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401739617 02A 2018-09-18T10:14:31.477-06:00 69175 PDC ENERGY INC

1775 SHERMAN STREET - STE 3000

DENVER CO 80203 Ally Ota 303 860-5800 Ally Ota Regulatory Tech 2018-09-18T10:14:31.477-06:00 2018-09-18T10:14:31.4-06:00 453038 UPLOADED Agale 2018-08-21T14:05:03.083-06:00 Agale alexandria.ota@pdce.com 7.00000 alexandria.ota@pdce.com espino-e espino-e 2018-10-02T14:19:21.99-06:00 401739617 false false false false false false 4N64W08 1-12 Jagged 453038 WELD NESW 8 4N 64W 6 4771 2166 FSL 2395 FWL 40.325600 -104.575400 2.7 2017-06-07T00:00:00-06:00 Scott Sherard 12 25 12 1 1 14 Each well will have a flow line, oil production line, water production line and a backpressure line, each battery will have a gas sales line. Oil production line and flow lines are 3 inch steel SCH 80FB PE DRL. Water production line and low pressure gas vent lines are 2 inch SDR7 poly. Gas sales lines installed and maintained by Gas Purchaser, normally 6 inch steel .256 FBE. 2019-02-01T00:00:00-07:00 2019-07-01T00:00:00-06:00 4771 true false false OFFSITE Land application Drill cuttings will be land applied at PDC spread fields with COGCC Facility ID 449950 or 448329. 2016-09-27T00:00:00-06:00 FEE FEE true true false false oil and gas lease true 20160047 false false true true 73- Vona loamy sand 3-5% 57-Renohill clay loam 3-9% false false false false false false false false false false false 309 1675 80 false false No false 17.00 7.90 7 2 4 false OFFSITE Beneficial reuse true 449950 true Sensitive area determination: ground water is more than 20', and nearest water well is greater than 1000'. Depth to ground water determination: Land Owner experience. A ditch is located within this location, however, the ditch will be abandoned by the landowner until final reclamation occurs. Nearest downgradient surface water body is at 309 feet. 318A false false false false false false false false true NO true true true true false false false false false false false 401739617 This 2A is being amended to add two new wells to the location, as well as additional equipment. There will be a total of 12 horizontal wells drilled from this pad. The 2 additional APDs will be submitted as soon as the requirements of Rule 318A(e) have been satisfied. Original SUA included to show this agreement is for oil and gas operations. Lands better described in Exhibit A attached in the SUA. Water well shown on COGCC Mapper to the NE of the production facility was not located during field surveying. Next closest water well shown on COGCC GIS map is at 1,675'. Nine temporary water tanks will be onsite during the initial production phase of the well, estimated time 6-9 months. The MLVTs will be onsite for 180 days and contain 53,000 bbls per tank. MLVT manufacturers currently used by PDC are Industrial Systems Inc. (ISI) and PCI Manufacturing. 401739617 401739617 FORM 2A SUBMITTED 401739617.pdf 401739617 401766215 ACCESS ROAD MAP ACCESS ROAD_JAGGED 4N64W08 1-12 PAD (2018-08-13).pdf 1420294 401739617 401766218 HYDROLOGY MAP HYDROLOGY_JAGGED 4N64W08 1-12 PAD (2018-08-13).pdf 1050367 401739617 401766220 LOCATION DRAWING LOCATION DRAWING_JAGGED 4N64W08 1-12 PAD (2018-08-13).pdf 492415 401739617 401766221 LOCATION PICTURES LOCATION PICTURES_JAGGED 4N64W08 1-12 PAD (2018-05-02).pdf 364245 401739617 401766222 MULTI-WELL PLAN MULTI WELL_JAGGED 4N64W08 1-12 PAD (11N) (2018-07-20).pdf 772040 401739617 401766223 OTHER NOTIFICATION ZONE_JAGGED 4N64W08 1-12 PAD (2018-08-13).pdf 601604 401739617 401766224 NRCS MAP UNIT DESC NRCS Map.pdf 239020 401739617 401766225 WASTE MANAGEMENT PLAN Complete PDC EP Waste Mgmt Plan-porter 20180313.pdf 7466208 401739617 401766227 LEAK DETECTION PLAN Leak Detection Plan.pdf 30972 d626a912-508b-4f05-9619-0e4c3e191711 401739617 1 Storm Water/Erosion Control 604c.(2).G. Berm Construction: Containment berms for Permanent and Temporary Tanks shall be constructed of steel rings with a geosynthetic liner, designed and installed to prevent leakage and resist degradation from erosion or routine operation. Berms and secondary containment will be designed to enclose an area sufficient to contain a minimum of 150% of the largest single tank. Tank batteries are inspected on an annual basis for Spill Prevention, Control and Countermeasure (SPCC) Plan compliance. Secondary containment devices shall be sufficiently impervious to contain any spilled or released material. Secondary containment at the production facility is typically visually observed by PDC personnel on a daily basis. Any deficiencies are relayed to appropriate PDC staff and a work order is generated to schedule necessary repairs. false 69552bd0-3365-4838-b1a3-644d31aefdea 401739617 2 Material Handling and Spill Prevention PDC Energy, Inc. (PDC) has developed Best Management Practices (BMPS) to prevent injuries, property damage or environmental impacts and a Contingency Plan for any Modular Large Volume Tank (MLVT) leak or catastrophic failure of the tank integrity and resulting loss of fluid. These BMPs include, but not limited, by the following: 1) PDC determines MLVT locations based on size of location, nearby surface waters, site visibility, surrounding land use, property lines, onsite traffic, site security, tear-away tank fill connections, topography (high, low, slope, direction), nearby building units, roads, access points, and surface owner requests. 2) Signs shall be posted on each MLVT to indicate that the contents are fresh water and that no E&P waste fluids are allowed. Location and additional signage shall conform to Rule 210. 3) MLVTs will be operated with a minimum of 1 foot freeboard at all times. 4) Access to the tanks shall be limited to operational personnel. 5) Construction and installation of the tank structure, liner and sub-grade shall meet or exceed the manufacturer specifications. PDC follows manufacturer’s Standard Operating Procedures (SOPs) and will provide these SOPs upon request to the COGCC. 6) PDC will conduct daily, visual inspections of the exterior wall and general area for any integrity deficiencies before, during, and after filling the MLVTs. PDC uses Construction Sign-Off, Site Preparation Sign-Off, Completion Sign-Off, Pre-Fill, and Site Visit checklists to maintain a written record of inspections. However, when the fluid level in the MLVTs is less than two (2) feet and there is no activity going on (i.e. during holidays or a small break between completions), only intermittent inspections will be conducted. Two feet is the safe volume of fluid level that is needed to hold the liner down and keep the MLVT stable. 7) Each location where MLVT’s are used will have its own set of unique site-specific characteristics and associated risks (e.g., rural vs. urban setting, grade of the location, etc.) to be considered in a worst case scenario. These characteristics must be identified and addressed prior to the MLVT construction phase and should be documented in the MLVT construction checklist. Ensuring the safety of our employees, contractors, and the public are a top priority. This can be addressed with the implementation of MLVT pre-construction risk assessment measures to address safety concerns, and minimize environmental impacts and property damage in the unlikely event of a MLVT release. 8) In the event of a catastrophic MLVT failure, the Operator shall notify the COGCC as soon as practicable but not more than 24 hours after discovery, submit a Form 22-Accident Report within 10 days after discovery, conduct a “root cause analysis”, and provide same to COGCC on a Form 4-Sundry Notice within 30 days of the failure. 9) The MLVT shall be constructed and operated in accordance with a design package certified and sealed by a Licensed Professional Engineer either in Colorado or the state where the MLVT was designed or manufactured. 10) COGCC Rules 605.a.(3,5,6,7, and 8), as applicable to tank setbacks at the time of installation shall apply to the siting of this MLVT. 11) All MLVT liner seams shall be welded and tested in accordance with applicable ASTM international standards. Any repairs to liners shall be made using acceptable practices and applicable standards. 12) PDC Energy Inc. hereby certifies to the Director that the Modular Large Volume Tanks, utilized for the afore mentioned location, will be designed and implemented consistent with the Colorado Oil and Gas Conservation Commission policy dated June 13, 2014. MLVT Certification PDC Energy Inc. hereby certifies to the Director that the Modular Large Volume Tanks, utilized for the afore mentioned location, will be designed and implemented consistent with the Colorado Oil and Gas Conservation Commission policy dated June 13, 2014. false 146bf93a-3660-426a-a8d3-d80cac44f15b 401739617 3 Drilling/Completion Operations 604c.(2).C. Green Completions: Flowlines, 48” HLPs, sand traps all capable of supporting green completions as described in rule 805 shall be installed at any Oil and Gas location at which commercial quantities of gas and or oil are reasonably expected to be produced based on existing wells. All green completions flow back equipment will be able to handle more than 1.5 times the amount of any known volumes in the surrounding field. First sign of salable gas will be put into production equipment and turned down line. false 401739617 John R. Williamson

25473 County Road 46

Kersey CO 80644 970-381-0618 401739617 12 25 12 1 1 14 Each well will have a flow line, oil production line, water production line and a backpressure line, each battery will have a gas sales line. Oil production line and flow lines are 3 inch steel SCH 80FB PE DRL. Water production line and low pressure gas vent lines are 2 inch SDR7 poly. Gas sales lines installed and maintained by Gas Purchaser, normally 6 inch steel .256 FBE. 7 2 4 401739617 C true 401739617 F true 401739617 false false false false false false false false Thread was being aborted.