| Planning | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)I. BOPE testing for drilling operations.
Planning:
• Upon initial rig-up and at least once every thirty (30) days during drilling operations thereafter, pressure testing of the casing string and each component of the blowout prevention equipment including flange connections shall be performed to seventy percent (70%) of working pressure or seventy percent (70%) of the internal yield of casing, whichever is less. Pressure testing shall be conducted and the documented results shall be retained by the operator for inspection by the Director for a period of one (1) year. Activation of the pipe rams for function testing shall be conducted on a daily basis when practicable.
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| Planning | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)J. BOPE for well servicing operations.
Planning:
• Adequate blowout prevention equipment shall be used on all well servicing operations.
• Backup stabbing valves shall be required on well servicing operations during reverse circulation. Valves shall be pressure tested before each well servicing operation using both low-pressure air and high-pressure fluid.
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| Planning | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)L. Drill stem tests.
Planning:
• Closed chamber drill stem tests shall be allowed. All other drill stem tests shall require approval by the Director.
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| Planning | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)U. Identification of plugged and abandoned wells.
Planning:
• 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.
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| Planning | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)V. Development from existing well pads.
Planning:
• 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). If any operator asserts it is not possible to comply with, or requests relief from, this requirement, the matter shall be set for hearing by the Commission and relief granted as appropriate.
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| Planning | Form: (02A )
401286218
10/9/2017 | COGCC Rule 803 Lighting
Planning:
• Lighting on location is considered temporary and will be used during recompletion activities. Permanent lighting will not be installed and utilized during normal production operations. Temporary lighting will be directed downward, inward, and shielded towards location to avoid glare on public roads and Building Units within 1,000 feet. Lighting will be turned off when practical, i.e., no operations being conducted.
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| Traffic control | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)D. Traffic Plan. Noble has communicated with the local jurisdiction regarding traffic plans and established the routes using main thoroughfares as much as possible.
Traffic Control:
• Speed limits will be enforced. The traffic plan and route include mitigation of impacts from temporary operations by applying magnesium chloride as dust suppression within 1000’ of occupied residences on Weld County Road 14 and Weld County Road 55 as necessary.
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| General Housekeeping | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)P. Removal of surface trash.
General Housekeeping:
• 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.
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| General Housekeeping | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)T. Well site cleared.
General Housekeeping:
• 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.
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| General Housekeeping | Form: (02A )
401286218
10/9/2017 | 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. |
| Storm Water/Erosion Control | Form: (02A )
401286218
10/9/2017 | Stormwater management plans (SWMP) are in place to address construction, drilling and operations associated with Oil & Gas development throughout the state of Colorado in accordance with Colorado Department of Public Health and Environment (CDPHE) General Permit No. COR- 038637. BMP's will be constructed around the perimeter of the site prior to, or at the beginning of construction. BMP's used will vary according to the location, and will remain in place and maintained until the pad reaches final reclamation. Noble Energy uses the BMPs or combination of BMPs listed below to control erosion and storm water runoff from construction, drilling, completion and operation activities:
Berm, Cattle Guard, Culvert, Detention Basin, Dewatering Operations, Discharge Trench, Ditch, Erosion Control Blanket, Filtrexx Sediment Control, Hydro-Mulch, Ripping, Rip-Rap, Sediment Trap, Seeding, Silt Fence, Soil Roughening, or Tracking Pad |
| Material Handling and Spill Prevention | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)F. Leak Detection Plan.
Material Handling and Spill Prevention:
• Noble Energy Inc. designs facilities to avoid releases and to be compliant with all regulations specific to leak detection and control (i.e. SPCC 40CFR112). Daily, monthly and annual inspections are performed at each facility to confirm operational integrity and regulatory compliance. Noble will perform maintenance if it is deemed necessary through any of the scheduled inspections. Automation technology is utilized to monitor any variations in pressures and fluid gauges which could indicate a leak.
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| Material Handling and Spill Prevention | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)K. Pit level indicators.
Material Handling and Spill Prevention:
• Due to using a closed loop system pits will not be used.
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| Material Handling and Spill Prevention | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)N. Control of fire hazards.
Material Handling and Spill Prevention:
• Any material not in use that might constitute a fire hazard shall be removed a minimum of twenty-five (25) feet from the wellhead, tanks and separator. Any electrical equipment installations inside the bermed area shall comply with API RP 500 classifications and comply with the current national electrical code as adopted by the State of Colorado.
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| Material Handling and Spill Prevention | Form: (02A )
401286218
10/9/2017 | 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. |
| Construction | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)G. Berm construction.
Construction:
• Lined, steel ring secondary containment will be constructed and shall enclose an area sufficient to contain and provide secondary containment for one-hundred fifty percent (150%) of the largest single tank. All containment devices shall be inspected at regular intervals and maintained in good condition. No potential ignition sources shall be installed inside the secondary containment area unless the containment area encloses a fired vessel. Refer to American Petroleum Institute Recommended Practices, API RP - D16.
• SWMP and SPCC plans will be in place to address and minimize potential impacts to nearby water conveyances and sensitive areas and direct stormwater from adjacent areas around the well pad and production facility.
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| Construction | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)M. Fencing requirements.
Construction:
• Unless otherwise requested by the Surface Owner, well sites constructed within the Designated Setback location will be fenced to restrict access by unauthorized persons.
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| Construction | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)R. Tank specifications.
Construction:
• All newly installed or replaced crude oil and condensate storage tanks shall be designed, constructed, and maintained in accordance with National Fire Protection Association (NFPA) Code 30 (2008 version). The operator shall maintain written records verifying proper design, construction, and maintenance, and shall make these records available for inspection by the Director. Only the 2008 version of NFPA Code 30 applies to this rule. This rule does not include later amendments to, or editions of, the NFPA Code 30. NFPA Code 30 may be examined at any state publication depository library. Upon request, the Public Room Administrator at the office of the Commission, 1120 Lincoln Street, Suite 801, Denver, Colorado 80203, will provide information about the publisher and the citation to the material.
• The Y34-16 Production Facility will have maintenance tanks as produced gas, water, and oil will be piped directly to a Supernode Facility.
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| Construction | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)S. Access roads.
Construction:
• 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. Noble Energy plans on building the access road off of WCR 14 for Drilling and Completion activities.
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| Construction | Form: (02A )
401286218
10/9/2017 | 1. A contiguous spray liner will be installed and will underlay the entire tank battery. The location of a partially buried cement water vault will be excavated prior to liner install.
2. A 60 bbl cement water vault will be utilized to collect excess produced water from oil tanks. Produced water in the vault will be removed as needed and disposed of in an approved UIC disposal well. The cement water vault is one piece with no seams designed to minimize potential for leaks. All piping associated with the use of the water vault will be aboveground and visually inspected on a regular basis.
3. The partially buried cement water vault will be installed above the spray in liner.
4. A sized steel secondary containment ring will be installed surrounding the entire tank battery. Sand and gravel bedding will be installed to protect the liner prior to placing equipment in the containment area.
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| Noise mitigation | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)A. Noise.
Noise Mitigation:
• Temporary operations – Baseline surveys will be completed near the residences to the northwest and south. Engineered sound walls no less than 24’ tall will be used on parts of the southern and western sides of the Y34-16 Well Pad to mitigate noise impacts to the residences. The use of equipment specific sound walls might be used around the rig generators depending on sound impacts during operations.
• Permanent facility – Sound walls may be installed around compressors that will be located at the Y34-16 Production Facility. Meter buildings will be installed around the meter equipment. These sound walls and meter building will be utilized to block sound to the residence located near the facility.
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| Noise mitigation | Form: (02A )
401286218
10/9/2017 | Permanent sound walls will be placed around sound-producing equipment |
| Emissions mitigation | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2).C. Green Completions – Emission Control Systems.
Emissions Mitigation:
• Flow lines, separators, and sand traps 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 are reasonably expected to be produced based on existing adjacent wells within 1 mile.
• Uncontrolled venting shall be prohibited in an Urban Mitigation Area.
• 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; and
o Auxiliary fuel with sufficient supply and heat to sustain combustion or oxidation of the gas mixture when the mixture includes non-combustible gases.
These wells will be tied directly into a sales line, so they will not need flaring at any time.
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| Drilling/Completion Operations | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)B. Closed Loop Drilling Systems – Pit Restrictions.
Drilling/Completion Operations:
• Closed loop drilling systems are required within the Buffer Zone Setback.
• Pits are not allowed on Oil and Gas Locations within the Buffer Zone Setback, except fresh water storage pits, reserve pits to drill surface casing, and emergency pits as defined in the 100-Series Rules.
• Fresh water pits within the Exception Zone shall require prior approval of a Form 15 pit permit. In the Buffer Zone, fresh water pits shall be reported within 30-days of pit construction.
• Fresh water storage pits within the Buffer Zone Setback shall be conspicuously posted with signage identifying the pit name, the operator’s name and contact information, and stating that no fluids other than fresh water are permitted in the pit. Produced water, recycled E&P waste, or flowback fluids are not allowed in fresh water storage pits.
• Fresh water storage pits within the Buffer Zone Setback shall include emergency escape provisions for inadvertent human access.
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| Drilling/Completion Operations | Form: (02A )
401286218
10/9/2017 | COGCC Rule 604.c.(2)H. Blowout preventer equipment (“BOPE”).
Drilling/Completion Operations:
• Blowout prevention equipment for drilling operations in a Designated Setback Location shall consist of (at a minimum):
o Rig with Kelly. Double ram with blind ram and pipe ram; annular preventer or a rotating head.
o Rig without Kelly. Double ram with blind ram and pipe ram.
Mineral Management certification or Director approved training for blowout prevention shall be required for at least one (1) person at the well site during drilling operations.
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