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402354497 02A 2020-05-01T07:55:29.77-06:00 100322 NOBLE ENERGY INC

1001 NOBLE ENERGY WAY

HOUSTON TX 77070 Craig Richardson 303 228-4232 Julie Webb Sr. Regulatory Analyst 2020-05-01T07:55:29.77-06:00 2020-05-01T07:55:29.66-06:00 UPLOADED jwebb 2020-03-27T11:24:27.907-06:00 jwebb Denverregulatory@nblenergy.com 10.10000 Regulatorynotification@nblenergy.com christob christob 2020-05-08T11:02:25.207-06:00 402354497 true false false false false false Pad A30-01 WELD NENE 30 6N 64W 6 4698 904 FNL 270 FEL 40.461730 -104.584660 1.3 2020-01-30T00:00:00-07:00 DUNCAN HOTCHKISS 6 Six (6) 2-4" Steel Three Phase Flowlines, Eight (8) 2-4" Steel Gas Lift Lines, Two (2) 12" Temp Poly Lines for fresh water 2020-09-01T00:00:00-06:00 2020-12-01T00:00:00-07:00 4698 true false false OFFSITE Commercial Disposal 2018-02-13T00:00:00-07:00 FEE FEE false false false false Surface Use Agreement true 20030009 false false true true 46 - Olney fine sandy loam, 0 to 1_percent_slopes 51 - Otero sandy loam, 1 to 3 percent slopes false false false false false false false false false true 26 436 35 false false No false 7.50 1.10 1 true OFFSITE Commercial Disposal false true The nearest downgradient water feature is the ditch 26' East of the location. The nearest water well is Receipt number 3631646A located to the NW of the edge of disturbance. Permit 293023-A located to the WNW of the edge of disturbance was used as a basis for depth to ground water and sensitive area determination, static water level was 35 feet. 318A false false false false false false false false false NO false true false false false false false false false false false false N/A County true true Approved 1041WOGLA20-0021 approved 4/30/2020. 1041 WOGLA 2020-03-11T00:00:00-06:00 PDOP 402354497 There are six (6) proposed wells to be drilled on the A30-01 Pad Location: ROTH A31-730, ROTH A31-720, ROTH A32-790, ROTH A32-779, ROTH A32-770, ROTH A32-760 The proposed A30-01 Pad will produce to the A19-11 Tank, Location ID 472865. There are Building Units within 1,000’ of this Location. Per Rules 305.a. and 303.b.(3).J.iii. Pre-application notifications have been sent to Building Unit Owners within the Buffer Zone. Health Study notices were sent January 3rd, 2020. There are no Schools, School Facilities, School Properties or Child Care Centers within 1,320’ of the Oil and Gas location and therefore a Rule 305.a.(4) certification has not been provided with the submittal of this application. See attached the Operator's certification that the MLVT will be designed and implemented consistent with the June 13, 2014 COGCC MLVT policy. • Vendor: ShaleStone • Number & Size: We will set one (1) MLVT (67’ Diameter, 20,000 bbl) on location • Anticipated Time Frame on location: 4 Months • Location/Placement: SW corner as depicted on Location Drawing NEI is requesting a new Location ID as the Roth 1-30, Location ID 323442 has been P&A and needs to be closed out. The Tank Battery Location ID 436808, for the Roth 1-30 (NE of the proposed Disturbance Area) has been removed and reclaimed. 402354497 402354497 FORM 2A SUBMITTED 402354497.pdf 402354497 402354668 ACCESS ROAD MAP 07_ACCESS ROAD MAPS_A30-01 Pad_(2020-02-04).pdf 1418452 402354497 402354669 FACILITY LAYOUT DRAWING 12_FACILITY DRAWING_A30-01 Pad_(2020-03-04).pdf 210643 402354497 402354670 LOCATION DRAWING 13_LOCATION DRAWING_A30-01 Pad_(2020-03-04).pdf 217833 402354497 402354671 LOCATION PICTURES 14_LOCATION PICS_A30-01 Pad_(2020-02-04).pdf 425153 402354497 402354672 HYDROLOGY MAP 15_HYDROLOGY MAP_A30-01 Pad_(2020-03-12).pdf 972366 402354497 402354682 MULTI-WELL PLAN 20_MWP_A30-01 Pad_(2020-02-06).pdf 474842 402354497 402354684 NRCS MAP UNIT DESC NRCS.pdf 137562 402354497 402354685 OTHER A30-01 Pad_MLVT Cert.pdf 258032 402354497 402354708 SITING RATIONALE COGCC A30-01 Pad_Siting Rationale.pdf 84098 402354497 402387117 PRE-APPLICATION NOTIFICATION CERTIFICATION NOI Cert_A30-01 Pad_Signed.pdf 94101 c12e0cff-b5e7-49de-83bc-1a79a2b4c2e2 402354497 16 Construction COGCC Rule 604.c.(2)M. Fencing requirements. Unless otherwise requested by the Surface Owner, well sites constructed within the Designated Setback location will be fenced to restrict access by unauthorized persons. false b35d65e6-0950-41ad-9fff-208b88ea535d 402354497 4 Planning COGCC Rule 803 Lighting Lighting on the drill pad location is considered temporary and will be used during drilling/recompletion activities. Permanent lighting will not be installed and utilized during normal production operations. Temporary lighting will be completely shielded from building units within 1,500 feet by the installed temporary sound walls. Temporary lighting will be directed downward, inward, and shielded towards location to avoid glare on public roads and building units within . Temporary lighting will be on timers or turned off when practical, i.e., no drilling/completion operations being conducted. false 80cb117e-47e8-423a-a7e1-21bd6e1b9db8 402354497 18 Noise mitigation COGCC Rule 604.c.(2)A. Noise. Temporary operations – Baseline surveys will be completed at the residences to the Northeast 512'; Northwest 750' and 1088'; North 772', South 1101', and Southeast 1252' and 1314'. Engineered sound walls no less than 16’ tall will be used along the northern, eastern and eastern sides for well pad A30-01 to mitigate noise impacts to these residences. Sound wall gaps will be strategically placed to adequately protect residences yet allow proper air-flow across the drill pad. The use of equipment specific sound walls will be used as necessary around rig generators in the event of sound impacts during operations. The rig will be oriented on the location so that the pieces of equipment that generate the highest noise levels will face away from the closest building unit owners. Additional sound mitigation such as interior free-standing walls and fit-for-purpose sound curtains will be installed around drilling and completions (frac) equipment to protect nearby building units, as needed. Water will be piped into location to reduce the noise associated with heavy-duty trucks. false 7803c4c1-7dde-4d1a-b829-322fd195a953 402354497 5 Planning COGCC Rule 805.c Fugitive Dust Operator shall employ practices for control of fugitive dust caused by their operations. Such practices shall include but are not limited to the use of speed restrictions, regular road maintenance, restriction of construction activity during high- wind days, and silica dust controls when handling sand used in hydraulic fracturing operations. Additional management practices such as road surfacing, wind breaks and barriers, or automation of wells to reduce truck traffic may also be used if technologically feasible and economically reasonable to minimize fugitive dust emissions. Engineered sound walls no less than 16’ tall will be used along the western, northern, southern and eastern sides for well pad A30-01 to mitigate dust impacts to these residences. false 5d7f831d-18ab-44ba-8f22-323f2c0a24c8 402354497 21 Odor mitigation An alternative base fluid will be used for the oil-based mud (OBM) in a designated setback location. The alternative fluid has lower BTEX levels, is considered Non-Flammable or Combustible by OSHA/WHMIS criteria and is classified as a non-regulated material by the USDOT. More importantly, this alternative base fluid has a higher flash-point than normal diesel base fluid, which limits the odor causing vapor associated with OBM. Supplementary odor mitigation efforts would be used in response to landowner complaints. OBM is managed in a closed-tank system and OBM cuttings are containerized on-pad in three-sided high-walled steel bins, then mixed with clean dirt fill to reduce liquid content and odor, and hauled from the drill site on a daily basis. false 38750719-0b06-427a-b862-3961388e72cc 402354497 9 General Housekeeping COGCC Rule 604.c.(2)P. Removal of surface trash. All surface trash, debris, scrap or discarded material connected with the operations of the property shall be removed from the premises or disposed of in a legal manner. false 6fe12bcf-2189-4254-adaa-3a491bf6e570 402354497 1 Planning COGCC Rule 604.c.(2)E. Multiwell Pads. Operator shall consolidate wells to create multi-well pads, including shared locations with other operators. Multi-well production facilities shall be located as far as possible from Building Units. The pad shall be constructed in such a manner that noise mitigation may be installed and removed without disturbing the site or landscaping. Pads shall have all weather access roads to allow for operator and emergency response. false 77e30d16-d16c-4b13-aa77-4873517ec062 402354497 15 Material Handling and Spill Prevention Spill Prevention Control and Countermeasures (SPCC) plans are in place to address any possible spill associated with Oil & Gas operations throughout the state of Colorado in accordance with CFR 112. false f9a62ca0-ffbb-434c-a041-528a979e06da 402354497 19 Emissions mitigation COGCC Rule 604.c.(2).C. Green Completions – Emission Control Systems. • A modern production flowback method will be utilized at this location to reduce emissions: o This production flowback method will ensure oil and water is directed to a permanent production facility; o All Lines will be Pressure / Leak Tested Prior to Startup; o Operator will implement a gas detection and monitoring methodology at this location. This methodology will include OTIS 4-Gas Monitor and Detection System (LEL, H2S, CO, O2) on tanks and at various ground level locations. In addition to gas detection monitoring, 24/7 audible and visual monitoring will be conducted by onsite personnel during flowback operations. • A green completion equipment setup will be on location for Coil-Out/Drill-Out operations only. Flowback Equipment on-site is only to be utilized for upset conditions during Coil-Cleanout / Drill-Out phase of operations. No Equipment to be utilized for Production Flowback. • Flow lines, separators, and sand traps capable of supporting green completions as described in Rule 805 will be utilized at this Oil and Gas Location capable of accommodating commercial quantities of gas that are reasonably expected to be produced based on existing adjacent wells within 1 mile. • Temporary flowback flaring and oxidizing equipment shall include the following: o Adequately sized equipment to handle 1.5 times the largest flowback volume of gas experienced in a ten (10) mile radius; o Valves and porting available to divert gas to temporary equipment or to permanent flaring and oxidizing equipment; o Auxiliary fuel with sufficient supply and heat to sustain combustion or oxidation of the gas mixture when the mixture includes non-combustible gases. false 981ed41a-6017-44c9-a6d0-6af27e756c99 402354497 25 Drilling/Completion Operations Type: Freshwater MLVTs Per the June 13, 2014 COGCC Policy on the use of Modular Large Volume Tanks- Operator will have a 3rd-Party Operator construct, operate and monitor the freshwater MLVT structure. The Operator will have an MLVT Design Package, certified and sealed by a licensed PE, on file and available on request. The Operator will comply with all siting, construction, inspection and testing requirements specified in the Design Package and meeting COGCC Policy. Operation of the MLVT within 2,000 feet of a building unit will be shielded by engineered sound walls; this shielding would prevent any additional impacts that would need to be mitigated beyond currently committed BMPs for noise, light and dust impacts. false 3ea520e6-eb23-42b7-8257-7510dbb2ebab 402354497 23 Drilling/Completion Operations COGCC Rule 604.c.(2)O. Loadlines. All loadlines will be bullplugged or capped. false 35119ec2-b90b-45e1-b9f3-7a0a4a07f5d1 402354497 3 Planning COGCC Rule 604.c.(2)V. Development from existing well pads. Where possible, operators shall provide for the development of multiple reservoirs by drilling on existing pads or by multiple completions or commingling in existing wellbores (see Rule 322). Due to surface owner constraints, well spacing constraints and the lack of existing and appropriately-sized drill pads in the area, Operator was not able to plan drilling of the proposed wells from pre-existing well pads. The drill pad is located as far from Building Units as the property and land use will allow. Drill pad reference well to B.U. measurements are Northeast; 512’, Northwest; 750’, and North; 772'. Four other BUs are located within 1,500' from the edge of pad disturbance. false 3dc6ccff-37ac-4565-bf62-80838ce81dd7 402354497 26 Drilling/Completion Operations Operator will construct the A30-01 drill pad with 4-6” of clay and 3-5' of road-based cuttings. In addition to the road-based cuttings, Operator will use a 30-mill geosynthetic liner to underly the drill rig, cuttings and mud storage areas. All surficial activities performed by the operator during well drilling and completion activities will be protective of the environment. Bulk liquids used during D&C activities will be containerized in appropriate sealed vessels and underlain by an impervious liner and containment berm capable of containing any spill or leak from that vessel. Valves and temporary flow lines associated with D&C activities will be inspected daily for leaks while in service. false 19230cbe-9172-4f5b-bc71-957db7090152 402354497 2 Planning COGCC Rule 604.c.(2)U. Identification of plugged and abandoned wells. The operator shall identify the location of the wellbore with a permanent monument as specified in Rule 319.a.(5). The operator shall also inscribe or imbed the well number and date of plugging upon the permanent monument. false e3844f4f-3831-4535-82ac-9a5aab598b06 402354497 6 Planning COGCC Rule 604.c.(2)F. Leak Detection Plan Operator will monitor well pads and associated equipment on a regular basis to identify fluid leaks, including, but not limited to daily, monthly and annual visual inspections of all wellheads, equipment and fittings (production storage tanks and processing equipment are not located at the A30-01 drill pad) and Operator will perform maintenance if it is deemed necessary through inspection. FLIR-specific inspections of well heads are performed at well start-up. Annual spill prevention inspections at the well pad will be conducted and documented. Annual flowline testing will also occur according to COGCC Rules 1101 and 1102. Automation technology is utilized to monitor any variations in pressures and fluid gauges which could indicate a leak at the well head or flow lines to the production facility. In addition, automation provides remote shut-in capabilities in the event of an emergency. false 86f2b824-1f88-4bb9-bdf8-9caf2163034f 402354497 17 Construction COGCC Rule 604.c.(2)S. Access roads. At the time of construction, all leasehold roads shall be constructed to accommodate local emergency vehicle access requirements, and shall be maintained in a reasonable condition. Operator plans on building the access road off of WCR 51 for Drilling and Completion activities. false 1a9dfe49-7e07-44eb-9618-bb268b17cac9 402354497 24 Drilling/Completion Operations COGCC Rule 604.c.(2)Q. Guy line anchors. All guy line anchors left buried for future use shall be identified by a marker of bright color not less than four (4) feet in height and not greater than one (1) foot east of the guy line anchor. false 04da6d26-aeb3-4092-9e59-c787f1683c5f 402354497 12 Storm Water/Erosion Control Stormwater BMP's will be constructed around the perimeter of the site prior to, or at the beginning of construction. The location will be constructed to promote sheet-flow and infiltration. Topography and construction layout would allow the A30-01 location to be graded in a manner that diverts stormwater away from the irrigation/borrow ditches along County Road 66 and County Road 51 (North and East). Accordingly, the location will be constructed and graded to capture and divert stormwater into a temporary sediment trap with discharge points proposed to be on the east and south sides of the location (surface topography naturally slopes to the southeast). Additionally, the entire location, including sediment trap discharge point(s), will be surrounded by sediment wattles to ensure stormwater goes through two BMPs prior to surface discharge. At the conclusion of initial construction activities, the location will be seeded and mulched to promote long-term stabilization. Waddles will remain in place until the site has been stabilized, and the sediment trap will remain in place until construction is complete (when it will be reclaimed with the pad following drilling and well completion activities). Any future construction activities will preserve stabilized areas to the extent possible and employ BMPs in similar “treatment train” layouts. false 4661e8c9-09d1-47b6-82f9-d6e2501eb5dd 402354497 22 Drilling/Completion Operations COGCC Rule 604.c.(2)B. Closed Loop Drilling Systems – Pit Restrictions. Operator will utilize a closed-loop drilling system and commits that drilling system pits will not be used under this approval. false 52a0e5ed-99a1-4905-80c2-dc6a36bdf71a 402354497 7 Planning SURFACE WATER FEATURE SENSITIVE AREA DETERMINATION Shallow Groundwater and Surface Water Protection Grading and drainage of the well pad will be engineered with structural controls to ensure flow to the perimeter channel and into a sediment-trap structure protecting downgradient surface water features (irrigation ditches). In the event of a spill or leak, Operator will investigate the extent of the impacts to determine if groundwater has been impacted. The investigation could include sampling groundwater from within an excavation, drilling and sampling temporary well points or permanent wells, or sampling existing wells, as necessary. If impacts are identified, the extent of the impacts will be delineated and will be remediated to Table 910 standards under an approved Form 27. false 1555d160-ef57-417f-8b48-dfe1c376e474 402354497 10 General Housekeeping COGCC Rule 604.c.(2)T. Well site cleared. Within ninety (90) days after a well is plugged and abandoned, the well site shall be cleared of all non-essential equipment, trash, and debris. For good cause shown, an extension of time may be granted by the Director. false d3ca9d8d-72f3-48f9-9151-e156ebd60a03 402354497 14 Material Handling and Spill Prevention COGCC Rule 604.c.(2)N. Control of fire hazards. Any material not in use that might constitute a fire hazard shall be removed a minimum of twenty-five (25) feet from the wellhead. Any electrical equipment installations inside the offset area shall comply with API RP 500 classifications and comply with the current national electrical code as adopted by the State of Colorado. Flammable liquids shall not be stored within fifty (50) feet of the wellbore, except for the fuel in the tanks of operating equipment or supply for injection pumps. Where terrain and location configuration do not permit maintaining this distance, additional equivalent safety measures will be taken. Per Operator’s WOGLA application, the Platte Valley Fire Protection District (POC: Barry Schaefer 970-353-3890) will be contacted as local responder for control of fire hazards. false c7af7082-80fd-415b-8ab4-ec582347549b 402354497 20 Emissions mitigation Type: Produced Natural Gas Per natural gas produced from the well pad; Noble Energy intends to connect to a gas sales line at the first indication of salable quality gas. The sales line is in-place and during any emergency where the sales line is not operational, Operator would shut-in production false 04acee6d-3104-48fd-9bc3-035d3363ad63 402354497 11 General Housekeeping Housekeeping will consist of neat and orderly storage of materials and fluids. Wastes will be temporarily stored in sealed containers and regularly collected and disposed of at offsite, suitable facilities. If spills occur prompt cleanup is required to minimize any commingling of waste materials with stormwater runoff. Routine maintenance will be limited to fueling and lubrication of equipment. Drip pans will be used during routine fueling and maintenance to contain spills or leaks. Any waste product from maintenance will be containerized and transported offsite for disposal or recycling. There will be no major equipment overhauls conducted onsite. Equipment will be transported offsite for major overhauls. Cleanup of trash and discarded materials will be conducted at the end of each work day. Cleanup will consist of patrolling the roadway, access areas, and other work areas to pickup trash, scrap debris, other discarded materials, and any contaminated soil. These materials will be disposed of properly. false 6e0c3af8-7435-4860-83ca-fe522949ef88 402354497 8 Traffic control COGCC Rule 604.c.(2)D. Traffic Plan. Speed limits will be enforced. The traffic plan and route will include mitigation of impacts from temporary operations by applying water or magnesium chloride as dust suppression within 1000’ of occupied residences on Weld County Road 66 and County Road 51, and on lease roads as necessary in cooperation with the county false 640a72bc-74b7-4d95-8056-433ed1a453cf 402354497 13 Material Handling and Spill Prevention COGCC Rule 604.c.(2)K. Pit level indicators. Due to using a closed loop system pits will not be used. false 402354497 Gerald Lee Roth

32100 County Road 49

Greeley CO 80631 402354497 6 Six (6) 2-4" Steel Three Phase Flowlines, Eight (8) 2-4" Steel Gas Lift Lines, Two (2) 12" Temp Poly Lines for fresh water 1 402354497 C true 402354497 F true 402354497 false false false false false false false false Thread was being aborted.