COAs

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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	335052	CSF T Pad	TEP ROCKY MOUNTAIN LLC 96850	AC 12/1/2025	MAMM CREEK 52500	GARFIELD 045 SWNW 8 7S91W 6	335052

COGIS - Conditions of Approval Results

Type	Source Document	Conditions of Approval
OGLA	Form: (02A) 400094416 09/27/2010	Location is in a sensitive area because of proximity to surface water; therefore, operator must ensure 110 percent secondary containment for any volume of fluids contained at well site during drilling and completion 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 sufficiently protective of nearby surface water. If fluids are conveyed via pipeline, operator must implement best management practices to contain any unintentional release of fluids.
OGLA	Form: (02A) 400094416 09/27/2010	Operator must implement best management practices to contain any unintentional release of fluids.
OGLA	Form: (02A) 400094416 09/27/2010	Any pit constructed to hold fluids must be lined or a closed loop system (which Antero has already indicated on the Form 2A) must be implemented during drilling.
OGLA	Form: (02A) 400094416 09/27/2010	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.
OGLA	Form: (02A) 400094416 09/27/2010	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.
OGLA	Form: (02A) 400094416 09/27/2010	Location is in a sensitive area because of proximity to surface water; therefore, operator must ensure 110 percent secondary containment for any volume of fluids contained at well site during drilling and completion 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 sufficiently protective of nearby surface water. If fluids are conveyed via pipeline, operator must implement best management practices to contain any unintentional release of fluids. COA 5 - Operator must implement best management practices to contain any unintentional release of fluids. The location is in an area of high run off/run-on potential; therefore the pad shall be constructed to prevent any stormwater run-on and /or stormwater runoff.
OGLA	Form: (04) 400589677 06/08/2014	PLANNING: The following conditions of approval (COAs) will apply: Notify the COGCC 48 hours prior to start of temporary frac tank pad reconstruction/regrading, tertiary containment construction (if required), pipeline testing, and start of hydraulic stimulation operations using Form 42 (the appropriate COGCC individuals will automatically be email notified, including the LGD for hydraulic stimulation operations). Concurrent with notice required by Rule 316C., operator shall provide Form 42 notification to COGCC for this Oil and Gas Location when fracing operations will be supported by this pad. Operator shall prepare an emergency spill response program that includes employee training, safety, and maintenance provisions. In the event of a spill or release, the operator shall immediately implement the emergency response procedures in the above-described emergency response program. Use of this Oil and Gas Location for the purposes of a temporary remote frac pad is not permitted beyond December 31, 2014.
OGLA	Form: (04) 400589677 06/29/2014	DRILLING/COMPLETIONS: The following conditions of approval (COAs) will apply: Flowback and stimulation fluids generated at the well pads being serviced by this temporatory frac tank pad location must be sent to tanks, separators, or other containment/filtering equipment on the pad where fracing is taking place, before the fluids can be placed into any pipeline or storage vessel located on the well pad; or into the operator's pipelines or into tanker trucks for offsite disposal. A spill response trailer will be on location 24 hours a day, 7 days a week during construction and completion operations to facilitate a timely response to any spills that may occur. Appropriate heavy equipment (e.g., a backhoe) will be staged nearby and available at the location during all completion operations so that any emergency diversions or pits to contain spills can be built immediately upon discovery. All personnel working at the location during all drilling and completion operations will receive training on spill response and reporting. Documentation of this training will be maintained in the operator’s office/onsite trailer. At a minimum, weekly spill prevention meetings will be held identifying staff responsibilities in order to provide a quick and effective response to a spill. Appropriate documentation will be maintained in the operator’s office/onsite trailer. Operator will conduct daily inspections of equipment for leaks and equipment problems with appropriate documentation retained in the operator’s office/onsite trailer. All equipment deficiencies shall be corrected. Daily monitoring should end approximately 14 days after well completion and/or after production has been stabilized; however, timely inspections should continue during the production phase. Operator shall have trained personnel present at the frac tanks during water transfer into or out of tanks; personnel shall be able to shut off transfer pumps or close valves as necessary in response to upset conditions. Additional containment shall be required where temporary or permanent pumps and other necessary equipment or chemicals are located on the frac pad site. Operator will use adequately sized containment devices for all hazardous chemicals and/or materials stored or used on location. Operator will implement measures to ensure that adequate separation of hydrocarbons from the influent occurs to prevent accumulation of oil on the surface of stored fluids. Operator shall also employ a method for monitoring buildup of phase-separated hydrocarbons on the surface of stored fluids.
OGLA	Form: (04) 400589677 06/29/2014	PIPELINES: The following conditions of approval (COAs) will apply to the Form 4 if any temporary surface (poly/steel) or buried (poly or steel) pipelines are used during operations at the temporary frac pad location or nearby well pads: Operator shall pressure test pipelines in accordance with Rule 1101.e.(1) prior to putting into initial service any temporary surface or permanent buried (steel/poly) pipelines and following any reconfiguration of the pipeline network. Operator will utilize, to the extent practical, all existing access and other public roads, and/or existing pipeline right-of-ways, when placing/routing temporary surface pipelines.
OGLA	Form: (04) 401952992 02/28/2019	Planning: The following conditions of approval (COAs) will apply: •Provide the following Notices: 48 hours for pad re-construction and temporary produced water and condensate/oil production storage tanks placement; 48 hours for temporary surface flowline testing for re-routed lines from separator to the temporary tanks; 48 hours for temporary produced water and condensate/oil production storage tanks removal; 48 hours for new permanent subgrade flowline testing for new lines from separator to the new permanent produced water and condensate/oil production storage tanks.
Environmental	Form: (04) 401971528 03/14/2019	The Operator shall provide updated status reports on a monthly basis via Supplemental F27. These updates shall be submitted by the first day the month until the site has been remediated. If remediation continues after the tank battery has been rebuilt, the frequency of Supplemental F27s will be reevaluated.
Environmental	Form: (04) 401971528 03/14/2019	If remedial activities extend beyond the footprint of the tank battery, the Operator shall notify the COGCC and SI all production activities.
Environmental	Form: (04) 401971528 03/14/2019	The Operator shall notify the COGCC prior to removing the LOTO and placing heaters to the separtors back into service.
Environmental	Form: (04) 401971528 03/14/2019	The Operator shall comply with all other applicable 605 Rules.

COGIS - Best Management Practice Results

BMP Type	Source Document	Best Management Practices
Planning	Form: (04 ) 400589677 6/30/2014	BACKGROUND • Ursa Operating Company LLC (Ursa) acquired all assets previously held by Antero Resources and assumed full operations on 4/1/13. • This location is an approved, constructed and producing location. • As these locations are on Federal (BLM) managed lands; there are no building units within 1000’. BLM has primary jurisdiction on Federal surface; as such BMPs and mitigation required by the BLM will be complied with. • BLM and Ursa conducted a joint onsite on April 4, 2014 and confirmed that the well pads being drilled and the temporary tank battery locations are within the scope of the BLM Environmental Assessment for the Castle Springs field. • The location was permitted and constructed prior to Form 2A regulations being implemented. Therefore these BMPS focus on those required for placement, operations, and removal of the temporary tank battery to support completions at an adjacent location; and not on construction, drilling, completions and production operations specific to this location. • Temporarily staging the tanks at this location does not require a pad expansion, addition of wells, installation of a pit, or significant change in the pad design or use essential to lease operations; as the temporary tanks will be placed in the same approximate location as if completions were supporting drilling at the same location (see Facility Layout Diagram). • The only change is that staging Temporary Tank Batteries at this location will support completions at the Castle Springs E (4 wells) & Q pads (2 wells) vs. the location on which they are temporarily staged; which is a standard practice recognized by the COGCC and other state agencies to avoid the need for additional surface disturbance. • The temporary tank battery is anticipated to be in use from late August through mid-October (approximately 60 days). • A maximum number of 20 - 500 bbl tanks will be temporarily staged at this location. • Existing buried water lines will be used to transfer water to and from the temporary tank battery. • The location is not within a 317B area. • Raptor surveys were conducted and nests were located in close proximity to this well pad. However, completions activities will not occur until after the nesting season (August).
Pre-Construction	Form: (04 ) 400589677 6/30/2014	TEMPORARY TANK BATTERY - PRE-OPERATIONS • Ursa will hold a pre-completions meeting with contractors using Ursa’s checklists prior to startup of activities. Ursa’s temporary tank battery protocol will be discussed and implemented. • The tanks (cleaned and sanitized) will be placed at the location prior to startup and will be labeled as out of service until tanks are being filled and used, then properly labeled for use. • Prior to filling the tanks and placing them in use, Ursa shall provide Form 42 notification to COGCC in accordance with NTO’s when operations will be supported by this pad. Ursa will also notify the COGCC 48 hours prior to start of temporary frac operations. • Secondary Containment – Prior to filling the tanks, Ursa will install secondary containment for fluids contained in the temporary tanks. The containment would accommodate at least the volume of the manifolded volume and 150% of the largest tank; including, but not limited to, construction of a berm immediately adjacent to the tanks. This is based on Ursa’s temporary tank battery protocol.
Material Handling and Spill Prevention	Form: (04 ) 400589677 6/30/2014	ENVIRONMENTAL STEWARDSHIP AND COMPLIANCE (GENERAL) • AIR / ODORS – Ursa will comply with CDPHE Section 600 and 800 rules regarding green completions and controlling air emissions from the tanks, and minimizing the potential for odors. • CHEMICAL & MATERIAL HANDLING – All materials and chemicals will be managed to minimize environmental contamination. All chemicals used will be reported in accordance with COGCC Section 200 rules and policies; including entries to Frac Focus. • SPCC / COGCC SECONDARY CONTAINMENT - Ursa developed and implemented a site-specific Spill Prevention, Control and Countermeasures Plan (SPCC) for temporary tank batteries in accordance with EPA SPCC regulations (40 CFR 112) and COGCC Section 600 regulations, prior to placement of tanks at the location. In addition Ursa conducts monthly leak and spill visual inspections under its Temporary Tank Battery SPCC plan. • SPILLS / INCIDENTS – Spill prevention and response are outlined in Ursa’s Spill Prevention and Management Plan (attached). This includes training of employees and contractors personnel. Spills response includes notifications, reporting, response actions, remediation and corrective actions. The spill criteria in Ursa’s plan require that waste be properly classified as E&P or non-E&P wastes. For E&P waste, all spills greater than 1 barrel (not within containment) or 5 bbls within containment will be reported to the COGCC using a Form 19. Should remediation be required, a Form 27 will be submitted upon COGCC request, outlining the proposed remediation. Spills related to non-E&P waste will be managed in accordance with CDPHE and EPA regulations depending on the volume spilled. • SPILL RESPONSE - Ursa currently stages spill response equipment and materials onsite. If additional response equipment is needed, equipment and materials, including Vac truck, backhoes are approximately 20 minutes away. Ursa requires all key personnel to also be equipped with spill equipment for immediate use upon discovery of a release. Personnel trained in spill response are on call 24 hours a day, 7 days a week. Ursa’s Spill Prevention and Management Plan and Spill, among others, provide explicit detail with regards to spill notification, reporting, response and prevention. • WASTE MANAGEMENT – The location will be managed in accordance with Ursa’s Waste Management Plan which incorporates COGCC Section 900 rules. Appendix L of Ursa’s Waste Management Plan specifically addresses temporary tank batteries. Containment will be designed to localize and minimize the potential for any exploration and production wastes, chemicals, fluids, etc. from leaving the location, including berms, barriers, and use of spill control materials. • PLANS - All plans referenced herein have been provided the COGCC on previous occasions and are available upon request, as updated.
Construction	Form: (04 ) 400589677 6/30/2014	TEMPORARY WATER LINES TO SUPPORT TEMPORARY TANK • Ursa will pressure test pipelines any surface lines in accordance with Rule 1101.e. (1) prior to putting into initial service any temporary surface or permanent buried (steel/poly) pipelines and following any reconfiguration of the pipeline network. • Ursa will use adequately sized containment devices for and hazardous chemicals and/or materials if stored or used on location.
Construction	Form: (04 ) 400589677 6/30/2014	TEMPORARY TANK BATTERY - OPERATIONS • Ursa will implement its temporary tank battery protocol (attached) that addresses equipment start up, operations, and decommissioning. The checklist ensures integrity of all pipelines, secondary containment necessary for equipment, and ensures all valves and fittings are inspected for leaks or deficiencies. It should be noted that changes may be necessary to this checklist as site specific actions may be necessary to ensure all equipment and operations satisfy COGCC rules and regulations. • Completions Equipment Inspections – Ursa will conduct daily inspections of tanks and equipment for leaks and equipment problems with appropriate documentation retained in the operator’s office/onsite office. All equipment deficiencies shall be corrected promptly. Daily monitoring will end approximately 14 days after well use of the tank battery. • Trained Personnel – Ursa shall have trained personnel present at the frac tanks during water transfer into or out of tanks; personnel shall be able to shut off transfer pumps or close valves as necessary in response to upset conditions in accordance with Ursa’s tank battery protocol. • In addition, as outlined in Ursa’s Spill Prevention and Response Plan, SPCC plan (required by EPA), and protocols to comply with COGCC Section 600 containment rules, training is conducted for Ursa employees and contractors at least annually. This training was recently completed in accordance with SPCC regulations and COGCC spill regulations Nov 21, 2013, in January 2014, and again on April 3, 2014.