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Facility Type	Facility ID/ API	Facility Name/ Number	Operator Name/ Number	Status	Field Name/ Number	Location	Location ID	Related Facilities
LOCATION	335925	CHEVRON TR 24-28-597	TEP ROCKY MOUNTAIN LLC 96850	AC 11/1/2025	TRAIL RIDGE 83825	GARFIELD 045 SESW 28 5S97W 6	335925

COGIS - Conditions of Approval Results

Type	Source Document	Conditions of Approval
Agency	Form: (02A) 2585409 02/25/2010	Operator must ensure 110 percent secondary containment for any volume of fluids contained at well site during drilling and completion operations. If fluids are conveyed via pipeline, operator must implement best management practices to contain any unintentional release of fluids.
Agency	Form: (02A) 2585409 02/25/2010	The moisture content of any drill cuttings in a cuttings pit, trench, or pile shall be as low as practicable to prevent accumulation of liquids greater than de minimis amounts. At the time of closure, the drill cuttings must also meet the applicable standards of table 910-1.
Agency	Form: (02A) 2585409 02/25/2010	No portion of any pit that will be used to hold liquids shall be constructed on fill material, unless the pit and fill slope are designed and certified by a professional engineer, subject to review and approval by the director prior to construction of the pit. The construction and lining of the pit shall be supervised by a professional engineer or their agent. The entire base of the pit must be in cut.
Agency	Form: (02A) 2585409 02/25/2010	Reserve pit must be lined.
Environmental	Form: (04) 400678817 09/15/2014	COA- APPROVAL OF THIS PLAN IS CONTINGENT UPON ANALYTICAL LABORATORY RESULTS FOR REPRESENTATIVE SAMPLES ENCANA WATER FROM LOCATION ID: 334939 and URSA Location ID 418828 RESULTS SHALL BE SUBMITTED TO THE COGCC WITHIN 45 DAYS OF APPROVAL OF THIS PLAN. ANALYTICAL LABORATORYANALYSIS SHALL INCLUDE: •VOLATILE ORGANIC COMPOUNDSEPA METHOD 624 (GC/MS) •SEMI-VOLATILE ORGANIC COMPOUNDS EPA METHOD 625 (GC/MS) •DISSOLVED METALSEPA METHOD 200.7 (ICP) •DISSOLVED INORGANICS (NON-METALS)EPA METHOD 300.0 (IC) oBr,Cl,F,Nitrate/Nitrite, Sulfate •GENERAL WATER QUALITY PARAMETERS oSPECIFIC CONDUCTANCEEPA METHOD 300.0 (IC) oHARDNESSEPA METHOD 130.1 oTOTAL DISSOLVED SOLIDSEPA METHOD 160.1 opHEPA METHOD 150.2 oALKALINITYEPA METHOD 310.1 •GROSS ALPHA AND BETA RADIOACTIVITYEPA METHOD 900.1
Environmental	Form: (04) 400864327 11/03/2015	PRODUCED WATER OR FLOWBACK WATER OR OTHER EXPLORATION AND PRODUCTION WASTE SHALL NOT BE TEMPORARILY STORED IN MODULAR LARGE VOLUME STORAGE TANKS (MLVSTs). PRODUCED WATER OR FLOWBACK WATER SHALL BE TEMPORAILY STORED IN FRAC TANKS
Environmental	Form: (04) 400864327 11/03/2015	PROVIDE PRECAUTIONS/SECONDARY CONTAINMENT THAT WILL BE INPLACE FOR BOTH BELOW GRADE AND ABOVE GRADE PIPELINES AS THEY CROSS STREAMS, SENSITVE AREAS, OR ALONG SENSITIVE AREAS.
Environmental	Form: (04) 400864327 11/03/2015	WPX AND OXY WILL EACH SEPERATELY SUBMIT AN ANNUAL REPORT TO THE COGCC SUMMARIXZING THE TRANSFER OF PRODUCTION WATER (BOTH AS TRANSFER AND RECEIVING OPERATOR) DURING THE CALENDAR YEAR AND INCUDING LABORATORY ANALYTICAL RESULTS FOR REPRESENTATIVE SAMPLES(S) OF THE PRODUCTION WATER PROVIDED AS THE TRANSFER/RECIEVER. THE ANNUAL REPORT SHALL BE SUBMITTED ON OR BEFORE THE ANNIVERSAY OF THE FIRST DATE OF TRANSFER.
Environmental	Form: (04) 400864327 11/03/2015	BOTH WPX AND OXY SHALL NOTIFY THE COGCC VIA SUNDRY IMMEDIATELY UPON TERMINATION OF ACTIVITIES.
Environmental	Form: (04) 400864327 11/03/2015	OPERATOR PROPOSES THAT THIS FACILITY WILL BE IN OPERATION FOR A PERIOD OF 90 DAYS. THIS TRANSFER CAN BE EXTENDED VIA SUNDRY REQUEST, HOWEVER, SHOULD THE OPERATION OF THIS FACILITY CONTINUE MORE THAN ONE YEAR, A FORM 28 SHALL BE SUBMITTED AND APPROVED BEFORE THE ONE-YEAR ANNIVERSARY DATE OF THE FIRST USE OF THE TRANSFER FACIITY/LOCATION.
Environmental	Form: (04) 400864327 11/03/2015	OPERATOR MUST IMPLEMENT BEST MANAGEMENT PRACTICES TO CONTAIN ANY UNINTENTIONAL RELEASE OF FLUIDS, INCLUDING ANY FLUIDS CONVEYED VIA TEMPORARY SURFACE PIPELINES.
Environmental	Form: (04) 400864327 11/03/2015	IF LOCATIONS ARE IN A SENSITIVE AREA BECAUSE OF ITS PROXIMITY TO SURFACE WATER OPERATOR MUST ENSURE 110 PERCENT SECONDARY CONTAINMENT FOR ANY VOLUME OF FLUIDS CONTAINED AT THE WATER HANDLING FACILITY SITE DURING NATURAL GAS DEVELOPMENT ACTIVITIES AND OPERATIONS; INCLUDING, BUT NOT LIMITED TO, CONSTRUCTION OF A BERM OR DIVERSION DIKE, DIVERSION/COLLECTION TRENCHES WITHIN AND/OR OUTSIDE OF BERMS/DIKES, SITE GRADING, OR OTHER COMPARABLE MEASURES (I.E., BEST MANAGEMENT PRACTICES (BMPS) ASSOCIATED WITH STORMWATER MANAGEMENT) SUFFICIENTLY PROTECTIVE OF NEARBY SURFACE WATER. ANY BERM CONSTRUCTED AT THE WELL PAD LOCATION WILL BE STABILIZED, INSPECTED AT REGULAR INTERVALS (AT LEAST EVERY 14 DAYS), AND MAINTAINED IN GOOD CONDITION.
Environmental	Form: (04) 400864327 11/03/2015	Provide frequency or schedule for monitoring the WPX flowlines that will be used to convey fluids for this transfer.
Environmental	Form: (04) 400864327 11/03/2015	Provide the most current flowline integrity results of the WPX flowlines that will be used to convey fluids for this transfer.
Environmental	Form: (04) 400864327 11/03/2015	Provide history of spills or releases from the segments of WPX flowlines that will be used to convey fluids for this transfer.

COGIS - Best Management Practice Results

BMP Type	Source Document	Best Management Practices
PROPOSED BMPs	Form: (07 ) 0 1/23/2012	Site Specific Conditions and Storm Water Management Plan SITE DESCRIPTION: Project/Site Name: Chevron TR 24 -28 -597 Field Name: Trail Ridge Location: Section 28, Township 5 South, Range 97 West CDPS Permit #:COR- 03A116 CDPS Permit Date: 05/16/06 Site Type: Well Pad SWMP Administrator: Mike Gardner Estimated Disturbance: —9.5 Acres Inspection Type: 14 day upon construction; 30 day upon interim reclamation SOIL AND VEGETATION DESCRIPTION: Soil Types: Parachute - higul complex, 5 to 30 percent slopes Parachute - Irigul -Rhone association, 25 to 50 percent slopes Soil Erosion Potential: Moderate — Severe (Erodibility 0.50 — 0.75; USDA -NRCS WSS) Existing Vegetation Description: Shrubland — oak, serviceberry, sage — with assorted grasses Pre- Disturbance Vegetative Cover: —55% Seed Mix for Interim Reclamation: Chevron High Elevation Final Stabilization Date: TBD RECEIVING WATERS Name of Receiving Waters: Short Gulch Distance to Receiving Waters: —0.63 Miles Non -Storm Water Discharges: None Anticipated Description of Potential Pollution Sources: Refer to Trail Ridge Field Wide SWMP PHASED BMP IMPLEMENTATION : BMPs will be installed prior to, during, and immediately following construction as practicable with consideration given to safety, access, and ground conditions at the time of construction. Due to the nature of the topography at the site, any number of BMP combinations may be utilized at any phase of the project. Constant efforts will be employed to limit the extent of vegetative disturbance at the time of soil exposure during all construction activities and structural BMP implementation. Through all phases of the project native vegetation will be preserved to the extent possible and utilized as a BMP to filter storm water and eliminate the possibility of pollutant laden storm water from reaching live water. As practicable, all topsoil stockpiles will be located as to divert run -on and will be temporary seeded to maintain soil structure, microbial activity, soil fertility, establishment of invasive species and protect from erosion. For BMP descriptions and installation details, refer to the Trail Ridge Field Wide SWMP and the "Storm Water and 404 Handbook of Best Management Practices (BMPs), January 2006." Construction Phase: A perimeter earthen berm will be constructed around the edge of the pad during well pad construction to prevent the potential offsite transport of pollutant laden storm water. A perimeter sediment ditch will be constructed along the outside edge of the well pad to prevent offsite transport of any potential pollutants carried via storm water runoff. Sediment traps will be implemented along the perimeter sediment ditch near the northwest and southwest comers of the well pad and approximately mid -reach along the southern boundary of the well pad; to eliminate sediment transport off location by increasing residence time of the storm water and therefore settling of suspended sediment. All fill slopes will utilize native rock armoring to stabilize the slope and reduce erosion potential during the construction phase. The use of redundant BMPs is employed to alleviate the potential of sediment or other pollutant laden storm water from migrating offsite due to failure of one or more of the sequential BMPs implemented. Additional structural BMPs will be installed as necessary to ensure site stabilization and to protect surface water quality. Interim Reclamation Phase: After the well pad has been constructed, drilling and completions are completed, with production facilities in operation, the site will be graded to reduce cut and fill slopes to minimize the overall size of the well pad. Where practicable, the topsoil stockpile will be spread onto the re- contoured surface. Any remaining topsoil will be seeded to maintain stabilization and continued nutrient cycling. The well pad will be re- seeded upon completed grading activities. Permanent structural BMPs will be installed and maintained as necessary to assist in site stabilization during interim reclamation. Final Stabilization Phase: After all wells have been plugged and abandoned, and production facilities are removed, the well pad will be graded to restore pre - disturbance contours. Any remaining topsoil will be spread onto the re- contoured surface. The well pad will be re- seeded upon completed grading activities. Storm water inspections will continue until the site has reached a stabilization level of 70% of pre - disturbance conditions. Once the site reached final stabilization, a post construction storm water management program will be implemented per COGCC Final Amended Rules (December 17, 2008), Rule 1002 (f) (3). NOTE: This document is intended to serve as a preliminary plan to document proposed stormwater management practices for this project. Any additional/alternative site stabilization and /or reclamation efforts may be employed in reflection of unforeseen site conditions or resource availability, and will be updated into the Ryan Gulch Field Wide SWMP per requirements of CDPS Permit COR- 03A115, regulated by the Colorado Department of Health and Environment's (CDPHE) General Permit No. COR- 03000.
PROPOSED BMPs	Form: (07 ) 0 1/23/2012	Proposed BMP's Williams Production RMT Company Chevron TR 24 -28 -597 Pad Attachment to Form 2A Williams Production RMT Company (Williams) is in the process of working with its surface owner, Chevron U.S.A. Inc (Chevron), to establish operational guidelines which incorporate measures recommended by the CDOW for protection of Greater Sage Grouse. For all well pads that are located within Greater Sage Grouse RSO lek areas, Williams and Chevron will enter into a separate Wildlife Mitigation Agreement, which will include additional measures above and beyond those laid forth in the Surface Damage Agreement for protection of Greater Sage Grouse Habitat. • Maximize the use of directional drilling to minimize habitat loss /fragmentation. • Phase and concentrate development activities, so that large areas of undisturbed habitat for wildlife remain. • Maintain undeveloped areas within development boundaries sufficient to allow wildlife to persist within development boundaries during all phases of construction, drilling, and production. • Minimize rig mobilization and demobilization where practicable by completing or recompleting all wells from a given well pad before moving rigs to a new location. • To the extent practicable, share and consolidate new corridors for pipeline rights -of -way and roads to minimize surface disturbance. • Engineer new pipelines to reduce field fitting and reduce excessive right -of -way widths and therefore subsequent reclamation requirements. • Plan new transportation networks and new oil and gas facilities to minimize surface disturbance and the number and length of oil and gas roads through the utilization of common roads, rights of way, and access points to the extent practicable. • Post speed limits and caution signs to the extent allowed by surface owners, Federal and state regulations, local government, and land use policies, as appropriate. • Use remote monitoring of well production to the extent practicable. • Use wildlife- appropriate fencing where acceptable to the surface owner. • Install and utilize bear -proof dumpsters and trash receptacles for food - related trash at all facilities that generate such trash. • Construct habitat improvement projects as practical. • Commensurate with the language set forth on the Surface Damage Agreement, interim and final reclamation shall be performed as early as practical and to the greatest extent possible. • Use wildlife appropriate seed mixes wherever allowed by surface owners and regulatory agencies. • Mow or brushhog vegetation where appropriate, leaving root structure intact, instead of scraping the surface, where allowed by the surface owner. • Apply an aggressive, integrated, noxious and invasive weed management plan. Utilize an adaptive management strategy that permits effective response(s) to monitored findings and reflects local site geography and conditions. Strip and segregate topsoil prior to construction.
PROPOSED BMPs	Form: (07 ) 0 1/23/2012	as noted on the Form 2A. Actual depth to ground water is no less than 150' from pad surface, as estimated by extrapolating water levels from existing wells in neighboring township T6S -R97W. 6. Pad is not located within a sensitive area as defined in the COGCC Final Amended Rules. Pad is not located in close proximity to shallow ground water, surface water, public water intakes, domestic wells, ground water basins or surface water supply areas. 7. Pad is currently scheduled for a May 1, 2010 spud date. Drilling rig release date is expected to be August 15, 2010. We anticipate completing these wells during the fall of 2011, followed by interim reclamation to begin no sooner than May 2012. Drilling and completions timelines are subject to change in the event that Williams Production elects to pursue additional or fewer wells off this pad. 8. There will be a total of two pits on this pad. Existing reserve pit will be re -lined and used in its current location. The lined reserve pit will be reclaimed after drilling activities are completed. There will also be a lined production pit located on this pad. This production pit will be expanded after the reserve pit has been reclaimed. The attached Form 15 requests authorization to construct the lined production pit and pit expansion. Production pit will be kept open and used to evaporate produced water. Existing production pit ( #277098) will be reclaimed pending approval of the Form 27 submitted previously. All fluid pits will be lined, at a minimum, in accordance with the specifications set forth in the COGCC Final Amended Rules. All pits will be constructed in cut; no portions of any fluid - containing pits shall exist in fill slopes. 9. All fluid pits will be lined, at a minimum, in accordance with the specifications set forth in the COGCC Final Amended Rules. All pits will be constructed in cut; no portions of any fluid - containing pits shall exist in fill slopes. 10. No additional surface disturbance will be required in order to drill the remaining planned wells on this pad. 11. Cultural resource measurements taken as follows: a. Distance to nearest building — measured to an intermittently occupied hunting cabin located in the SENW of sec 17: T5S -R97W. b. Distance to nearest public road — measured to CR 211 located to the SW of the location reference point. c. Distance to nearest above ground utility — measured to the north edge of the town of Parachute. To the best of our knowledge, no above ground utilities are immediately proximate to the location reference point. d. Distance to nearest railroad — to the best of our knowledge, the nearest railroad on the other side of the Colorado River to the SSW of the location reference point. e. Distance to the nearest property line — measured to the NWNE of Sec 1: T6S -R98W.