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HomeMy WebLinkAbout1.0 ApplicationDale: APPLICATION SPECIAL/CONDITIONAL USE PERMIT October 7, 1996 Applicant:Snyder Oil Corporation / Southeast Piceance Pipeline Joint Venture Address of Applicant: 400 7th Street South, Suite 1200, Rifle CO 81650 Special/Conditional Use: Natural Gas Compressor Legal Description: See Exhibit "A" Practical Description (location with respect to highways, county roads, and residences): North of Highway 6, east of the intersection of Highway 6 and 1-70 near rhe me-14ring facilities of Ouestar and Public Service Company of Colorado. Requirements:r 1. Plans and specifications for proposed use (hours of operation, number of vehicles/day, location and size of structures, etc.). 2. Existing or proposed method o[sewage, source of disposal and water. Road access and other information deemed necessary to explain proposed use. A vicinity map drawn to scale depicting the subject property, location, and use of building and structures on adjacent lots. 4. An impact statement on the proposed use where required by Sccl ions 5.03-5.03.12 of Zoning Regulations. 5. A copy of Assessor's map showing properly; and a listing of all adjoining property owners of said property. 6. A base fee of $ `far.° shall be charged for each application and shall be submitted with the application, additional charges may be imposed if county review costs exceed the base fee. 7. Attach a copy of proof of ownership for your property (deed, title insurance). If public notice is required, notice provided by the Planning Department shall be sent out at least fifteen (15) days prior to hearing by return -receipt mail to all the above noted adjoining property owners. Mailing is the applicant's responsibility and proof of nailing must be presented at the hearing. Additionally, thesamenoticeshall be published one (I) time in theoflicial County newspaper at least fifteen (15) days prior to such hearing dale Applicant shall bear the cost of publication and be responsible for presenting the "Proof of Public:1110n" at the hearing. The above information is correct to the best of my knowledge. Applicant /0-7-9G Date SUM Snyder Cil Corporation October 8, 1995 Mr. Mark L. Bean Planning Department Garfield County, Colorado 109 8th Street, Suite 303 Glenwood Springs, Colorado 81601 Re: Special Use Permit - Rifle Compression Site • Dear Mr. Bean, 400 7th St. South Suite 1200 Rifle, Colorado 81650 970/625-4209 970/625-4636 Fax Snyder Oil Corporation / Southeast Piceance Pipeline Joint Venture (SOCO) is applying for a Special Use Permit to install a natural gas compressor and associated equipment in Garfield County, Colorado. The facility will be installed on property that SOCO has a Surface Facility Easement Grant with Bill Clough of Rifle, Colorado. This property is located west of Rifle near the facilities owned by Questar, Public Service Company of Colorado and Williams Field Services. This property is near the end of SOCO's 12" natural gas pipeline that terminates at the Gas Plant and Conditioning Facility operated by Public Service Company of Colorado. The following documentation is enclosed herewith for your review: Application Form Exhibit "A" - (property description) Exhibit "B" - (names and addresses of property owners) Air Pollution Emission Permit - Colorado Department of Health Assessors Map Subsurface Soil Report Survey of the site Drawings and Specifications of the facility Noise Assessment for the facility Surface Facility Easement Grant Letter of Authorization from W.F. Clough Right -of -Way Grant (Roadway) Fire Control Measures Check in the amount of $425.00 for application fee As you may recall, SOCO has an existing compressor on this site. The additional compressor is needed to accommodate expected increases in gas production from the SOCO Grass Mesa and Hunter Mesa units as development of these units progress. Installation of central dehydration at the Rifle compressor site will allow SOCO to stop installing field dehydration units at now wells as well as remove approximately 30 existing field dehydration units from operation. This step will reduce development expense, lower fuel usage and other operation costs associated with gas dehydration and significantly reduce overall air emissions from gas dehydration. The installation of a compressor and accompanying equipment for producing instrument and compressor starting air will eliminate fugitive emissions and other concerns currently associated with using line gas for these purposes. Should gas production increase to a point where fugitive emissions from routine liquid recovery operation become significant it may become necessary to install a vapor recovery unit at the site to return these emissions to the gas pipeline. Access to the compressor site is north of Highway 6 to 264 Rd.. (please refer to Right -of -Way Grant). On June 17, 1996, a subsurface soil report on the core samples of the area were conducted to test for compaction. This will help us determine the type of foundation that will be needed to set the compressor. When this site is abandoned, it will be reclaimed with vegetation indigenous to the area. To address Garfield County Zoning Resolutions, conclusions are submitted as follows: Installation and operation of the equipment will not have any adverse impact on existing lawful use of water through depletion or pollution of surface run-off, stream flow or ground water. No water is required to operate the facility. Installation will be on property owned by W.F. Clough. There will be no long term adverse impact on adjacent land from the generation of vapor, dust, smoke, noise, glare, vibrations or other emanations. Impact on wildlife and/or domestic animals will be minimal. No migration routes are being changed or obstructed. The facility site will be completely fenced after installation. Construction personnel in the area will add to overall traffic on a short term basis during installation. Upon completion, traffic will return to prior levels. SOCO and/or Tidewater Compressor employees will check the facility on a daily basis. No adverse impact to abutting property will occur due to the facility operation. The area already mainly consists of pipeline facilities such as Questar, Williams Field Services and Public Service Company of Colorado. We believe the information and materials submitted herein satisfy the requirements to issue the special use permit. Please contact me if any additional information is needed. Mark L. Wilson SPILL PREVENTION CONTROL & COUNTERMEASURE PLAN PART I GENERAL INFORMATION 1. Name of Facility: SOCO - Piceance Basin Compression Facility 2. Type of Facility: om ression/Liquid Bandline Facility 3. Location of Facility SENE Section 13. T6S-R94W Garfield County. Colorado 4. Name and Address of Owner or Operator: Name: Snyder Oil Corporation Address: 1625 Broadway Suite 2200 Denver. C 80202 5. Designated Person Accountable for Oil Spill Prevention at Facility: Name: Gary Cook Title: Pipeline Operator 6. Facility experienced a reportable oil spill event during the twelve months prior to 1-10-74 (effective date of 40 CFR, Part 112). No (If YES, complete Attachment 91.) MANAGEMENT APPROVAL y�ThisSPCCPlan wjll be implemented as herein described. Signature: Name: Mark McNamee Title: Gas Operations Manaper CERTIFICATION I hereby certify that I have examined the facility, and being familiar with the provisions of 40 CFR, Part 112, attest that this SPCC Plan has been prepared in accordance with good engineering practices. (Seal) . Date: Mark D. McNamee Printed Name of Professional Engineer Signature of Registered Professional Engineer Registration No. 24788 State Colorado 10."23/96 L0:36 T 303 592 36011 SNYDCR OLL CORP. .+» RiFLl PART I GENERAL INFORMATION 7. Potential Spills - Prediction and Control: 141 UUL Rates of issuance may vary due size of orif ce and pressure on vessel. 8. Potential Spills - Prediction and Control: The reasonable expected modes of major failure or accident which condensate could be spilled from the facility are the following: A. Storage Tank Leak and Failure I. Rate of flow: Variable - depends on the size and location of the tank failure. ii. Total quantity of condensate which could be discharged: The total quantity of condensate that could be discharged would not exceed the working capacity of the largest tank which is 714 barrels. B. Tank Overflow I. Rate of flow: Can range from 0-75 Barrels of Condensate per day, based on the maximum delivery rate into tank battery array. ii. Total quantity of condensate which could be discharged: Variable. The total quantity spilled in proportional to the length of time the tank is overflowing. C. Condensate Hauling Truck Loading Area Spill Condensate at this facility is normally transported by truck. In the condensate hauling truck loading area, there is potential for the truck compartment to overflow while being filled. Another failure mode could occur when the loading system piping is parted or broken off during condensate transfer from tank to truck compartment. 1. Rate of flow: The flow rate, if the truck compartment overflows, is approximately 492 BPH. The maximum rate of flow, if a loading system component is accidentally broken off while loading is approximately 714 BPH. Name of Facility: SOCO - YICEANCE BASIN COMPRESSOR-Y<ACILITY llneratnrr Snyder Oil Cnrnnration Page 2 a0 2C 'Pa 1 .tore, i.' ,r A --e : a 8 t , �.»: ri'eYti;, .. 0P,!4,:. A 0onli4u!,`k :e.. CondensateStock Tank Rupture/Ovcdlow 714 1-714 Varies Genn WaterTank RupturelOverflow 80 1-80 Varies None Separator Rupture Varies varies Varies None Flnwline RnnLue Varire varies Varies None Rates of issuance may vary due size of orif ce and pressure on vessel. 8. Potential Spills - Prediction and Control: The reasonable expected modes of major failure or accident which condensate could be spilled from the facility are the following: A. Storage Tank Leak and Failure I. Rate of flow: Variable - depends on the size and location of the tank failure. ii. Total quantity of condensate which could be discharged: The total quantity of condensate that could be discharged would not exceed the working capacity of the largest tank which is 714 barrels. B. Tank Overflow I. Rate of flow: Can range from 0-75 Barrels of Condensate per day, based on the maximum delivery rate into tank battery array. ii. Total quantity of condensate which could be discharged: Variable. The total quantity spilled in proportional to the length of time the tank is overflowing. C. Condensate Hauling Truck Loading Area Spill Condensate at this facility is normally transported by truck. In the condensate hauling truck loading area, there is potential for the truck compartment to overflow while being filled. Another failure mode could occur when the loading system piping is parted or broken off during condensate transfer from tank to truck compartment. 1. Rate of flow: The flow rate, if the truck compartment overflows, is approximately 492 BPH. The maximum rate of flow, if a loading system component is accidentally broken off while loading is approximately 714 BPH. Name of Facility: SOCO - YICEANCE BASIN COMPRESSOR-Y<ACILITY llneratnrr Snyder Oil Cnrnnration Page 2 PART I GENERAL INFORMATION ii. Total quantity of condensate which could be discharged: The total quantity of condensate which could be discharged is the largest compartment on a tank truck, which is not expected to exceed 222 barrels for any condensate hauling truck utilized in the operation. iii. Direction of flow: Condensate spilled from a truck related failure would flow in a southemly direction and would be noted immediately by truck loading personnel. D. Separator Failure I. Rate of flow: Variable. Depends on the size of separator and mode of failure. Maximum possible rate of flow expected from a separator failure could range from 5 - 10 BPD plus fluid volume of vessel above elevation of rupture. ii. Total quantity of condensate that could be discharged: Variable, depending on rate of flow entering the separator and the location of a separator failure. The maximum potential release would not exceed the quantity noted in Section D (I).. Hi. Direction of flow: Variable, depending on the location of the leak. E. Piping Failure I. Rate of flow: Variable, depending on size and location of a piping related failure. Maximum expected potential rate of flow could range from 0-75 BPD. Personnel routinely perform visual inspection of piping and buried flowline right-of-ways to detect any failures. ii. Total quantity of condensate that could be discharged: Variable. The total quantity spilled is proportionate to the size of rhe leak and the length of time the leak has gone undetected. iii. Direction of flow: Variable, depending on the location of the leak. 9. Containment or diversionary structures or equipment to prevent condensate from reaching navigable waters are practicable. Yes (If NO, complete Attachment #2) 10. Inspections and Records A. The required inspections follow written procedures. Yes B. The written procedures and a record of inspections, signed by the appropriate supervisor or inspector are attached. Yes The following items are inspected to minimize condensate discharges from occurring, tanks for leaks and corrosion, separation vessels for leaks and corrosion, sight glasses for leaks, pumps for leakage around packing glands, lines for leaks around fittings, flowlines for leaks. A record of inspections is maintained with the SPCC Plan. If problems are identified, prompt action is taken Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR FACILITY r)neratnr• Snyder Oil Corporation Page 3 10/28/96 10:57 X303 592 8600 SNVI)GR OIL CORP. 4,, (RIFLE V9004 PART I GENERAL INFORMATION for repairs. A record of inspection is to be kept with the SPCC Plan for at least 5 years. Attached #4 is the written inspection procedure. 11. Personnel, Training and Spill Prevention Procedures A. Personnel are properly instructed in the following: (1) Operation and maintenance of equipment to prevent condensate discharges, (2) Applicable pollution control laws, rules and regulations. Yes Yes Describe procedures employed for instruction: Company and contract personnel attend in-house compliance awareness programs every year. In addition, spill related topics are discussed at safety meetings. Topics include: spill control equipment; equipment operation and maintenance; inspection of containment structures, vessels, tanks and piping; spill response containment and clean-up; company policies on reporting and responding to spills and specific SPCC Plans. B. Scheduled prevention briefings for the operating personnel are conducted frequently enough to assure adequate understanding of the SPCC Plan. Yes Describe briefing program: SPCC compliance awareness program is given on a annual basis. The program includes a review of specific SPCC Plans, updates on state and federal regulations, company policy and procedures and spill reporting. - Additional short briefing sessions are held as needed before and during certain jobs to review spill potential, necessary precautions and probable responses. A copy of the Training Record Form is attached. Name of Facility: SOCO=rSEANrE BASIN COMPRESSOR. _.CILITY Operator: Snyder Oil Corporation Page 4 PART II, ALTERNATE B DESIGN AND OPERATING INFORMATION ONSHORE OIL/CONDENSATE PRODUCTION FACILITY A. Facility Drainage I. Drainage from diked storage areas is controlled as follows (include operating description of valves, pumps, ejectors, etc.): Drainage from secondary containment structures is through a drain line which has a manually operated valve. The valve is locked and bull plugged on the outside of the dike.' For dikes which have no drain line, drainage of stormwater is by manual, automatic pump or vacuum trucks. All condensate and produced water is returned to separation vessels for treatment or removed to a permitted disposal facility for proper disposal. No condensate or produced water is discharged into the environment. 2. The procedure for supervising the drainage of rain water from secondary containment into a storm drain or an open watercourse is as follows (include description of (a) inspection for pollutants, and (b) method of valving security). (A record of inspection and drainage events is to be maintained on a form similar to Attachment #3): Manually operated valves on dnainlines have the handle or wheel removed or locked and the line is bull plugged wrench tight. Before drainage occurs, the accumulated stormwater is visually inspected for condensate. If stormwater is not contaminated, the water is discharged. If condensate or produced water is present, the stormwater is not discharged but Is removed by vacuum truck and transported to a permitted disposal facility. Facility personnel are present at all times during stormwater discharge. Records of each discharge will be maintained with the SPCC Plan. 3. Field drainage ditches, road ditches and condensate traps, sumps or skimmers, if such exist, are inspected at regularly scheduled intervals for accumulations of condensate. Yes Describe inspection procedures, intervals and methods employed to remove condensate: Drain ditches in and around the facility and roadside ditches within the field are visually inspected by the lease operator each day they are at the facility. If pollution or evidence of a spit is detected, the source will be found and stopped. The ditch will be isolated by constructing an earthen dam or other suitable containment and the condensate or other pollutant will be removed by vacuum truck or as appropriate. The material will be either re -Introduced into the treatment system or transported to a permitted disposal facility. B. Bulk Storage Tanks 1. Describe tonic design, materials of construction and fail-safe engineering features: Condensate storage tank.s are cylindrical in shape, constructed of steel to API specifications. Some tanks are painted to prevent corrosion. The total volume of the tanks are sufficient for normal inflow rates considering time between lease operator visits. The 300 bbl Tanks are Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR FACILITY rinpratnr• .Qnvder Gil Cnrnnratinn Page 5 10/Y5/96 0:58 ^p a03 592 5600 SNYDER OIL CORP. .++ RIFLE L Ueti PART II, ALTERNATE B DESIGN AND OPERATING INFORMATION ONSHORE OIL/CONDENSATE PRODUCTION FACILITY equipped with equalizer lines of adequate size for normal inflow rates and for overflow protection an over pressure or relief valve may be present in addition to hatches to protect against excessive internal pressure. The 30,000 gallon tank has relief valves. 2. Describe secondary containment design, construction materials and volume: Firewalls or dikes are generally constructed of locally available soil with side slopes of approximately 45°. Volume is sufficient to contain the volume of the single largest tank plus a sufficient allowance for precipitation. 3. Describe tank examination methods and procedures: Lease operators visually inspect the exterior of each tank for indication of leaks during their daily visit to the facility. In addition, they also visually examine clean-out plates, valves and connections. If an indication of a leak is found, the tank will be repaired as necessary. If repairs cannot be accomplished, the fluid inside the tank is removed and the tank is dated for repair. If valves or connections are leaking, repairs will be made as operations permit. Interior inspections for corrosion of the tank are conducted anytime the tank is out -of -service for cleaning or repair. C. Facility Transfer Operations 1. Describe scheduled basis for examinations of above -ground valves and pipelines and salt water disposal facilities: Above ground valves are inspected by the lease operator during daily visits. Valves and fittings with excessive wear and damage or those which are severely corroded are replaced as operations permit. 2. Describe flowline maintenance program to prevent spills: The use of corrosion and/or scale inhibitor, internally and/or externally, coated and wrapped lines, cathodic protection, and bi-lo pressure shut -down systems are used as indicated by expectations and/or experience. When buried flowlines are uncovered they are inspected for signs of corrosion. If inspection of flowlines indicates corrosion, the flowline or portion of the flowline will be replaced. From time to time the flowline may be pressure tested to test the integrity of the line. The lease operator, as time permits, wfl walk Bowlines to visually check for leaks. The pressure test and visual inspection of the flowlines will be documented on the attached flowline inspection forms. Name of Facility: SOCO-`PICEANCE BASIN COMPRESSOR---sCILITY nneratnr• Snyder Oil Corporation Page 6 PART II, ALTERNATE B DESIGN AND OPERATING INFORMATION ONSHORE OTL/CONDENSATE PRODUCTION FACILITY D. Oil Drilling and Workover Facilities I. A blowout preventer (BOP) assembly and well control system is installed before drilling below any casing string and, as required during workover operations. Yes 2. The BOP assembly is capable of controlling any expected wellhead pressure. Yes 3. Casing and BOP installations conform to state regulations. Yes Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR FACILITY Oneratnr: Snyder Oil Corporation Page 7 10/23/96 10:59 '5303 592 8600 (Complete this form for any months prior to January 10, navigable water.) 1. Date Volume Cause: Corrective action taken: SNYDER OIL CORP. RINLE WJ UU0 SPCC PLAN, ATTACHMENT #1 SPILL HISTORY reportable spill(s) which has (have) occurred from this facility, during the twelve 1974 into Plans for preventing recurrence' 2. Date Volume Cause: Corrective action taken: Plans for preventing recurrence: 3. Date Volume Cause: Corrective action taken: Plans for preventing recurrence: Name of Facility: SOCO---PTCEANCE BASIN COMPRESSOL _ ACILITY Oneratnr: Snyder Oil Corporation Page 8 LEI vvo SPCC PLAN, ATTACHMENT N2 OIL SPILL CONTINGENCY PLANS AND WRITTEN COMMITMENT OF MANPOWER Secondary containment or diversionary structures are impracticable for this facility for the following reasons (attach additional pages if necessary): This facility has a suitable secondary containment for the tank battery. The facility does not have any containment for the Bowlines from the wells to the tank battery because it is cost prohibitive. Containment structures for the Bowlines cause excessive interference with agricultural and other use for the land, cause strained relations with landowners, interfere with normal drainage, cause erosion, use scarce topsoil, and in general,result in more damage to the ecology than would a possible Bowline leak (which will be properly remediated). A strong condensate spill contingency plan is attached. A written commitment of manpower is attached. Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR FACILITY flneratnr Snyder Oil Cornoration Page 9 10/23/96 IL:OO b303 592 3000 SNYUEK OIL CUM'. 444 RIFLE WJ.OLu MANPOWER COMMTH%4ENT Snyder Oil Corporation is committed to a strong antipollution and spill prevention program. We are committed to designing and operating our facilities in a manner that will minimize the size and occurrence of spills. We are committed to a strong, pro -active training and inspection program that will insure that our facilities are operated and maintained in a manner that will prevent or minimize the occurrence of spills. In the event of a spill, Snyder Oil Corporation wilt use whatever manpower, equipment and material that will result in the spill being cleaned up in the minimum time, with a minimum of environmental damage and the maximum recovery of the spilled material practicable. Name of Facility: SOCO -NYICEANCE BASIN COMPRESSOR' ACILITY Operator: Snyder Oil Corporation Page 10 10.28/96 II:01 tl303 592 8600 SNIDER OIL CORP. -+»• RIFLE SPCC PLAN, ATTACHMENT #4 INSPECTION PROCEDURE AND RECORD OF INSPECTION 10 012 The lease operator or roustabout gang, in the course of their normal daily routine, are responsible for inspecting the facility covered by the SPCC Plan. This daily review is to insure that the facility is operating properly and that no problems exist. In addition to daily observations made by lease personnel in their routine activities, an inspection of this facility will be conducted on an annual basis to insure that the facility is in compliance with the SPCC Plan. From time to time, a comprehensive inspection of this facility will be made by a lease inspection team and by the environmental engineer. The following is a general guideline for inspecting facilities. There may be specific items covered in the Plan that are specific to a facility and may not be covered by these general guidelines. Conversely, certain items covered by these procedures may not apply to every facility. Federal and state regulations require that inspections are documented and the inspector must sign that the required inspections were made. The attached SPCC Inspection Log is to be used to documentthe annual inspections, and all other comprehensive inspections. THE FOLLOWING ITEMS (if present) MUST BE INSPECTED: Ditches and Waterways Drainage ditches in and around the facility and within the field, roadside ditches, water courses, ponds, etc. will be inspected for condensate accumulations and/or evidence of saltwater spills. Above Ground Piping Flowlines, injection lines, gathering lines, gas lift lines, and other piping in and around batteries, separation facilities, saltwater handling facilities, etc. will be inspected for leaks, evidence of leaks, and evidence of potential leaks. Lines along roads will be inspected while driving through the field. Other above ground lines will be walked periodically. Tanks All liquid storage tanks, except fresh water tanks, (including crude condensate, saltwater, glycol, methanol, fuel, treatment chemicals, lube condensate, etc.) and associated piping will be visually inspected for leaks, overflows, and signs of potential problems. Special emphasis will be placed on the inspection of bottom seams, patches, flanges, piping connections, sight - glasses, and other openings. Valves should be in their proper position and locked or sealed, if required. Firewalls Earthen Firewalls will be inspected for adequate capacity, erosion and leaks. Cement Firewalls will be inspected for leaks, cracks, or other signs of failure. Accumulations of liquid will be removed from the firewall. If the liquid is from one of the tanks, the source will be found, and repaired. Rainwater will be removed as soon as feasible after rain. If a firewall is equipped with a drain, the drain MUST be closed, sealed and locked when not in use. The drain must be manned whenever it is in use. Each drainage event must be recorded. The SPCC Log may be used for this record. Name of Facility: SOCO=PTCEANCE BASIN COMPRESSOI. ACILITY nnprntnr• Snvder flit Cnrnoration Page 12 SPCC PLAN, ATTACHMENT #4 INSPECTION PROCEDURE AND RECORD OF INSPECTION Line Heaters, Separators, Heater Treaters and Glycol Units These pieces of production equipment should be visually inspected for leaks, especially around valves, fittings, inspection plates and sight glasses. Vents on glycol units should be inspected for excessive liquid carryover. Glycol units must discharge into some sort of container, not to the ground. Pits Pits must be empty except when in use. Any accumulation of rainwater or produced fluids must be removed from the pit and properly disposed. Pit Liquid Level When in use, the liquid level must not be within one (1) foot of overflowing. Liquid hydrocarbons shall not accumulate in a pit. Sumps, Sump Level Controls and Sump Pumps The sump system should be checked to insure that the liquid level is acceptable and to insure that it is operating properly. Drains Drains should be inspected for blockage and accumulation of debris that would impede the free flow of liquids. Chemical Storage Tanks, Pumps and Piping Chemical injection systems should be inspected for leaks, especially around storage tanks pumps and fittings on tubing or piping. Lube Oil Systems Lube oil storage tanks and the piping systems should be inspected, especially around tanks, pumps and fittings on the piping or tubing. Flare System Any liquid handling system associated with a flare system, liquid knock -outs, etc., should be inspected. The flare ignition system should be checked periodically. Any evidence of liquid carryover should be reported and the cause repaired. If liquid carryovers are frequent, containment should be constructed to contain the carryover. Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR FACILITY Operator: Snyder Oil Corporation Page 13 - I0,-28/96 II 03 T2303 59_' 9600 S,N DER OIL CORP. -.« RIFLE 1QJ014 SPCC PLAN, ATTACHMENT #4 INSPECTION PROCEDURE AND RECORD OF INSPECTION Drain Pans or Drip Pans The liquid level in drip or drain pans should be checked and emptied as necessary. Pressure Relief Valves Pressure relief valves should be checked for leaks, evidence of leaks and signs of failure. Plant Process Heaters Plant process heaters should be checked for leaks, evidence of leaks and signs of failure. The stack should be checked for visible smoke emissions. Alarm Systems All alarm systems should be tested periodically for proper function. Rainwater Removed from Firewalls All discharges of rainwater from Firewalls to drainage must be RECORDED. The date of discharge must be noted on the SPCC Inspection Log. Prior to discharge, the water must be visually inspected for the presence of condensate and tested for the presence of saltwater. If either is present, the water cannot be discharged and must be disposed of in a permitted disposal system or other acceptable manner. Over Water Platforms Platforms, decks and curbing must be impervious. Decks and curbing must be inspected for cracks and holes. Particular attention should be paid around seams and where piping goes through the deck or curbing. All drainage must be to a sump. Drains should be inspected for debris and obstructions. Drain pipes should be inspected for leaks. Special attention should be paid to unions and joints. Sumps should be inspected for accumulations of condensate. Excess condensate should be removed and disposed of properly. Discharges from sumps should be visually inspected for an condensate sheen. Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR'rrACILITY Doerarot.: Snyder Oil Cornoration Page 14 SAIVEI< OIL CORP. RIFLE 01J SPCC FACILITY INSPECTION FORM (Note that any "NO" response requires corrective actions, circle the appropriate response) I. Wellsite Inspections A. All shut-in wells should have 0 psi at the wellhead and tree• Yes / No B. All wellhead and tree connections should be leak free: Yes / No C. All active wells should have their master valves operating and serviced to assure they function: Yes / No II. Flowline Inspections A. All active flowlines should be leak free: Yes / No B. All active flowlines should have a gauge installed to monitor pressure: Yes / No C. Any clamp -type repairs on active flowlines should be visually inspected: Yes / No III. Process Equipment Inspections A All incoming flowlines (active and inactive) should be identified: Yes / No B. Shut -down valves are checked for fail-safe closure: Yes / No C. Header/manifold systems, process vessels and their interconnecting piping should be leak -free: Yes / No D. All automatic dump valves should be checked for fail-safe closure: Yes / No E. Operating pressures on process vessels should be at or below the vessel's rated working pressure: Yes / No IV. Tank Battery Inspection A. All bulk storage tanks and their related piping are leak -free: Yes / No B. Secondary containment system is intact and competent: Yes / No C. All pressure/vacuum reliefs and atmospheric tank vents are operational: Yes / No D. Rainwater drain valve is kept in the closed position: Yes / No V. General Site Inspection A. Facility identification and emergency telephone number is posted: Yes / No B. Facility has restricted access through fence, gate and cattle guard: Yes / No Name of Facility: SOCO - PICEANCE RASIN COMPRESSOR FACILITY Operator: Snyder Oil Corporation Page 15 [0,26/96 1L:04 n306 502 8600 SNYDER OIL CORP. »»+ RIFLE IQO16 C. Facility is graded to drain rainwater away to natural watercourses: Yes / No VI, Corrective Actions VII. Verification A. Original Inspection By: Title: Date: B. Corrective Actions By: Title: Date: VIII. Distribution of this Form A. Original Field Records B. FAX Copy - Safety & Environmental Department Name of Facility: SOCO`--PICEANCE BASIN COMPRESSOL ACILITY Ooerator: Snyder Oil Corporation Page 16 10:23,90 11:04 ^p603 592 3600 Ss1lI:R 111E LUKr. -,... KLLLL CONTRACTOR RESPONSIBILITIES INSTRUCTIONS TO CONTRACTORS 1. Pollution control will be maintained at all times in connection with all operations by contractor. Snyder Oil Corporation personnel will be notified immediately of any emitting, spilling, venting, discharging, disposal or loss of any hazardous or harmful substances, air contaminants and/or pollutants of any nature (referred to as discharges). • 2. If any discharges occur as a result of the performance of work by contractors, its agents, employees and subcontractors, or persons for whom it is responsible, contractor will immediately proceed to stop or abate such discharges. 3. Contractor will comply with any and all local, state and federal laws, regulations, standards and orders applicable to the controlling and prevention of discharges. 4, Contractor will install and maintain adequate discharge control equipment on or about its plant, rig or equipment to prevent "discharges, in violation of any local, state and federal laws, regulations, standards and orders". Name of Facility: SOCO=-,ICEANCE BASIN COMPRESSOR ICILITY Operator: Snyder Oil Corporation Page 18 EMERGENCY PERSONNEL NOTIFICATION CERTIFICATION OF SUBSTANTIAL HARM DETERMINATION SPCC DATA SHEET SPILL REPORTING FORM SITE PLAN USGS QUAD 10/28/98 L1:05 222303 592 8600 SNYDNK OIL CORY. ... N1NLn SPCC NOTIFICATION LIST Facility: Piceance Basin Compression Facility Pipeline Operator - Gary Cook Office Phone 970-625-4209 Cellular Phone 970-379-5248 FieId Foreman - Rocky Pollock Office Phone 303-592-8500 Home Phone 303-660-0282 Cellular Phone 303-913-9010 Production Engineer - Steve Smith Office Phone 303-592-8500 Home Phone 303-369-9059 Cellular Phone 303-913-9012 Name of Facility: SOCO—<ICEANCE BASIN COMPRESSOR ICILITY Page 20 Operator: Snyder Oil Corporation Ot=✓LR V/ LA wnr. »»» n Lc igf VLl SPCC NOTIFICATION LIST Facility: Piceance Basin Compression Facility STATE AGENCY Colorado Department of Health, Water Quality Control 303-756-4455 Colorado Oil & Gas Conservation Commission 303-894-2100 FEDERAL AGENCY Bureau of Land Management 970-945-2341 Environment Protection Agency 303-293-1788 24 Hour number 800-227-8914 LOCAL FIRE DEPARTMENTS Emergency Central Dispatch 970-625-1243 EMERGENCY RESPONSE CONTRACTORS Vacuum Truck Service Dalbo Water Service 801-789-0742 Backhoe Service Smith Pipeline Construction 303-654-1139 Spill Cleanup Services Western Slope Oilfield Service 970-6254995 Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR FACILITY Onerator: Snyder Oil Corporation Page 21 L0/_'a: 96 11.:06p^:iO3 502 8600 SSCDER UIL CORP. RIFLE igjO2z GENERAL INFORMATION Nearby Lakes, Rivers & Navigable Streams: I. Colorado River 2. 3. • Call should condensate spill exceed 5 barrels or saltwater spill exceed 100 barrels, "anywhere". • Call should condensate spill enter waterway Name of Facility: SOCO`L PTCEANCE BASIN COMPRESSOR—ACUITY Clnrratnr: Snyder Oil Corporation Page 22 ..,1111.11 II IL 1.1/Rr. •.♦ RIYLL IQf UZa CERTIFICATION OF SUBSTANTIAL HARM DETERMINATION FORM Operator Name: Snyder Oil Corporation Facility Name: Piceance Basin Compressor Facility Federal Lease Number: Facility Legal Description: SENE Section 13, T6S-R94W, Garfield, Co., Colorado 1. Does the facility have a maximum storage capacity greater than or equal to 42,000 gallons and do the operations include over water transfers of oil to or from vessels? Yes No 2. Does the facility have a maximum storage capacity greater than or equal to one million (1,000,000) gallons and is the facility without secondary containment for each aboveground storage area sufficiently large to contain the capacity of the largest aboveground storage tank within the storage area? Yes No 3. Does the facility have the maximum storage capacity greater than or equal to one million (1,000,000) gallons and is the facility located at a distance (as calculated using the appropriate formula in Attachment C -Ill or an alternative formula* considered acceptable by the RA) such that a discharge from the facility could cause injury to an environmentally sensitive area defined in Appendix D? Yes No 4. Does the facility have a maximum storage capacity greater than or equal to one million (1,000,000) gallons and is the facility located at a distance (as calculated using the appropriate formula in Attachment C -IB or an alternate formula* considered acceptable by the RA) such that a discharge from the facility would shut down a public drinking water intake? Yes No 5. Does the facility have a maximum storage capacity greater than or equal to one million (1,000,000) gallons and within the past 5 years, has the facility experienced a reportable spill in an amount greater than or equal to 10,000 gallons? Yes No If an alternative formula is used, documentation of the reliability and analytical soundness of the alternative formula must be attached to this form. CERTIFICATION I certify under penalty of law that I have personally examined and am familiar with the information submitted in this document, and that based on my inquiry of those individuals responsible for obtaining this information, I believe that the submitted information is true, accurate and complete. Signature Title Name (Please type or print) Date Name of Facility: SOCO - PICEANCE BASIN COMPRESSOR FACILITY Operator: Snyder Oil Corporation Page 23 I1 2m .91i 11:07 G]II1 .302 8600 SN I)1'.I< 1111. 1111.W. •++ SPCC DATA SHEET Operator: Snyder Oil Corporation Name of Person Responsible: Gary Cook Title: Pipeline Operator Lease Name:. Piceance Basin Compression Facility Type of Facility: Compression/Liquid Handling Legal Description: 6S 94W Section 13 County: Garfield State: Colorado 'V4 VLY Source Type of Failure Ouanitv ate Direction t'ontairiment (bbls) bbls/tu of Flow 3-300 rupture/overflow 300 1-300 No Slope Berm bbl. Tanks 1-80 rupture/overflow 80 1-300 No Slope Berm bbl. Tank 1-30,000 rupture/overflow 714 1-714 No Slope Berm gal. Tank Materials of Tank Construction: The total quanity of condensate that could be discharged would not exceed the working capacity of the largest tank which is 715 barrels. Rate of flow: Not greater than 150 barrels of condensate, based on the maximum delivery rate into the liquid handling facility during pipeline pigging operations. Should the truck department overflow, approximately 492 bbls. of condensate could be spilled assuming the transport truck has the capabilities of hauling 222 bbls. The maximum condensate that could be spilled should a loading component accidentally fail is approximately 715 barrels. Rate of flow: Variable, depending on a size and location of a piping related failure. Maximum expected potential flow is 715 barrels. A 0 SNYDER OIL CORPORATION Piceance Basin Compressor SENE 13-T6S-R94W Garfield Co., CO Prenared Bv: Mark Wilson senJVY - JJn JI' o OL.Im„0 3 I.yvYe »JW a. Ostal Sae: I. 60' s>JWN-JA \ Minn, - 2J06 tlra >IAMAr e M ti -Y -Y r 1_U 10 IV i; In ?'! IRI lt'1 I i1H. WO FN.: 1:U11P. • I)LPII'Li-: 1U 7-162545.36 F'.02 STATE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT AIR POLLUTION CONTROL DIVISION TELEPHONE: (303) 692-3150 CONSTRUCTION PERMIT PERMIT NO: .96JE837P DATE ISSUED: 11611MARY 10. 1997 ISSUED TO: TIDEWATER COMPRESSION THE SOURCE TO WHICH THIS PERMIT APPLIES 1S DESCRIBED AND LOCATED AS FOLLOWS: Portable Natural Gas Compressor Package initially located in Section 13, T6S R94W, M Garfield County. Homebase 3110 So. Wadsworth Blvd. Suite 108, Lakewood, Jefferson County, Colorado. - THE SPECIFICEQUIPMENr OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: One 11) Caterpillar 3516TALE, Unit No. 11006, Rated at 1100 HP, Four-cycle, Lean - bum design, natural gas fired internal combustion reciprocating engine; emission unit powers a natural gas compressor. THIS PERMIT IS GRANTED SUBJECT TO ALL RULES AND REGULATIONS OF THE COLORADO AIR QUALITY CONTROL COMMISSION AND THE COLORADO AIR QUALITY CONTROL ACT C.R.S. (25-7- 101 epee). TO THOSE GENERAL TERMS AND CONDITIONS SET FORTH ON THE REVERSE SIDE OF THIS DOCUMENT AND THE FOLLOWING SPECIFIC TERMS AND CONDITIONS: 1. Visible emissions shall not exceed twenty percent (20%) opacity. 2. The permit number shall be marked on the subject equipment for ease of identification. 3. Emissions of air pollutants shall not exceed the following limitations las calculated in the Division's preliminary analysis): Nitrogen Oxides: 33.0 tons per year and 7.53 pounds per hour Volatile Organic Compounds: : 9.2 tons per year and 2.09 pounds per hour Carbon Monoxide. . . - . - 27.5 tone per year and 6.29 pounds per hour Note: Pounds per hour is based on a fuel heating value of 1,000 BTU/SCF 4. This source shall be limited to a maximum consumption rate as listed below and all other activities, operational rates and numbers of equipment as stated in the application. Annual rocordc of the actual consumption rate shall lin maintained by the applicant and made available to the Division for inspection upon request. Consumption of natural gas shah not exceed 8.540 act per hour and 86.0700.000 scf per year. INMAL APPROVAL 777/1019/001 1 . ll -IN I'l'l'. 11-,i ilei iia IPI I IUE41:1 .. ., .;b GENERAL TERMS AND CONDITIONS: (AtPORTANT) READ ITEMS 8,7 ANO 8) - This permit to issued in silence upon the accuracy and completeness of information supplied by the applicant and is conditioned upon conduct of the activity, of construction. installation and operation of the source, in accordance with tNs infonnetlon and with representations made by the applicant or appfcant'a a0ents. It is valid only for the equipment and operations or activity specifically identified on the permit. Unless pecifically stated otherwise, the general end specific conditions contained in this permit have been determined by the APCD to be neaeeoery le Gonne compliance with the provisions of Section 2S -7-114517)(a), C.R.3. 3. Exch and every condition ofMillpermit is a materiel pert hereof end is not severable. Any challenge to or appeal of, a CotiO0 hereof shall constitute a rejection of the entire permit and upon such occurrence, this permit shag be deemed darned ab ;nide. Thio permit may be revckod at any time prior to final epprodal by the Air Pollution Control Division (APCD) on grounds set forth in the Colorado Air Quality Control Act and regulations of the Air Onetty Control Commission (ADCC). including failure to meet any express tern or condition of the permit. If the Division denies s permit, condition Imposed upon n psr..tit ere contacted by the eppGeanq or rhe DlWebn rr W.ea a porn -it the vpPheeat es -ranee. er operetnr of tource may requeat a hearing before the AQCC for review of the Division's action. TNa permit and any required attachments must be retained end mode ave8able for inspection upon request at the location set forth Partin. With reenact to a portable source which is moved to a new location, a copy of the Relocation Notice (required by law to be submitted to the APCD whenever a portable source fs relocated) should be attached to this nem*. The permit maybe reissued to new owner by the APCD as provided In AQCC Regulation No. 3, Pert B, Section 81.8. upon a request for transfer of ownership rind the submittal of a revved APEN and the required fee. Issuance (initial approval) of an emission permit does not provide 'find' authority for this activity or operation's( this source. Final approve( of the permit must be secured from the APCD in writing in accordance with the provisions of 25-7-114.5 C.R.S. and A000 Raguledon No. 3. Pan 8. Section I'01, final approval cannot be grantee until the operation or eowity commences end has been verified by the APCD as conforming in til respects with the conditions of the pennit. R the APCD so determines, it will provide written documentation of such final approval, which doeo conatitute'final' authority to opanne- . THIS PERMfT AUTOMATICALLY EXPIRES IF you (1) do not commence construction or operation within 1.8 months after either the date of Issuance at thio pentit or the data on which such construction or activity was scheduled to commence ea net forth in the permit, whichever is later; (2) discontinue construction far a period of 18 months or more; or (3) do not complete conetmetion within a reasonable lime of the alternated completion date. Extensions of the expiration date may be granted by the APCO upon a slowing of good cause by the permit -res. YOU MUST notify the APCO at Iciest thirty days (fifteen days for portable sources) prior to commencement of the permitted operation or activity. Failure to do so is a violation of Section 25-7-114.5(121(a), C.P.S. and ADCC Regulation No. 3, Pan 0, Section IV.11.1., and can mauls In the revocation of the pant t. • Section 25-7-114.7(2). CAS, requires that ea sources rewired to file an Air Pollution Emission Notice (APEN) must pay an annual fail to cover the costs of inspections and administration. If a source or activity le to be discontinued. the owner moat notify the Division in writing requesting a cancellation of the pantie. Upon notification. annual lee billing will terminate. 8. Violetion of the tare) of a permit or of the proviaiona of the Colorado Air Quality Control Act or the regulations of the AQCC may result in adninistretive. civil or criminal enforcement actions under 5ecdona 25-7-115 (enforcement), -121 (injunctions). -122 (civil penalties). -122.1 (criminal penalties). C.R.S. [11 iv! rrr. Irr.tl 11'IIPI I IDEJRII I: crlr9P. . DPN)FP ri] TIDEWATER COMPRESSION Permit No. 96JE837P Initial Approval Page 2 5. Prior to final approval being issued. the applicant shall submit to the Division for approval a compliance plan. containing an operational and maintenance plan, along with recordkceping results, that outlines how the applicant will maintain compliance with the requirements of this permit. The compliance plan shall commence at startup. Annual compliance records shall be maintained by the applicant and be made available to the Division for inspection upon request. 6. This emission unit shall not be moved into an area classified as non -attainment within the State of Colorado. 7. Each time this equipment is moved to a new location within the State of Colorado the owner or operator shall filo a Relocation Notice. Such notice shall be received by the Division at least ten (10) days prior to the change in location and outline estimated actual emissions at this new site. The Relocation Notice shall include a facility emission inventory of all emission Units. 8- At alt times, including periods of start-up, shutdown, and malfunction, the facility and control equipment shall, to the extent practicable. be maintained and operated in a manner consistent with good air pollution control practices for minimizing emissions. Determination of whether or not acceptable operating and maintenance procedures are being used will be based on information available to the Division, which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. 9. A revised Air Pollutant Emission Notice (APEN) shall be flied when a significant change in actual emissions occurs (above the level repotted on the last APEN, submitted to the Division) as required by Regulation No.3, Part A.II.C.2 as per the timetable in Regulation No.3, Part A.II.C.3. 10. In accordance with C.R.S. 25-7-114.1, the Air Pollutant Emission Notice (APEN) associated with this permit is valid for a term of five years. The five year term for this APEN expires on August 15, 2001. A revised APEN shall be submitted no later than 30 days before the five year term expires. 11. The manufacturer, serial number of the subject equipment shall be provided to the Division prior to Final Approval. 12. Construction of this source must commence within 18 months of initial approval permit issuance or within 18 months of the start-up date stated in the application. If commencement does not occur within the stated time the permit will expire on angisr i11, 1g9a (Sae General Condition No. 6., Item 1 on the reverse side of the first page of this permit.) Molloy ngineer/Reviewar 777/1019/001 By: Dennis M. Myers. P.E. Construction Permits Unit Stationary Sources Program Air Pollution Control Division EXHIBIT "A" PROPERTY DESCRIPTION OF RIFLE COMPRESSOR SITE Beginning at a point in the NE/4 of Section 13, T6S, R94W, 6th P.M. which bears S09'O1'22"W 1491.82' from the northeast corner of said section (being a set marked stone), thence SO1'06'45"W 616.13', thence S73'001E 31.56', thence N88'53'15"W 238.71', thence NO1'06'45"E 626.13', thence S88'53'15"E 268.71 to the point of beginning. Basis of bearings is the east line of the SE/4 of Section 21, T6S, R93 W, 6th P.M., which is assumed from G L 0 Information to bear north. Containing 3.859 acres, more or less. EXHIBIT "W' ADJOINING PROPERTY OWNERS OF THE RIFLE COMPRESSOR SITE 1. W.F.Clough (Pasture Land) P.O. Box 686 Rifle, CO 81650 970-876-0107 2. Colorado Department of Transprotation (Highway 6 & 24) 222 So. 6th Street, Room 317 Grand Junction, CO 81501-2769 970-248-7208 ADDITIONAL PROPERTY OWNERS IN THE VICINITY PROVIDED WITH NOTICE OF APPLICATION OF SPECIAL USE PERMIT 3. Public Service Company of Colorado (Rifle Compression Station) 1225 17th Street, Suite 400 Denver, CO 80202-5504 303-623-2400 4. Questar Pipeline Company (Rifle Field Yard with Storage Facilities) 79 S. State Street Salt Lake City, Utah 84111-1517 5. UMETCO Minerals Corporation (Vacant Land - No Buildings) Section G Old Ridgebury road Danbury , Connecticut 06817-0001 203-794-3600 6. Northwest Pipeline Company (Gas Processing and Transportation Facilities) P.O. Box 58900 Salt Lake City, Utah 84158-0900 801-583-8800 7. United States Department of the Interior Bureau of Land Management Glenwood Springs Resource Area P.O. Box 1009 Glenwood Springs, CO 81602 970-945-2341 O -T r e al:AV:Mt Gra / n APPLICATION FOR AfR�i__._ATfTON EMISSION PERMIT' OR 1MODIFICATION This application moat be filled out completely except for 014 end 115: otberwiae• epplict oc will be ton decd incomplete - SEE INSTRUCTIONS ON REVERSE SIDE. Mail completed application APENs and filing fee to: Colorado Deportment yMaakd. APCD•SS-B1 4300 Cherry Ore& Ikive South Denver, Colorado 80213-7530 TckpTmae: (303)697-31S0 1. Permit to be issued to: -7166" kil-rck L Mailing Addrexs: - Suttee eo L1)0 3. /1J4-1stdoq.rk -B tub /MS 7 w ZIP a$hjz9 3a. Agent for Service (Ser No_ 3 on rewnse} o/A .. 3b. Federal Tax Iden4ficeffoa Nwnber: c44 / 2R2()& 4a. Ge Nature ofiardnacr: 0,'t rejd •° r/,r.F eenuAte /dx1 las", 4b. SIC Code: /3/( 5a. Air Pollution Sourer Daeription: - ?dig91)114 3516b7,21,E .heiel 1i4'r-e/1 ddo eaelir,OFsSzt 2 F Sb. Days per year sourer will Wart f/aS 6a. Sarum Iaeatioa Address (Include -riza7N3A%PG 50 ossa Ma r lop. pa lows r &..s Location Map): 84,16- gy(e) &J r1 'e....w COMM, 66. VIM Camdin.ates (in tan) ---•-H -- - - - - V v... 7. ESTIMATED COSTS: 7a. Source, Process Equipment or Protea: Cap. Cost $ - Air Pollution Control Primalues or Equipment 7b. Capital Cort: $ 7c. Operating Cox S aa. SSATUS _ .. - . ..e ❑ .NS.Alr Pollution Serve -. *Modheation to Permi+tad Source ❑; Tiniajla of Ownership.- Ihuntf Q. Editing Somas- not pamlued ❑ Other - `- (Control Eg4,menr added. proms dwnge, dc). front: Yhrs keno AAA 4 pecmir r yo.Tri /O) alb cora /t k$ Nj ((( a 6r•.a/)ea onoch..+e -50.78 Agp -:b &Monica, aid ba less (Include Thee of Some Story -cap): Projected Dotes for Construction to: . . - - Sb. Fait- g -/5.q 4,• •. re. End: $—/S -9G Polkaed Sower Startup Date: 84. 8-15-96 9.: Enclose cheek to 07V02; APEN FILING FEES One APEN should brined for each emission point . . ' NO7E Tonal ptnatsing fat mriat alto be paid prior to permit issuance. APBNS ®S180-0% per APEN : $ /67 `3 10.. stemma OF LEOA(L Fgaipmrnt Manujaaan -) d' mar" '.. ON (NOT Vendor or 46-v-96 I la_ Date Signed: lib. Telephone No.: (303) 9&q -94 -is 12. Type or Prim name and Oficial tide of permit signing item 10. Al/ 4��IIw�r04.42V Sear r . �C g • rr577i/(W2 14. DATE Avenov Uae Only RECEIVED: 13. Carnek appropriate boa if you want:. • a. 0 Copy of preliminary analysis conducted by Division b. d To review a th4 of the permit prior so issuance? w, a..sa :: I5. PERMIT NUMBER rW SHAM INVIflTIOd 13 • �I` _p y a >IIJ i u !j[:. a� •`711 I"ilr„ «fir 8��> F 111 11 111111 tM F ' �S T g a � ir ; c.:. c, Xis . _ �_r» i ..tet..;., s` �wr I V8iff fl GI pl i 4....52c iiiIII1'!i'iIII1 C a ,h �? IC 1 Ia E: ti 7 N AJ. 1: tt. Ii � I ` . V ' illgI a ... U.1:� UOL'tJ •' ;� O ®� , z:E g} _• II ■ II\�E •1 ES F ill s •• ' H Y R �, i II i «4 a L� '7}.�",� , :: , � CSE. I'Ne �I , a R e. i L Co ggg g " Y. !{�i1f'pga �. ' i S 2 A R � Rig. 0 py �a SHAM INVIflTIOd IMMJSTRWL SPARK-4GNITEG ENGINE GENERAL SPEctfvCATION9 Continuous Ratings (bhp) 120otpm LE TA -90 1150 LE TA -130 1005 STD TA -90 1085 STD TA -130 1050 STD NA O00 Physical Factors LE TA $rD TA Gro NA Widb 1709 mm 167.11n) 1706 mm (67.1 Inj 1664 nm (81.660 CAT 3516 St Engine Type- spa,6-19nbal Nanny Aspirated (NA) m Turbothi ged-AtWo30104 (TA1 Lebo 09 Capaaly-SID- 5761. (170 a20 LE- 402L (106 J*thgt WaterSy9elm, Capacity Iwo Rorib1ar-2201 (65.1/1) 11Wrpm 1050 995 926 945 625 Larva 3327 mm (T31 it) 932701m (13T 9211 mm ma 4 in) 1000 rpm 1136 000 905 075 585 266944 6022 tq 17,470 b 7961 kg 17.470 b 7448)a maxi b 933 rpm 800 910 815 790 525 No af Cylinder& -w16 Sons - 170 mm 927 in) 51r6ke -190 mm (7.6 n) Kam 10aalac moat - 07.4 liter {4210 au 60 fry- :ROT 9006& C011lpn *n Ra50 -91 900 tpm 765 720 725 700 050 710 rpm 070 s30 52E 815 390 LE TA -9S Fuel Consumption Data bhW 143 708 448 597 745 $9!f 2Uus1� iId ,: 2000 BIM 'a4 rt I� ■■ 112111111021/ 1 lcuoa 9w,9�t ROO map ammo MINIMSItha:u ae wMww -wog" �' -— i •0101 .osur 111111 � 111 200 4+A0 600 %0o 1000 1200 rog t8.3 15.9 15.5 141 12.7 11.3 LE TA -130 13000 13100 11000oo 10090 0000 ROO 7000 6tx 149 299 448 597 746 895 Mar - 200 400 8w 800 1000 1200 _ Nur . 193 199 15.5 tinisslon Rate Cakulatiane Unit 1 Caterpillar G3516TALE Engine ratbtolhp) 1100 pm/bhp/hr )b/hr ton/yr NOx 1A 6.02 21.99 CO 1.5 4.18 18-32 NMHC 0.5 1.39 0-11 Statist htfotrnsff nl Diameter 12.00 in ROW rata 7418 actin Velocity 167.4 ft/sec Haight 19S ft Tsflparadlre 883 deg F Fel Catnumption Fal Comers: 1000 Stulw.11i Btulbhpihr 7767 MMBtulhr 8.54 MMadlyr_ 66.07 Rate Naha: Emission data calculated IbRv and ten/yr wriation rates lblhr — gm/bhp/in • (1 Ib/463-8 gml ' hp toner — Iblhr • 1878(1 Ir/yr) • 1ton12000 Ib) aduuet velocity area — (3.1416/4)'0'2 Vol - flow rata / area, fuel ccnsvilrgpl tam in MMBtulhr MMBtu/hr — Btulb l.pihr • hp / 1000000 Pape 1 a TOTAL PRGA.23 'O` FIRE CONTROL MEASURES RIFLE COMPRESSION SITE General • All project personnel are instructed as to: Fire danger for the day Location of fire control equipment Proper operation of fire control equipment Emergency procedures and how to call for additional resources Welding Operations • A minimum of one person is dedicated to act as a fire watch during welding operations with a fire extinguisher at hand. • Welding shields are used during grinding operations to prevent sparks from leaving the work areas and igniting vegetation. • Water trucks are used to wet down ground and nearby vegetation, as conditions dictate. • At the close of each day, welding personnel inspect the area of welding activities for any smoldering debris and any conditions conducive to fires. Communications • All SOCO vehicles are equipped with cellular communications on board In the event of a fire • In the event of a fire, all personnel and appropriate equipment on site will be committed to its containment and control • The BLM and appropriate fire authorities will be notified immediately. • Direction of fire control efforts will be transferred to appropriate fire fighting agency personnel upon their arrival on site. ,1 3bd9b3b SNYUkk U I L rod r 3 UL I btl " tlb Yb: a .6886,375`E — 268.7 R 94 fi 93 TV POV£R LINE Sat Marked Stene Pee Stonee POWER POLE Th ONolurg/ Gas Scrubber, & Moni(u/d p I I I MC awes Cop Liquids Orip Tank Proposed Vapor Recovery Compressor (Electric) Proposed Dehydrot/on Un/t Scrubber Still O CCondeneoftda auecfcr Prposed (e) Glycol 9 ° CI)Col Dehydration Units QonracPor Regeneration /V Skid Still Existing Proposed` OCOOdensation Nature/ Gas Natural Gas Ce/iecforl Compressor Com re95or Proposed Air Compressor (E/sahii) With 9/do. b rook i(Toseo S7J'OO'W — 31.56' N8633.15"W — 2)6.71' N S HIGHWAY 6 R/GHT—OF—WAY FENCE Pa Pp 3Goocov000 JIYI VCR wl 35853'15 E - ?6$71' R R 94 93 w rr Sat Make! Von.. Pik Stens POWER LINE POWER POLE Ex/sting Proposed Natural Gas Natural Cos • Compressor Compressor Detail Scale: 1" = 60' 573'OO'W - 31.58' N8853'15"W - 138.71' U.S. HIGHWAY 6 RICHT-OF-WAY FENCE ,ower a EASEMENT GRANT FOR SURFACE FACILITIES FOR AND IN CONSIDERATION, of the sum of Ten Dollars ($10.00) and other good and valuable consideration, the receipt of which is hereby acknowledged, W. F. Clough, 300 East 5th, Rifle, Colorado 81650, hereinafter called "Grantor", hereby grants unto Southeast Piceance Pipeline Joint Venture, a Colorado Joint Venture, 1625 Broadway, Suite 2200, Denver, Colorado 80202, hereinafter called "Grantee", its successors and assigns, an easement for construction, installation, maintenance, inspection, operation, repair, removal and replacement of a natural gas compressor, a vapor recovery compressor, glycol dehydration units, an air compressor with building and tank and other equipment and appurtenances associated with Grantee's oil and gas production and transmission business upon a tract of land in Garfield County, State of Colorado, described as follows: Township 6 South Range 94 West 6th P.M. Section 13: A tract of land in the NEK describe as beginning at a point in the NE/ of Section 13, T. 6 S., R. 94 W., 6th P.M. which bears S09°01'22"W 1491.82 feet from the northeast comer of said section (being a set marked stone); thence SOl °06'45"W 616.13 feet; thence S73 °00'E 31.56 feet; thence N88°53'15"W 238.71 feet; thence N01°06'45"E 626.13 feet; thence S88°53'15"E 268.71 feet to the point of beginning. Basis of bearings is the east line of the SEK of Section 21, T. 6 S., R.93 W., 6th RM., which is assumed from G.L.O. information to Bear north. Containing 3.859 acres, more or less. together with the right of ingress and egress to and from same. • IT IS MUTUALLY UNDERSTOOD AND AGREED BETWEEN THE PARTIES AS FOLLOWS: 1. Grantee shall be responsible for all costs and expenses of effecting compliance with all Garfield County zoning regulations to permit the Grantee's intended use of the tract of land described above. Grantor agrees to cooperate fully with Grantee's efforts to effect compliance with local and state laws and regulations applicable to Grantee's use of the premises including, but not limited to, the procurement of a special use permit from the Board of County Commissioners of Garfield County, Colorado. 2. Grantee agrees to maintain its equipment in a safe condition and agrees to indemnify and hold Grantor harmless for any damages to persons, personal property and real property caused by Grantee's operations on the premises. 3. The rights granted herein may be assigned in whole or in part. Any such assignment shall relieve Grantee of any liability or obligation to Grantor created by this grant of easement. 4. Upon request by Grantor, the surface facility easement herein granted shall terminate and all rights thereunder revert to Grantor, when the surface facilities located thereon have not been used by Grantee for a period of one (1) year except when non-use is caused by acts or circumstances beyond the control of Grantee. 5. Upon the termination of the Grant, Grantee shall have the right to remove all equipment and structures upon the premises. ., 6. This grant of easement shall be binding upon the parties hereto, their heirs, successors and assigns. 7. This easement is for the modification of an existing facility and the installation of additional facilities on the tract of land described above. IN WITNESS WHEREOF, Grantor and grantee have executed this easement effective this 1st day of October, 1996. GRANTOR GRANTEE W. F. Clough Southeast Piceance Pipeline Joint Venture, by SOCO Gas Systems, Inc., its Operator ✓ t -" - 7144./ By: David M. Posner as President of SOCO Gas Systems, Inc. STATE OF COLORADO COUNTY OF GARFIELD Gado. •' The foregoing instrument was acknowledged before me this 2S day of r 1996, by W. F. Clough. WITNESS my hand and official seaL����7�� My Commission Expires: r%/ /0-7-97 Notary Public Mark L. W',Is.— SNYDCR C!L CORPORATION 4..J 7th St. Suite 1200 Rifle, Colorado 81650 STATE OF COLORADO COUNTY OF DENVER The foregoing instrument was acknowledged before me this WS- day of OetaA, 1996, by David M. Posner as President of SOCO Gas Systems, Inc. WITNESS my hand and official seal My Commission Expires: /0,-7t1.7 Notary Public Miley 1— 10,15mt SNYDER OIL CORPORATION 400 7th St. South Supe 1200 Rifle, Colorado 81880 LETTER OF AUTHORIZATION I, W. F. Clough, 300 East 5th Street, Rifle, Colorado 81650, as surface owner of the lands described below, in accordance with an Easement Grant for Surface Facilities dated effective October 1, 1996, from W. F. Clough to Southeast Piceance Pipeline Joint Venture, hereby authorize Southeast Piceance Pipeline Joint Venture, 1625 Broadway, Suite 2200, Denver, Colorado 80202, to submit an Application for Special/Conditional Use Permit to install, operate, maintain and modify a natural gas compressor and related facilities on the following described land in Garfield County, Colorado, to wit: Township 6 South, Range 94 West. 6th P.M. Section 13: A tract of land in the NE/. describe as beginning at a point in the NE'/ of Section 13, T. 6 S., R. 94 W., 6th P.M. which bears S09°01'22"W 1491.82 feet from the northeast comer of said section (being a set marked stone); thence S01°06'45"W 616.13 feet; thence S73°00'E 31.56 feet; thence N88°53115"W 238.71 feet; thence NOl °06'45"E 626.13 feet; thence S88°53'15"E 268.71 feet to the point of beginning. Basis of bearings is the east line of the SE%a of Section 21, T. 6 S., R.93 W., 6th P.M., which is assumed from G.L.O. information to Bear north. Containing 3.859 acres, more or less. Dated this 1st day of October, 1996. W. F. Clough i2n!/ SUBSURFACE SOILS EXPLORATION RIFLE COMPRESSOR FACILITY OF SNYDER OIL CORP. RIFLE, COLORADO Prepared For: Snyder Oil Corp. 400 7th Street, Suite 1200 Rifle, Colorado 81650 JUN 20 Prepared By: LINCOLN-DeVORE, INC. 1441 Motor Street Grand Junction, CO 81505 June 17, 1996 Lincoln DeVore,Inc. Geotechnical C nsultants 1441 Motor St. Grand Junction, CO 81505 June 17, 1996 Snyder Oil Corporation 400 7th Street, Suite 1200 Rifle, Colorado TEL: (970) 242-8968 FAX: (970) 242-1561 Re: SUBSURFACE SOILS EXPLORATION RIFLE COMPRESSOR FACILITY OF SNYDER OIL CORP. RIFLE, COLORADO Dear Sir: Transmitted herein are the results of a Subsurface Soils Explora- tion for the proposed construction of additional foundation pads for natural gas compressors. If you have any questions after reviewing this report, please feel free to contact this office at any time. This opportunity to provide Geotechnical Engineering services is sincerely appreciated.=ms Respectfully submitted, foOQPPO M.MOgTFFO I, 44/a N\ LINCOLN-DeVORE, INC. 112j/ �k. 30590 ��. " y9�4f 96:'. By: Edward M. Morris, PE Western Slope Branch Manager Grand Junction, Office LDTL Job No. 85482-J EMM/bl TABLE OF CONTENTS Page No. INTRODUCTION 1 Project Description, Scope, Field Exploration & Laboratory Testing. FINDINGS 5 Site Description, General Geology and Subsurface Description, Ground Water CONCLUSIONS AND RECOMMENDATIONS 10 General Discussion, Open Foundation Observation, Excavation & Structural Fill Drainage and Gradient FOUNDATIONS 17 Settlement, Frost Protection CONCRETE SLABS ON GRADE 19 EARTH RETAINING STRUCTURES 20 REACTIVE SOILS 21 LIMITATIONS 22 INTRODUCTION PROJECT DESCRIPTION This report presents the results of our geotechnical evaluation performed to determine the general sub- surface conditions of the site applicable to construction of additional foundation pads for natural gas compressors at the Rifle Compressor Facility of Snyder Oil Corporation. A vicinity map is included in the Appendix of this report. To assist in our exploration, we were provided with a site diagram by Snyder Oil Corporation. The Boring Location Plan attached to this report is based on that plan provided to us. We understand that the proposed struc- tures will consist of assembled skids which are to be delivered to the site. Lincoln DeVore has not been provided with a set of construction drawings or design loads for the skids. Structures of this type typically develop pad loads on the order of 5-20 kips, depending upon the spacing of the foundation pads. Cyclic vibration loading must be considered in the design of founda- tions. This is normally accomplished through the use of suffi- cient foundation mass to absorb the vibrations. The characteristics of the subsurface materials encountered were evaluated with regard to the type of construction described above. Recommendations are included herein to match the described construction to the soil character- istics found. The information contained herein may or may not be 1 valid for other purposes. If the proposed site use is changed or types of construction proposed, other than noted herein, Lincoln DeVore should be contacted to determine if the information in this report can be used for the new construction without further field evaluations. PROJECT SCOPE The purpose of our exploration was to evaluate the surface and subsurface soil and geologic conditions of the site and, based on the conditions encountered, to provide recommendations pertaining to the geotechnical aspects of the site development as previously described. The conclusions and recommendations included herein are based on an analysis of the data obtained from our field explorations, laboratory testing program, and on our experience with similar soil and geologic conditions in the area. Specifically, the intent of this study is to: 1. Explore the subsurface conditions to the depth expected to be influenced by the proposed construction. 2. Evaluate by laboratory and field tests the general engineering properties of the various strata which could influence the development. 3. Define the general geology of the site including likely geologic hazards which could have an effect on site development. 4. Develop geotechnical criteria for site grading and earthwork. 5. Identify potential construction difficulties and pro- vide recommendations concerning these problems. 6. Recommend an appropriate foundation system for the anticipated structure and develop criteria for foundation design. 2 FIELD EXPLORATION AND LABORATORY TESTING A fieldevaluation was performed on 5- 21-96, and consisted of a site reconnaissance by our geotechnical personnel and the drilling of 3 shallow exploration borings. These 3 shallow exploration borings were drilled within the proposed compressor pad footprints, near the locations indicated on the Boring Location Plan. The exploration borings were located to obtain a reasonably good profile of the subsurface soil condi- tions. All exploration borings were drilled using a CNE 45-B, truck mounted drill rig with continuous flight auger to depths of approximately 9-17 feet. Samples were taken with a standard split spoon sampler, thin walled Shelby tubes, and by bulk methods. Logs describing the subsurface conditions are presented in the attached figures. The boring logs and related information show subsurface conditions at the date and location of this. exploration. Soil conditions may differ at locations other than those of the exploratory borings. If the structure is moved any appreciable distance from the locations of the borings, the soil conditions may not be the same as those reported here. The passage of time may also result in a change in the soil condi- tions at the boring locations. The lines defining the change between soil types or rock materials on the attached boring logs and soil profiles are determined by interpolation and therefore are ap- proximations. The transition between soil types may be abrupt 3 or may be gradual. The following laboratory tests were performed on representative soil samples to determine their relative engineering properties. ASTM D-2487 ASTM D-2435 ASTM D-2937 ASTM D-2216 Soil Classification One Dimensional Consolidation In -Place Soil Density Moisture Content of Soil Tests were performed in accordance with test methods of the American Society for Testing and Materials or other accepted standards. The results of our laboratory tests are included in this report. The in-place soil density, moisture content and the standard penetration test values are presented on the attached drilling logs. 4 FINDINGS SITE DESCRIPTION The project site is located in the Southeast Quarter of the Northeast Quarter of Section 13, Town- , ship 6 South, Range 94 West of the 6th Principal Meridian, Gar- field County, Colorado. More specifically the site is located approximately 2' miles West of the Town of Rifle, on the North side of the Pioneer Ditch and North of the I-70 Business Loop. The specific study area is East, South and West of the existing natural gas compressor and is within the general area addressed by a previous Subsurface Soils Exploration completed by Lincoln DeVore for Tidewater Compression, August 8, 1995, LD Job 83413-J. This original Subsurface Soil Exploration was quite general in nature as the precise location of the facility had not been conveyed to the field personnel of Lincoln DeVore. The topography of the site is relatively flat. The site has been subjected to cut and fill operations. Much of the fill has been placed under reasonably controlled moisture and compaction effort conditions. Lincoln DeVore has records of much of this fill, indicating that proper compaction had occurred in specific areas. Some of the man-made fill placed on this site were apparently not in areas which were to have controlled moisture and compaction effort conditions. In partic- ular, some areas of fill, East of the compressor site are ob- served to be settling. In addition, some of the deeper fill placed beneath exploration boring #1 was found to be of low density and is compressible. 5 On-site erosion can be a significant problem if drainage and vegetation are not carefully controlled. Any vegetation will assist in minimizing erosion on steeper slopes. Due to the arid environment, vegetation is often very difficult to establish or re-establish. We recommend that runoff from any slopes be carefully controlled to prevent erosion caused by sheet wash or precipitation. It may be necessary to provide culverts or drainage ways to prevent excessive erosion along steeper slopes and across the compressor site areas. GENERAL GEOLOGY AND SUBSURFACE DESCRIPTION The geologic materials encountered under the site consist of varying amounts of man-made fill which over- lie alluvial/debris fan deposit which in turn overlie the Wasatch Formation. The Wasatch Formation is a part of a very thick sequence of sedimentary rocks. The geologic and engineering properties of the materials found in our 3 shallow exploration borings will be discussed in the following sections. The native surface soils on this site consist of a very stratified series of silty sands, silty clays, clayey sands and clayey silts which are a product of mudflow/debris flow features which originate in the large gully feature to the North and the Northwest of the site. The surface soils are an erosional product of the upper Wasatch Formation and overlying sedimentary rocks, which are exposed on the slopes to the North and West. 6 The soils contained within the mudflow/debris flow features are very stratified exhibiting low to medium density, with some low and very low density strata exhibiting metastable conditions. Metastable soil is subject to internal collapse and is very sensitive to changes in the soil moisture content. Based on the field and laboratory testing of the soils on this site, the severity of the metastable soils can be described as slight to very slight. These soils are of low to moderate compressibility. The man-made fills encountered on this site, during this exploration program, were found to be very stratified and quite similar to Soil Type II in the original Subsurface Soils Exploration, August 8, 1985. For purposes of this report, these soils are designated Soil Type I. This Soil Type was classified as a silty sand (SM) under the Unified Classification System. This soil type does contain strata of slightly clayey sands. This material is generally non -plastic, of low to moderate permeability, and was encountered in a medium density, slightly moist condition. Occasional thin strata of low density soils was encountered during drilling and sampling on this site. This soil will experi- ence small amounts of settlement after being loaded. The maximum allowable bearing capacity for this soil was found to be 1800 psf, with 150 minimum dead load pressure required. The finer grained portion of Soil Type No. I contains sulfates in detrimen- tal quantities. The native soils were encountered in all 7 three exploration borings. These soils were very near the ground surface in borings #2 & #3, South and West of the existing com- pressor site. These soils have been designated Soil Type II for this report. This Soil Type was classified as a silty clay (NIL -CL) under the Unified Classification System. This material is of low plasticity, of low to moderate permeability, and was encountered in a medium density, dry to slightly moist condition. When this soil is found in a relatively dry condition, it may undergo mild expansion with the entry of small amounts of moisture, but may also undergo small amounts of long-term consol- idation upon the addition of larger amounts of moisture. This soil will settle after being loaded. The maximum allowable bearing capacity for this soil was found to be 3500 psf, with 400' psf minimum dead load pressure required. The finer grained portion of Soil Type No. II contains sulfates in detrimental quantities. The man-made fills and the native allu- vial/debris fan soils are deposited over the Wasatch Formation. The Wasatch Formation is believed to be between 1' to 5' below the top of the native alluvial soils. As this exploration pro- gram was primarily concerned with providing data for shallow foundation systems, the exploration borings. were not continued to the Wasatch Formation. General information regarding the Wasatch Formation can be obtained in the report of the Subsurface Soils Exploration, performed for Tidewater Compression, August 8, 1995. 8 GROUND WATER: No free water was encountered during drilling on this site. In our opinion the true free water sur- face is fairly deep in this area, and hence, should not affect construction. Seepage moisture may affect construction if sur- face drainage is not properly controlled. 9 CONCLUSIONS AND RECOMMENDATIONS GENERAL DISCUSSION No geologic conditions were apparent during our reconnaissance which would preclude the site develop- ment as planned, provided the recommendations contained herein are fully complied with. Based on our investigation to date and the knowledge of the proposed construction, the site condition which would have the greatest effect on the planned development is the slight soil expansion encountered in the alluvial and man- made soils on this site and the possible presence of low density strata in the soil and fill profile. Since the exact magnitude and nature of the foundation loads are not precisely known at the present time, the following recommendations must be somewhat general in nature. Any special loads or unusual design conditions should be reported to Lincoln DeVore so that changes in these recommendations may be made, if necessary. However, based upon our analysis of the soil conditions and project characteristics previously outlined, the following recommendations are made. OPEN FOUNDATION OBSERVATION Since the recommendations in this report are based on information obtained through random borings, it is possible that the subsurface materials between the boring points could vary. Therefore, prior to placing forms or pouring con - trete, an open excavation observation should be performed by representatives of Lincoln DeVore. The purpose of this observa- 10 tion is to determine if the subsurface soils directly below the proposed foundations are similar to those encountered in our exploration borings. If the materials below the proposed founda- tions differ from those encountered, or in our opinion, are not capable of supporting the applied loads, additional recommenda- tions could be provided at that time. EXCAVATION: Site preparation in all areas to receive structural fill should begin with the removal of all topsoil, vegetation, and other deleterious materials. Prior to placing any fill, the subgrade should be observed by representatives of Lincoln DeVore to determine if the existing vegetation has been adequately removed and that the subgrade is capable of supporting the proposed fills. The subgrade should then be scarified to a depth of 10 inches, brought to near optimum moisture conditions and compacted to at least 90% of its maximum modified Proctor dry density [ASTM D-1557]. The moisture content of this material should be within + or - 2% of optimum moisture, as determined by ASTM D-1557. In general, we recommend all structural fill in the area beneath any proposed structure or roadway be compacted to a minimum of 90% of its maximum modified Proctor dry density (ASTM D1557). This structural fill should be placed in lifts not to exceed six (6) inches after compaction. We recommend that fill be placed and compacted at approximately its optimum moisture content (+/-2%) as determined by ASTM D 1557. Structural 11 fill shout d be a granular, non -expansive soil. Allowable slope angle for cuts in the native soils is dependent on soil conditions, slope geometry, the moisture content and other factors. Should deep cuts be planned for this site, we recommend that a slope stability analysis be performed when the location and depth of the cut is known. EXCAVATION & STRUCTURAL PILL: Subgrade Site preparation in all areas to recei'e structural fill should begin with the removal of all topsoil, vegetation, and other deleterious materials. Prior to placing any fill, the subgrade should be observed by representatives of Lincoln DeVore to determine if the existing vegetation has been adequately removed and that the subgrade is capable of supporting the proposed fills. The subgrade should then be scarified to a depth of 10 inches, brought to near optimum moisture conditions and compacted to at least 90% of its maximum modified Proctor dry density [ASTM D-1557]. The moisture content of this material should be within + or - 2% of optimum moisture, as determined by ASTM D-1557. Structural Fill In general, we recommend all structural fill in the area beneath any proposed structure or roadway he compacted to a minimum of 90% of its maximum modified Proctor dry density (ASTM D1557). We recommend that fill he placed anrl com- pacted at approximately its optinuan, moisture content (+/-2%) as 12 determined by ASTM D 1557. Structural fill should be a granular, coarse grained, non -free draining, non -expansive soil. This structural fill should be placed in the overexcavated portion of this site in lifts not to exceed 6 inches after compaction. This Structural Fill must be brought to the required density by me- chanical means. No soaking, jetting or puddling techniques of a' type should be used in placement of fill on this site. Non -Structural Fill We recommend thatall backfill placed around the exterior of the building, and in utility trenches which are outside the perimeter of the building and not located beneath roadways or parking lots, be compacted to a minimum of 80% of its maximum modified Proctor dry density (ASTM D-15571. Fill Limits To provide adequate lateral support, we recommend that the zone of overexcavation extend at least 3 feet beyond the perimeter of the building on all sides. The Structural Fill should be a minimum of 3 feet in final compacted thickness. No major difficulties are anticipated in Lhe course of excavating into the surficial soils on the site. IL is probable that safety provisions such as sloping or bracing the sides of excavations over d feet deep will be necessary. Any such safety provisions shall conform to reasonable industry safety practices and to applicable OSHA regulations. The OSHA Classifi- cation for excavation purposes on this site is Soil Class D. 13 Pie1d Observation & Testing: During the placement of any structural. fill, it is recommended that a sufficient amount of field tests and observation be performed under the direction of the geotech- nical eotech-nical engineer. The geotechnical engineer should determine the amount of observation time and field density tests required to determine substantial conformance with these recommendations. It is recommended that surface density tests be taken at. maximum 2 foot vertical interval. The opinions and conclusions of a geo- technical report are based on the interpretation of information obtained by random borings. Therefore the actual site conditions may vary somewhat from those indicated in this report. It is our opinion that field observations by the geotechnical engineer who has prepared this report are critical to the continuity of the project. Slope Angles Allowable slope angle for cuts in the native soils is dependent on soil conditions, slope geometry, the moisture content and other factors. Should deep cuts he planned for this site, we recommend that a slope stability analysis be performed when the location and depth of the cut is known. DRAINAGE AND GRADIENT: Adequate site drainage should he provid- ed in all foundation areas and traffic areas both during and 14 after construction to prevent the ponding of water and the satu- ration of the subsurface soils. We recommend that the ground surface around all structures be graded so that surface water will be carried quickly away from the structures. The minimum gradient within 10 feet of the building will depend on surface landscaping. We recommend that paved areas maintain a minimum gradient of 2%, and that landscaped areas maintain a minimum gradient of 8%. It is further recommended that any roof drain downspouts be carried across all backfilled areas and discharged at least 10 feet away from the structure. Proper discharge of roof drain downspouts may require the use of subsurface piping in some areas. Planters, if any, should be so constructed that moisture is not allowed to seep into foundation areas or beneath slabs or pavements. it is recommended that the natural drainage, existing prior to construction, be disturbed as little as possible by final grading. In particular, we recommend that water not be channeled along or across any newly filled areas, as this may result in accelerated erosion and damage to the fill. To fully minimize erosion, a vegetative cover should be established. as soon after grading is complete as possible. To give any buildings or foundations extra lateral stability and to aid in the rapidity of runoff, it is recommended that, all backfill around the any buildings, foun- dations and in utility trenches in the vicinity of the founda- tions be compacted to a minimum of 85% of its maximum Proctor dry density, ASTM D 698. The native soils on this site may he used 15 for such backfill. We recommend that all backfill be compacted using mechanical methods. No water flooding techniques of any type may be used in placement of fi11 on this site. 16 F0UNDATTONS We recommend the use of a conventional shallow foundation system consisting of either continuous spread footings beneath all bearing points or isolated spread footings beneath the bearing areas be used to support the compressor skids. Due to the variable loading conditions of these skids, proper balance of the foundation components can be rather diffi- cult. In general, contact stresses to the soil beneath all continuous strip footings or isolated pads should be balanced over within ±200 psf at all points. The criteria for balancing normally depends on the nature of the structure. For these compressor skids, the foundat i. ons should be balanced on the has is of deadload only. If minor amounts of movement can be tolerated, more massive, thick footings or blocks may he utilized, particu- larly if equipment tie -down or vibration damping is required. If soft soils strata are encountered during excavation, these soft strata should be removed and re- placed with properly prepared and compacted structural fill, placed in accordance with recommendations contained in this report. SETTLEMENT: Close estimates of total and differen- tial settlement will not be provided in this report since Lincoln DeVore has not been given exact foundation loads. Upon completion of the structural plans, the predicted settlements can be sup - 17 plied upon request. In general, .iL is bel. ieyed the total and differential settlement should he less than 1", based upon our experience with similar sot] conditions and similar type str tures. FROST PROTECTION We recommend that the bottom of all foundation components rest a minimum of 2 feet below finished grade or as required by the local building codes. Foundation components must not be placed on frozen soils. 3.8 CONCRETE SLABS ON GRADE Slabs could be placed directly on the natural soils or on a structural fill. We recommend that all slabs on grade be constructed to act independently of the other structural portions of the foundations or any buildings. One method of allowing the slabs to float freely is to use expansion material at the slab- structure interface. It is recommended that floor slabs on grade be constructed with control joints placed to divide the floor into sections not exceeding 360 to 400 square feet, maxi- mum. Also, additional control joints are recommended at all inside corners and at all columns to control cracking in these areas. Problems associated with slab 'curling' are usually minimized by proper curing of the placed concrete slab. This period of curing usually is most critical within the first 5 days after placement. Proper curing can be accomplished by continuous water application to the concrete surface or, in some instances by the placement of a 'heavy' curing compound, formulated to minimize water evaporation from the concrete. Curing by continuous water application must be carefully under- taken to prevent the wetting or saturation of the subgrade soils. 19 EARTH RETATNING STRUCTURES The active soil pressure for the design of earth retaining structures may be based on an equivalent fluid pressure of 50 pounds per cubic foot. The active pressure should be used for retaining structures which are free to move at the top (unrestrained walls). For earth retaining structures which are fixed at the top, such as basement walls, an equivalent fluid pressure of 65 pounds per cubic foot may he used. It should be noted that the above values should be modified to take into account any surcharge loads, sloping backfill or other externally applied forces. The above equivalent fluid pressures should also be modified for the effect of free water, if any. The passive pressure for resistance to lateral movement may be considered to be 250 pcf per foot of depth. The coefficient of friction for concrete to soil may be assumed to be 0.27 for resistance to lateral movement. When combining frictional and passive resistance, the latter must be reduced by approximately 1/3. 20 REACTIVE SOILS Since groundwater in the Rifle area typically contains sulfates in quantities detrimental to a Type I cement, a Type II or Type I-II or Type II -V cement is recommended for all concrete which is in contact with the subsurface soils and bedrock. Calcium chloride should not he added to a Type II, Type I-II or Type II -V cement under any circumstances. 21 LIMITATIONS This report is issued with the under- standing that i1: is the responsibility of the owner, or his representative to ensure that the information and recommendations contained herein are brought to the attention of the architect and engineer for the project, and are incorporated into the plans. In addition, it is his responsibility that. the necessary steps are taken to see that the contractor and his sub -contrac- tors carry out these recommendations during construction. The findings of this report are valid as of the present date. Howev- er, changes in the conditions of a property can occur with the passage of time, whether they be due to natural processes or the works of man on this or adjacent properties. In addition, changes in acceptable or appropriate standards may occur or may result from legislation or the broadening of engineering knowl- edge. Accordingly, the findings of this report may be invalid, wholly or partially, by changes outside our control. Therefore, this report is subject to review and should not be relied upon • after a period of 3 years. The recommendations of this report pertain only to the site investigated and are based on the as- sumption that the soil conditions do not deviate from those described in this report. If any variations or undesirable conditions are encountered during construction or the proposed construction will differ from that planned on the day of this report, Lincoln DeVore should be notified so that supplemental 22 recommendations can he provided, if appropriate. Lincoln Devore makes no warranty, either expressed or implied, as to the findings, recommendations, speci- fications or professional advice, except that they were prepared -in accordance with generally accepted professional engineering practice in the field of geotechnical engineering. 23 To s RA' LI c.a _!c n R/FIE COHPRESS6..d -5/TE SITYDER &,.4 C011 JOB NO. Bs9aaJ DRAWN A Fid DATE 6-7-36 1 DEPTH SOIL BORING NO. 1 20 Feet EAST of EXISTING COMPRESSOR BORING ELEVATION: BLOW COUNT SOIL DENSITY WATER (FT.) LOG DESCRIPTION finch pcf % ' I N DESSICATED SURFACE SOILS _ ° I MAN-MADE FILL _ IDI LOW DENSITY, COMPRESSIBLE STRATA _ I SM SILTY SAND Occ. GRAVELS OF SILTSTONE ST 111.9 4.2% ° 1 1 Occ. PLASTIC SILT STRATA FIRM SI. MOIST 5 25/6 M5 I D I SILTY, LOW PLASTIC SANDY SILT SPT 56/12 3.4% — I Occ. CLAYEY SILT STRATA 96/18 _ I MAN-MADE FILL SI. MOIST _ LOW DENSITY, COMPRESSIBLE STRATA ST 101.8 2.9% 10_ SM SILTY SAND FIRM 10 51/6 I Occ. PLASTIC SILT STRATA SPT 122/12 2.9% _ I LOW COMPRESSIBLE I _' I ML -CL SILTY CLAY ALLUVIAL SI. MOIST SPT 22/6 6.0% 15, — I 11 COMPRESSIBLE VERY SANDY 15 39/12 56/18 i TD@17' _ 20 20 25 25 30_ 30 Blow Counts are cumulative for each _ 6 inches of sampler penetration. _ NO Free Water _ During Drilling 5-21-96 LOG OF SUBSURFACE EXPLORATION LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No. 854824 Drawn EMM 2 DEPTH SOIL BORING NO. 2 18 Feet SOUTH of EXISTING COMPRESSOR BORING ELEVATION: BLOW COUNT SOIL DENSITY WATER (FT.) LOG DESCRIPTION Inch pc f % MAN-MADE FILL DESSICATED SURFACE SOILS SM SILTY SAND FIRM SI. MOIST I I 1 Occ. PLASTIC SILT STRATA LOW COMPRESSIBLE I ML -CL SILTY CLAY CLAYEY, SANDY SILT STRATA ST 103.9 7.8% 5_ 1 II COMPRESSIBLE LOW DENSITY STRATA 5 09/06 1 ALLUVIAL SI. MOIST SPT 16/12 5.4% I VERY SANDY 22/18 — I I ® INCREASING DENSITY GRAVELS of SILTSTONE ML -CL SILTY CLAY MOIST ST 113.7 9.0% 10_ II COMPRESSIBLE MEDIUM DENSITY 10 _ TD@9' 15_ 15 20_ 20 25_ 25 30_ 30 — Blow Counts are cumulative for each — 6 inches of sampler penetration. — NO Free Water During Drilling 5-21-96 LOG OF SUBSURFACE EXPLORATION RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO . LINCOLN - DeVORE, Inc. SNYDER OIL COMPANY Date 6-7-96 Geotechnical Consultants Grand Junction, Colorado Job No. 85482-J Drawn EMM 3 DEPTH SOIL BORING NO. 3 17 Feet WEST of EXISTING COMPRESSOR BORING ELEVATION: BLOW COUNT SOIL DENSITY WATER (FT.) LOG DESCRIPTION finch pcf % _\I Tl MAN-MADE FILL DESSICATED SURFACE SOILS 1 i SM SILTY SAND SOFT 51. MOIST COMPRESSIBLE 1 ML -CL SILTY CLAY VERY STRATIFIED ST 103.2 6.0% _ 5 _ II COMPRESSIBLE LOW DENSITY STRATA 5 09/06 ALLUVIAL SI. MOIST SPT 14/12 6.3% SANDY STRATA 20/18 _ o 0 INCREASING DENSITY GRAVELS of SILTSTONE — I ML -CL SILTY CLAY MOIST ST 107.5 8.2% 10 II COMPRESSIBLE MEDIUM DENSITY 10 — TD@9' _ 15 15 20 20 25 25 30_ 30 Blow Counts are cumulative for each _ 6 inches of sampler penetration. _ NO Free Water _ During Drilling 5-21-96 LOG OF SUBSURFACE EXPLORATION LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No. 85482-J Drawn EMM Soil Sample Job Location ALLUVIAL & FILL, St SAND (SM) Sample No. (T)pical) Test by: LRS Natural Water Content 4.2% Soil Specific Gravity (Gs): 100 90 80 70 w .N 50 m CL 50 c U 40 _ 0- 30 20 10 0 125 001313LE to GRAVEL Boring No.: 1 Depth: 3' In -Place Density (pcf): 111.9 SAND SILTtoCLAY 75 50 3 .5 25 13% 12.5 95 4. 5 2 0.85 0425 0.15 0.9 0.02 0.005 Partic a Grain tize {mm} Sieve (mm) % Passing 5" 125 3" 75 2' 50 1-1/2" 37.5 1" 25 3/4" 19 12" 12.5 3/8" 9.5 # 4 4.75 #10 2 #20 0.85 #40 0.425 #100 0.15 #200 0.075 0.02 0.005 100 98 89 71 58 50 39 29.7 14 10 Effective size Cu Cc MM Plastic Limit (PL) NP Liquid Limit (LL) 18% Plasticity Index (PI) NP Shrinkage Limit (SL) Shrinkage Ratio DIRECT SHEAR: Shear Angle: Tan Shear Angle: Cohesion: MOISTURE/DENSITY RELATIONSHIP: ASTM Method: Max. Dry Density : pcf Optimum Moisture : HVEEM-CARMANY: FHA Soil Swell: 'R' Value @ 300 psi: 0_4 % Swell Displacement 300 psi: 135 psf Expansion @ 300 psi: ALLOWABLE BEARING (net): Standard Penetration (SPT): 1800 psf Unconfined Compression (qu): psf CONSOLIDATION: 1.78% © 904 psf @ SOFT STRATA 3.57% @ 2059 psf SULFATE SALTS: 100 ppm PERMEABILITY: K (20 C): Void Ratio: LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado SOIL ANALYSIS and SUMMARY deg. psf RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No. 85482-J Drawn EMM Soil Sample: ALLUVIAL SILTY CLA (ML -CL) Job Location: Sample No. 41 (T)pical) 2 Test by: LRS Natural Water Content 9.0% Soil Specific Gravity (Gs): 100 90 Bo 70 a 60 a so v U "m 40 0- 30 20 10 D COBBLE to GRAVEL SAND Boring No.: 2 Depth: 8' In -Place Dens ty (pcf): 113.7 Sara CLAY 125 75 50 3 .5 25 r 12.5 95 4. 5 0.85 0.425 0.15 0.E% 0.02 0.005 Particle G ain'S4ize (mm) Sieve (mm) 5" 125 3" 75 2' 50 1-12" 37.5 25 3/4" 19 12" 12.5 3/8" 9.5 # 4 4.75 #10 2 #20 0.85 #40 0.425 #100 0.15 #200 0.075 0.02 0.005 % Passing 100 99 99 99 93 76.9 48 32 Effective size Cu Cc MM Plastic Limit (PL) 15% Liquid Limit (LL) 20% Plasticity Index (PI) 5% Shrinkage Limit (SL) Shrinkage Ratio DIRECT SHEAR: Shear Angle: Tan Shear Angle: Cohesion: MOISTURE/DENSITY RELATIONSHIP: ASTM Method: Max. Dry Density : pcf Optimum Moisture : HVEEM-CARMANY: FHA Soil Swell: 'R' Value @ 300 psi: % Swell Displacement 300 psi: psf Expansion @ 300 psi: ALLOWABLE BEARING (net): Standard Penetration (SPT): 1800 psf Unconfined Compression (qu): psf CONSOLIDATION: 0.70% @ 2007 psf 1,69% @ 3990 psf SULFATE SALTS: 500 ppm PERMEABILITY: K (20 C): Void Ratio: SOIL ANALYSIS and SUMMARY deg. psf LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No. 85482-J Drawn EMM 0.7 0 D K 0.5 0 0.4 J 0- N 0.3 0.2 100 w 0 0 O 2 < 3 J • 4 O 5 Z O -6 0 F- 7 Z W -e 0 w 9 W o. 10 to 1000 APPLIED TEST LOAD - psf 10000 • 1o0 APPLIED TEST LOAD - psf 100 The Consolidation Test (ASTM 0-2435) Was Run By First Subjecting The Soil Specimen To A 'Seating' Load. The 'Seating' Load Is To Remove Slack From The Apparatus And To Provide An Accurate Point of Beginning. The Test Begins With The Specimen At Approximately Natural Moisture Content. The Sample is Loaded to Approximately 900 psf And Then Saturated With Water. Any Swell Or Collapse Of The Specimen Is Noted And The Loading Is Continued. After The Maximum Test Load, The Soil Specimen Is Unload, To Measure Rebound And Swelling Potential, After Consolidation. LOAD SUMMARY 106 ps/ SEATING LOAD 904 psI SAMPLE SATURATED 0.7 % SOIL COLLAPSE 0 % SOIL EXPANSION/SWELL 0.01 %SAMPLE REBOUND @ UNLOAD 4.65 % MAXIMUM CONSOLIDATION 4210 psi MAXIMUM TEST LOAD SOIL#: I SOIL TYPE: SM TEST HOLE #: 1 Q 3' SAMPLE Gs: 2.66 DIAMETER: 2.5" AREA inchs: .03409 SOIL CONSOLIDATION ASTM D-2435 LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No, 85482-J Drawn EMM INITIAL MAXIMUM LOAD FINAL LOAD SOIL DENSITY (pcf) 112.7 118.2 118.3 SOIL MOISTURE (%) 5.8% . 15.2% 15.2% CONSOLIDATION (%) -0- 4.65% 454% VOID RATIO (e) 0.473 0.405 0.403 SATURATION^1. 33% 100% 100% SOIL#: I SOIL TYPE: SM TEST HOLE #: 1 Q 3' SAMPLE Gs: 2.66 DIAMETER: 2.5" AREA inchs: .03409 SOIL CONSOLIDATION ASTM D-2435 LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No, 85482-J Drawn EMM 0.7 ▪ 0.6 O 17 - LL1 0.4 J a N 0.3 0.2 100 1000 APPLIED TEST LOAD - psf J 1 J w 0 cn z 1 Z O 2 3 O 4 0 -5 O • -8 O 10000 x 1000 APPLIED TEST LOAD - psf 10000 The Consolidation Test (ASTM D-2435) Was Run By First Subjecting The Soil Specimen To A' Seating' Load. The 'Seating' Load Is To Remove Slack From The Apparatus And To Provide An Accurate Point of Beginning. The Test Begins With The Specimen At Approximately Natural Moisture Content. The Sample is Loaded to Approximately 900 psf And Then Saturated With Water. Any Swell Or Collapse Of The Specimen Is Noted And The Loading Is Continued. After The Maximum Test Load, The Soil Specimen Is Unload, To Measure Rebound And Swelling Potential, After Consolidation. LOAD SUMMARY 106 psf SEATING LOAD 901 pal SAMPLE SATURATED O % SOIL COLLAPSE 0.22 % SOIL EXPANSION/SWELL 1.571 % SAMPLE REBOUND @ UNLOAD 1.69 % MAXIMUM CONSOLIDATION 3990 psf MAXIMUM TEST LOAD SOIL#: 11 SOIL TYPE: ML -CL TEST HOLE #: 2 @ 8' SAMPLE Gs: 2.65 DIAMETER: 2.5" AREA inchs: .03409 SOIL CONSOLIDATION ASTM D-2435 2 LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No. 85482-J Drawn EMM INITIAL MAXIMUM LOAD FINAL LOAD SOIL DENSITY (pcf) 113.7 115.6 115.1 SOIL MOISTURE (%) 9.0% 16.2% 18.5% CONSOLIDATION (%) -0- 1.69% 0.12% VOID RATIO (e) 0.455 0.430 0.437 SATURATION (%) 52% 100% 100% SOIL#: 11 SOIL TYPE: ML -CL TEST HOLE #: 2 @ 8' SAMPLE Gs: 2.65 DIAMETER: 2.5" AREA inchs: .03409 SOIL CONSOLIDATION ASTM D-2435 2 LINCOLN - DeVORE, Inc. Geotechnical Consultants Grand Junction, Colorado RIFLE COMPRESSOR EXPANSION RIFLE, COLORADO SNYDER OIL COMPANY Date 6-7-96 Job No. 85482-J Drawn EMM September 26, 1996 r Mr. Mark Wilson Snyder Oil Company 400 7th Street South, Suite 1200 Rifle, Colorado 81650 RE: NOISE ASSESSMENT, PROPOSED RIFLE COMPRESSION FACILITY EXPANSION Dear Hr. Wilson: ngineenng dynamics FAX PAGE 1 OF 2 1-970-625-4636 Voice: 1-970-625-4209 Engineering Dynamics, Inc. has completed the noise assessment for the proposed expansion of the Rifle compression Facility, located near Rifle Colorado. Referenced ir. this :.epart is EDI's report dated July 5, 1995; which was the noise assessment report for the existing facility. 1.0 Background The existing site utilizes one engine/compressor set; a Waukesha 7042 GL Engine, an Ariel TGR -4 Compressor, with J-11 Air Cooled Exchangers. The proposed addition is to add one Caterpiller 3516 Engine with an Ariel JGE- 4 Compressor. 2.0 Existing Noise Levels In EDT's report dated 7-5-95, the nearest receivers were identified, and noise levels at these receivers was calculated. Table 1 below is a reproduction of Table 2 from the 7-5-95 report, that identifies the receiver, distance to the receiver and calculated A -weighted Sound Pressure Levels (SPLs) at the receiver. Table 1: Calculated A -weighted SPL's at Nearest Receiver Receiver Distance A -weighted Identification Feet SPLs Nearest Property Line 80 71 Duran Residence 5000 35 Mobile Home Park 4300 36 Aside: SPLs are measured in units of dB, which is defined as a Base" logarithmic scale. Noise from two sources, that are close together in relation to the distance the noise is being measured at, are added together via Equation (1) below. SPL,,„,y = 10 * LOGio(10seu,:u + 10SPL2no) (1) Table 2 below shows the resulting noise level from adding two noise sources together. Table 2: Additive SPLs Source 1 Source 2 Resulting Level_ Level Level 40.00 dB(A) + 60.00 dB(A) = 60.04 dB(A) 40.00 dB(A) + 50.00 dB(A) = 50.40 dB(A) 40.00 dB(A) + 45.00 dB(A) = 46.20 dB(A) 40.00 dB(A) + 40.00 dB(A) = 43.00 dB(A) 3925 south kalamath street englewood, colorado 80110 r.'in.31 7A1-4.307 • fr,x (Rn.31 711-4379 GCS �`\ ,. Mr. Wilson May 31, 1996 Page 2 cngineenng dynamics The accuracy of the numbers in Table 2 has been carried to the 2nd decimal point to show the effect of adding dB's. Examination of Table 2 shows that adding two noise sources that have the same noise emission levels will increase the total noise 3 dB(A). 3.0 Equipment Noise Levels SPLs for the existing equipment and the proposed equipment are listed below; Existing Engine -Compressor Set 75 dB(A) at 50 feet. Proposed Engine -Compressor Set 76 dB(A) at 50 feet. The combined noise levels from both Engine -Compressor sets is 79 dB(A) at 50 feet. 4.0 Calculated Noise Levels The results of Section 2.0 indicate that after installation of the proposed 2nd engine/compressor site noise levels at the nearest receivers shall increase 4 dB(A); these increased levels are show in Table 3. Table 3: Calculated A -weighted SPL's at Nearest Receiver after Installation of Proposed Engine/Compressor Set Receiver Distance A -weighted Identification Feet SPLs Nearest Property Line 80 75 Duran Residence 5000 39 Mobile Home Park 4300 40 As a point of reference: measured noise levels for residential areas, similar to those near the compressor site, along I-70 in the Rifle area, are in the 40 to 50 dB(A) range. 4.0 Conclusions 1. The calculated noise levels at the Duran Residence and Mobile Home Park are in the same range as the existing background noise levels. Therefore, noise from the compressor station will be audible at these receivers. 2. The calculated noise levels are below the State of Colorado nighttime noise limit of 50 dB(A) for residential areas. 3. Therefore, no noise mitigation will be required for this proposed compressor site expansion. If you have any questions, please contact me at our Englewood office. Sincerely, ENGINEERING DYNAMICS, INC. S ),' Stuart D. McGregor Vice President 48:787 B-949 P-841 08/ - '95 10: 29A PG 1 OF 3 r DOC NOT •MILDRED ALSDORF GARFIL..j COUNTY CLFAK AND RECORDER ..1.00 RIGHT-OF-WAY GRANT (ROADWAY) KNOW ALL MEN BY THESE PRESENTS: That the undersigned, W.F. Clough, P.O. Box 686, Rifle, CO 81650, hereinafter called Grantor, the owner of the real estate hereinaftet' described, for Ten Dollars and other valuable consideration received, does hereby grant, bargain, sell, convey and warrant unto Snyder Oil Corporation, hereinafter called Grantee, its successors and assigns, a non-exclusive right-of-way and easement in and across the following described real estate in Garfield County, Colorado, to wit: Township 6 South, Range 94 West, 6th P.M. Section 13: Part of the NE/4 together with full rights of ingress and egress to and from same. For a more particular description of the right-of-way and easement, see the attached Exhibit "A" which by this reference is incorporated herein. This right-of-way and easement is granted for the purpose of affording the Grantee access to said lands and to permit Grantee to occupy and utilize said real estate for roadway purposes insofar as Grantee's activities are reasonably necessary to its current or future oil and gas. operations on the subject or adjacent lands. Such activities include, but are not limited to such common oil industry practices as transport of drilling rigs, workover rigs, tractor trailers, hauling drillpipe, casing and production tubing, water hauling trucks, perforation and fracture treatment trucks, oil tankers, daily access by pumpers and meter readers utilizing standard sized pickup trucks, and other equipment and vehicles necessary, in Grantee's opinion, to carry on Grantee's oil and gas operating activities. Said use of the roadway shall extend to Grantee, its employees, agents, contractors and licensees and their equipment of whatsoever kind. The right-of-way herein granted shall be eighteen feet in width, the centerline of which is described in the attached Exhibit "A." In consideration of the Right -of -Way grant, both parties agree as follows: a. Grantor, its heirs or assigns, shall without obligation of maintenance, have the right to use the roadway for any and all passage purposes, provided that Grantee shall not be liable for any injury or damage to Grantor or third parties resulting from such use. Grantor's use shall not impair or interfere with the exercise by Grantee of any of the rights herein granted. Grantor shall not create or permit any obstruction, building, water body, engineering works or other structure over or on the right-of-way and easement. b. Grantee will indemnify and hold harmless Grantor from any legal actions as a consequence of Grantee's activities on said roadway. c. Grantee does not and shall not claim at any time any interest or estate of any kind or Retum to: SNYDER OIL CORPORATION 400 7th St. South Sulte 1200 Rifle, Colorado 81650 �td 09919 opeaolo0 `end oog t e11nS 14100S 'IS y.L 004 NOLLV8Ode00 110 e30ANS :ol uanlee 602h -529 - o1b os, /3 02 a0-!,3 oats 7 i rn55 ' no5 '71Srill- OQ/i T•,1651.1 -7 -4.'1/4 o!Ignd haelof Ly -L-0/ :sandxg uocssiunuo0 Avg leas repwo pue pueq !w ssaraitt ynhol i L': j '3'M Lq `5661 'AIN' 30 Rep sup. aw aiojaq pa8palmou�loe sem luamnnsw 8wo$0103 antlava 3o Assuiti 1 OGY1101O0 dO a.LVIS q2nolaxM va-r ado,Lntyue '5661 'A'Iflf JO AVO "b/ SIMI QH3.f10HXH .aapunaaay suopeaado w pa2e&ua aaluea° 3o aolottwoa luapuadapul Aug 8mpnloui `su2!sse pue ssossaaans `sanneluasaidai le Mai `snag anpoadsaa nate pue olaiay soured ay. uodn 8ulpulq aq pug of pualxa hays puawaaa8e sly. uodnaaaym ;oaaay suowpuoo-pue suuai ayl3o BE of opaaay salved ail pwq limp passaadxa °nogg uoueiapisuoa alp 3o °°Wear 9yl Xq luamXed ayp pue puea8 slip 3o aoueldaooy luawasea pue ,Sem Jo-lySia slip sin aalueap Xq passaaae sailiil0E3 paleiaosse set pue P0 pe 3o luaumopuege luauewaad ail uodn aleuiuual lleys aalueuo 02 30411919 Xq paluea8 uiaiay slq p ply 'p Sgaaay paluw8 luawasea pug Arm -Jo -1'0p ail ueyl aaylo `,iempeoa alp Jo asn sll Xq 30 ma slip 30 anvin ,Sq 6empeoa ail v aanaosleyM pualxa C dO Z 'Jd V62:07 9E 790 Z179 -d 6t6-0 LBL 187' EXHIBIT "A" Attached hereto and madea p&� hereof that certain Right -of- , Grant (Roadway) dated the /47/h day of July, 1995, from W.P. Clough. [I� ilkAir 411 pow at / a,6hna6 0 W v S603S'1S'C - 76671' PONCP LIN( POI$IW POLL ( oL/pui 0 CaNnnp w o s»lam Natural Ca! O Snubber. t Manifold • U.S liO/WAY 6 � Power PWr (NCI. Return to: \ SNYDER OIL CORPORATION , WI". 400 7th SI. South Sulte 1200 Rifle, Colorado. 01650 Holum, Coios met Dote Sco/e: 1' a 60' 1 S7.1110'W - 31.55' NOOa3I'IS'W - 100.)1' JI11 21-1395 0/J: 59 FROM 1.10F41-1IPI4 OPP.. DLNUER 10 , 1;Ob?S4bJb t', OS wee _% ARIEL JGH and JGE COMPRESSORS COMPRESSOR FRAME SPECIFICATIONS JGH/2 JGH/4 JGE/2 JGE/4 Stroke, inches 4-112 4-112 4-Ir2 4-1/2 RPM j to 1200 to1200 to 1500 to 1500 Piston speed. FPM to 900 to 900 to 1125 to 1123 Number of throws 2 4 2 4 Horsepower 1 to 680 to 1360 to 1070 to 2140 Crankshaft ( (from bottom). inches 1 17 17 17 17 Maximum Width, inches 1 139 - 139 139 139 Maximum Length, inches 53 95 53 95 Average Weight with Cylinders. lbs. ! 6.500 11,000 6,500 11.000 Oil Pump Capacity. GPM 14 25 17 31 Oil Heat Rejection, BTU/HR I 14.000 _ 24,000 '."'.000 30.000 Sump Capacity, gallons 15 37 15 37 Internal Rod Loads Double Acting Compression 4- Tension. lbs. 48.000 48.000 60.000 60.0000 Teuaiou. lbs. 24,000 24,000 30.E Compression. lbs. 30.000 30.000 32.000 32,000 Single Acting Tension, lbs. 24,000 24,000 30,000 30.000 . JUN -21-1996 0903 FROM TIDEWATER COMP., DENVER TO 19706254630 P.12 Emission Rate Cakolationa Unit # Caterpillar G3516TALE Engine rathiothp) 1100 pm/bhp/hr lb/hr ton/yr NOx 1.PJ 6.02 21.99 CO 1.5 4.18 18.32 NMHC 0.5 1.39 6,11 Exhaust Information 1liomme. 72.00 in Flow rate 7418 acfm Velocity 167.4 ft/sec N, aapht 19,5 ft TeMperatore 883 deg F Fuel Consumption Fuel Content 1000 Btu/co.ft, 6tu/nhp/hr MMHtvfir MMscflyr Rete 7767 8.54 86.07 Notes Emission dna calculated Iblhr and ton/yr-enlieaicn rats: Ib/hr = gm/bhp/hr • (1 Ib/453.8 gml • hp tonefyr = Ib/hr • (6780 hr/yr{ • (ton/2000 Ib/ exhaust va(octty Vel = flow rate / area, area = (3.1416/4{•0'2 fuel consumption ram in MMBtu/hr MMBtu/hr = Etu/bhpmr • hp/1000000 Page 1 tic TOTAL PAGE.Ct3 ""° Spak-JgIII[ISMIIdushialEnEg(nePhys1/alFad oR 1 JUN -21-1996 0903 FROM TIDEWATER COMP., DENVER TO 19706254636 P.11 101 CENTERLINE CF CRANKSHAFT an CENTERLINE OF ENGINE REAR FACE OF GYLMDER BLOCK Iwl Sec G ne,I Dlmemmn Drawl g 7Waa52 foe adds cm diSi arta NA initmmtadon 103• JACKETWATERIM.ET 104- JACKETWATEROUTLET 125- AFTEROCOERWATERINLET 126- AF TACO .ERWATEROURET 201- RIELMLET 401- MULLET 402- E70fAUST RD . REMOVALnw6TANCG Now: Genf CordIgnlm not to be used for Nsmlemn. LEfooS72!C440I 11UER UAW 6 :So Tater•iaar Inc 'Thee in U. SA to 1OT16- .JUN -21 -114b 0902 FROM TI DELA TEP. COMP. DENVER TO 19706254636 P.10 SroIA-9O Fuel Consumption Data (Contrd) 1 tat 448 987 748 896 Sr(1 NA 200 400 600 800 1800 1200 hkp 6lW 8a 189 1554 14.11 12.7a 113 99 149 298 448 597 746 89s I •■•••,aa III 1111111,,, M an 11191 ) 'm a 10001 ceaa •rall s\\w n 8000" 2000 I00041 3900-183 I19.1 •■ •• 7ti 11 °' 3�,\~1�.+' 1200 „ 700°�11wwiiwwae��w _ T 1000 Tm 'wee 'va . tpm t Tom WC°1 800) 1000- �„ f nv p11i- _9000 155 lial Sr(1 NA 200 400 600 800 1800 1200 hkp 6lW 8a 189 1554 14.11 12.7a 113 99 200 400 600 800 1000 1200 bhp a sru VAN nor 443 547 746 895 •UI 149 298 448 597 746 89s I •■•••,aa III 1111111,,, M an 11191 ) 'm a 10001 ceaa •rall s\\w n liGli rlinU• % 3900-183 I19.1 •■ •• 7ti 11 °' 3�,\~1�.+' „ 700°�11wwiiwwae��w 2010 T 1000 Tm 189 1000- f nv 155 lial 0000 _ .!"'_ 14.1 116111Z7 9000` )� 11.Z &` 91 7000�� 200 400 600 800 1000 1200 bhp a sru VAN nor 443 547 746 895 •UI •�� � n. I •■•••,aa III 1111111,,, M a. ) 'm a 10001 ceaa •rall s\\w n liGli rlinU• % I19.1 •■ •• 7ti 11 °' 3�,\~1�.+' „ 700°�11wwiiwwae��w 200 400 000 300 1000 1200 NFO CONIXT101116 nenlnnxs Rena uebac :Jan SAE J1340 sanOwlcondlnant a 10616Pa (29.61 ,n419) and 2500 (77'F). Masa slogs also appy W90 3046. 4 condi= al 105 It•Pa (®.81p5T HB1•ZTC (31'F); N Ig71. arat OS pr,q sandal71110 sadden cans of 991Oa pat ii -)q), aft dWF7. Menus an, bared an Sy naurdt Bas 1e*9 1 mar haat oaks at 35_5.4 MFH at 0468to1111. Weans m;u& WS. and Fm cnnposidon from standard cantata may nice a rcd Gaon M crate aaoraaWoaar. Ta dnadna padaarmmded radnaapply 16IPS m (LOCO10 and 29'G (W4 Fa apprleadars'NM Nat ad hese Rt=MC rat Gate Osaka. MS* asaadad m*mG aOply m 150 m (;DO al and are 064). Far appladaraabove envie emu Aaam R Trac 805 m (1WWa fp end IS%pai 5St (/6'F} • .._.. ad apdadieea wing V dot. .ew Mia Tho eerrnalvad 3 ii of skit 131) b and In ilia Okad°' IQ miss to ark** torAve caffilurent SFO rNadmrtadard ewe ma4taaa8u+- 90St" mdWmO040TWOW IffttloMpirare eltF PrG1- We Nita thacookroaila idellenceralwea 17 Pre). ao dao is woad an Ni^da'd m.r son t>5C1 503 kn. These nags do na Maw for eaadaad carnal!, 1 JUN -21-1996 09 02 FROM TIDEWRTER COMP.. DENVER TO 19706254636 P.09 L INDUSTRIAL SPARK -IGNITED ENGINE GENERAL SPECIFICATIONS Continuous Ratings (bhp) Aspiration 1200 ipm LE TA -90 LE TA -130 670 TA -90 610 TA -130 STD NA Physical Factors 1150 1085 1085 1050 680 LE TA STD TA SFD NA Height 1869 mm (702 in) 1959 mm (>s21n) 1911 mm (752 In) 1707 mm (67.11m 1709 mm (67.1 tr) 1661 mm (61.6 m) CAT 3516 SI Engine Trim - Spark -Ignited A6042600: Mare Aspirated (NA) or tube 01�C A 6flartooled8L (178 gat) Walar Syslom. Jacked 402L (1089x0 Capacity wfo Radiator - 2201. (58 gal) 11001pm 1050 996 995 965 626 1000 rpm 955 900 905 875 585 900 rpm Lergti 3327 mm (131 t1) 73t^. mini (121 ;M 9211 men (126.4 h) Watla 80221g 17.670 b 7931 l9 17.470 b 7446 log 16.400 b 860 810 815 790 525 No of Cylinders -v-18 ewe -17D mm (43.70) Straka -190 mm (7S m) Raton oispbawn eqt - 67.4 bar (4210 Cu In) Cyde- Four straw Compression Rasa -8:1 800 rpm 785 720 725 700 070 700 rpm 670 630 635 615 390 LE TA -9g 149 Fuel Consumption Data Otte 13000 Isr era 498 597 746 895 18.3 9 13000 jj 1600 1row 000 i H � + j MillSi19 21 1F IMF1* 6511000 10000 _ ■■•14.1 IBB 2\\\ aJs.t _ L0 I� 1x7 11.3 99 rp 1r-_-- t1' aw ,,, F000 7900 M1.1111,11E1 1 r i 200 4110 800 800 1000 1298 t0a 18.3 18.9 15.52 14.11. 12,. 11.3 99 LE 714130 41 6tN 3000 Isr era 498 597 746 895 18.3 9 jj 1600 1row 000 ���G � + j MillSi19 21 IMF1* �� ■■•14.1 IWC !COD 2\\\ aJs.t L0 I� 1x7 11.3 99 t1' aw ,,, F000 M1.1111,11E1 270 400 ism 6,-LA((,J0( P- tit -A S/Srite' &O 800 1000 1200 thp th a 1 -ILIA -21-1996 0901 FIr.PI I;i44a.f(i". rPIP.. • CATERPILLAR Le11.t,2546 1,6 P.08 3516 Spark -ignited Industrial Engines Standard and Low Emission X1150 hp OTANDARD PACKAGE AARANCIEMPNT Air cleaners; er WM sante 9dicil oi Breather, Clanks** CaatretG Natural Ciao Cooler, Ludrirating Oil F7iter, WbdCaing Oil, RH Flywheel Housing SAE T)0 Governor, Woodward Arbon System Anionic III Instrument Pal AH B Gage Panel (STD) 12 Gauge Panel (LE) Oil Prt sttaa Coolant Temperature 04 Pressure Citgranrial Intake Mtrii(oid Temperature (TA Only) Presse (LE) Service 41eor Exhaust Pyrometer (LE) !Am Eyes Mnn,f lids. Emdust Warerroo:a Pumps, Bear -Driven Allem:oder Water (TA any) Jacket Nater Raiz, Mouriing, rQ inch Ragulemt, Gas Pressure SAE Standard Renton Thermostat and Hovsfing TREidtal uibrtalon Dampe• OPTIONAL EQUIPMENT F hTearperature(LEoar) &MustReir'®s Paesr le arengSst L Tachometer Low STU Armament s angers MHeed for 3161 CSA Ignitor. Air-lo-Ak Attelconier Connection 08/::/95 Ua:.7U FAS 15053347547 TIDEWATER 10002 14-1/8" JGX Cylinders CYLINDERS The first Ariel cylinders were designed in the late 1960's. Earlier research indicated that mod- ern high speed, short stroke cylinders do not require the water cooling necessary to the previ- ous generation of compressor cylinders. The innovative design of Ariel cylinders eliminates major maintenance problems associated with water cooling such as scaling and corrosion and avoids preheating of inlet gas, reduces gas pulsa- tions, reduces pressure drops and enhances over- all efficiency. Piping is greatly reduced. There is no parasitic drain of horsepower from a water pump. Overall weight is reduced as is the cost of fabrication. Cylinders are ion-nitrided, increasing surface hardness which reduces cylinder bore wear to an absolute minimum. Ariel cylinders, com- bined with the innovative design of the entire Ariel compressor, have earned Ariel the reputation for the lowest operating and maintenance costs of any gas compressor available today. CYLINDER SPECIFICATIONS Class Operation Material Bore MAWP 44/8" K Double Acting Forged Steel 44(' & 45i8" 3500 psi Ary" K Double Acting Cast Steel 5" & Ala' 2500 psi 5318" K -HP Double Acting Forged Steel 5" & Ars" 3500 psi 61,: K Double Acting Ductile Iron 508" & 644" ' 2050 psi 644" 1C-1IP Double Acting Ductile Iron 57ry" & 61/4" 2435 psi 744' K Double Acting Doodle Iron 634( & 74." 1900 psi 7'/f K -HP Double Acting Ductile ion 6h4" & 7l4" 2200 psi 8318' K Double Acting Ductile loo 7b," & 8313" 1800 psi 951,- K Double Acting Ductile Iron 948' & 95," 1270 psi 11" K Double Acting Ductile Iron 1043" & 11" 845 psi Il" K -HF Double Acting Ductile Iron 1042' & 11" 1000 psi 124," K Double Acting Ductile Iron 12'- & 124," 635 psi 124," K -HF Double Acting Ductile Iron 12" & 1243" 700 psi 1348" K Double Acting Ductile Ion 13b," & 141,3" 635 psi 1514' K Double Acting Ductile bon In," & 1574" 500 psi Inc K Double Acting Ductile Iron 173:4" & 170," 250 psi 2014" K Double Acting Ductile Iron 195;3" & 20"," 200 psi Double Acting i Ductile Leon 22" 170 psi 241:3^ K Double Acting Ductile ion 241,8' 140 psi 264:" K Double Acdng Ductile Iron 264," 125 psi 25'3" KT Tandem -SANE I Forged Steel 21h" & 25ry" 7300 psi Py" KT Tandem -SALE I Forged Steel 5" & 51/41' 3500 psi 5',j' KT Tank 3AHE Cast Steel 5" & Ary' 2500 psi 91/," KT Tandem -SACS Ductile Iron 948' & 95I 1210 psi JGK4 frame ieF..i raeesteelcraweaft Gray or&cite iron 'bora, available with or without ,fetthis! mizheas. babbiretAce nuface wi,M1 a4414' ._.a inr:madeadpin Yhmuln-kit TO • • ten ..n...aft FEATURES Rugged Crankcase Heavily ribbed, (with spacer bars for stiffening) high strength cast iron base with removable lightweight, aluminum top cover and removable end covers for ease of access. Heavy Duty Crankshaft Forged steel precision machined with integral counterweights. Precision Bearing Shells Precision -machined, tri -metal main and con- necting rod bearings. Rugged Crossheads and Guides Cast iron crosshead guides, exter- nal ribbing and removable side covers. One piece, long life crossheads with direct full pressure lubrication at top and bottom for minimum wear. Hardened and ground, steel crosshead pins. Rigid Connecting Rods Forged steel four bolt, heavy duty 11" section. Quiet Auxiliary Drive Fully enclosed and continuously lubricated chain drive adjusted by positive positioning eccentric vernier. Oil and Dust Seal Foolproof, non -contacting crankshaft oil seal plus reliable non -wearing dust seal. Proven Cylinder Design Ductile iron non -cooled compressor cylinders with ample nozzles and large gas passages. High Strength Bolting Grade 8 bolts or B-7 studs on all pressure parts. All bolting designed for accessibility. Efficient Valving Plate type valves designed for modem speeds utilizing non-metallic valve plates as standard. Selected to adhere to established. low valve velocity standards. Durable Pistons One piece, wear resistant ductile or gray iron in all diameters. Available with or without rider rings. Stout Piston Rods Short, stiff, precision ground alloy steel piston rods with locking crosshead nut. Close tolerance threads are 1/4" under rod diame- ter for easy installation through packing. Piston Rods are ion -nitride hardened. Full Pressure Lubrication A chain driven tube oil pump provides pressurized cooled oil through a full flow oil filter to all moving parts in frame. A block distribution system supplies metered oil to cylinder walls and rod packing. Stainless steel tubing used throughout. Priming pump for start - Head -End Variable Volume Pocket Unloaders Ductile iron with stainless steel stem. sealed by Teflon Chevron packing and protected by machine tool grade bellows. Serviceability Entire unit is designed for ease of repair. All components are readily accessible. 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