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402226219 02A 2020-01-07T06:15:51.77-07:00 26580 BURLINGTON RESOURCES OIL & GAS LP

925 N ELDRIDGE PARKWAY

HOUSTON TX 77079 Maxwell Blair 303 268-3711 Larry Smith Sr. Regulatory Coord 2020-01-07T06:15:51.77-07:00 2020-01-07T06:15:51.63-07:00 UPLOADED lsmith 2019-10-30T11:26:03.21-06:00 lsmith larry.r.smith@conocophillips.com 10.00000 maxwell.o.blair@conocophillips.com christob christob 2020-01-16T10:05:25.237-07:00 402226219 true false false false false false 3AH EASTERN HILLS 4-65 17-18 ARAPAHOE NESE 17 4S 65W 6 5639 1380 FSL 700 FEL 39.700330 -104.680887 1.5 2018-04-24T00:00:00-06:00 Alan Hnizdo 8 5 2 4 1 1 1 1 1 From the wellheads, 3” carbon steel flowlines run to an inlet manifold which routes flow to either bulk or test 2 phase separators. High pressure gas from the bulk and test 2 phase separators is sent down the sales gas line to a third party. The liquid from the bulk and test 2 phase separators is carried to bulk and test 3 phase separators for further processing. Low pressure gas off the 3 phase bulk and test separators is sent to a vapor recovery unit to compress the low pressure gas so it can be sent down the high pressure sales line to a third party. Oil from the bulk and test 3 phase separators is transferred to a vapor recovery tower then to tankage for storage. Water from the bulk and test 3 phase separators is transferred to the water tanks for storage. 2020-04-01T00:00:00-06:00 2020-10-01T00:00:00-06:00 5641 true false false OFFSITE Recycle/reuse Commercial Disposal facility for freshwater uesd to drill surface section. Oil based mud used for remainder of lateral drilled will be reused from pad to pad. FEE FEE true false true false Surface Use Agreement true 19920030 false false true false true false NrB - Nunn-Bresser-Ascalon complex, 0 - 3 percent slopes false true false false false false false false false false true 2400 1550 27 false false No false 11.40 7.70 4 2 true OFFSITE Commercial Disposal false true Nearest Water Well: Livestock well no. 35635. Nearby monitoring well, permit no. 13447-F. 609 false false false false false false false false false NO true true true false false false false false false false false false Aurora Municipality true true In Process Resubmitted to City of Aurora on November 11, 2019. Anticipate approximate 8 week timeframe between submission and disposition. Oil and Gas Permit 2019-11-11T00:00:00-07:00 402226219 The location used for footages in the Location Identification portion is the EasternHills 4-65 17-18 3AH (Doc #402233547). "Other" attachment is executed Operator Agreement between City of Aurora and ConocoPhillips. An open house was hosted in Aurora on August 6, 2019 to provide site specific information to all community members within a 1 mile radius of this well site. Overall striving for 360 degree traffic flow on our pad sites. Simops (simultaneous operations) capable pad 151’ Existing well to new well- buffer zone for drilling activity, traffic and fall radius of derrick 174’ from well row to south edge of pad- rig sticks out 120ft from well center. Remaining space for traffic and general back-in parking 225’ East/West- designed for trailers (offices at a minimum, living quarters too normally) to be on perimeter and outside the ~150’ fall radius. oNote- on drillers side- catwalk sticks out 93’ so allowing minimum 60ft for tubulars handling, need ~150’ anyways from well center to trailers oNote- off driller side- pits, solids control equipment, etc sticks out >150ft, then need additional room for traffic flow and loading cuttings trucks 402226219 402226219 FORM 2A SUBMITTED 402226219.pdf 402226219 402235201 MULTI-WELL PLAN Eastern Hills 4-65 17-18 3AH Multi-Well Plan.pdf 242406 402226219 402235202 HYDROLOGY MAP Eastern Hills 4-65 17-18 3AH Hydrology Map.pdf 901648 402226219 402235203 LOCATION PICTURES Eastern Hills 4-65 17-18 3AH Location Photos.pdf 357517 402226219 402236071 SURFACE AGRMT/SURETY Condensed Parklands SUA_FINAL.pdf 2271215 402226219 402236076 OTHER _OG Operator Agreement City of Aurora_Signed Full Document (Document No. 037206).pdf 2856739 402226219 402236093 CONST. LAYOUT DRAWINGS Eastern Hills 4-65 17-18 3AH Construction Drawings.pdf 574076 402226219 402236101 NRCS MAP UNIT DESC Eastern Hills 4-65 17-18 3AH Form 2A_NRCS Map_ Nunn-Bresser-Ascalon Complex.pdf 760141 402226219 402262160 LOCATION DRAWING Eastern Hills 4-65 17-18 3AH Location Drawing and Interim Reclamation.pdf 1067459 402226219 402262417 ACCESS ROAD MAP Eastern Hills 4-65 17-18 3AH Access Road Map.pdf 1653396 402226219 402233547 02 Eastern Hills 4-65 17-18 3AH 402226219 402233579 02 Eastern Hills 4-65 17-18 3BH 402226219 402233607 02 Eastern Hills 4-65 17-18 3CH 402226219 402233614 02 Eastern Hills 4-65 17-18 3DH 402226219 402235237 02 Eastern Hills 4-65 17-18 4AH 402226219 402237114 02 Eastern Hills 4-65 17-18 4BH 402226219 402237173 02 Eastern Hills 4-65 17-18 4CH 402226219 402237445 02 Eastern Hills 4-65 17-18 4DH 3245073e-f7cb-41db-8450-0b9185cb46d0 402226219 6 Noise mitigation ConocoPhillips will use noise mitigation (berming, bales, or sound walls) during the drilling and completion phases for the Eastern Hills South well site. Based upon modeled receptor locations, the Eastern Hills South wellsite is predicted to comply with the A-weighted and C-weighted COGCC noise limits. false c9cf4cf5-c2d6-4e53-9c6a-1ccc9382594a 402226219 10 Interim Reclamation Secure, opaque fencing will be installed at the Eastern Hills South Well Site after interim reclamation has been completed. Fencing will be 8' in height. false c472816e-ea33-4219-9f73-2713d29dd4f4 402226219 8 Odor mitigation ConocoPhillips will mitigate odors by routing to closed loop systems to the maximum extent practicable. If ConocoPhillips receives complaints from a Residential Building within 1,320 feet from the site, ConocoPhillips will take measures to mitigate the odor within 24 hours, based on the specific circumstances. false eba82d3f-24a6-4448-9235-504be1cc4972 402226219 9 Drilling/Completion Operations Lighting is only used during the Drilling and Completion Phases of operations. No permanent lighting will be installed. All lighting used will be situated so that is downcast and does not shine beyond the boundary of the oil and gas operations area. false a4a73bec-7926-4f1f-ae1b-760173db63ff 402226219 7 Emissions mitigation This comprehensive plan (see attached) addresses policies and procedures used to evaluate, eliminate, capture, or minimize all potentially harmful emissions and compliance with all applicable state and federal regulations, including regulations promulgated by Colorado Department of Public Health and Environment, Colorado Oil and Gas Conservation Commission and United States Environmental Protection Agency. Combustors will be available at the Eastern Hills South Well Site during the entire production phase to eliminate fugitive emissions for maintenance or emergency use only. The device will be fired using natural gas and operate with a 98% or higher hydrocarbon destruction efficiency. The device will be designed and operated in a manner that will ensure no visible emissions during normal operation. ConocoPhillips will comply with the EPA Reduced Emission Completions rules (under 40 CFR 60 Subpart OOOO and OOOOa) for oil and gas wells. ConocoPhillips will apply best management practices to safely maximize resource recovery and minimize releases to the environment. ConocoPhillips was an early adopter of reduced emissions completions (green completions), a charter member of the Natural Gas Star program, and is committed to reducing emissions from flaring and venting. false 85058619-3bd8-44c0-8d17-7fd1f8a826d9 402226219 5 Dust control Dust associated with Site activities and traffic on roads will be minimized throughout all phases such that there are no visible dust emissions from sites or roads to the maximum extent practicable given wind conditions. Numerous mitigation measures are in place to minimize dust emissions including (but not limited to): application of fresh water to roads and ground during earth moving activities, curtailment of work during windy conditions and re-establishment of vegetation on disturbed areas that are not graveled. false f74b5ac8-1ad0-4430-bc63-9d843590659f 402226219 1 Storm Water/Erosion Control ConocoPhillips will sample existing water wells prior to drilling activities and will continue to sample existing or installed wells through the Production Phase, until final Reclamation Phase is completed for the well site to ensure that groundwater has not been contaminated by ConocoPhillips activity. As the well is constructed, concentric layers of steel casing and cement form the barrier to protect groundwater resources from the contents that will later flow inside the well mitigating any potential pollution for groundwater pollution. false b8e7f5b9-a5f5-4ff0-b3e0-a66a94390b9a 402226219 2 Material Handling and Spill Prevention All facilities are capable of being remotely monitored and remotely shut down, which includes isolation at the well head. Engineered liner systems are used in secondary steel containment systems for tank batteries. Pollution control containers (spill boxes) are used on truck loading lines and are placed within the limits of the secondary containment system. Automatic shutdown level devices are installed on each tank with remote monitoring capabilities. Automatic shutdown level devices are installed on all pressure vessels and liquid knockouts. Automatic shutdown pressure devices are installed on flowlines from well heads to facilities with remote monitoring capabilities. Additionally, cathodic protection is used on buried steel lines to mitigate corrosion. Automatic shutdown pressure devices are installed on process vessels with remote monitoring capabilities. false 06937aa8-1078-45f5-960c-b6021507e2b3 402226219 3 Material Handling and Spill Prevention Liquid Level High Kills: These kills prevent liquids from exiting a given vessel via a gas stream.  If liquids enter a gas stream then the potential to experience small spills increases due to improper equipment for the process medium in the pipe.  For example, if level high kills were not in place, liquid could be sent to an atmospheric combustor intended solely for the use of burning excess, or waste, gas in upset situations. Liquid Level Low Kills:  Liquid level low kills can be considered a more generic kill that gives indication of one of potentially numerous process upsets.  The most likely culprit resulting in a LSL kill is a hung dump valve (minor process upset), however these kills can also capture leaks to atmosphere.  If a significant leak occurs on location, predetermined vessel level setpoints will no longer be valid and the affected vessel will then shut-down on a liquid level low kill. Pressure High Kills:  Pressure high kills are somewhat self-explanatory, however the main reason we incorporate high pressure kills is not necessarily to protect vessels.  We have PSV’s installed on every vessel that prevent the vessels from over-pressuring, but we prefer to never pop a PSV as this is both a process safety risk as well as an environmental incident.  We set our Pressure High kills to shut-down the site at approximately 80% of max allowable working pressure of each vessel, which shuts down the site before PSVs relieve to the atmosphere. Pressure Low Kills:  Very similar to the Liquid Level Low kills, the low pressure shut-down alarm is a fairly generic indication of a process upset.  Pressure low site shut-downs typically prevent gas or vapor spills, however they can also catch and prevent liquid spills. 2-Phase vessel:  On our current 2-Phase vessels we incorporate the following kills: liquid level high, pressure high, and pressure low.  Future 2-Phase vessels are planned to be outfitted with liquid level low switches as well. 3-Phase vessel: Our current and future 3-Phase vessels (heater treater) will be outfitted with all (4) site ESD kills. Along with automated shut-downs we have preventative maintenance and best practices in place to prevent leaks from vessels.  These include: • Yearly shut-downs and visual inspections of each 2-phase and 3-phase vessel on site • Yearly NDT (Non-Destructive Testing) of each 2-Phase and 3-Phase vessel shell and head on site o Vessels that fail this test are removed from service • Conservative corrosion allowances • Internal coating to prevent corrosion • Semi-Annual PSV testing • Weekly environmental checks by operations personnel (weekly at a minimum, usually every 1-2 days per site) • NDT of all water piping to prevent leaks due to corrosion • NDT spot checking of various flowlines to monitor for thin walled piping due to erosion or corrosion • Yearly test of all devices that shut down the facility (including the 4 shut-down devices listed above) • The above best management practices are similar to those utilized by PSM facilities false 488009e5-4321-40a3-bc8c-e3c698fd5ca6 402226219 4 Material Handling and Spill Prevention A containment system capable of containing one and one-half times (150%) the capacity of the largest vessel, plus sufficient freeboard to prevent overflow will be constructed around all permanent tanks at the Eastern Hills South Well Site. The containment system will be constructed of a steel-rim berm and lined with a synthetic or engineered liner, mechanically connected to the steel-rim which will surround all primary containment vessels. When used, temporary vessels will have secondary containment constructed from lined earthen berms or pre-engineered, duck-pond style containment systems. All berms and containment devices will be inspected quarterly. All flowlines (the pipeline connecting the wellhead to the production facility) are contained entirely within the boundary of the well pad. No off-location flowlines as defined and set forth in COGCC Rule 1101, will be utilized. All tanks installed on the well site will be no taller than sixteen feet (16’). false 402226219 Alpert Corporation

3033 E 1st Avenue

Suite 725 Denver CO 80206 303-773-3400 303-694-6445 402226219 8 5 2 4 1 1 1 1 1 From the wellheads, 3” carbon steel flowlines run to an inlet manifold which routes flow to either bulk or test 2 phase separators. High pressure gas from the bulk and test 2 phase separators is sent down the sales gas line to a third party. The liquid from the bulk and test 2 phase separators is carried to bulk and test 3 phase separators for further processing. Low pressure gas off the 3 phase bulk and test separators is sent to a vapor recovery unit to compress the low pressure gas so it can be sent down the high pressure sales line to a third party. Oil from the bulk and test 3 phase separators is transferred to a vapor recovery tower then to tankage for storage. Water from the bulk and test 3 phase separators is transferred to the water tanks for storage. 4 2 402226219 C true false 402226219 F true false 402226219 false false false false false false false false Thread was being aborted.