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HomeMy WebLinkAbout3.0 BOCC Staff Report 07.21.2014Garfield County Board of County Commissioners Public Hearing Exhibits Limited lmpact Review Land Use Change Permit High Mesa Compressor Station (File LIPA-7752) Applicant: Grand River Gathering LLC July 21 ,2014 Exhibit #Exhibit Description 1 Public Hearing Notice lnformation Form and Attachments 2 Garfield County Land Use and Development Code, as amended 3 Garfield County Comprehensive Plan of 2030 4 Application 5 Staff Report 6 Staff Presentation 7 Referral Comments from Garfield Road and Bridge B Referral Comments from Garfield Consulting Engineer I Referral Comments from Grand Valley Fire Protection District 10 Referral Comments from the Colorado Parks and Wildlife 11 (burfu 0,/* 6'rtJi'tfrd 12 t,MPLuI*fuz 13 b6(r- A*tt /I 14 Aoin[u;E-T;;;^hh,/ 15 16 17 1B 19 20 21 22 23 24 25 26 27 28 tl EXHIBIT { REQUEST APPLICANT PROPERTY OWNER CONSULTANT ASSESSOR'S PARCEL # PROPERTY SlZE LOCATlON ACCESS EXISTING ZONING BOCC 7t21114 File No. LIPA-7752 GH Limited lmpact Review for a Compressor Station Grand River Gathering LLC Summit Midstream Encana Oil and Gas (USA) lnc. Olsson and Associates 2409-361-00-048 The site is located on approximately 3.31 acres of an overall 320 acre parcel. The site is located approximately 3 miles south of the Town of Parachute off of County Road 304. The site is generally located in Section 36, T7S, R96W. Existing private access road approximately 2.1 miles in length off of County Road 304 Rural PROJECT INFORMATION AND STAFF COMMENTS I. GENERAL PROJECT DESGRIPTION The Applicant is requesting Limited lmpact Review approval for the existing High Mesa Compressor Station. The Application was previously reviewed in 2012 but was withdrawn by the Applicant. The withdrawal has allowed the Applicant to address a number of key topics including noise and access. The facility consists of eight compressor units and a variety of support infrastructure and buildings as summarized below: 1. Seven skid-mounted engine driven reciprocating compressor units. 2. One engine driven reciprocating compressor unit within a 2,400 sq.ft. building (approved as part of a pipeline development permit). 3. Lube oil tanks, Dehydrator and BETX System. 4. Two double walled underground 80 bbl tanks. 5. Fuel gas skid. 6. Two 300 BBL condensate tanks with corrugated steel containment rings and washout tank. 7. lnstrument aid building (126 sq.ft.) and appurtenant equipment. 8. Filter/coalescers and associated equipment. L Electrical building (83 sq.ft.) and appurtenant equipment. l0.Control room building (116 sq.ft.) and related equipment. 11. Electrical panels and switch panels. 12.TCl 1 200 Combuster Unit. 13.TCl 2000 Combuster Unit. l4.Various piping and other appurtenant equipment. 15. Sound attenuating walls. The site includes existing gravel and compacted dirt roadways for access, circulation and parking areas, stormwater management and drainage BMP's (Best Management Practices), spill prevention measures (SPCC, Spill Prevention Control and Countermeasures Plan), chain link fencing, security gates, noise mitigation, signage and lighting. II. LOCATION - SITE DESCRIPTION . ZONING The Site is located off of County Road 304 is a rural area characterized by natural vegetation, open space, and oil and gas operations. lt is immediately adjacent to the Encana High Mesa Water lmpoundmenUStorage facility and several existing gas pads. The access road serves a variety of oil and gas facilities including gas pads, tanks storage areas, telecommunication facilities and pipelines. The site is located on the west side of a high mesa, sloping down moderately to the west. Existing vegetation outside the facility includes pinion pine, juniper, sage brush, native grasses, and other shrubs. No water courses or major drainages are noted on the site. Dry Creek runs in drainage located north and east of the site and Pete and SITE PLAN r"'-a t @ r.- -4' h.au Eqq, 6 r6d 6r*b,haa.4 rb tu. re * ri fr :. ru.ah rEr Jb*frtr.l+Ek+.ra;$o,-dr. 'r!,/ *(dn4biMHr etry\ r* :rr,k!b, h E.a.. iqd rd n xfr' tu.d.c1 #ter *xd I r,r,-t. {n. irdr,/t wt.idl t!rft ,. st irr'r.Fd'\!*+ rd Bill Creek runs in the drainage west of and below the site. Disturbed areas within the facility (not immediately adjacent to operations) and areas outside the security fencing have previously been re-vegetated. The site is zoned Rural and zoning on adjacent properties is also Rural. The nearest residence is between 4,200 ft. and 5,500 ft. from the facility. III. PUBLIC COMMENTS AND REFFERAL AGENCY COMMENTS Public Notice was provided for the Board of County Commissioner's public hearing in accordance with the Land Use and Development Code, as amended. No public comments have been received at this time. Comments have been received from referral agencies and County Departments and are summarized below and attached as Exhibits. 1. Garfield County Road and Bridge Department: lndicated that they see no problems with the proposal. 2.Garfield County Consulting Engineer, Chris Hale, Mountain Cross Engineering: lndicated that the drainage recommendations in the engineering reports should be implemented. Garfield County Vegetation Manager, Steve Anthony. Staff anticipates referral comments on the weed management plan prior to the public hearing. Garfield County Environmental Health: Staff has been contacted by the Environmental Health Department and we anticipate comments prior to the public hearing. Grand Valley Fire Protection District. lndicated that they do not have any problems with the project. Colorado Parks and Wildlife (CPW). Provided Best Management Practices recommendations for inclusion as conditions of approval. They included weed management, re-vegetation with weed free seed mixes, seed mix recommendations, reclamation for deer and elk habitats, and mitigation of noise impacts. Agencies that did not submit comments include: (a) the Colorado Department of Public Health and Environment; (b) Bureau of Land Management; and (c) Town of Parachute. IV. STAFF COMMENTS AND ANALYSIS !n accordance with the Land Use and Development Code, the Applicant has provided detailed responses to the Submittal Requirements and applicable sections of Article 7, including Section 7-1001 lndustrial Use Standards. The Application materials include an lmpact Analysis and related consultant reports, technical studies, and plans. 7-101 - 103: Zone District Requlations. Comprehensive Plan & Compatibility The proposed use demonstrates general conformance with applicable Zone District provisions contained in the Land Use and Development Code and in particular Article 3 standards for the Rural Zone District. The Comprehensive Plan 2030 designates the site as RMH (Residential Medium High Density). Excerpts from the Land Use Description Section Chapter 2 and Section 8, Natural Resources and Section 9, Mineral Extraction are provided below. Chapter 2 - Land Use Designations 3. 4. 5. 6. 7. Residential Medium High (RMH): Small farms, esfafes, and clustered residential subdivision; density determined by degree of clusteing and land preserued in open condition. Section I - Natural Resources /ssues *The county maintains high air quality standards, however there may be a propensity for air pollutants fo exisf in the western part of the county Goals 1. Ensure that natural, scenic, ecological, and critical wildlife habitat resources are protected and /or impacts mitigated. 4. Ensure the appropriate reclamation of land after extraction processes. Policies 1. The County will encourage and cooperate with the protection of citical habitat including sfafe and federally protected, threatened, or endangered species. Section 9 - Mineral Extraction Goals 1. Ensure that mineral extraction is regulated appropiately to promote responsible development and provide benefit to the general public. 2. Ensure that mineral extraction activities mitigate their effects on the natural environment, including air quality, water quality, wildlife habitat or i m porta nt v i su al resources. 3. ln working with mineral extraction projects, the county will protect the public health, safety and welfare of its citizens. Policies 2. Mineral resource extraction activities will protect critical wildlife habitat as identified by state and federal agencies. Development within fhese designations that cannot be designed, constructed and conducted so as to have a minimum adverse impact upon such habitat or fhese wildlife species shall be discouraged. 4. Facilities that are appurtenances to oil/ gas development activities (compressors, etc.) are considered appropriate in all land uses so long as they meet the respective mitigation requirements of the LUDC to maintain compatibility with surrounding land uses. Staff assessment of the above Comprehensive Plan elements supports a determination that the proposal is in general conformance with the Comprehensive Plan. The Application has also provided information on neighboring land uses indicating the general character of the arca. The request demonstrates general compatibility with adjoining uses provided proper mitigation is implemented and compliance with conditions and COGCC regulations maintained. 7-104 & 105. Source of Water & Waste Water Svstems The Application represents that the facilities will operated with minimal staff activity and a water supply is not required to operate the facility. Waste water/sanitation can be addressed by provision of portable toilets on site per OSHA standards. 7-106: Public Utilities The Application represents that the site is currently served by electricity. No other utilities are needed for operation of the facility. High Mesa Site 7-107: Access & Roadways The Application includes a Traffic Study which outlines the proposals impacts on neighboring County Roads used for access. Access to the site from lnterstate 70 utilizes County Roads 300 and 304. The study reflects minimal increases in traffic and concludes that the access is adequate for the use including acceptable site distances at the intersection of County Roads 300 and 304. The Application also includes an Engineering Analysis of the private section of access roadway by River City Consultants. The analysis is in response to Community Development Department policies related to waiver request to the Roadway Standards contained in Section 7-107. The study concludes that the private roadway is adequate for the servicing the compressor station and that the "functionality and safety of the roads are acceptable given the low speeds and vehicle types." The report also determines as follows: OIL & GAS OPERATIONS Well Pad = Red Triangle Pipeline = Blue Line a a a a The Roadway is regularly maintained. Maintenance includes dust control watering and application of Magnesium Chloride. No obvious safety issues were observed during the engineers site visit. The Roadway can accommodate the estimated traffic demand of approximately 100 vehicles per day. The Roadway comparison to Table 7-107 shows general consistency with standards with the exception of one section wlth 14% grades. Roadway alignment surveys provided with the Application shown only one curve location with less than a 50 ft. radius. All other curves meet the standard. The Report was prepared and stamped by a licensed professional engineer and is generally consistent with policies for approving adequacy of access and roadway waivers. 7-108: Natural Hazards The Application provides significant information on natural hazards including information on soils, geology, and slopes. The information supports a determination that the proposed use is not subject to significant natural hazard risks. The reports note minimal slope hazards and low hazards from soils issues. 7-109: Fire Protection The Application includes an Emergency Response Plan for the site that includes notification procedures and contact information. The Plan addresses a number of topics including fire prevention and emergency shutdown procedures. Referral comments from the Grand Valley Fire Protection District indicated no problems with the project. 7-201: Aqricultural Lands With no new disturbed areas no additional impacts on nearby agricultural lands are anticipated. The site is fenced to help avoid any potential conflicts. 7-202: Wildlife Habitat Areas The Applicant has provided an Environmental Effects Report (dated 312012) and a Protection of Wildlife Habitat Areas Report (dated 312012) both prepared by WestWater Engineering lnc. The reports concludes that "No threatened, endangered, or candidate species of wildlife or suitable habitat for these species exists within the survey area or would be affected by this project." The reports also provide a series of recommendation to mitigate impacts on wildlife which should be adhered to and included as a condition. The recommendations include limiting activities generally to daylight hours, particularly during winter months, use of bear proof trash containers, noxious weed control and re-vegetation. 7-203: Protection of Water Bodies Potential impacts on water bodies has been addressed by the Storm Water Management Plan (permit), drainage plans, and Spill Prevention Containment and Countermeasures Plans for the site. No water bodies are found on the site, however, protection measures will protect neighboring streams and drainages. 7-204: Drainaqe and Erosion (Stormwater) A drainage report for the site has been provided and addresses the existing drainage systems and several recommendations for upgrading and maintaining said systems. Both their high priority and lower priority recommendations should be implemented and included as conditions. Recommendations include: . Correction of slope erosion issues on the internal bench. . Cleaning an existing culvert. . Cleaning and removal of sediment from the lower sediment basin/detention pond . Replacement of an existing culvert with a larger diameter for easier cleaning and capacity improvement. The report and recommendations were noted in the referral comments from the County's consulting engineer. 7-205 Environmental Quality Protection of environmental quality is reflected in the stormwater, drainage and SPCC Plans for the site. ln addition air quality permits from CDPHE for the existing installations including compressor units were included in the application. 7-206: Wildfire Hazards The site is located in an area mapped with moderate wildfire hazard. The Emergency Response Plan includes policy and procedures applicable to fire prevention and operations in the event of a wildfire (i.e. shut down procedures). 7-207 Natural and Geoloqic Hazards The Geologic Hazard Report addresses a broad range of potential hazards including landside, rock fall, soils, alluvial fans and slopes. No significant hazards to the proposed facility were noted in the report and the site is not located within a flood plain. 10 EXCERPT FROM COUNTY GIS WILDFIRE HAZARD MAPPING Parabhute GREEN - LOWER HAZARD ORANGE & RED = HIGHER HAZARD 7-208. Reclamation The Applicant has included a reclamation plan that addresses re-vegetation and reclamation issues. The Applicant needs to provide documentation as to whether a reclamation bond with the State is in place for the facility or whether the facility is covered by a blanket bond from the operator. 7-301 & 302: Compatible Desiqn, Parkinq. and Loadinq The proposed use is consistent with and compatible with typical oil and gas compressor station with large areas of the site plan parking, circulation, and loading activities. 7-303: Landscapinq As an industrial use landscaping submittals and standards are not applicable to the proposal. 7-304: Liqhtino The Application represents that existing lighting has been installed and meeting the requirements of Section 7-304 for down directed, shielded lighting oriented toward the 1"1 lft{€, PoB" Oraalpthn of tfn Sound frlrasunnnflt Locghn HB#U A-Wt tiYtl(Stifrofi at 9{l!d Load} Elifd A.Wr. IEUEI d Statht et Fdl Ld.d lA- tlJl, Leu+l + CI5dEl Fos, 1 NE leas+d prof€rty boundpryl ffil {€€t NltlE of .Slaiion eile 4Ar dBA 4ZS dEA Poe.2 tflne€t lGirs*d proFert!/ bundary, I . t I I fu Et $f,sl of flalion slte 434 d8A 43 S dEA Table e Esfd Su.rnd LevEl of the Station at CIoEE€t Leased Eourdarres if the Station ulas op€rated f,t interior of the site. Lighting should be limited to emergency/safety lighting unless required for un-scheduled maintenance or repairs. 7-305 Snow Storaqe Adequate portions of the site plan are available for snow storage and can be accommodated by the drainage and storm water management plans. 7-306 Trails Trails standards are not applicable based on the industrial nature of the proposal and surrounding uses. 7-1001 INDUSTRIAL USE STANDARDS The Application represents that the facility will comply with all the lndustrial Use Standards contained in Section 1001 . The Application contains a variety of documents to support compliance and the following summary addresses key issues.o Visual impacts are mitigated by the remote location (i.e. distance and topography).o The facility meets the 100 ft. setback requirement.o Any product storage will meet setback requirements.o All industrial wastes will be property disposed of consistent with Federal, Stead and CDPHE requirements.. No other nuisances including vibration, glare, or fumes are anticipated from the facility. . A noise analysis has been provided and reflects that the facility when operating at full capacity will be in compliance with the CGCC noise limits. Staff understands the analysis is based on existing conditions including the existing enclosure of one compressor and the existing sound mitigation walls. Staff also understands that the results of the analysis eliminate the need for additional enclosures as shown on some site plan documents. EXCERPTS FROM APPLICANT,S NOISE STUDY Ful Capecity {i.e., alllCsmpres$or UriE atthe Sletion oreratrng}, 12 . The Application represents that noise control equipment packages including hospital grade mufflers and sound attenuating baffles are in use. Conditions should require that they will continue to be maintained on equipment at the facility.. Because of the nature of neighboring land uses and zoning the COGCC lower residential standard of 50 dBA has been applied for the site.o Noise has been a concern in vicinity of the High Mesa Compressor Station. Four existing compressor stations are located within the general area (High Mesa, two Williams Stations, and one Noble Station). SOUN D M EASUREM ENT MAPPI NG/LOCATIONS I(f, FErcAT€ &ffi6 i4E&IsE6EF5frY I tcr GFST FmmrY I sc ota t{oRrlt E|06 0F couFf{E*toE :t:i' ADDITIONAL STAFF ANALYSIS Subsequent to the previous application submittal, Staff confirmed with the County Building Department that building permit reviews were conducted on structures on the High Mesa site where applicable. 13 -t I I -i P@t,EftIY Ua€ Of tNCrM trEAlEo tn0pEirl-l \-- '': !'r- ( 1 V. SUGGESTED FINDINGS The following findings are suggested should the Board of County Commissioner's consider approval of the Limited lmpact Review. 1. That proper public notice was provided as required for the hearing before the Board of County Commissioners. 2. The hearing before the Board of County Commissioners was extensive and complete, that all pertinent facts, matters and issues were submitted and that all interested parties were heard at that meeting. 3. That for the above stated and other reasons the proposed Land Use Change Permit for the High Mesa Compressor Station, for Grand River Gathering - Summit Midstream is in the best interest of the health, safety, convenience, order, prosperity and welfare of the citizens of Garfield County. 4. That with the adoption of conditions, the application is in general conformance with the 2030 Comprehensive Plan, as amended. 5. That with the adoptions of conditions and granting of waivers from the roadway standards for road grade and turn radius from Table 7-107, the application has adequately met the requirements of the Garfield County Land Use and Development Code, as amended. VI. RECOMMENDATION The following conditlons are provided for the Board of County Commissioner's consideration regarding an approval of the Limited lmpact Review - Land Use Change Permit for the High Mesa Compressor Station, submitted by Grand River Gathering LLC and Summit Midstream in conjunction with Encana Oil and Gas (USA) lnc. 1. That all representations made by the Applicant in the application, and at the public hearing before the Board of County Commissioners, shall be conditions of approval, unless specifically altered by the Board of County Commissioners. 2. That the operation of the High Mesa Compressor Station shall be done in accordance with all applicable Federal, State, and local regulations governing the operation of this type of facility. Conditions Prior to lssuance 3. Prior to the issuance of the Land Use Permit, the Applicant shall provide confirmation that the site is covered by COGCC Bonding or other security acceptable to the County Attorney's Office for site reclamation. 1.4 4.Prior to issuance of the Land Use Change Permit the Applicant shall update the site plan to show all easements including pipeline easements accessing the facility. The Applicant shall also provide information on pipelines serving the facility confirming that they are properly permitted or exempt from permitting in accordance with the Land Use and Development Code. Other Conditions The Applicant shall maintain proper permitting and compliance with CDPHE Air Quality Regulations and Stormwater Discharge Regulations. Compliance with the Stormwater Management Permit and Best Management Practices for the site shall be required. The Applicant shall complete the recommended upgrades and repairs to the drainage system as recommended in the Drainage Report (dated 5123114) completed by River City Consultants. Both the high and low priority items shall be completed and notification provided to the County upon completion. The improvements shall be completed within 90 days of approval of the Land Use Change Permit. The Applicant shall comply with the wildlife habitat mitigations recommendations contained in the report by Westwater Engineering lnc. (dated 3112) and the CPW recommendations contained in their Referral comments (dated 717114) A waiver from the access standards contained in Table 7-107 is granted for maximum road grade and curve radius consistent with the Applicant's Report on Policy 04-01 Roadway Waivers completed by River City Consultants (dated 614114) and the roadway alignment surveys submitted with the Application. The Applicant's Noise Analysis estimates that the Facility will operate in compliance with COGCC Noise Standards. Should noise issues be raised in the future the Applicant shall complete a supplemental noise test to confirm compliance. Pursuant to said results, if additional noise mitigation is required to achieve compliance with COGCC standards the Applicant shall complete said additional mitigation. Noise control packages including hospital grade mufflers and sound attenuating baffles shall continue to be used on equipment at the facility. All equipment and structures associated with this permit shall be painted with non- reflective paint in neutral colors to reduce glare and mitigate any visual impacts. Portable toilet facilities will be provided for employees in accordance with OSHA requirements including during construction and for operations personnel. All exterior lighting shall be the minimum amount necessary or required by the building code or industry standards, and shall be directed inward and downward 7. 8. 5. 6. 10. 11. 12. L 15 13. 14. 15. 16. on the site. Lighting shall be shut off during nighttime hours except as necessary for operations, service activities, or building code requirements. The Applicant shall continue weed management on the site and comply with County Weed Control Regulations and the noxious weed management plan. Weed management shall include disturbed areas of the site outside the security fencing. The Applicant shall comply with the Dust Control Plan as represented in the Application, including mitigation for the access roadway including sections located off-site. The Applicant shall comply with all SPCC Plan provisions and shall keep the plan current and updated for any changes to the facility. 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Yls .r \.,P .-i L) ts- .F(D-<'D0J6? rcd5=E >.,b0 - , - -rF i< hnH ,a +..- g-rt }*{.rE,v= g tr3;€ 3 qp -: pE j tr co = F (s-0 -F stag i*+U E JE -,Ex 8o F'='e H q q d.F E.B E r"€T.i"9.'! go tUq iEE E iEf;qs#E it!eD$i-i d I mFIorntl-, il:n -L)tr '1C5o(uu:5F E 15(J trr q.J HqaL\r|A F \r,ilu E FF -0[JoM -^-ffi tutouNTAIN CROSS w3).:,1)-u-:*:',.:*;..:I'-e; EXHIBITf July 9,2014 Mr. Glenn Hartman Garfi eld County Planning 108 8th Street, Suite 401 Glenwood Springs, CO 81601 RE: Review of High Mesa Compressor:LIPA'7752 Dear Glenn: This office has performed a review of the documents provided for the Limited Impact Review Application of the High Mesa Compressor. The submittal was found to be thorough and well organized. The following comment was generated: o There are drainage recommendations provided within the drainage report that assesses the existing drainage patterns. These recommendations should be implemented. Feel free to call if you have any questions or comments. Sincerely Mpnt ai ll C r o s s " Engi ne e 1 A-'i-* ale, PE 826'/z Grand Avenue, Glenwood Springs, CO 81601 P: 970.945.5 544 F : 97 O.945. 5558 www. mountaincross-eng.com Glenn Hartmann From: Sent: To: Cc: Subject: Glenn, Rob Ferguson [opschief@gvfpd.org] Thursday, July 10, 2014 10:33 AM 'Tilda Evans' Glenn Hartmann; 'Lorne Prescott' RE: High Mesa Compressor Station The Fire District doesn't have any problems with this project from out end it is good to go. Rob Ferguson Deputy Fire Chief Grand Valley Fire Protection District 0124 Stone Quarry Road Parachute, CO 81635 Office 970-285-9119 Fax 970-285-9748 opschief@svfpd.org From: Tilda Evans Imailto:tevans@olssonassociates.com] Sent: Wednesday, July 09, 2014 4:23 PM To: opschief@gvfpd.org Cc: Glenn Hartmann Subject: High Mesa Compressor Station This message contains attachments delivered via ShareFile. .GRG High Mesa CS LlR.pdf . NTC Response.pdf Download the attachments by clickinq here. Rob and Glenn, I believe this will serve your needs. Please let me know if you have problems downloading the files. Thanks, Tilda Evans I Land Development I Olsson Associates 760 Horizon Drive, Suite 102 lGrand Junction, CO 81506 ltevans@olssonassociates.com TEL 970.263.7800 | DIRECT 970.263.6015 | CELL 970.683.8879 I FAX 970.263.7456 ffio|-{FP-Hy E ffi m ;.t etease consider the environment before printing this e-marl EXHIBlT toGlenn Hartmann From: Sent: To: Cc: Subject: Warren - DN R, M ichael [michael.warren@state.co. us] Monday, July 07, 2014 3:05 PM Glenn Hartmann Scott Hoyer - DNR; JT Romatzke - DNR; Michael Warren - DNR Comments for the High Mesa Compressor Station Glenn, Colorado Parks and Wildlife (CPW) has reviewed the Garfield County land use application (LIPA 7752),the High Mesa Compressor Station. The location is mapped as mule deer critical winter range and elk winter concentration ilrea. The project site is located in an area that has extensive energy development and infrastructure support facilities. The compressor station is located such that additional impacts will not be extensive. CPW recommends that Garfield County include the following BMPs in the permit conditions of approval. 1 Develop and implement an aggressive, integrated, noxious and invasive weed management plan. 2) Use only certified weed-free native seed in seed mixes, unless use of non-native plant materials is recommended by CPW. 3) Do not include aggressive, non-native grasses (e.9., intermediate wheatgrass, pubescent wheatgrass, crested wheatgrass, smooth brome, etc.) in reclamation seed mixes. Site specific exceptions may be considered Re Reclaim mule deer and elk habitats with native shrubs, grasses, and forbs appropriate to the ecological site disturbed (sagebrush with juniper). 5) Muffle or otherwise control exhaust noise from compressors so that operational noise will not exceed COGCC standards, Rule 802.(C). Please let me know if you have questions or would like to discuss any of the recommendations. Thanks Michael Warren Energy Liaison Northwest Region EXHIBIT 4 Oil & Gas Liaison Kirby Wynn Memorandum July 15, 2014 RE: LIPA-7752 O&G Liaison Referral: High Mesa Compressor Station Dear Glenn, Application is for an existing compressor station. No additional compressors are proposed within the information provided. ln the remote area of the compressor station, potential noise nuisance issues would be a primary concern. Sound-measurement data indicate the facility is operating within current regulatory thresholds. I reviewed my records and found no noise complaints received by my office related to operation of the High Mesa Compressor station dating back to 2011. t' EXHIBIT lb Gadield Cou Vegetution Manugement July 16,2014 Glenn Hartmann Garfield County Community Development Department RE: High Mesa Compressor Station LIPA-7752 Dear Glenn, The lmpact Analysis section addresses noxious weeds. The site is an existing compressor station and will be in long term use; af so it appears any temporary reseeding would be less than la acre, so for both reasons a revegetation security is not required. Please let me know if you have any questions. Sincerely,/t#4 Steve Anthony Garfield County Vegetation Manager 0375 CountY Road 352, Bldg 2060 Rifle, CO 81650 Phone: 970-945-1377 x 4305 Fax: 970-625-5939 State of 0olorado 0onserv KNOWALL PERSONS BY THESE PRESENTS, That we,Grand RLver Gathering, the Coun$ of in the State of as prineipals, NOW THEREFORE, lf the above bounden principals shall comply with all of the provisions of the laws of the State of Colorado and the rules, regulations and requirements of the Oil and Gas Conservation Commission of the State of Golorado, with reference to properly plugging of said well or wells; with reference to land damages and the restoration of the land, as nearly as possible, to its condition at the beginning of the lease; with reference to seismic operations the proper surface restoration and plugging of any shot holes, then this obligation is void; otherwise, the same shall be and remain in full force and effect. \A/itness our hands, this 27th day of October , ZOLI Pfincipal: orua niver eatueriag, r,r,c Address: City:State: Zip: Fax:Phone: Signed: Name Printed; Jay Nix Witness our hands, this 27th day of October , ZOLL -. SUfety: r,iberty t'rutual raBurapce compauy AddfgSS: 12750 !4ex1t Drlve, sul.te 710 CitY: o.rr.e Siate: rx Zip: tszst PhOne: (s721 233-esss FaX: tgtz) 233-L977 Signed: of and Lib"tv M"t""I r""' , as suretyputhorized to do business in tne State of Colorado,areheldherebyandfirmlybounduntotheStateofColorado,inthepenalSumof($50,@), Fif,t'v thousand & 00,/100-------- Dollars, lawful money of the United States, forthe faithful paymentof which we hereby bind ourselves, our heirs, executors, administrators and assigns. Nameprinted: D. N. Broyles, Attorney-In-Fact /40frffilffi*"Y Oil and Gas 1 120 Lincoln Street. Suite 801. Denve ation 0ommission FoR 00cc PERFORIUANCE BOND BOND NO:02203]-96t This bond is a perpetual instrument which shall remain in force and effect until all obligations have been met and the bond is released by the Golorado oil and Gas conservation commission. surety Provlcler No: OGCC Oper. No:FATS No: The condition of this obligation is that whereas the above bounden principals propose the following oil and gas on lands situated in the State of Golorado, tr tr tr tr V Type of Bond Plugging Surface Seismic E&P Waste Facilty Downstream Gas Facilities Coverage Blanket lndividual E Plugging l well E Surface for 1 well n lnigated E Non-irrigated l-l e*.*r. lnactive Wetts Location Complete for lndividual Bonds Well Name and Numbe[ Owner of lands where off-site land-treatment facility is located: QtrQtr, Sec, Twp, Rng, Meridian: Approved: Director, Oil and Gas Consewation Commission Bond Release Approved: Release Date: County: Project Descri ption Grand River Gathering (GRG) has submitted a Limited Impact Review application to permit the existing 8-unit High Mesa Compressor Station (HMCS). The facility was originally constructed by Encana Oil & Gas (USA) and provides a means for the flow of natural gas from an existing field to a broad system of transmission lines. The HMCS compressor station was constructed prior to Garfield County requiring Iand use permits for compressor stations. The HMCS was acquired by Grand River Gathering tn 2011 . O\oLSSoN* ASSOCIATES This application is intended compliance with the current No new construction or soil Project Descri ption (cont.) to bring the existing facility into full Land Use and Development Code disturbance is anticipated. O\oLSSoN* ASSOClATES Location Approximately 4 miles southwest of Parachute Located on private land O\oLSSoN, ASSOCIATES Road Access Accessed via County Roads 300 and 304 from the West Parachute lnterchange O\oLssoN, ASSOCIATES Site Plan., ' \* a 1---..-.':y..,! \#--,-ttf.:-"-,',' \I '.r1 \. -#i'\' t\ l. ' i xi..., \ ,l:.lr rr( LEiI s 1,;;:::11 - ' '/i' '':' ':' ti, I /t,/'-2.----. \,,'\ ) ..'r !.._----"--;_w- O\oLSSoN, ASSOCIATES Noise Study Relationship to COGCC Regulations COGCC Aesthetic and Noise Control Regulations Section 802.c (1), which states: Woise levels from oil and gas facilities /ocated on surface property owned, leased, or otherwise controlled by the operator shall be measured at three hundred and fifty (350) feet or at the pronertv line. whichever is greater." O\oLSSoN, ASSOCIATES Noise lmpacts Data Gatheri ng and Analysis To verify the current Station sound level contribution at the property boundary, sound tests were conducted during Station operation at the closest "leased" property boundaries (i.e., NE boundary and west boundary). Seven of eight compressors were operating during the data gathering During typical operations only three or four compressors will be operating at any time O\oLSSoN. ASSOCIATES Noise Study Figure 1 Position 1 is the closest property bound ary to the north with Daybreak Realty approximately 861 feet from Compressor Station (CS) Position 2 is at east boundary with BLM approximately 1,111 feet from the CS Klebold property shares east boundary approximately 1,233 feet from CS EBMHEHBWAB FSGLIE ALOH6WST soE *remw Flgure 1 --1-..1W .-1.._-.;a:' "t-- -=j ffiWUEtrru(1EASDffir) \ MIISE$MTE 0ao@ High Me€a Station: Area Layout shor,virE the Staiion, 'Leased PIoperty Boundary (i.e., Ercana Property Eloun&ry) and CfE6en Sourtd Measurernerl P6iliorE at the Closest 'Leas€d" hoperty BounGrie€ (Ncie: existirE topograptry not shown on this Figure). O\oLSSoN* ASSOCIATES I (l-) l tclo€slmffiryN G iIORTH 90€qcmGss Total Noise Output . Since the Station was only operating at 90% of full capacity during the sound suruey, the measured Station sound contribution was extrapolated to represent the maximum sound level if all station compresso r units were operated at full capacity. . The March 2014 Sound Survey report by Hoover & Keith concluded that the sound level at the HMCS is equal to or lower than the sound level limits specified by the COGCC for this type of facility. . Also noted in the final report: "....the Station sound level at other more distant property boundaries should be equal to or less than the measured Station sound level at these closest "leased" property boundaries." O\oLSSoNu ASSOCIATES Noise Study Data Summary Meas'd & Est'd A-Wt. Sound Level at the "Leased" Pro Boundaries duri * Since the Station was operated at 9006 of full load during the sound survey, 0.5 dB was added to the measured A-wt. sound levels to estimate the Station sound level if operated at ful! capacity. O\oLSSoN, Descrlptlon of the Sound Measurement Locatlon Meas'd A-Wt. Sound Level 0% Load) Est'd Sound Level of Statlon at Full Load 42.6 dBA*NE "Leased' Property Boundary: 851 feet NNE of Station West "Leased' Property Boundary: 1 ,111 feet u,est of Station ASSOCIATES Gonditions 1& 2 1. That all representations made by the Applicant in the application, and at the public hearing before the Board of County Commissioners, shal! be conditions of approval, Uhless specifically altered by the Board of County Commissioners. GRG will comply with this Condition. 2. That the operation of the High Mesa Compressor Station shall be done in accordance with all applicable Federal, State, and local regulations governing the operation of this type of facility. GRG will comply with this Condition. O\oLSSoN, ASSOClATES Conditions 3 & 4 3. Prior to the issuance of the Land Use Permit, the Applicant shall provide confirmation that the site is covered by COGCC Bonding or other security acceptable to the County Attorney's Office for site reclamation. GRG will comply with this Condition. 4. Prior to issuance of the Land Use Change Permit the Applicant shall update the site plan to show all easements including pipeline easements accessing the facility. The Applicant shall also provide information on pipelines serving the facility confirming that they are properly permitted or exempt from permitting in accordance with the Land Use and Development Code. GRG will comply with this Condition. O\oLSSoN* A S S O C I AT E S Conditions 5 & 6 5. The Applicant shall maintain proper permitting and compliance with CDPHE Air Quality Regulations and Stormwater Discharge Regulations. Compliance with the Stormwater Management Permit and Best Management Practices for the site shall be required. GRG will comply with this Condition. 6. The Applicant shall complete the recommended upgrades and repairs to the drainage system as recommended in the Drainage Report (dated 5123114) completed by River City Consultants. Both the high and low priority items shall be completed and notification provided to the County upon completion. The improvements shall be completed within 90 days of approval of the Land Use Change Permit. GRG will comply with this Condition. O\oLSSoNu ASSOCIATES Gonditions 7 & I 7. The Applicant shall comply with the wildlife habitat mitigations recommendations contained in the report by WestWater Engineering lnc. (dated 3112) and the CPW recommendations contained in their Referral comments (dated 717114). GRG will comply with this Condition. 8. A waiver from the access standards contained in Table 7-1 07 is granted for maximum road grade and curve radius consistent with the Applicant's Report on Policy 04-01 Roadway Waivers completed by River City Consultants (dated 614114) and the roadway alignment surveys submitted with the Application. No response required. O\oLSSoN. A S S O C IAT E S Condition 9 9. The Applicant's Noise Analysis estimates that the Facility will operate in compliance with COGCC Noise Standards. Should noise issues be raised in the future the Applicant shal! complete a supplemental noise test to confirm compliance. Pursuant to said results, if additional noise mitigation is required to achieve compliance with COGCC standards the Applicant shall complete said additional mitigation. Noise control packages including hospital grade mufflers and sound attenuating baffles shall continue to be used on equipment at the facility. GRG will comply with this Condition. O\oLSSoN* ASSOCIATES Gonditions 10 & 11 10. All equipment and structures associated with this permit shall be painted with nonreflective paint in neutral colors to reduce glare and mitigate any visual impacts. GRG will comply with this Condition. 11. Portable toilet facilities wil! be provided for employees in accordance with OSHA requirements including during construction and for operations personnel. GRG will comply with this Condition. O\oLSSoN, ASSOCIATES Gonditions 12 & 13 12. All exterior lighting shall be the minimum amount necessary or required by the building code or industry standards, and shall be directed inward and downward on the site. Lighting shall be shut off during nighttime hours except as necessary for operations, service activities, or building code requirements. GRG will comply with this Condition. 13. The Applicant shall continue weed management on the site and comply with County Weed Control Regulations and the noxious weed management plan. Weed management shall include disturbed areas of the site outside the security fencing. GRG will comply with this Condition. O\oLSSoN* ASSOCIATES Conditions 14, 15, & 16 14. The Applicant shall comply with the Dust Control Plan as represented in the Application, including mitigation for the access roadway including sections located off-site. GRG will comply with this Condition. 15. The Applicant keep the plan GRG will comply shal! comply with all SPCC Plan provisions and shal! current and updated for any changes to the facility. with this Condition. 16. Future construction or replacement of equipment shall require building permits as applicable and shall have foundation designs engineered to address soils constraints. GRG will comply with this Condition. O\oLSSoN* ASSOCIATES