on the roots at this time. 3. Mowing usually is not recommended because the plants will flower anyway; seed production should be reduced. Many studies have shown that mowing perennials and spraying the re-growth is not as effective as spraying without mowing. Effect of mowing is species dependent; therefore, it is imperative to know the species and its basic biology. Timing of application must be done when biologically appropriate, which is not necessarily convenient. 4. Tillage may or may not be effective. Most perennial roots can sprout from pieces only Y," -I" long. Clean machinery thoroughly before leaving the weed patch. 5. Hand pulling is generally not recommended for perennial species unless you know the plants are seedlings and not established plants. Hand pulling can be effective on small patches but is very labor intensive because it must be done repeatedly. (S1rota 2004) Herbicide treatment with two or more herbicide modes of action in fall (after approximately August 15 when natural precipitation is present) is the best method to control difficult species. Some weeds, particularly annuals and biennials, can develop resistance to herbicides. The ability to quickly develop immunity to herbicides, especially when they are used incorrectly, makes it imperative to use the proper chemicals at the correct time in the specified concentration. Most misuse is centered around excessive application either in concentration or frequency. This results in mostly top kill and an immune phenotype. 3.5 Life Cycle and Management Calendars Best results in the control of certain specific noxious weeds can be achieved by following the recommended timetable presented in Table 5. Westwater Engineering Page 8 of24 5/27/2008 Table 5. Noxious Weed Biology js pec ies 1Type 1 p-;;;-IFeb j ,.-M-ar-ch-IApr il ~!June !Jul y jAug lsept ~I Nov loec IHound ston gue ~!rose ttes F lprebud lnowe rin g, seed set I !germi nat ion I I ~1 7 17 l ~::~~~e d , F l l l ~s-r F F-F·~r ll I . r;-ise mi-rileaves !:flowerin g. see d F lnowe ri ng. Tamans k* p d seed set orm ancy emerge set I se mi-d ormancy l ~!~t~~a~u sk F Ill !ger min ati o n !rosett es ~,7 -rFrrF -, 1 :~i;:'::M u sk ~F Frr FF~F F llll I 1: A = annu al; B =bi enni al; C P =creepin g perenni al; P =perennial ! Shaded areas indicate best control timing. * Tamari sk con trol ca n be done any tim e of th e year, but is eas ier when leave s are absent and weathe r is coole r. (Sirota 2004 ) Figure 2 is an alternati ve schedule for life cycle and control of bienni a l thi stl es such as mu sk thi st le. Jt is a lso appropriate to co nt rol common mullein. One co lum n that s hould be added is cuttin g of ro settes, which can be done any time during grow in g. Figure 2. Life Cycle and Management strategies for biennial thistles (Hartzler2006 ) Westwat er Eng in eering Herbicide AppJlcatlon Vear 1 Page 9 of24 Htd>. Ap~I. Vtar2 5/2 7/2 008 3.6 Commercial Applicator Recommendations A certified commercial applicator is a good choice for herbicide control efforts. Regulations may require a Colorado licensed applicator. An applicator has the full range of knowledge, skills, equipment, and experience desired when dealing with tough noxious weeds. Reclamation farming services using multiple seed bin range drills and specialized related equipment is available and should be used for reclamation seeding projects. Common chemical and trade names may be used in this report. The use of trade names is for clarity by the reader. Inclusion of a trade name does not imply endorsement of that particular brand of herbicide and exclusion does not imply non-approval. Certified commercial applicators will decide which herbicide to use and at what concentration according to label directions. Landowners using unrestricted products must obey all label warnings, cautions, and application concentrations. The author of this report is not responsible for inappropriate herbicide use by readers. 3.7 Best Management Practices -Noxious Weeds The following practices should be adopted for any construction project to reduce the costs of noxious weed control. The practices include: • top soil, where present, should be segregated from deeper soils and replaced as top soil on the final grade, a process known as live topsoil handling; • wetland vegetation, if encountered, should be live handled like sod, temporarily watered if necessary, and placed over excavated sub-soil relative to the position from which the wetland sod was removed; • cut-off collars should be placed on all wetland and stream crossings to prevent back washing or draining of important aquatic resources; • in all cases, temporary disturbance should be kept to an absolute minimum; • equipment and materials handling should be done on established sites to reduce area and extent of soil compaction; • disturbances should be immediately reseeded with the recommended mix in the re- vegetation section; • topsoil stockpiles should be seeded with non-invasive sterile hybrid grasses, if stored longer than one growing season (see Table 6A, 6B). • prior to delivery to the site, equipment should be cleaned of soils remaining from previous construction sites which may be contaminated with noxious weeds; and • if working in sites with weed-seed contaminated soil, equipment should be cleaned of potentially seed-bearing soils and vegetative debris prior to moving to uncontaminated terrain. West Water Engineering Page IO of24 512712008 Table 6A. Seed Mix for Temporary Seeding of Low-Elevation Salt-Desert Scrub/Basin Big Sagebrush, Pinon-Juniper, and Mountain/Wyoming Sagebrush Common Name Scientific Names Variety Season Form PLS lbs/acre* Plant One of the Following Wheat x Tall Triticum aestivum x Elytrigia Regreen** Cool Annual 11.9 Wheatgrass elonl!ala Wheat x Cereal Rye Triticum aestivum x Secale QuickGuard** Cool Annual 30.2 cereale and the Following Stream bank Elymus lanceolatus ssp. Sod- Wheatgrass psammophilus, Agropyron Sodar Cool forming 8.9 rioarium Table 6B. Seed Mix for Temporary Seeding of Mixed Mountain Shrubland/Oakbrush and Spruce- Fir Forest/Mountain Meadow Common Name Scientific Names Variety Season Form PLS lbs/acre* Plant One of the Following Wheat x Tall Triticum aestivum x Elytrigia Regreen** Cool Annual 11.9 Wheatgrass elon£ata Wheat x Cereal Rye Triticum aestivum x Secale QuickGuard** Cool Annual 30.2 cereale and Two of the Following Mountain Brome Bromopsis [Bromus] Garnet, Cool Bunch 7.7 marginatus Bromar Thickspike Elymus lanceolatus ssp. Critana, Sod- Wheatgrass lanceolatus, Agropyron Bannock, Cool forming 4.5 dasystachyum Schwendimar Slender Wheatgrass Elymus trachycaulus, San Luis Cool Bunch 4.4 Al!ronvron trachycaulum *Based 0113 PLS per square foot for Regreen, 9 PLS per square foot for QuickGuard, and 16 PLS per square foot for native perennial grasses (streambank wheatgrass Is 32 PLS per square foot). Double the indicated amounts if broadcast or hydroseeded. **Included as examples only. Product i11formatio11 011 alternative sterile hybrids must be submitted to BLM prior to use. (United States Department of the Interior. 2008.) West Water Engineering Page 11 of24 5/27/2008 In areas with slopes greater than 3 percent imprinting of the seed bed is recommended. Imprinting can be in the form of dozer tracks or furrows perpendicular to the slope direction. When utilizing hydro-seeding followed by mulching, imprinting should be done prior to seeding unless the mulch is to be crimped into the soil surface. If broadcast seeding and harrowing, imprinting should be done as part of the harrowing. Furrowing can be done by several methods, the most simple of which is to drill seed perpendicular to the direction of slope in a prepared bed. Other simple imprinting methods include deep hand raking and harrowing, always perpendicular to the direction of slope. Herbicides: Difficult species, such as Russian knapweed, respond better to an application of a combination of two or more chemical modes of action (biological reason for plant death) rather than one (Boerboom 1999). It has also been found that use of two different groups of chemicals with the same mode of action can increase effectiveness on difficult species, e.g., phenoxys and benzoic acids or carboxylic acids and benzoic acids in a mix. Some are commercially pre- mixed, e.g., Crossbow and Super Weed-be-Gone Max, and are available over the counter. However, some of the most effective herbicides are restricted and available for use only by licensed applicators. Professionals or landowners using herbicides must use the concentration specified on the label of the container in hand. Herbicides generally do not work better at higher concentrations. Most herbicide failures observed by WWE are related to incomplete control caused by high concentrations killing top growth before the active ingredient can be transported to the roots through the nutrient translocation process. Most herbicide applications should use a surfactant if directed on the herbicide label or other adjuvants as called for on the herbicide label. Grazing: Grazing should be deferred in reclaimed areas until the desired grass species are established. Mechanical: Small isolated infestations of weed species can often be controlled with cutting and digging by hand. For dense or more extensive infestations mechanical treatments can be useful in combination with chemical control. Effectiveness of mechanical control can often be increased by severing the root just below the crown of noxious weeds. Weeds that easily resprout from rootstocks, such as Russian knapweed, may increase rather than decrease if mechanical control is the only method used. Alternative Methods: An alternative method, particularly for cheatgrass infestations and where there is poor or destroyed topsoil, is the application of vesicular-arbuscular mycorrhizal fungi typically referred to as AMF. These fungi, mostly of the genus Glomus, are symbiotic with about 80 percent of all vegetation. Endo-mycorrhizal fungi are associated mostly with grasses and forbs and could be helpful when reclaiming this project. In symbiosis, the fungi increase water and nutrient transfer capacity of the host root system by as much as several orders of magnitude (Barrow and Mccaslin 1995). Over-the-counter commercial products, which are better adapted to coating seeds when re- seeding and treating roots oflive seedling trees and shrubs at time of planting, come in powder form and are available from many different sources. Some also come in granular form to be WestWater Engineering Page 12 of24 5/27/2008 spread with seed from a broadcast spreader. The best AMF products should contain more than one species. All Colorado State Forest Salida District tree and shrub plantings include the application of AMF. According to District Forester Crystal Tischler, "AMF is worth it" (Tischler 2006). Most, if not all, Colorado Department of Transportation re-vegetation/reseeding projects now require use of AMF and BioSol, a certified by-product of the penicillin manufacturing process composed primarily of mycelium. Compacted soils respond well to fossilized humic substances and by- products called humates. These humates, including humic and fulvic acids and humin were formed from pre-historic plant and animal deposits and work especially well on compacted soils when applied as directed. Biological control of widespread infestations in the project area using natural insect agents are available for musk thistle and tamarisk. Musk thistle may be controlled by the musk seed head weevil (Rhinocyllus conicus), the thistle defoliating beetle (Cassida rubiginosa) which feeds on the foliage of Canada, musk, and plumeless thistles, and the musk and plumeless thistle rosette weevil (Trichosirocalus horridus) (Sullivan, 2004). For tamarisk, the tamarisk leaf beetle (Diorhabda elongata deserticola) may be available (Tamarisk Coalition 2007). 4.0 RE-VEGETATION -RECLAMATION 4.1 Project Area The project area includes mostly gently sloping bottom land and moderately sloping mountain toe slopes. Successful reclamation of the project area is dependent upon soil type and texture, slope gradient and aspect, proper weed control, and re-vegetation with suitable plant species. Based on the soil types, terrain, and the presence of noxious weeds in the project area, successful reclamation is most likely if a seed mix of grasses is used (Tables 7 and 8). This will allow control of noxious weeds while establishing vegetation in the disturbed areas. Two seed mixes are presented based on soil type and available moisture; one for basin big sagebrush areas and one for mountain shrub areas. Some land in the project area is used for pasture or hayfields and these need to be properly managed if continued agricultural use is planned. For best results and success, the recommended grass mixture reseeding should be done in late autumn. The reseeding rate should be doubled for broadcast application (CNHP 1998). Preferred seeding method is multiple seed bin rangeland drill with no soil preparation other than simple grading to slope and imprinting and waterbars where applicable. West Water Engineering Page 13 of24 5/27/2008 Table 7. Seed Mix for Low-Elevation Salt-Desert Scrub/Basin Big Sagebrush Common Name Scientific Names Variety Season Form PLS lbs/acre* Plant Both of the Following (5% Each, 10% Total) Fourwing Atriplex canescens VNS Shrub 2.5 Salt bush Shadscale Atriplex confertifo/ia VNS Shrub 2.0 and Two of the Following (25% Each, 50% Total) Bottle brush Elymus elymoides, Sitanion VNS Cool Bunch 3.4 Sauirreltail hvstrix Stream bank Elymus lanceolatus ssp. Sod- Wheatgrass psammophilus, Agropyron Sadar Cool forming 4.2 rivarium Bluebunch Pseudoroegneria spicata Secar Cool Bunch 4.7 Wheatgrass and One of the Following (20% Total) Indian Ricegrass Achnatherum [Oryzopsis} Paloma, Cool Bunch 3.7 hvmenoides Rimrock Sandberg Paa sandbergii, Poa VNS Cool Bunch 0.6 Bluegrass secunda and One of the Following (10% Total) Alkali Sacaton Sporobolus airoides VNS Warm Bunch 0.15 Salina Wildrye Leymus salinus VNS Cool Bunch 1.0 and One of the Following (10% Total) Galleta Pleuraphis [Hilaria} Viva florets Warm Bunch/Sod-1.6 iamesii forming Sand Dropseed Sporobo/us cryptandrus VNS Warm Bunch 0.05 *Based on 60 pure live seeds (PLS) per square foot, drill-seeded. Double this rate (120 PLS per square foot) if broadcast or hydroseeded. (United States Department of the Interior. 2008.) WestWater Engineering Page 14 of24 5/27/2008 Table 8. Seed Mix for Mountain Shrubland, Including Oakbrush Common Name Scientific Names Variety Season Form PLS lbs/acre* Plant Both of the Following (20% Each, 40% Total) Bottle brush Elymus elymoides, Sitanion VNS Cool Bunch 2.7 Squirreltail hystrix Bluebunch Pseudoroegneria spicata, Secar, P-7, Anatone, Cool Bunch 3.7 Wheatgrass Agropyron spicatum Goldar and Two of the Following (15% Each, 30% Total) Thicks pike Elymus lanceolatus ssp. Critana, Sod- Wheatgrass lanceolatus, Agropyron Bannock, Cool forming 2.5 dasvstachvum Schwendimar Slender Wheatgrass Elymus trachycaulus, San Luis Cool Bunch 2.5 Azronvron trachvcaulum Western Wheatgrass Pascopyrum [Agropyronj Arriba, Cool Sod-3.6 smithii Rosana forming and One of the Following (10% Total) Big Bluegrass Poa amp/a Sherman Cool Bunch 0.3 Canby Bluegrass Poa canby1~ P. secunda Can bar Cool Bunch 0.3 Muttongrass Poafendleriana VNS Cool Bunch 0.3 and One of the Following (10% Total) Letterman Achnatherum [Stipa] VNS Cool Bunch 1.7 Needle grass lettermanii Columbia Achnatherum [Stipa] VNS Cool Bunch 1.7 Needlegrass nelsonii, Stipa columbiana Green Needlegrass Nassella [Stipa} viridula Lodorrn, Cool Bunch 1.4 Cucharas and One of the Following (10% Total) Achnatherum [Oryzopsis} Nezpar, Indian Ricegrass hymenoides Paloma, Cool Bunch 1.9 Rimrock Koeleria macrantha, K. VNS (North Junegrass cristata American Cool Bunch 0.1 origin) *Based on 60 pure live seeds (PLS) per square foot, drill-seeded. Double this rate (120 PLS per square foot) if broadcast or ilydroseeded. (United States Department of the Interior. 2008.) · West Water Engineering Page 15 of24 5/27/2008 Alternative seeding methods include, but are not limited to: • harrow with just enough soil moisture to create a rough surface, broadcast seed and re-harrow, preferably at a 90 degree angle to the first harrow; • hydro-seeding (most economical in terms of seed cost); and • hand raking and broadcast followed by re-raking at a 90 degree angle to the first raking. • These are not the only means of replanting the site. However, these methods have been observed to be effective in similar landscapes. After desired grasses are established and control of target weed species is successful, then shrubs, forbs and trees can be planted without concern for herbicide damage. Few native forb seeds are available commercially as cultivars. Most are collected from natural populations. Native shrubs and forbs often do not establish well from seed, particularly when mixed with grasses. Past experience has shown that stabilizing the soil with grasses, accomplishing weed control, and then coming back to plant live, containerized woody species in copses has been the most cost effective method for establishing the woody species component of the plant community. For sites where soil disturbance will be short term grasses should be drilled after construction activities cease and the equipment removed from the site. After two years of controlling weeds (with herbicides) and allowing the grasses to become established, forbs and woody species should be inter-seeded or hand-planted to increase the diversity and value of the reclamation plantings. West Water Engineering Page 16 of24 512712008 5.0 REFERENCES Barrow, J. R., and Bobby D. McCaslin. 1995. Role of microbes in resource management in arid ecosystems. In: Barrow, J. R., E. D. McArthur, R. E. Sosebee, and Tausch, R. J., comps. 1996. Proceedings: shrubland ecosystem dynamics in a changing environment. General Technical Report, INT-GTR-338, Ogden, Utah: U.S. Department of Agriculture, U.S. Forest Service, Intermountain Resource Station, 275 pp. Boerboom, C. 1999. Herbicide mode of action reference. Weed Science, University of Wisconsin, 5 pp. Chevron North America, 2008. Site Development Map -"Piceance Basin Natural Gas Development Program", March 31, 2008. CNHP. 1998. Native Plant Re-vegetation Guide for Colorado. Colorado Natural Heritage Program, Caring for the Land Series, Vol. Ill, State of Colorado, Division of Parks and Outdoor Recreation, Department of Natural Resources, Denver, 258 pp. CWMA. 2007. S. Anthony, T. D' Amato, A. Doran, S. Elzinga, J. Powell, I. Schonle, K. Uhing. Noxious Weeds of Colorado, Ninth Edition. Colorado Weed Management Association, Centennial. Garfield County Vegetation Management and Garfield County Weed Advisory Board. Garfield County Noxious Weed Management Plan. Resolution #2002-94, October 21, 2002. Hartzler, Bob. 2006. Biennial Thistles oflowa. !SU Extension Agronomy. URL: http://www.weeds.iastate.edu/mgmt/2006/iowathistles.shtml Kershaw, L., A. MacKinnon, and J. Pojar. 1998. Plants of the Rocky Mountains. Lone Pine Publishing, Auburn, Washington. NRCS. 2008. Web Soil Survey, U.S. Department of Agriculture, Natural Resource Conservation Service, URL: http://websoilsurvey.nrcs.usda.gov Sirota, J. 2004. Best management practices for noxious weeds of Mesa County. Colorado State University Cooperative Extension Tri River Area, Grand Junction, Colorado. URL: http://www.coopext.colostate.edu/TRA/Weeds/weedmgmt.html State of Colorado. 2005. Rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act, 35-5-1-119, C.R.S. 2003. Department of Agriculture, Plant Industry Division, Denver, 78 pp. Westwater Engineering Page 17 of24 5/27/2008 Sullivan, Preston, G. 2004. Thistle control alternatives. Appropriate Technology Transfer for Rural Areas, National Sustainable Agriculture Information Service, Fayetteville, AR, 9 pp. Tamarisk Coalition. 2007. Grand Junction, CO. URL: http://www.tamariskcoalition.org/tamariskcoalition/index.php Tischler, Crystal. 2006. District Forester, Colorado State Forest Service, Salida, Colorado. Personal communication with Bill Clark, WestWater Engineering, Grand Junction, Colorado. United States Department of the Interior. Bureau of Land Management. Glenwood Springs Energy Office. May 2008. Written communication, "Revisions to BLM Energy Office Revegetation Requirements." Weber, William A. and Ronald C. Wittmann. 2001. Colorado Flora, Western Slope. Third Edition, University Press of Colorado, Boulder Colorado. 2001 WestWater Engineering, April 2008. "Chevron Clear Creek-Tom Creek Integrated Weed Management Plan, Garfield County, Colorado." Whitson, T. D. (editor), L. C. Burrill, S. A. Dewey, D. W. Cudney, B. E. Nelson, R. D. Lee, and R. Parker. 2001. Weeds of the West -9th edition. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming, Laramie WestWater Engineering Page 18of24 5/27/2008 APPENDIX A. Garfield County Noxious Weed List Species Common name Species Growth Life State "A" State "B" State Garfield Code Form1 History2 List List "C" List List Acroptilon rep ens Russian knapweed ACRE3 F p x x Aegilops cylindrica Joi nted goatgrass AEC Y G A x x Arctium minus Common (lesser) bu rdock ARM l2 F B x x Cardaria draba Hoary cress , Whitetop CADR F p x x Carduus acanthoides Spiny p lumeless thist le CAAC F B,WA x x Carduus nutans Musk (Nodding plumeless) thistle CANU4 F B x x Centaurea diffusa Diffuse knapweed CEDl3 F p x x Centaurea maculosa Spotted knapweed CEMA4 F p x x Centaurea solstitialis Yellow starthistle CES03 F A x x Chrysanthemum Oxeye daisy CHLE80 F p x x leuca nthemum Cichorium intybus C hicory CllN F p x x Cirsium arvense Canada thistle CIAR4 F p x x Cynoglossum officinale Houndstongue, Gypsyflower CYOF F B x x Elaeagnus angustifolia Russian olive ELAN T p x x Euph orbia esula Leafy spurge EUES F p x x Linaria dalmatica Dalmatian toadflax, broad-leaved LIDA F p x x Linaria vulgaris Yellow toadflax LIVU2 F p x x Lythrum salicaria Purple loosestrife LYSA2 F p x x Onopordum acanthium Scotch thistle ONAC F B x x Ta marix parviflora Smallflower tamari sk TAPA4 T p x x Tamarix ramosissima Salt cedar, Tamarisk TARA T p x x 1 -Growth form: T = tree/shrub; F = forb /vi ne ; G = gram inoi d 2 -Li fe hi story: A= annua l; B =biennial ; P = perennial; WA =winter a nnual WestWater Engineerin g Page 19 of24 5/27/2008 Weed Common Burdock Common Mullein Houndstongue APPENDIX B. Noxious Weed Location UTM's (Garfield County listed weeds in bold) UTMEasting UTM Comments Northing IZS 07303Z6 437883Z With houndstongue IZS 07296Zl 4379843 80ft circle, with houndstongue !ZS 0729168 438118Z With tamarisk !ZS 0727913 438319Z Few !ZS 0729Z40 4380914 ZOO+ plants !ZS 07298Z9 4379601 Z50 olants in 75ft x I OOft oatch !ZS 0730068 4378988 Light density along a ditch !ZS 0727913 4383192 In a New Mexico locust thicket !ZS 0729250 4381085 Moderate !ZS 0729360 4380870 15ft. diameter patch !ZS 0729665 4380550 Hundreds in a 30ft x I OOft oatch !ZS 0729680 4380145 30ft diameter oatch !ZS 0729595 4380000 Dense in 300ft. circle lZS 0729800 4379650 Dense at junction Clear Ck.&Deer Pk.Gulch 12S 0729030 4381542 Start row along creek. Moderate densitv !ZS 0728948 4381734 End row !ZS 0729434 43812Z5 6 plants !ZS 0729881 4380Z98 Moderate density. 30ft. circle !ZS 0729Z89 4380727 Thinlv scattered on alluvial fan !ZS 0729519 43806Zl Dense in 50ft. circle !ZS 0728991 4381495 Moderately dense on old road !ZS 0728991 4381840 Moderate !ZS 0728393 438Z710 Start, moderate density in ?Oft wide row lZS 0728Z98 438Z833 End row 12S 0729399 4381261 Few !ZS 0729375 4381184 Dense 12S 0729447 4381186 Dense, in Buck Gulch !ZS 0729378 4380707 Light density in IOOft. circle !ZS 0729605 4379679 Light !ZS 0729665 4379796 Dense 12S 0729734 4380645 In shade near irri1rntion ditch 12S 0728787 438Z050 On disturbed soil along old road 12S 0729541 43814ZO Start, 80 ft. wide; dense in oakbrush !ZS 0729589 4381433 End; also in other nearby oakbrush patches Common in varying densities all along Houndstongue I Common Mullein I Musk Thistle drainages in the survey area. Thinly scattered throughout brushy areas. Westwater Engineering Page ZO ofZ4 5/27/2008 Weed Musk Thistle Russian Knaoweed Tamarisk West Water Engineering APPENDIX B. Noxious Weed Location UTM's (Garfield County listed weeds in bold) UTM UTM Comments Eastin!! North in!! 12S 0729408 4381195 50 plants 12S 0729383 4381226 6 plants 12S 0729942 4380279 Light density in I OOft. circle 12S 0729510 4380064 30 plants in a 60ft. circle 12S 0729620 4380340 Dense in 60ft x 200ft oatch 12S 0728980 4382086 In sagebrush 12S 0728845 4382257 In sagebrush 12S 0729026 4381924 Start row, 100+ plants 12S 0729010 4381840 End row 12S 0730241 4380217 Russian knapweed polygon in Deer Park 12S 0730267 4380164 12S 0730277 4380155 Gulch, just beyond current survey boundary. 12S 0730353 4380241 Many hundreds of plants. 12S 0730367 4380276 12S 0730354 4380312 12S 0730286 4380289 12S 0730245 4380292 Close oolvaon 12S 0729402 4381462 2 plants on hill above Buck Gulch 12S 0729417 4381409 I plant on hill above Buck Gulch 12S 0729678 4379836 I 00 plants, 250ft upstream and downstream 12S 0729168 4381182 30 plants 12S 0729419 4380790 4 plants by a soring 12S 0729330 4380855 Tamarisk I 50ft. along creek bank 12S 0729450 4380760 Extends 60ft. along east bank 12S 0729550 4380615 Extends 120ft. along east bank 12S 0729570 4380200 Thick 12S 0729550 4380110 Along creek for 200ft. 12S 0728423 4382623 I plant 12S 0728476 4382480 2 plants 12S 0728994 4381900 4 plants 12S 0729534 4381510 Start row at seep above Buck Gulch 12S 0729464 4381481 End row, I 00 ft. wide 12S 0729173 4381335 Start, many olants along Clear Creek 12S 0728393 4382710 End row 12S 0727861 4383252 Start, manv plants along Clear Creek 12S 0727783 4383336 Cont. north of survev boundarv Page 21 of24 5/27/2008 APPENDIX C. Additional Photos Photo 2. Weeds are commonly found within 100 feet of Clear Creek. Photo 3. Common mullein, musk thistle, and houndstongue rosettes. Westwa ter Engin ee rin g Page 22 of24 5/27/2008 APPENDIX C. Additional Photos Photo 4. Common mullein in sagebrush. Photo 5. Hounds ton g ue infes tation in foreground . WestWater Engineerin g Page 23of24 5/27/2008 APPENDIXC. Additional Photos Photo 6. Ru ssian knapweed infe station in Deer Park Gulch . Photo 7. These tamarisk were cut and treated nea r an existing pipeline crossing over C lear C reek. No re sprouting wa s evident. WestWa ter E ng ineering Page 24 of24 5/27/2008 APPENDIXK WILDLIFE ASSESSMENT AND MITIGATION Clear Creek Biological Survey Photo 1. Mt. Blaine marks the south end of Skinner Ridge on the west side of Clear Creek Prepared for: Chevron/Texaco USA Prepared by: Westwater Engineering 2570 Foresight Circle #1 Grand Junction, CO 81501 In Coordination with: Cordilleran Compliance Services, Inc. May 2007 1.0 Introduction Clear Creek Biological Survey May 2007 Chevro n requested that WestWater Engineering (WWE) conduct a bi o logical survey as ear ly as possible in Spring 2007 to document the locat ion of raptor nests, the pre sence of Threatened , Enda ngered and Sensitive Plant Species (TESS); the extent of weed infestations; the pre se nce and loca tion of Birds of Conservat ion Concern (BOCC) ot her than rapt ors ; the location of waterways under the jurisdiction of the U. S. Army Corps of Engineers (COE); and the genera l condition of the aq uatic habitat in Clear Creek a nd its tributaries. 1.1 Project Scope and Location Clea r Creek is located in Garfie ld County, Co lorado . It is one of the major tributaries of Roan Creek. The mouth of the canyon is lo cated approximate ly 12 miles north of the town of DeBeque. C lear Creek and its tributaries drain approximately 113 square miles of the Roan Plateau. Elev at ions range from 5,485 ft at th e mouth of th e canyon to 8,01 1 ft at the top of Mount Blaine (see Photo I). This biological survey was restricted to the portion of Chevron properties located under the rim of Clea r Creek (see Ph oto 2 and Figure I ). This are a is refe rred to as the C lear Creek drainage or "the canyon" in the following sect ion s of the report. Although Chevron is actively developing the natural gas resources in Deer Park Gulch, that drainage is owned by Shell and WWE biologists did not receive permission to survey th e Shell private surface. The same restriction app li ed to Doe Gulch , Scott Gu lch and approximately I Yi miles of lower Clea r Creek. Photo 2. This biological survey was limited to Chevron property unde r the rim of Clear Creek WestWater Engineering Page I of 24 pages 5/2 1/2007 Figure 1: Chevron Clear Creek Overall Map Biological Survey Westwater Engineering Miles (Scale: 1 :100,000) 0 0 .5 1 2 Legend c:I Survey Area [=1 SLM 1.2 Landscape Setting During the survey, Clear Creek was flowing the entire length of the stream due to spring run-off. As runoff ceases, flows diminish and the stream flows intermittently, disappearing underground at several locations. The vegetation adjacent to the stream consists of a few riparian deciduous shrubs and a woodland over story comprised of mountain boxelder (Acer negundo), introduced and naturalized New Mexico locust (Robinia neomexicana), a few remnant of Fremont cottonwoods (Populus fremontil) in lower Clear Creek, and narrowleaf cottonwoods (Populus angustifolia) above the confluence of Cottonwood Creek. In some areas the New Mexico locust has crowded out most native shrubs normally found in this riparian zone such as skunkbush sumac (Rhus trilobata), wild rose (Rosa woodsil), chokecherry (Prunus virginiana), and willow (Salix spp.) Woody vegetation on the upland slopes consists of basin big sagebrush (Artemesia tridentata tridentate ), gambels oak (Quercus gambel), rabbitbrush ( Chrysothanmnus spp. ), snowberry (Symphoricarpus occidentalis), serviceberry (Amelanchier alnifolia), skunkbush sumac, currant (Ribes spp.), Oregon grape (Berberis repens), and clematis (Clematis spp.). The understory is primarily cheatgrass (Bromus tectorum) and a mix of annual, biennial and perennial weeds. Few native grasses and forbs are present. Potential natural vegetation for meadows includes basin big sagebrush, western wheatgrass (Pascopyrum smithil), and basin wildrye (Leymus cinereus). For moderate, loamy slopes, needle and thread (Hesperostipa comata comata), bluebunch wheatgrass (Pseudoroegneria spicatum spicatum), Indian ricegrass (Achnatherum hymenoides), western wheatgrass, Wyoming big sagebrush (A. t. wyomingensis), and winterfat, (Krascheninnikovia lanata) is expected. Similar vegetation on the steeper but still moderate, brushy slopes is expected with the addition of bottlebrush squirreltail (Sitanion hystrix) and shadscale saltbush (Atriplex confertifolia). 2.0 Birds of Conservation Concern 2.1 Background Information As part of the protection and management of avian species, the Fish and Wildlife Service (FWS) in 2002 published a list of BOCC (FWS 2002). In a Memorandum of Understanding (MOU), the Bureau of Land Management (BLM), FWS and Forest Service (FS) placed the highest priority for conservation on birds included on the BOCC list. A subset of this list includes a register of BOCC for the Southern Rockies and the Colorado Plateau, including Western Colorado. Not all of these BOCC species occur regularly in Colorado and some are present only as seasonal migrants. After a thorough review of the literature (Andrews and Righter 1992, Kingery 1998), WWE biologists compiled a list of the BOCC species likely to nest in the Clear Creek/Roan Plateau area. Habitat and nesting records for BOCC, as described in the Colorado Breeding Bird Atlas (Kingery 1998, and references therein) and Colorado Birds (Andrews and Righter 1992), in the vicinity of Clear Creek are summarized below. Bird identification and taxonomic nomenclature are in accordance with that applied by the Colorado Breeding Bird Atlas Project (Kingery 1998). 2.2 Raptors The BLM, in its approved White River Resource Area Resource Management Plan (1997), places special emphasis on conservation of all raptors, including species indigenous to the Roan Plateau but not on the BOCC list. The BLM objectives for raptors state: "Maintain the short- term utility and promote the continued long-term development and availability of suitable raptor WestWater Engineering Page 3 of 24 pages 5/21/2007 habitats. This includes prey base, nest sites and other special habitat features necessary to help stabilize or allow increases in regional raptor populations." Table 1 includes the common name, scientific name, BOCC status, habitat requirements and breeding status for raptors that could be observed in the Clear Creek drainage. Table 1. Raptor species potentially present in the Clear Creek drainage Common BOCC Name Scientific Name Listed Habitat & Breeding Records ? • Riparian corridors along major river drainages in Western Colorado. Nests in mature cottonwood trees, most commonly within 100 yards of open Haliaeetus water. Bald Eagle leucocepha/us y • Uncommon Nester: Approximately 5 known nests found along the Colorado River from Rifle, CO downstream to the Utah state line. • Common Winter: migrant along the Colorado River corridor, Roan Creek and Parachute Creek. •Grassland, shrubland, agricultural areas, and marshes. Nests in areas with abundant cover (e.g., tall reeds, cattails, grasses) in grasslands and Northern Harrier Circus cyaneus y marshes. Also known to nest in high-elevation sagebrush. • Uncommon: Found by WWE to be a nester near the Divide Road in the Stewart and Story Gulch area in Rio Blanco and Garfield Counties, 2006. •Cottonwood riparian to spruce/fir forests, including piiion/juniper woodlands. Nests most frequently in Cooper's Hawk Accipiter cooperii N pines and aspen. • Common: Confirmed breeder in Rio Blanco and Garfield Counties and recentlv alona Clear Creek. • High density young, or even-aged, stands of Sharp-shinned coniferous forest and deciduous forests of aspen Accipiter striatus N or oak brush with small stands of conifers. Hawk • Uncommon: Confirmed breeder in Rio Blanco and Garfield Counties. •Typically in high elevation coniferous or aspen Northern Accipiter gentiles N forest. Can occur in Pinon-juniper habitat. Goshawk • Rare: Confirmed breeder in Rio Blanco and Garfield Counties. • Diverse habitats including grasslands, piiion- juniper woodlands and deciduous, coniferous and Red-tailed Buteo riparian forests. Nests in mature trees (especially N cottonwood, aspen, and pines) and on cliffs and Hawk jamaicensis utility poles. • Common: Confirmed breeder throughout the Roan Plateau area. •Typically, arid grassland, desert, agricultural areas, Swainson's shrublands and riparian forests. Nests in trees in or Hawk Buteo swainsoni y near open areas. • Uncommon: Confirmed breeding in oak brush by WWE bioloQists on Roan Plateau, 2005. WestWater Engineering Page 4 of 24 pages 5/21/2007 Table 1. Raptor species potentially present in the Clear Creek drainage Common BOCC Name Scientific Name Listed Habitat & Breeding Records ? • Ungrazed to lightly grazed grassland and shrubland with varied topography. Nests in isolated Ferruginous trees, rock outcrops, structures such as windmills Buteo regal1s y and power poles, or on the ground (especially on Hawk hill tops). • Uncommon: Nesting has been recorded in western Rio Blanco and Garfield Counties. • Grasslands, shrublands, agricultural areas, piiion- juniper woodlands, and ponderosa forests. Prefers Golden Eagle Aquila chrysaetos y nest sites on cliffs and sometimes in trees in rugged areas. •Common: Confirmed breeder in Rio Blanco and Garfield Counties. • Coniferous and deciduous forests and open terrain American with suitable perches. Nests in cavities in trees, Kestrel Falco sparverius N cliffs and buildings. • Common: Confirmed breeder in Rio Blanco and Garfield Counties. • Pinon-juniper woodlands and coniferous and riparian forest near cliffs. Nests on ledges of high Peregrine Falco peregrinus y cliffs away from human disturbance. Falcon • Rare: Nesting confirmed in Parachute Creek and the Bookcliffs north of Interstate Highway 70 in Garfield County. •Grasslands, shrublands, and alpine tundra. Nests Prairie Falcon Falco mexicanus y on cliffs or bluffs in open areas. • Rare: Confirmed breeder in Rio Blanco and Garfield Counties. • Dry, montane ponderosa pine, Douglas-fir, and aspen dominated forests. Also known to nest in Flammulated old-growth piiion-juniper. Nests in cavities in trees. Owl Otus flammeolus y • Rare: Confirmed presence and likely breeder in Garfield County, documented in aspen east of Clear Creek Canyon by WWE biologists during 2006. • Occupies diverse habitats including riparian, Great Horned deciduous and coniferous forests with adjacent Owl Bubo virginianus N open terrain for hunting. • Common: Confirmed breeder in Rio Blanco and Garfield counties. • Mountain and foothills forest and canyon country. Northern Saw-Aego/ius Significant use of piiion-juniper woodland and whet Owl acadicus N Douglas-fir. • Uncommon: Confirmed breeder in Garfield and Rio Blanco Counties. WestWater Engineering Page 5 of 24 pages 5/21/2007 Table 1. Raptor species potentially present in the Clear Creek drainage Common BOCC Name Scientific Name Listed Habitat & Breeding Records ? •Occupies mixed shrublands. Nests and roost in sites in dense cottonwoods, willows, scrub oak, junipers and dense forest of mixed conifers and Long-eared Owl Asio otus N aspens. • Uncommon: Confirmed breeder in Rio Blanco County and in Garfield County along Parachute Creek in 2006. 2.3 Procedures for raptor surveys WWE biologists conducted surveys for raptors in Clear Creek from March 29 through April 30, 2007. The search was focused to locate active raptor nests; however, all raptor sightings and nest locations (including inactive nests) were recorded. Based on a reconnaissance of the entire drainage on March 29, the area was divided into 33 "search areas" to facilitate surveys of the extensive cliff habitat. Biologists worked in two-man teams and spent an average of four hours per session systematically searching the cliff faces for nests and bird activity following protocol described by Craig and Enderson (2004). Each biologist used binoculars and a spotting scope equipped with a zoom ocular lens (usually 20-60 power variable) which permitted close-in views of potential nest sites. When possible, two to three teams worked together covering up to two miles of the canyon to better track eagles, falcons and buteos and determine what ledges or caves were being actively used by the birds. Cliff searches were most productive in the morning hours; in the afternoons, WWE biologists walked the riparian corridors or pinon-juniper (PJ)-covered hillsides searching for nests of other raptor species. In addition to these visual searching techniques, the biologists used the recorded call play-back methodology described by P. Kennedy (Kennedy and Stahlecker 1993; the "Kennedy- Stahlecker-Rinker" method) as modified by R. Reynolds and others (1992) for the southwestern United States. WWE biologists used "Predation MP3 Game Caller" units and played the call of a Great Horned Owl or a Cooper's Hawk alarm call in an attempt to locate raptors who often respond to the presence and calls of other raptors. In an attempt to determine which owl species are present in Clear Creek canyon, an owl survey was conducted during the evenings of April 25 and 26, 2007. Two teams started at opposite ends of the canyon, one at the mouth and the other at the confluence of Willow Creek and No Name Creek. Using the "Predation MP3 Game Caller" units, the owl calls were played for 30 seconds and biologists listened for response for 2 minutes for each species of owl; each team played the calls of two owl species before driving one half mile along the main road to the next station. The team moving down-canyon played the Northern Pygmy Owl and Long-eared Owl calls, while the team traveling up-canyon played the Flammulated Owl and Northern Saw-whet Owl calls. A total often minutes were required to play calls, listen for response, and move to the next station. Each team played their owl calls at 32 stations, covering the main canyon and Tom Canyon. All locations of birds, nests and owl response were recorded using handheld GPS units and locations are reported as UTM coordinates (Datum: WGS84, Zone: 12S). WestWater Engineering Page 6 of 24 pages 5/21/2007 2.4 Raptor Observations WWE biologists observed an abundance of raptors in Clear Creek in April, 2007. Numerou s individual s of ten species were recorded and biologists determined that eight species were nesting in the canyon . Golden Eagles were well established in C lear Creek in late March and were observed the entire len gth of the canyon. Eag le cliff nesting sites were located from the face of Mt. Blaine to the upper end of Willow Creek. Red-tailed Hawks were observed on numerous occasions throughout the entire drainage. Northern Harriers were observed from late March , primarily hunting a long the canyon floor , but no nesting sites were recorded. Sharp-shinned Hawk s were observed on several occasions, but no nesting sites were discovered. American Kestrels were observed all month throughout the drainage. Peregrine Falcons appeared about mid-April and established nesting territories in Tom Canyon and upper Clear Creek. Likewise, Cooper's Hawks appeared abou t mid-April, and through the rest of the month these birds were establ ishing nesting territories. Like Red-tailed Hawks and Golden Eagles, Cooper's Hawks were fo und throughout the entire drainage. WWE biologists a lso expected to find Prairie Fa lcons , but none were observed in Clear Creek. Great-horned Owls were observed both in the PJ habitat under Mt. Blaine and in the riparian habitat (night surveys) along the creek(s). Flammulated and Northern Saw-whet Owls response locations were recorded during night ow l surveys in the riparian habitats. Photos 3 and 4 portray a No1thern Saw-whet Owl and a Flammulated Owl that responded to calls during the owl survey. Photos 3 and 4. Northern Saw-whet Owls (L) and Flammulated Owls (R) responded to the calls Figure 2 shows the locations of active and inactive raptor nests as well as the locations of owl responses during the ow l survey. Details are provided below for each active raptor nest that was discovered; the following abbreviations are used: Golden Eagle-GOEA; Peregrine Fa lc on -PEFA; American Kestrel - AMKE; Cooper's Hawk -COHA; Red-tailed Hawk -RTHA; Great-horned Owl -GHOW; Flammul ated Owl -FLOW; Northern Saw-whet Owl -NSWO. Westwater Engineering Page 7 of24 pages 5/21 /2007 GOEA-1(730370mE4382000mN): Nest with fresh pine boughs in cliff"pothole" in Weiss Creek. Watched adult Goldens bring prey items to nest and incubation switch. Also saw incubation switch on April 14. GOEA-2 (72171 OmE 4390275mN): Stick nest about one third way up cliff in No Name Creek. Visited by adult pair of Goldens, sticks taken to nest, but birds will not breed this year. PEF A-1 (728840mE 4385965mN): Adult pair of Peregrine Falcons present in Potts Creek, but no nest ledge selected as of 26 April, 2007. Coordinates mark center of activity. PEFA-2 (720045mE 4388635mN): Adult pair of Peregrine Falcons near the falls in Clear Creek One copulation observed; no nest ledge selected as of25 April 2007. Coordinates mark the center of activity. AMKE-1 (728080mE 4383660mN): WWE biologist witnessed adult pair breeding in a cottonwood snag near the mouth of Tom Canyon. COHA-1 (726345mE 4384715mN): Stick nest with fresh nesting material 30 ft high in a 35 ft Box Elder tree on main Clear Creek above Tom Canyon; pair of Cooper's Hawks defended the nest. COHA-2 (725200mE 438641 OmN): Stick nest with fresh fir bough in a box elder 25 ft above the ground in the riparian zone in Sheep Creek. Cooper's Hawk defended the nest site. COHA-3 (728220mE 4385615mN): Good stick nest 30 ft up in 40 ft boxelder. Adult COHA seen in the area two days; once perched on the edge of the nest. RTHA-1 (728075mE 4387030mN): Stick nest about 80 ft up on 160 ft cliff in Tom Creek. Adult Red-tail Hawk defended the nest against a GOEA. In addition to the active nests described above, there were several areas in which raptors were observed and nesting is likely to occur. For example, there were many sightings of GOEA in "Rattlesnake Basin" the southernmost basin on the east side of Clear Creek. On multiple occasions, WWE biologists observed Golden Eagles visiting stick nests on a large cliff with multiple nests, but the birds did not stay at any one nest long enough to prove it to be active. In a similar manner, GOEA were observed on several occasions in Tom Canyon, especially near the confluence of Tom and Clear Creeks. On one occasion, the birds landed on a large stick nest on the west side of Clear Creek, but it proved not to be an active nest. Many inactive GOEA nests are located in the upper portion of Clear Creek and also in Willow Creek. The large cliffs provide a wide variety of sites suitable for nesting; WWE biologists termed the small caves "potholes"; many were large enough to hold the large stick nests built by GOEA. Although only one active Kestrel nest is shown on the map, many adult Kestrels were observed along Clear Creek. These small raptors nest in holes in large cottonwoods or box-elders in the riparian zone; their nests are easily missed during surveys. Sharp-shinned Hawks (SSHA) were WestWater Engineering Page 8 of 24 pages 5/21/2007 observed on several occasions. Although no SSHA nests were discovered, they are likely nesters in Douglas Fir habitat on northeastern exposures in the upper canyon(s). 2.5 Birds of Conservation Concern CBOCC) other than raptors Table 2 provides the common name, scientific name, habitat requirements and breeding status of birds on the BOCC list that could be found under the rims of the Clear Creek drainage. Table 2. BOCC species (other than raptors) that may nest in the Clear Creek area Common Name Scientific Name Habitat & Breeding Records • Nest cup of moss and mud on a cliff behind or near a Cypseloides waterfall. Arrive late; chicks fledge 45-49 days after hatching. Black Swift niger • Uncommon; breeding colony in eastern Garfield County. Waterfalls in Clear, Willow and Cottonwood Creeks are ootential habitat. Lewis's Melanerpes • Riparian habitats, nests in old decadent cottonwoods •Uncommon; individual bird observed by WWE biologist in Woodpecker lewis Mav, 2005 on Clear Creek above Buck Gulch (in Sect. 4) •Mixed coniferous/deciduous forest at higher elevations, 2,300- Williamson's Sphyrapicus 3,260 m (7,000-10,700 ft). Nests in cavities in trees, commonly in aspens or pines. Sapsucker thyroids •Uncommon: Confirmed breeder in Rio Blanco County including on the Roan Plateau. •Open and drier pifion-juniper woodlands on rocky slopes at the lower elevation range of P-J habitats. Nests in junipers, Gray Vireo Vireo vicinior especially those with protruding snags. •Uncommon: Confirmed breeder in extreme western Rio Blanco Countv. Gymnorhinus •Pinon-juniper woodlands. Nests in pifions or junipers. Pinyon Jay cyanocephalus •Common: Confirmed breeder in Rio Blanco and Garfield Counties, including on the Roan Plateau. •Dense shrublands and scrub forests of Gambel oak, pifion- Virginia's Vermivora juniper, mountain mahogany or ponderosa pine. Nests on the ground among dead leaves or with rock or log overhangs. Warbler virginiae •Common: Nesting has been confirmed in Rio Blanco and Garfield Counties including on the Roan Plateau. •Mature pifion-juniper woodlands. Nests on horizontal Black-throated Dendroica branches in pifion or juniper. Gray Warbler nigrescens •Common: Nesting has been confirmed in Rio Blanco and Garfield Counties including on the Roan Plateau. • Large contiguous areas oflow-elevation big sagebrush or Sage Sparrow Amphispiza be/Ii sagebrush/greasewood shrublands. Nests in sagebrush. • Uncommon: Breeding has been not been confirmed in Rio Blanco or Garfield Counties. 2.6 Procedures While no specific routes or techniques were used to survey for BOCC species, WWE biologists were ever vigilant for these species while watching cliffs and walking riparian areas and conducting other surveys. All songbirds observed were identified, either by visual reference or song, or by both methods. WestWater Engineering Page 9 of 24 pages 5/21/2007 All locations of birds were recorded using handheld GPS units and locations are reported as UTM coordinates (Datum: WGS84, Zone: 12S). 2.7 Observations The survey was conducted very early in the year; many neo-tropical migrants (songbirds) were just arriving at the end of April when the field work was terminated. Biologists noted a marked increase in the number of songbirds at the end of April. Four of the BOCC species listed above were observed by WWE biologists. Pinyonjays were recorded in mid-April and then again at the end of the month in PJ habitat in lower Clear Creek. Virginia's Warblers were seen on two dates at the end of April in lower Willow Creek and in the main canyon on the west side of Clear Creek at the mouth of Buck Gulch. A Black-throated Gray Warbler was observed on April 30 at the mouth of Tom Canyon. Although no Lewis's Woodpeckers were seen during this survey, WWE biologists are confident they are present in the Clear Creek area based on an observation by a WWE biologist during a previous survey. No nests of BOCC species were discovered. 3.0 Threatened, Endangered and Sensitive plant Species (TESS) 3.1 Background Information The occurrence and distribution of TESS are strongly influenced by geologic formations and the resulting soil types present in an area. Individual plant populations are scattered and usually only comprised of a small number of individual plants. This is primarily a result of specific soil and moisture requirements of each species and the high variability in the distribution and surface exposure of the layers within the formation. In the valley bottom and adjacent foothills in the lower portion of Clear Creek, three TESS plants could be found in the Wasatch Formation, particularly the Atwell and Shire members of the formation. DeBeque phacelia and adobe thistle require heavy clay soils subject to high levels of swelling and shrinkage. DeBeque milkvetch is often found on silt-clay soils which become hard- baked during the summer months. These three plants appear to be salt tolerant and may be associated with high selenium levels. The Atwell Gulch member of the Wasatch formation, which is comprised ofreddish, heavy clay soils, is found in the mouth of Clear Creek, below Mt. Blaine on the west and Chimney Rock on the east. Plants associated with shale of the Green Rive Formation will likely occur at higher elevations on the ridges and steep slopes. Plants likely to occur on Green River shale include the Roan Cliffs blazingstar, sun-loving meadowrue and Parachute penstemon. Piceance bladderpod also prefers soils of the Green River Formation, but can be found on more gentle slopes and in areas with shale outcrops. Three species, Naturita milkvetch, hanging garden sullivantia, and Uinta Basin hookless cactus, are less influenced by specific geological formations. Naturita milkvetch appears to be more associated with sandstone outcrops and sandy/gravelly flow patterns below the sandstone layers. Suitable habitat is often found on soils derived from the Wasatch Formation, but may also be found on the soils of the Green River Formation. This plant has a greater range, occurring into southwestern Colorado, Utah and New Mexico. Distribution is limited to sandstone ledges and canyons. West Water Engineering Page I 0 of 24 pages 5/21/2007 Hanging garden sullivantia is restricted to hanging gardens which grow beneath waterfalls and on cliffs below seeps. Potential habitat in the Clear Creek drainage is at the heads of the steeper drainages and on cliffs with a permanent water source. Uinta Basin hookless cactus is found in areas with deep soils, and within diverse vegetation associations. It is not specific to soils derived from the Wasatch or Green River Formation. The potential habitat in Clear Creek is restricted to areas under 6,000 ft in elevation, which is the upper limit of its distribution (Spackman et. al. 1997). WWE biologists consulted the Colorado Rare Plant Field Guide (Spackman et al. 1997) to determine which species could possibly be present in Clear Creek. This reference, along with several years experience in field surveys for rare plant species, enabled WWE biologists to develop the list of plants contained in Tables 3 and 4 below. Table 3. Federally-listed Threatened, Endangered and Candidate Plant Species Scientific Name Penstemon debilis Common Name Parachute penstemon Phacelia De Beque submutica phacelia Sclerocactus glaucus Uinta basin hookless cactus Status* c c T Habitat Preference/Occurrence • Endemic to Garfield County with only five known occurrences; sparsely vegetated, south facing, steep, white/pale orange shale talus in the Mahogany Zone of the Parachute Creek Member of the Green River Formation. Elev. 7,800-9,000 ft. • Found in the Anvil Points and Mt. Callahan area in the Bookcliffs overlooking 1-70, east and west of the town of Parachute Colorado. • Chocolate-brown or gray clay on Atwell Gulch and Shire members of the Wasatch Formation; sparsely vegetated steep slopes. Elev. 4, 700-6,200 ft. • Closest known population is northeast of DeBeque, Colorado. • Typically xeric and fine textured Quaternary and Tertiary alluvium soils overlain with cobbles and pebbles; cold desert shrub and pifion-juniper communities along river benches, valley slopes and rolling hills. • Known populations occur within approximately 3 miles of DeBeque, Colorado. No known populations in the Clear Creek drainage. * E= Federal Endangered, T= Federal Threatened, C:=: Federal Candidate WestWater Engineering Page 11 of 24 pages 512112007 Scientific Name As/raga/us debequaeus Astraga/us naturitensis Cirsium perplexans Table 4. BLM Sensitive Plant Species Common Name Debeque milkvetch Naturita milkvetch Habitat Preference/Occurrence • Varicolored, fine textured, seleniferous, saline soils of the Wasatch Formation-Atwell Gulch member. Elev. 5, 100-6,400 ft. • Populations occur in Horsethief Canyon, southwest of DeBeque, Colorado. No known populations in the Clear Creek area. • Sandstone mesas, ledges, crevices and slopes in pifion-juniper woodlands. Elev. 5,000-7,000 ft. • Closest known population, about 4 miles northeast of DeBeque, Colorado. -------•-sa:rreilciay-oi.i!crops<lerive<l-rraillsl1afes-of tlle!Vlanc-cis-oi _____ _ Wasatch formations; open and disturbed sites in mixed Adobe thistle shrubland and pifion-juniper woodland. Elev. 5,000-8,000 ft. • Extensive population within a 5-mile radius of DeBeque. ______ ______ _ _ _!'.()Q!llation fo_t111g_~C>'1!h.Qfthe_111outh of'Bl!~y _ _Q_1Jlch in 2006.__ ___ _ Lesquerella parviflora Piceance bladderpod • Shale outcrops of the Green River formation; on ledges and slopes of canyons in open areas. Elev. 6,200-8,600 ft. • Closest known population occurs on the West Fork of Parachute Creek. -------------.-Steep -er-o~d~in_g_t_a~lu_s_s-lo--p-e-s -of~s~hale, Green River formation. Menze Ii a rhizomata Sul/ivantia hapemanii Thalictrum heliophilum Roan Cliffs blazingstar Elev. 5,800-9,000 ft. • Above the Left Fork of Roan Creek north of the mouth of Bear Gulch on the south slope of Horse Ridge along a dirt road 2 ____________ 111ile§\_Ve_St of_C::.C>t1!1t)'_l{()_~d207 {Carr c_ree_k_~()~d},_ ________ _ Hanging Garden Sullivantia • Under waterfalls, hanging gardens on wet cliffs at elevations from 7000-10,000 ft. Various geologic formations. • Several occurrences in Garfield County including East and West forks of Parachute Creek Sun-loving • Sparsely vegetated open sunny steep shale talus slopes of the Green River formation meadowrue _______ _ • Occurs in the Parachute Creek drainage Threatened (T), endangered (E) and candidate (C) are status categories related the Federal Endangered Species Act. These designations are the responsibility of the FWS and are granted to species through a formal listing process. Candidate species are those for which the FWS has sufficient information on their biological vulnerability to support proposals to list them as threatened or endangered. Table 3 includes the federally listed species. Sensitive is a designation used by the BLM and FS. Sensitive plant species are designated by the BLM State Director using criteria found in BLM Manual 6840 and from consultation with BLM field offices, the FS and the Colorado Natural Heritage Program (CNHP) The BLM sensitive plant list does not duplicate those species that are on the federal T &E list but does include some species proposed for listing or considered as candidates for listing (Table 4). 3.2 Procedures Based on soil types and slope, WWE biologists searched likely areas for plants. Searches were conducted as late as possible in April to allow for plant growth. Wasatch soils near the mouth of Clear Creek were searched as well as steep slide areas in the Green River Formation. Biologists did not search every slide, but selected areas that were representative of the extensive steep talus slopes in the canyon(s). The locations of the TESS plants discovered during the searches were plotted on aerial photographs. Because the waterfalls in Clear Creek and its tributaries were still carrying spring runoff, an extensive search for hanging gardens sullivantia was not conducted. West Water Engineering Page 12 of 24 pages 5/21/2007 All locations of TESS plants were recorded using handheld Guidance Po siti oning System (GPS) units and locati ons are reported as UTM coordinate s (Datum: WGS84 , Zone: l 2S). 3.3 Observations Although searches were conducted as late as possible in April to allow fo r plant growth, primarily plant material from the 2006 growing season was discovered. Two of the ten TESS species described above were found. Roan Cliffs blazingstar (MERH) and sun-l ov ing meadowrue (THHE) were found on many of the steep slides that were s urveyed. Figure 3 illustrate s the distribution of the plants that were discovered. Note that o nly a portion of the many talu s s lopes were surveyed. Because WWE biologists did not have access to the slide habitats in Doe Gulch, Deer Park Gulch and the sma ll canyons on the east side of Clear Creek south of Deer Park Gulch, tho se areas could not be surveyed. Man y comparatively small slides exist on the west side of Clear Creek and only a few of these areas were surv eyed for TESS plants. WWE bi o logists feel that a more thorough survey of the west s ide would result in many more TESS plant discoveries, especially of Roan Cliffs bl az ingstar, which appears to prefer more eastern and north-eastern aspect, while sun-loving meadowrue appears to thrive in full sun exposures. The sma ller, ephemeral waterfalls high in the cliffs on th e west side of Clear Creek may also provide habitat for hanging gardens sullivantia . Photo s 5 and 6 show the steep rocky slopes searched by WWE biologists and an example of the plant mater ial s th ey found. Photo 5. Steep talus slope in upper Potts Creek, habitat for TESS plants WestWater Engineering Page 13 of 24 page s 5/21/2007 • ,.,.DD<_ Photo 6. Roan Cliffs blazingstar: old plant material from 2006, note new green growth 4.0 Weeds Previous reports by WWE biologists (WWE 2006a , b) have documented severe infestations of weeds and inva sive noxious plant s in Clear Creek. These rep ort s concentrated on the Clear Creek drainage below the confluence of Tom Creek. This survey allowed the entire drainage below the rim s to be surveyed for weeds/noxious plants. 4.1 Procedures In conjunction with raptor ne st searches in riparian habitat, TESS plant surveys on the steep hillsid es and other biological surveys, WW E biologists conducted foot surveys for weeds throughout the length of Clear Creek. In many cases, species determination was based on last yea r's growth; in so me cases , basal rosett es were also present. WW E biologi sts have extensive expe rience in plant identification; weeds spec ies were identified after consulting Colorado Flora: Western Slope (Weber and Wittmann 2001) and Weeds of the West (Whitson 1996). All location s of weeds and noxious plants were recorded us ing handheld OPS units and locations are reported as UTM coordinates (Datum: WGS84 , Zone: 12S). 4.2 Observations Table 5 provides a list of the weeds recorded by WW E biologi sts in Clear Creek and its tributaries. We eds on the Garfield County li st, as well as those on all three lists (State A, B and C) published by the state of Co lorado, plu s one species known to be problematic by WW E biologists, are included. The table includ es all species encountered by WWE biol og ists during WestWater Engineering Page 14 of 24 pages 5/2 l/2007 surveys in November, 2006 (WWE 2006a), except for cutleaf n ights hade (Solanum triflorum) and field bindweed ( Convolvulus arvensis). Little of the foliage of these plants persists to the fo ll owing growing season and the tiny p lants emerging this spring were missed by WWE bio logists. Ta ble 5. Weeds observed in Clear Creek an d its t rib utar ies Pla nt Code Co mmo n Na me Scient ific Name St at us* ARM I2 Common burdock Arctium minus C,G BRTE Cheatgrass Bromus tectorum c CADR Hoary Cress/Whitetop Cardaria draba B,G CANU4 Musk Thi stle Carduus nu/ans B,G CIAR4 Canada Thi stle C irsium arvense B,G CIIN Chicory Cichorium intybus C,G CIVU Bull Thist le C irsium vul~are B CLOR Chinese clematis Clematis orientalis B CYOF Houndstongue Cyno~lossum officinale B,G ERCI6 Redstem Filaree Erodium cicutarium B ONAC Scotch thi stle Onopordum acanthium B,G SAIB Ru ss ian Thistle S a/so/a iberica N TARA Saltcedar Tamarisk ramosissima B,G VETH Common mu ll ein Verbascum thaJJSu s c = " " . = ,, " . = " " .. = = Status. A state A hst, B state B hst, C state C hst, G Garfield hst, N not current ly listed but invas ive and prob lemat ic in reclamat ion. P h oto 7. Heavy infestation of co mm o n m ull ein o n west side of C lear Creek jus t a bove Tom Creek W es twater Engi nee rin g Page 15 of 24 pages 5/21/2007 Houndstongue is the most widespread weed that WWE biologists encountered during the surveys. It is found from the heads of the drainages to the mouth of Clear Creek, in the riparian as well as on steeper hillsides. The four thistle species and common mullein are probably in next in order of occurrence, with some patches of mullein so thick that biologists reported it "feels like walking on a wooly carpet". Photo 7, above, illustrates one of the heavy infestations of common mullein. This report contains no map(s) of weeds because the distribution of weeds and noxious invasive plants in Clear Creek is so widespread. 5.0 Waters of the United States 5.1 Background Information Waters of the United States includes lands likely to be within the jurisdiction of the COE under Section 404 of the Clean Water Act. WWE biologists and Geographic Information System (GIS) specialist performed an evaluation of the property to identify lands that may be within COE jurisdiction during the course of the biological surveys. Waters of the United States includes wetlands and drainage courses (including streams, ephemeral drainages that connect to streams via surface flow or subsurface connection), ponds, lakes and springs. Clear Creek has many tributaries; some have active flows year-round, some carry water during the snowmelt/spring runoff, others carry water only during major storm events. A section of Clear Creek at the confluence of Tom Creek ceases to carry water during the late spring and summer. Surface flows reappear downstream, presumably from springs and subsurface flows. On many of the steep slopes on both sides of Clear Creek there are drainages that apparently carry significant volumes of water off the near-vertical cliffs and down to the valley floor. Many have prominent alluvial fans with no apparent stream channel that connects to Clear Creek. The water apparently is absorbed into the rocky, porous alluvial fan and is carried under the surface. 5.2 Procedures The GIS specialist for WWE used high quality aerial photographs, U. S. Geological Survey (USGS) topographic maps and Garfield County stream data to identify each drainage that appeared to connect with Clear Creek, either by surface flow or by suspected subsurface connection. In the field, WWE biologists recorded GPS locations of dry streambeds and active flows during surveys ofriparian areas for weeds and wildlife species. When possible, the coordinates of the confluence of the dry streambed or side drainage with Clear Creek were recorded. 5.3 Observations Figure 4 illustrates the drainages that have been designated as possibly jurisdictional by WWE staff. It includes active streams, dry streambeds and wetlands. Drainages are numbered from south to north; the figure shows that nearly 80 waterways may fall under the jurisdiction of the COE. Wetlands WWE biologists recorded four potential wetland sites. There is a small wetland (WE-I) populated with rushes and sedges just under the Gibler Ditch; just east of this site is an area on the hillside populated with tamarisk (WE-2). A third suspected site (WE-3) is on the east side of Clear Creek just north of Scott Gulch. It is a small fenced-in area with willow or tamarisk. The fourth wetland (WE-4) is adjacent to the main channel of Clear Creek below the confluence of Westwater Engineering Page 16 of 24 pages 5/21/2007 Buck Gulch near a head gate. The exact coordinates of WE-2 and WE-3 were not recorded because biologists suspected the sites were on Shell property. Streams, Drainages, Ponds At the time of survey, water was flowing in the main stem of Clear Creek for its entire length, in Tom Creek, in Cottonwood Creek and in Willow Creek. These drainages, in addition to several drainages that were already dry at the time of the survey, are included as jurisdictional waterways. In addition, there are several drainages that carry an appreciable amount of water, especially during major storm events that do not have an apparent confluence with Clear Creek. WWE biologists suspect that these drainages have a subsurface connection. Figure 4 includes streams with an active (persistent) water flow, dry streambeds with a discernable connection with Clear Creek, and dry streambeds that have no surface connection. Springs and seeps As mentioned above, a segment of Clear Creek dries up in late spring and summer, but then reappears further south. Biologists noted three seeps or springs (see wetlands above), but the abundance of water during the survey made detection of additional springs or seeps impossible. 6.0 Aquatic Habitat 6.1 Procedures While surveying riparian areas for weeds, raptor nests and BOCC, WWE biologists took note of the condition of the aquatic habitat in Clear Creek. No water quality, macro-invertebrate or fish sampling was conducted. 6.2 Observations Overall aquatic and riparian habitat conditions are deemed poor primarily because of historic overgrazing in the drainage. Creek banks are incised, eroded and unstable due to continual removal of streamside vegetation (Photo 8). Sedimentation and the resulting "cementing" of stream substrate are evident, resulting in poor aquatic invertebrate production. There is some cottonwood regeneration occurring in sections of the creek, but very few willows can be found resulting in reduced stream shading. Lack of shade over the stream increases water temperature, especially in late spring and summer when water flow decreases, resulting in reduced insect production. 7.0 Other Wildlife Observations During the course of the surveys in Clear Creek, many other wildlife species and sign were observed and recorded. Wild turkeys, elk, deer and a few snakes (bull and garter) added variety for the biologists. Turkeys and elk use the entire drainage; mule deer were concentrated in the P J habitat near the mouth of the canyon. As mentioned above, the number of species and individual songbirds increased throughout the month of April. Biologists encountered fresh bear droppings in upper Clear Creek and in Sheep Creek. These sites provide excellent habitat for bears, with stands of chokecherry, oak and other food sources that are important, especially in the fall as bears attempt to gain weight prior to winter. Westwater Engineering Page 17 of 24 pages 5/21/2007 8.0 Summary and Recommendations Biolog ic al surve ys conducted by WWE biologi sts identified ten raptor specie s pre se nt in the proj ect a rea and document ed nesting by e ight spec ies of raptors. The presence of four non-raptor BOCC species was confirmed. Two species of TESS plants were ob se rv ed a nd initi al mappin g of th eir di str ibuti on was accomplished. The widespread di stribution of 14 spe cie s of weeds was recorded with several specie s occ urrin g throughout the ent ire canyon. Wa ters of the United States were ma pp ed. Although no intensive aquatic surv eys were conducted, the overall condition of aqu atic habit at in Clear Creek is deemed poor by WWE bi ologists. An abundan ce of wild turke ys, elk and other wildli fe species was noted. The following sec ti ons provide reco mm en dations fo r se lecte d topics . 8. 1 Raptors Activities assoc iate d with e ne rgy deve lopm e nt in C lea r Cree k hav e th e pote ntial to impact raptor popul ati ons. In order to reduc e the pot ential for imp ac ts, it is import an t that construction and drilling activities be sch edul ed such th at they do not interfere with breeding, ne stin g and bro od- rearing activities. The following recommendations should be considered Be st Management Practices (BMP s) for minimi zi ng the effects of energy development on raptor populations. 8.1.1 Timing Limitations In areas of known raptor ne stin g, cons truction and drillin g activities should not be scheduled betwee n territ ory establishment and di spersa l of yo un g from th e ne st. If work is pl a nned during the ne st in g seaso n, areas of kn own and potential nes tin g should be invento ri ed by qualified biol og ists. Timing limita tion restr icti ons should then be considered and ap pli ed to all ac tiv e WestWate r Engineering Page 18 of 24 pages 5/21/2007 nests. WWE recommends temporal and spatial restrictions for activities near active nests based on BLM stipulations (BLM 1997), Colorado Division of Wildlife (CDOW) recommendations (Craig 2002) and literature review of nesting season timing for raptors in the Roan Plateau region (Andrews and Righter 1992, Kingery 1998, Poole 2005). These recommendations are summarized in Table 6 and illustrated on Figure 2. Table 6. Timing limitations and NSO recommendations for active raptor nests Species Buffer Zone -NSO Seasonal Restriction Red-tailed Hawk Swainson's Hawk Sharp-shinned Hawk Cooper's Hawk Peregrine Falcon Prairie Falcon Golden Eagle Northern Harrier American Kestrel Flammulated Owl Northern Saw-whet Owl Northern Pygmy-Owl Long-eared Owl Great Horned Owl 0.33 mile 0.25 mile 0.25 mile 0.25 mile 0.5 mile 0.5 mile 0.25 mile + alt. nests 0.25 mile * 0.25 mile 0.25 mile 0.25 mile 0.25 mile * 1 March -15 July I April -15 August 1 April -15 August I April -15 August 15 March -31 July 15 March-31 July I January -15 July I April -15 August * I April -I August I March -I August 15 March-15 July I March -15 July * * American Kestrels and Great Horned 0\vls are relatively tolerant of human activity. Keep activity to a minimum during breeding season. 8.1.2 Habitat Fragmentation and Removal Fragmentation of wildlife habitat is a concern due to the rapid development of natural gas resources by a number of private companies. Habitat fragmentation is defined as an increased partitioning of intact vegetative communities that tends to reduce the suitability for wildlife occupancy. Fragmentation increases the potential for the establishment of non-native or invasive species which may out-compete preferred native species. When possible, new infrastructure should be constructed along existing pipeline and access road corridors to reduce habitat fragmentation in this area. Every effort should be made maintain the integrity of forested areas, both in the riparian zone and on north-facing hillsides, with an emphasis on protecting those areas where nesting is known to occur. Removal of trees containing raptor nests should be prohibited. 8.1.3 Future Monitoring Future monitoring of known nest sites as well as continued surveying for new sites by qualified biologists may allow insight into population trends and habitat requirements of species nesting in the region. Some portions of the drainage have not yet been thoroughly surveyed due to access and safety concerns. As development continues and access improves, these areas should be inventoried to allow implementation of BMP to minimize impacts on raptor populations. WestWater Engineering Page 19 of 24 pages 5/21/2007 8.2 Birds of Conservation Concern (BOCC) other than raptors Surveys later in the spring would allow BOCC species to arrive and establish breeding territories in the area. It is likely that additional BOCC species would be observed and nesting habitats could be delineated. 8. 3 Threatened, Endangered and Sensitive Species (TESS) plants Surveys should be conducted later in the spring to allow for germination, flowering/fruiting of TESS plants, as well as searches in active and ephemeral waterfalls high on the canyon walls. 8.4 Weeds and Invasive Plants Weeds are so widespread in Clear Creek canyon that managers may feel there is no solution. However, weed reports previously written by WWE and cited in this report outline specific measures that can be taken to address the rampant weed issues in the drainage. 8.5 Waters of the United States To protect the integrity of Clear Creek waters and riparian habitat, precautions need to be taken when crossing or intersecting the waterways identified (Figure 4). Adequate barriers and filtration methods should be used to prevent and reduce soil from eroding into the water and riparian areas of Clear Creek and its tributaries. The Corps of Engineers should be consulted for Standard BMPs used in construction activities that intersect jurisdictional waterways. 8.6 Aquatic Habitat To better determine the current condition and potential for aquatic habitat(s) in Clear Creek, we recommend water quality assessment, a survey after runoff to determine which reaches of the stream maintain adequate flows, fish sampling and macro-invertebrate sampling. 8.7 Bears In recent years, the CDOW has experienced an increasing number of situations where conflicts have occurred between black bears and natural gas development. Most often incidents involve workers that have created problems at campsites (remote man camps) or around drilling sites where trash has not been protected and bears have been attracted in search of food. By their nature, black bears are not aggressive and prefer to avoid contact with humans. However, they are constantly searching for food and if they smell food trash, they can come in contact with humans. During times of drought or lack of seed/berry production due to frost, bears will be in a constant search for food. Intentional feeding of bears has occurred in the past and should never be allowed by employees. Intentional feeding almost always leads to unanticipated problems including direct contact with humans (human bites, breaking into cabins, trailers, trucks). In order to avoid bear problems, all potential sources of food attributable to workers should be eliminated from access by bears. Any trash containing food items produced on drilling sites and in man camps needs to be protected from bears. Removal of trash containing food items and bear-proof trash containers are two possible solutions. This requires aggressive and persistent action to eliminate the opportunity for bears to obtain food items in and around production sites. West Water Engineering Page 20 of 24 pages 512112007 Black bear problems are best prevented by proactive measures rather than attempting to solve an ongoing problem. The CDOW much prefers avoidance to problem management. 9.0 References Andrews, R., and R. Righter. 1992. Colorado Birds: A Reference to Their Distribution and Habitat. Denver Museum of Natural History, Colorado. BLM. 1997. Record of Decision and Approved White River Resource Area, Resource Management Plan. U.S. Bureau of Land Management, Meeker, Colorado. Craig, G.R. 2002. Colorado Division of Wildlife. Unpublished Report. Craig, G. R., and J. H. Enderson. 2004. Peregrine Falcon Biology and Management in Colorado 1973-200. Technical Publication No. 43, Colorado Division of Wildlife, Fort Collins, Colorado. Kennedy, P. L., and D. W. Stahlecker.1993. Responsiveness of nesting northern goshawks to taped broadcasts of 3 conspecific calls. Journal of Wildlife Management 57:249-257. Kingery, H. E. (editor).1998. Colorado Breeding Bird Atlas. Colorado Bird Atlas Partnership and Colorado Division of Wildlife, Denver. Poole, A. (Editor). 2005. The Birds of North America Online: http://bna.birds.cornell.edu/BNA/. Cornell Laboratory of Ornithology, Ithaca, NY Reynolds, R. T., R. T. Graham, M. H. Reiser, R. L. Bassett, P. L. Kennedy, D. A. Boyce Jr., G. Goodwin, R. Smith and E. L Fisher.1992. Management recommendations for the northern goshawk in the southwestern United States. General Technical Report RM-GTR-217, USDA, Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO, USA. Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz, and C. Spurrier. 1997. Colorado Rare Plant Field Guide. Prepared for the U.S. Bureau of Land Management, the U.S. Forest Service and the U.S. Fish and Wildlife Service by the Colorado Natural Heritage Program. FWS. 2002. Birds of Conservation Concern 2002. U.S. Fish and Wildlife Service, Division of Migratory Bird Management, Arlington, Virginia, USA. Weber, W. A. and R. C, Whittmann. 2001. Colorado Flora: Western Slope. Third Edition. University of Colorado Press, Boulder, CO WWE. 2006a. Chevron Clear Creek 8 inch pipeline. Integrated Vegetation and Noxious Weed Management Plan, Garfield County Colorado. WestWater Engineering, Inc., prepared for Chevron/Texaco USA, December 2006. WWE. 2006b. Natural resource and wildlife concerns for natural gas exploration and development in Clear Creek canyon and the surrounding area. WestWater Engineering, Inc., prepared for Chevron/Texaco, USA, September 2006. Whitson, T. (editor) 1996. Weeds of the West. The Western Society of Weed Science in cooperation with the Western U.S. Land Grant Universities Cooperative Extension Services. University of Wyoming Westwater Engineering Page 21 of 24 pages 5/21/2007 Figure 2: Chevron Clear Creek Raptor Nests & Owl Sightings Westwater Engineering May2007 Miies 0 0.5 1 2 ACC -P ·Probable Acc~lp~lt~e~r ~~!/l~~~~ AMKE ·American Kestral COHA • Cooper'• Hawk FLOW • Flammulated Owl GHOW • Great Homed Owl GOEA • Golden Eagle NSWO • Northern Saw-whet Owl PEFA • Peregrine Falcon RTHA • Red-tailed Hawk Unkno wn ·Unknown Raptor Raptor Nttl Statua . -- • LW,no.., C)"""°'N"'9ull<n CJMM WF~~JA TESS Plant• e Roan Cliffs blazlngstar • Sun-loving meadowrue LJ BLM Figure 3: Chevron Clear Creek TESS Plant Locations Westwater Engineering May 2007 Miles 0 0.25 0.5 - COE Jurisdictional Waters Westwater EnglnHrlng Miles 0 0.25 0.5 • Possible Jurisdictional waters • Wetiands -Garfield County Stream Data LJ BLM APPENDIX L NOISE ANALYSIS ;c., CORDILLERAN October 22, 2008 Compressor Unit Noise Analysis 826 21 Y, Road Grand Junction, CO 81505 T: 970.263.7800 F: 970.263.7456 A sound level study has been completed for Chevron USA, Inc. (Chevron) at the existing 36-lB Compressor Site located approximately 20 miles northwest of DeBeque, Colorado. This analysis is for the addition of a Caterpillar G35 l 6 LE gas powered compressor. This unit will be used to in addition to the existing Ariel compressor, to boost the rate and capacity at which is gathered and transferred from the Skinner Ridge area into nearby market lines. As indicated in the data provided by the manufacturer for this generator, the sound produced by the compressor is 100 db(A) measured at a distance of 1 meter from the compressor. This compressor will be located no closer than 300 feet from any property boundary. The change in sound pressure, as measured in decibels (db), with distance from the noise source can be calculated using the following equation: SPL = 10*log(I2/Il) In this equation, SPL is the change in sound pressure level between two relative intensities (!2 and II). This equation can then be used to calculate the sound pressure level drop over distance from a known source. Utilizing this relationship, the calculated sound pressure level at 300 feet from the generator will be approximately 60.8 db(A), which is below the applicable Colorado noise standard. The use of available control technologies (e.g. mufflers) on all equipment and motors ensures compliance with State noise standards and that adjacent properties are not affected. The Skinner Ridge project is in a remote location with no noise receptors within the property boundary other than Chevron employees and construction/operations/drilling contractors. Steep hillsides buffer and screen noise from public receptors, therefore no public nuisance or hazard is created. Light Industrial Standards of 70 db( A) 65 db( A) apply where there is no reasonably proximate occupied structure or designated outside activity area. Based on the information provided above, it is reasonable to expect that the operation of the Compressor Site by Chevron will not exceed the applicable Colorado noise standards. Sincerely, Cordilleran Compliance Services, Inc. Tim Dobransky, CHMM Project Manager Cordil!eran Compliance Services, Inc. Grand Junction, CO • Denver, CO Environmental Consulting Engineers and Scientists Engineering Page> Noise> Attenuation by distance for overall value Page I of I j Oct 2008 Home Home Up Back OVERALL NOISE ATTENUATION BY DISTANCE (Point Source) PROJECT DATA (Optional) Project 36-1 B Compressor Addition Remarks Noise Analysis Your ref EG08333 G3516 LE Client Chevron USA Inc. Identification CALCULATION INPUT (Required) Source Select source input values ()Sound Power Level (PWL, Lw) @Sound Pressure Level (SPL, Lp) Noise Source Level Level in dB(A) 100 Transmission path @spherical 0 hemi-spherical 0 quarter-spherical lmmission Point (listener) Distance from Source 300 ft Client's ref J. Justus difference between PWL and SPL m distance from source Note: if the source is specified as SPL the transmission path will be taken the same as for the distance to the listener. Manufacturers often provide point source figures for spherical transmission, if in doubt verify with vendor and use PWL figures. calculate I About Us Terms of Use Tell a Friend e-mail Make Homepage + Favorites http://www.engineeringpage.com/ calculators/noise/ distance_ dB (A) .html 10/15/2008 Engineering Page> Noise> Attenuation by Distance Home Up Back NOISE ATTENUATION BY DISTANCE (Point Source) PROJECT DATA (Optional) Project Remarks Yourref Identification 36-1 B Compressor Addition Noise Analysis EG08333 Client G3516 LE Client's ref CALCULATION INPUT Source Noise Levels Chevron USA Inc. J. Justus Sound Pressure Level (SPL, Lp) at 1 m from source 100 dB(A) Transmission path spherical lmmission Point (listener) Distance from Source 300 ft CALCULATION RESULTS Sound levels Source Sound Power Level (PWL) Attenuation 111 dB(A) Attenuation by distance of 91.44 m 50.2 lmmission (listener's) point Sound Pressure Level (SPL, Lp) Home www.engineeringpage.com 60.8 dB(A) http://www.engineeringpage.com/ cgi-bin/no ise/ dis_ one.p 1 Page 1 of 1 10/15/2008 G3516 LE GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron CATERPILLAR• GAS COMPRESSION APPLICATION ENGINE SPEED (rpm): COMPRESSION RATIO: AFTERCOOLER WATER INLET (°F): JACKET WATER OUTLET (°F): COOLING SYSTEM: IGNITION SYSTEM: EXHAUST MANIFOLD: COMBUSTION: NOx EMISSION LEVEL (g/bhp-hr NOx): I RATING I ENGINE POWER INLET AIR TEMPERATURE ENGINE DATA FUEL CONSUMPTION INLET MANIFOLD PRESSURE IGNITION TIMING EXHAUST STACK TEMPERATURE 1400 8:1 130 210 JW+OC ,AC ADEM3 ASWC Low Emission 1.5 EXHAUST GAS FLOW (@slack temp, 14.5 psia) EXHAU~T GAS MASS FLOW EMISSIONS DA TA NOx (as N02) co THC (molecular wt. of 15.84) NMHC (molecular wt. of 15.84) NMNEHC (molecular wt. of 15.84) HCHO (Formaldehyde) C02 EXHAUST OXYGEN HEAT REJECTION HEAT REJ. TD JACKET WATER HEAT REJ. TD ATMOSPHERE HEAT REJ. TD LUBE OIL HEAT REJ. TO AFTERCOOLER HEAT EXCHANGER SIZING CRITERIA HEAT REJ. TO JACKET WATER/LUBE OIL CIRCUIT HEAT REJ. TO AFTERCOOLER CONQIT!ONS ANO PSE!NII!ONS I I Piceance Notes I (1) I (2) (3) (4) (5) 15\ (6) (6) (6) (6) (6) (6) (6) m (8) (8) (8) IS\19\ FUEL SYSTEM: HPG IMPCO with Air Fuel Ratio Control SITE CONDITIONS· FUEL: Picance Fuel FUEL PRESSURE RANGE (psig): 35.0-40.0 FUEL METHANE NUMBER: 67.8 FUEL LHV (Btu/sc~: 983 ALTITUDE (ft): 6250 MAXIMUM INLET AIR TEMPERATURE (°F): 100 NAMEPLATE RATING: 1340 bhp@1400rpm LOAD bhp OF Btu/bhp-hr in Hg(abs) 0 BTDC OF ft3/min lb/hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr g/bhp-hr %DRY Btu/min Btu/min Btu/min Btu/min Btu/min Btu/min MAXIMUM RATING 100% 1340 49 7635 69.5 29.6 885 7803 13285 1.50 2.24 2.77 0.54 0.28 0.27 527 8.0 41987 5313 6262 10640 53700 15479 SITE RA TING AT MAXIMUM INLET AIR TEMPERATURE 100% I 75% I 55o/o 1219 I 914 I 670 100 100 100 7730 8033 8384 64.1 50.4 38.8 29.6 29.6 29.6 879 870 872 7133 5388 3812 12192 9266 6533 1.50 1.50 1.50 2.27 2.32 2.26 2.87 3.14 3.25 0.56 0.62 0.64 0.29 0.31 0.32 0.28 0.31 0.32 533 558 579 7.9 7.7 7.5 39875 34420 30217 4992 4187 3543 5947 5133 4507 14742 9953 3506 Engine rating obtained and presented in accordance with ISO 3046/1, adjusted for fuel, site altitude and site inlet air temperature. 100% rating at maximum Inlet air temperature is the maximum engine capability for the specified fuel at site altitude and maximum site inlet air temperature. Max. rating is the maximum capability for the specified fuel at site altitude and reduced inlet air temperature. Lowest load point is the lowest continuous duty operating load allowed. No overload permitted at rating shown. For notes information consult page three. PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 PAGE 1OF4 G3516 LE GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron GAS COMPRESSION APPLICATION Piceance Engine Power vs. Inlet Air Temperature 1450 1400 Cl. 1350 .c .0 :;i 1300 ~ 1250 0.. Q) c 1200 ·;;, c UJ 1150 1100 1050 30 40 50 60 70 80 90 Air Temperature, °F Engine Power vs. Engine Speed 1600 1400 Cl. 1200 .c .0 ~ 1000 0 800 0.. Q) c 600 ·;;, c UJ 400 200 0 900 1000 1100 1200 1300 Engine Speed (rpm) Engine Torque vs. Engine Speed 6000 5000 .0 ·~ .. 4000 => f! 3000 0 I- Q) c ·;;, 2000 c UJ 1000 0 900 1000 1100 1200 1300 Engine Speed (rpm) PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 100 1400 1400 110 CATERPILLAR• 120 130 D Full Continuous Operating Range at Standard Conditions -> Max Power vs. 1500 Speed Capability for Site Conditions -> Max Torque vs. 1500 Speed Capability for Site Conditions 140 PAGE 2 OF 4 G3516 LE GAS COMPRESSION APPLICATION ~ GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron Piceance 1. Engine rating is with two engine driven water pumps. Tolerance is± 3o/o of full load. 2. Fuel consumption tolerance is± 3.0o/o of full load data. 3. Inlet manifold pressure is a nominal value with a tolerance of± 5 %. 4. Exhaust stack temperature is a nominal value with a tolerance of (+)63°F, (-)54"'F. 5. Exhaust flow value is on a "wet" basis. Flow is a nominal value with a tolerance of± 6 %. CATERPILLAR• 6. Emission levels are at engine exhaust flange prior to any after treatment. Values are based on engine operating at steady state conditions, adjusted to the specified NOx level at 100°/o load. Fuel methane number cannot vary more than ± 3. NOx tolerances are +111 %, -96% of specified value. All other emission values listed are higher than nominal levels to allow for instrumentation, measurement, and engine-to-engine variations. They indicate "not to exceed" values. 7. Exhaust Oxygen level is the result of adjusting the engine to operate at the specified NOx level. Tolerance is± 0.5. 8. Heat rejection values are nominal. Tolerances, based on treated water, are± 10% for jacket water circuit,± 50% for radiation,± 20% for lube oil circuit, and ± 5% for aftercooler circuit. 9. Aftercooler heat rejection includes an aftercooler heat rejection factor for the site elevation and inlet air temperature specified. Aftercooler heat rejection values at part load are for reference only. Do not use part load data for heat exchanger sizing. 10. Heat exchanger sizing criteria are maximum heat rejection for the site, with applied tolerances. PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 PAGE 3 OF4 G3516 LE GAS COMPRESSION APPLICATION Constituent Water Vapor Methane Ethane Propane I so butane Norbutane lsopentane Norpentane Hexane Heptane Nitrogen Carbon Dioxide Hydrogen Sulfide Carbon Monoxide Hydrogen GAS ENGINE SITE SPECIFIC TECHNICAL DATA Chevron Piceance Abbrev Mole •t. ~smn H20 0.000 0.000 Fuel Makeup: CH4 88.916 88.924 Unit of Measure: C2H6 5.679 5.680 C3H8 1.686 1.686 Qal~ulated Euel EcQpe!lie~ iso-C4H10 0.337 0.337 Caterpillar Methane Number: nor-C4H10 0.350 0.350 iso-C5H12 0.141 0.141 Lower Heating Value (Btu/sci): nor-C5H12 0.105 0.105 Higher Heating Value (Btu/sci): C6H14 0.100 0.100 WOBBE Index (Btu/sci): C7H16 0.100 0.100 N2 0.122 0.122 RPC (%) (To 905 Btu/sci Fuel): C02 2.428 2.428 H2S 0.000 0.000 Compressibility Factor: co 0.000 0.000 Steich A/F Ratio (VolNol): H2 0.000 0.000 Steich A/F Ratio (Mass/Mass): CATERPILLAR" Picance Fuel English 67.8 983 1087 1226 100% 0.997 10.23 15.93 Oxygen 02 0.012 0.012 Specific Gravity (Relative to Air): 0.642 Helium HE 0.005 0.005 Specific Heat Constant (K): 1.301 Neopentane neo-C5H12 0.000 0.000 Octane C8H18 0.000 0.000 Nonane C9H20 0.010 0.010 Ethylene C2H4 0.000 0.000 Propylene C3H6 Q QQQ Q QQQ TOTAL (Volume%) 99.991 100.000 CQt:IC!IIIQ~S At:IC C!EElt:llIIQt:IS Caterpillar Methane Number represents the knock resistance of a gaseous fuel. It should be used with the Caterpillar Fuel Usage Guide for the engine and rating to determine the rating for the fuel specified. A Fuel Usage Guide for each rating Is included on page 2 of its standard technical data sheet. RPG always applies to naturally aspirated {NA) engines, and turbocharged (TA or LE) engines only when they are derated for altitude and ambient site conditions. Project specific technical data sheets generated by the Caterpillar Gas Engine Rating Pro program take the Caterpillar Methane Number and RPC into account when generating a site rating. Fuel properties for Btu/scf calculations are at 60F and 14.696 psia. Caterpillar shall have no liability in law or equity, for damages, consequently or otherwise, arising from use of program and related material or any part thereof. FUEi LIQUIDS Field gases, well head gases, and associated gases typically contain liquid water and heavy hydrocarbons entrained in the gas. To prevent detonation and severe damage to the engine, hydrocarbon liquids must not be allowed to enter the engine fuel system. To remove liquids, a liquid separator and coalescing filter are recommended, with an automatic drain and collection tank to prevent contamination of the ground In accordance with local codes and standards. To avoid water condensation in the engine or fuel lines, limit the relative humidity of water In the fuel to 80% at the minimum fuel operating temperature. PREPARED BY: Jim Rose, Universal Compression, Inc. Data generated by Gas Engine Rating Pro Version 2.05.00 Ref. Data Set DM8542-01-002, Printed 18Apr2007 PAGE4 OF 4 Shown with Optional Equipment FEATURES •DIESEL STRENGTH All Caterpillar" gas engines are built on diesel frames which means greater service life. Caterpillar gas engines inherit more from their diesel counterparts than just strength. They are backed by the same support system recognized as one of the most sophisticated and dependable in the world. •APPLICATION FLEXIBILITY Broad operating speed range and ability to burn a wide spectrum of gaseous fuels. •LOW EMISSIONS Low emission engines are capable of NO(x) levels as low as 2.0 grams/hp-hr. Lower emissions may be achievable for selected applications. Consult your Caterpillar dealer. Gas Industrial Engine G3516 660-1340 hp Standard and Low Emission SPECIFICATIONS V-16, 4-Stroke-Cycle, Spark Ignited Bore-in (mm) ........................ 6.7 (170) Stroke-in (mm) ....................... 7.5 (190) Displacement---<:u in (L) .............. 4211 (69.0) Compression Ratio STD .................................... 9:1 LE ...................................... 8:1 Aspiration ................ Naturally Aspirated or Turbocharged-Aftercooled Lube Oil Capacity-gal (L) STD* ............................. 153 (580) STD** ............................ 171 (646) LE ................................ 106 (402) Jacket Water System -gal (L) Capacity w/o Radiator ............... 53 (205) * Oil fill capacity with 21 elements **Oil fill capacity without elements .. • CATERPILLAR 9 GAS ENGINES Represent the latest technology in engine design. Engines are offered in both naturally aspirated and turbocharged/aftercooled configurations. TA is offered as standard and low emission. These different configurations offer: • High energy ignition systems for consistent firing High efficient combustion chamber for complete burning of the fuel. • Modern component design such as deep cup, oil gallery piston. • ELECTRONIC IGNITION SYSTEM WITH DETONATION SENSITIVE TIMING The Caterpillar electronic ignition system provides optimized spark timing for all operating conditions. Timing is automatically controlled to maintain continuous detonation protection. C..lTERPILLAR' STANDARD EQUIPMENT Air cleaners single stage, dry, with service indicator Breather, crankcase Carburetor natural gas Cooler lubricating oil Filter lubricating oil, RH Flywheel housing SAE No. 00 Governor Woodward Ignition system Altronic Ill Instrument panel, RH 8 gauge panel (STD) 12 gauge panel (LE) oi I pressure coolant temperature oil pressure differential intake manifold temp (TA only) pressure (LE) service meter exhaust pyrometer (LE) Lifting eyes Manifold, exhaust watercooled Pumps, gear driven aftercooler water (TA only) jacket water Rails, mounting, 10 in. Regulator, gas pressure SAE standard rotation Thermostats and housing Torsional vibration damper CONTINUOUS RATINGS (BHP) Aspiration 1400 rpm 1300 rpm 1200 rpm LE-90 1340 1245 1150 LE-130 1265 1175 1085 STDTA-90 1085 STD TA-130 1050 STD NA 660 PHYSICAL FACTORS Height Width in Imm) in(mm) LE 73.2 (1859) 67.1 (1703) STD TA 73.2 (1859) 67.1 (1703) STD NA 75.2 (19111 61.6 (1564) G3516 GAS INDUSTRIAL ENGINE OPTIONAL EQUIPMENT Cooling systems high temp (LE only) Exhaust fittings Muffler Power takeoffs Starting systems Tachometer Low BTU arrangements Landfill arrangements Air head for 3161 CSA ignition Air-to-air aftercooler connection 1100rpm 1000 rpm 1050 955 995 900 995 905 960 875 605 585 Length in(mm) 131 (3327) 131 (33271 126.4 (3211) 900 rpm 860 810 815 785 525 Weight lb (kg) 17 670 (8022) 17 470 (7931) 16 400 (7 446) G3516 GAS INDUSTRIAL ENGINE FUEL CONSUMPTION 13000 12 000 i 11 000 ~ 10 000 ai 9000 8000 7000 " " bkW 149 298 448 597 746 895 L400 rpm . I I I\.' / / 1209 rpr1 ~ 1000 rpm .~ ::.""' c. 900 rpm 200 400 600 800 1000 1200 bhp 4jl1ii·jii1i 13 000 12 000 q 11 000 c. :E 10 000 ~ 9000 8000 7000 13 000 12 000 1i= 11 000 c. ~ 10 000 ~ 9000 8000 7000 " " . . bkW 149 298 448 597 746 895 I .....-1200 rpl"{l \'\ .....,.. 1000 rp 1 m r--.' :~OOr m - . . . . 200 400 600 800 1000 1200 bhp bkW 149 298 448 597 746 895 ' 1_......1f00 rpm \\ \ 1000 rp~ I , 900 ~pm '<' "' N ' - . . . . 200 400 600 800 1000 1200 bhp 18.3 16.9 15.5 14.1 12.7 11.3 9.9 18.3 16.9 15.5 14.1 12.7 11.3 9.9 18.3 16.9 15.5 . ~ 14.1 ~ 12.7 ~ :. 11.3 9.9 ~ ~ ~ " :. 1' ~ ~ :. C..lTERPILLAR' MljEUM bkW 149 298 448 597 7 46 895 13 000 " 12 000 ~ 11 000 c. :E 10 000 s 9000 8000 " 1400 ~pm ~ l'\ 1200 rPf'l1 / 1000,rP01 " l"l ' ~ 9QO rpm "" 7000 200 400 600 800 1000 1200 bhp bkW 149 298 448 597 7 46 895 13 000 12 000 ~ 11 000 c. ;e 10 000 il 9000 m 1100 rpm, \ ,,. 1000 rpm ~ ,, " " ,..... / 00 rp r 8000 7000 . . . . . . 200 400 600 800 1000 1200 bhp LE refers to low emission engine configuration. STD refers to standard engine configuration. 18.3 16.9 ~ 15.5 ~ 14.1 ~ 12.7 :. 11.3 9.9 18.3 16.9 ~ 15.5 ~ 14.1 ~ " 12.7 :. 11.3 9.9 90 refers to attercooler water inlet temperature in 90° F (32° Cl. 130 refers to aftercooler water inlet temperature in 130° F (54° C). All data is based on standard conditions. 11° F (25° C) 500 ft Alt. These ratings do not allow for overload capability. C..lTERPILLAR' 63516 GAS INDUSTRIAL ENGINE GAS INDUSTRIAL ENGINE PHYSICAL FACTORS "' 146.2 (5.72) ~ g 0 ~ LEFT SIDE VIEW • • • REAR VIEW cm Centerline of Crankshaft s Jacket Water Outlet s Air Inlet [ill Centerline of Engine @) Aftercooler water inlet 8 Exhaust [QI] Rear face of Cylinder Block 9 Aftercooler water outlet @ Removal Distance @ Jacket Water Inlet § Fuel Inlet See general dimension drawing 114-6637 for additional Electronic Ignition System IE.LS.) engine detail and NA information. CONDITIONS AND DEFINITIONS Ratings are based on SAE J1349 standard conditions of 29.61 in Hg 1100 kPa) and 77° F 125° C). These ratings also apply at IS03046, DIN6271, and BS5514 standard conditions of 29.61 in Hg 1100 kPa), 81° F 127° C); and API 78-11C standard conditions of 29.38 in Hg 199 kPa), 85° F 129° C). Ratings are based on dry natural gas having a low heat value of 905 btu/ft'(35.54 MJ/N m'). Variations in altitude, temperature, and gas composition from standard conditions may require a reduction in engine horsepower. For magneto ignition system engines see general dimension drawing 7W4452. Note: General configuration not to be used for installation. Turbocharged-aftercooled ratings apply to 5000 ft (1525 m) and 77° F (25° C). Naturally aspirated engines apply to 500ft1150 m) and 77° F (25° C). For applications which exceed these limits, consult your Caterpillar dealer. Additional ratings may be available for specific customer requirements. Consult your Caterpillar representative for details. The International System of Units (SI) is used in this publication. Materials and specifications are subject to change without notice. LEHQ6163 (3-96) ©1996 Caterpillar Printed in U.S.A. Supersedes LEHH0572 All rights reserved. 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