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402230071 02A 2019-11-05T14:31:49.68-07:00 10670 MALLARD EXPLORATION LLC

1400 16TH STREET SUITE 300

DENVER CO 80202 Erin Mathews 720 543 7951 Justin Garrett Regulatory Analyst 2019-11-05T14:31:49.68-07:00 2019-11-05T14:31:49.383-07:00 UPLOADED jgarrett 2019-11-04T10:49:44.207-07:00 jgarrett regulatory@ascentgeomatics.com 10.00000 emathews@mallardexploration.com christob christob 2019-11-07T12:26:03.583-07:00 402230071 true true false false false false Pad Koloa WELD NENW 15 8N 61W 6 4960 500 FNL 2621 FWL 40.667786 -104.191469 1.4 2019-08-06T00:00:00-06:00 Eliot Kershner 10 20 10 10 2 2 10 10 10 2 3" welded steel flowlines from wellheads to separators carrying oil, gas and water. 3" welded steel gas supply line from compressors to wellheads. 2020-06-01T00:00:00-06:00 2020-12-01T00:00:00-07:00 4960 true false false OFFSITE Commercial Disposal FEE FEE false false false false Surface Use Agreement true 20170115 false false true true 4 - Ascalon fine sandy loam, 0 to 6 percent slopes false false true 2019-08-06T00:00:00-06:00 true true false false false false false false true 344 1769 189 false false No false 16.03 8.00 4 2 true OFFSITE Commercial Disposal true Location is sensitive due to being within the Upper Crow Creek Designated Groundwater Basin and proximity to low lying area. Depth to groundwater taken from water well permit #82316-F. 609 false false false false false false false false false NO true true false false false false false false false false false false N/A County true false Other 1041 WOGLA Not yet submitted 1041 WOGLA 402230071 Manufacturer of MLVT: Hydrologistics Size and Volume: Up to two (2) 157’ diameter/42,000 BBLs Anticipated time frame on site: 90 days Since this location is not in a buffer zone, a Waste Management Plan and Facility Layout Drawing were not included. A docket number has not yet been applied for. 402230071 402230071 FORM 2A SUBMITTED 402230071.pdf 402230071 402231710 ACCESS ROAD MAP Koloa Pad 8N61W15 Access Road Map.pdf 1762078 402230071 402231713 HYDROLOGY MAP Koloa Pad 8N61W15 Hydrology Map.pdf 748362 402230071 402231715 LOCATION DRAWING Koloa Pad 8N61W15 Location Drawing.pdf 1425718 402230071 402231716 LOCATION PICTURES Koloa Pad 8N61W15 Location Photo Exhibit.pdf 446030 402230071 402231717 REFERENCE AREA MAP Koloa Pad 8N61W15 Reference Area Map.pdf 558684 402230071 402231720 REFERENCE AREA PICTURES Koloa Pad 8N61W15 Reference Photos Exhibit.pdf 502749 402230071 402231721 NRCS MAP UNIT DESC 4_N_Ascalon_fine_sandy_loam_0_to_6_percent_slopes--Weld_County_Colorado_Northern_Part.pdf 123371 402230071 402231722 MULTI-WELL PLAN Koloa Pad 8N61W15 Multi-Well Plan.pdf 538999 402230071 402231723 SURFACE AGRMT/SURETY Koloa_SUA_Redacted.pdf 957721 402230071 402230073 02 Koloa 15-22-1HC 402230071 402230074 02 Koloa 15-22-2HN 402230071 402230075 02 Koloa 15-22-3HN 402230071 402230076 02 KL-1 402230071 402230077 02 Koloa 15-22-4HN 402230071 402230078 02 Koloa 15-22-5HN 402230071 402230079 02 Koloa 15-22-6HC 402230071 402230080 02 Koloa 15-22-7HN 402230071 402230081 02 KL-2 402230071 402230082 02 Koloa 15-22-8HN a330fea9-19d0-41a7-a1c6-21e2ce5bf52f 402230071 9 Interim Reclamation Operator shall be responsible for segregating the topsoil, backfilling, re-compacting any backfill, reseeding, and re-contouring the surface of any disturbed area so as not to interfere with Owner’s operations and shall reclaim such area to be returned to preexisting conditions as best as possible with control of all noxious weeds. false 58ddfcd2-dbb5-4a60-9ac6-21eed87a4771 402230071 1 General Housekeeping 804. Visual Impacts: All long term facility structures will be painted a color that enables the facilities to blend in with the natural background color of the landscape, as seen from a viewing distance and location typically used by the public. Maintain appearance with garbage clean-up; a trash bin will be located on site to accumulate waste by the personnel drilling the wells. Site will have unused equipment, trash and junk removed immediately. false 7cce178e-173d-4a79-9fb4-58f82ea4add4 402230071 7 Construction Location will be equipped with remote monitoring capability including tank level alarms. false 4af2ad11-41d9-4f73-a7e0-5ef4c9faef8f 402230071 4 Material Handling and Spill Prevention New Flowine Rule 1100 Series BMP: 1. Integrity testing of flowlines connecting wellheads to the separators: CONSTRUCTION PHASE: The flowlines that Operator uses are designed/constructed/tested to ASME B31.4 and API 1104 standards. Only materials with Material Test Reports (MTRs) provided by the pipeline supplier are used in the construction of the flowlines. Construction is tested with 100% x-ray and is hydrotested per the applicable ASME Code. OPERATIONS PHASE: Pressure testing of the flowlines is conducted on an annual basis. Additionally, Operator is already in compliance with 1104.i. Continuous Pressure Monitoring Requirements of the 1100 Series Flowline Regulations. Operator utilizes a series of standard operating procedures to define our flowline integrity testing program. 2. Frequency on valve and fitting inspections: Operator’s Lease Operators inspect all equipment on their locations at a minimum of once every 48 hours, but most sites are inspected every 24 hours. Valves and fittings inspections are part of the daily job duties of the lease operators. Any valve or fitting that is found to be leaking is either repaired immediately by the lease operator or shut-in procedures are implemented as described below. Additionally, lease operators conduct a documented monthly inspection of the facility and this includes inspection of all valves and fittings. 3. Description of Lease Operator Inspections, Monthly Documented Inspections & Environmental Inspections: The Operator lease operator inspections are done as a routine part of the lease operators job. The lease operator would typically visit each of their assigned locations daily. They conduct a visual inspection of the facility which includes all valves, fittings, wellhead, tanks, vapor control systems and all connections. The lease operator also checks our Scada automation system for system pressures and flows. Pressure and flow sensors are placed on multiple points throughout the system and are specifically designed to measure the system for irregularities that would indicate a leak in the system or change in production of oil, water, or gas. The Scada system is also set-up with alarms that are triggered by anomalous pressure or flows. Low pressure warnings can activate automatic shut-in of the well and system. Lease operator inspections would note any leaks of either gas or fluids which triggers an immediate repair or shut-in. The Lease operators also conduct CDPHE Regulation 7– Audible, Visual, and Olfactory (AVO) inspections, which focus on the tanks and vapor control system. The Regulation 7 AVO is also a documented inspection. In addition, the sites are inspected with optical gas imaging cameras on a routine schedule, annually for compliance purposes with our Spill Prevention Containment and Countermeasures (SPCC) plan, depending on the status of reclamation the sites are also inspected on either a 14-day, 30-day, annual or rain triggered event in accordance with both the COGCC and the CDPHE Stormwater Management Plans (SWMP). 4. Measures for when leaks are discovered: If we suspect a leak we shut in the well and hydrotest the line. If it passes, then the well is brought back into production. If there is an actual leak, the well is kept shut in while the leak is found and fixed. Not until the line has passed hydrotesting, would the well be brought back online. false b87c7fd5-bffd-4fcc-b3c6-7b7e89c708fe 402230071 3 Storm Water/Erosion Control A sediment trap will be constructed to capture any sediment prior to leaving the location. The sediment trap has been sized in accordance with good engineering practices. A temporary diversion, consisting of a cut swale and compacted earthen berm, will be constructed along the pad edge and routed to the sediment trap to prevent offsite migration of sediment/contaminant into the nearby surface water features. If necessary, check dams will be constructed within the swale. false 67e8b5f3-8237-4e55-9f30-9b13063f5db9 402230071 6 Construction Operator will have an MLVT Design Package, certified and sealed by a licensed professional engineer, which is on file in their office and available upon request. The site shall be prepared in accordance with the specifications of the design package prior to tank installation; including ensuring that proper compaction requirements have been met. The MLVT will be at least 75 feet from a wellhead, fired vessel, heater-treater, or a compressor with a rating of 200 horsepower or more. It will be placed at least 50 feet from a separator, well test unit, or other non-fired equipment. All liner seams will be welded and tested in accordance with applicable ASTM international standards. Operator will be present during initial filling of the MLVT and the contractor will supervise and inspect the MLVT for leaks during filling. Operator will comply with the testing and re-inspection requirements and associated written standard operating procedures (SOP) listed on the design package. Signs will be posted on the MLVT indicating that the contents are freshwater. The MLVT will be operated with a minimum of 1 foot of freeboard at all times. Access to the MLVT will be limited to operational personnel and authorized regulatory agency personnel. Operator or contractor will conduct daily visual inspections of the exterior wall and surrounding area for integrity deficiencies. Operator will have a contingency plan/emergency response plan associated with the MLVT and it is on file at their office. A fabric reinforced liner will be utilized. In the event that a tank breach were to occur, the fabric reinforced liner will prevent a “zippering” failure from occurring. The liner will meet the specifications per the design package. Operator acknowledges and will comply with the Colorado Oil & Gas Conservation Commission Policy on the Use of Modular Large Volume Tanks in Colorado dated June 13, 2014. false 29c331dc-e4f9-4774-a39b-e92073cf371c 402230071 8 Emissions mitigation Green Completions - Test separators and associated flow lines, sand traps and emission control systems shall be installed on-site to accommodate green completions techniques. When commercial quantities of salable quality gas are achieved at each well, the gas shall be immediately directed to a sales line or shut in and conserved. If a sales line is unavailable or other conditions prevent placing the gas into a sales line, the operator shall not produce the wells without an approved variance per Rule 805.b.(3)C. false c90979d8-bbd7-4b67-97fc-fa40e754b8e5 402230071 2 Storm Water/Erosion Control Implement and maintain BMPs to control storm water runoff in a manner that minimizes erosion, transport of sediment offsite, and site degradation. Gas and water gathering lines will be co-located to minimize potential of erosion associated with construction of any pipeline(s). false 37675826-abd6-4cd5-aff7-9711a4a0dea3 402230071 5 Material Handling and Spill Prevention Operator will install an engineered containment system around the tank battery. The containment system is constructed of a perimeter of metal walls that are post driven into the ground around a flexible geotextile base. All components are then sprayed with a polyurea liner technology. This liner technology maintains impermeability and is puncture resistance under exposure to UV rays, weather extremes, and chemicals commonly encountered in oil and natural gas production, and provides seamless protection. The liner is then topped with pea gravel. Secondary containment will be installed around separators and treaters consisting of metal berm walls. The separators and treaters will be set on top of compacted road base. false 402230071 Sievers F & R LLC

43605 County Road 92

Briggsdale CO 80611-9128 402230071 10 20 10 10 2 2 10 10 10 2 3" welded steel flowlines from wellheads to separators carrying oil, gas and water. 3" welded steel gas supply line from compressors to wellheads. 4 2 402230071 C true 402230071 F true 402230071 true true false false false false false false Thread was being aborted.