| Pre-Construction | Form: (02A )
400549682
3/23/2014 | Prior to construction, Encana will write a "Risk Assessment Need Determination" to identify any further mitigation measures that will be needed for this location that meet Encana's Best Managment Practices. |
| Traffic control | Form: (02A )
400549682
3/23/2014 | At this time, Weld County does not require traffic control plans. Encana has already obtained the necessary access permit for this location through the county. |
| General Housekeeping | Form: (02A )
400549682
3/23/2014 | Any material not in use that might constitute a fire hazard will be removed a minimum of twenty-five (25) feet from the wellheads. |
| General Housekeeping | Form: (02A )
400549682
3/23/2014 | Encana will maintain the site so that all surface trash, debris, scrap or discarded material connected with the operations of the property will be removed from the premises or disposed of in a legal manner.
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| Construction | Form: (02A )
400549682
3/23/2014 | At the time of construction, all leasehold roads will be constructed to accommodate local emergency vehicle access requirements, and will be maintained in a reasonable condition.
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| Construction | Form: (02A )
400549682
3/23/2014 | This location will be constructed in such a manner that noise mitigation may be installed and removed without disturbing the site or landscaping. |
| Noise mitigation | Form: (02A )
400549682
3/23/2014 | Encana will perform a baseline noise survey prior to any operational activity measuring dBA at a distance 350 feet from the noise source. If low frequency noise is a concern, we will measure dBC at 25 feet from the occupied structure towards the noise source. As necessary based on the survey, we will install temporary sound walls to minimize noise and light impacts during drilling and completions.
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| Noise mitigation | Form: (02A )
400549682
3/23/2014 | Encana will construct the subject location to allow potential future noise mitigation installation without disturbance.
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| Emissions mitigation | Form: (02A )
400549682
3/23/2014 | Temporary flowback flaring an doxidizing equipment will include: adequeately sized equipment to handle 1.5 times the largest flowback volume of gas experienced in a ten mile radius. If there is overrun, Encana will shut in the well versus freely venting
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| Drilling/Completion Operations | Form: (02A )
400549682
3/23/2014 | Encana will utilize a closed-loop system for drilling operations at this location. Encana will not utilize pits.
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| Drilling/Completion Operations | Form: (02A )
400549682
3/23/2014 | The rig that will drill the wells at this location is without kelly. A double ram with blind ram and pipe ram as well as an annular preventer will be used. At least one person at the well site during drilling operations will have the Mineral Management certification or Director approved training for blowout prevention. |
| Drilling/Completion Operations | Form: (02A )
400549682
3/23/2014 | 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 will be performed to seventy percent (70%) of working pressure or seventy percent (70%) of the internal yield of casing, whichever is less. Pressure testing will be conducted and the documented results will 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 will be conducted on a daily basis when practicable.
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| Drilling/Completion Operations | Form: (02A )
400549682
3/23/2014 | Adequate blowout prevention equipment will be used on all well servicing operations. Backup stabbing valves will be used on well servicing operations during reverse circulation. Valves will be pressure tested before each well servicing operation using both low-pressure air and high-pressure fluid.
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| Drilling/Completion Operations | Form: (02A )
400549682
3/23/2014 | Guy line anchors in the DJ Basin are not installed. Encana will use an engineered base beam that we guy wire anchor the derricks to.
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| Drilling/Completion Operations | Form: (02A )
400549682
3/23/2014 | Prior to drilling operations, Operator will perform an anti-collision scan of existing offset wells that have the potential of being within close proximity of the proposed well. This anti-collision scan will include definitive MWD or gyro surveys of the offset wells with included error of uncertainty per survey instrument, and compared against the proposed wellpath with its respective error of uncertainty. If current surveys do not exist for the offset wells, Operator may have gyro surveys conducted to verify bottomhole location. The proposed well will only be drilled if the anti-collision scan results indicate that there is not a risk for collision, or harm to people or the environment. For the proposed well, upon conclusion of drilling operations, an as-constructed gyro survey will be submitted to COGCC with the Form 5.
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