| OGLA | Form: (02A)
400293677
06/15/2012 | SITE SPECIFIC COAs:
Operator must ensure secondary containment for any volume of fluids contained at well site during drilling and completion operations (as indicated on the Construction Layout Drawings); including, but not limited to, construction of a berm or diversion dike, diversion/collection trenches within and/or outside of berms/dikes, site grading, or other comparable measures (i.e., best management practices (BMPs) associated with stormwater management) sufficiently protective of nearby surface water. Any berm constructed at the well pad location will be stabilized, inspected at regular intervals (at least every 14 days), and maintained in good condition.
Operator must implement best management practices to contain any unintentional release of fluids, including any fluids conveyed via temporary surface or buried pipelines.
Either a lined drilling pit or closed loop system must be implemented.
The moisture content of any drill cuttings in a cuttings pit, trench, or pile shall be as low as practicable to prevent accumulation of liquids greater than de minimis amounts. At the time of closure, the drill cuttings, if are to remain onsite, must also meet the applicable standards of table 910-1.
Notify the COGCC Oil and Gas Location Assessment (OGLA) Specialist for Western Colorado (Dave Kubeczko; email dave.kubeczko@state.co.us), the COGCC Field Inspection Supervisor for Northwest Colorado (Shaun Kellerby; email shaun.kellerby@state.co.us), and the COGCC Field Inspector for Garfield County (Mike Longworth; email mike.longworth@state.co.us) 48 hours prior to start of pad construction, pit liner installation (if applicable), rig mobilization, spud, and start of hydraulic stimulation operations using Form 42 (the appropriate COGCC individuals will automatically be email notified, including the LGD for hydraulic stimulation operations).
Flowback and stimulation fluids must be sent to tanks, separators, or other containment/filtering equipment before the fluids can be placed into any pipeline or pit located on the well pad or into tanker trucks for offsite disposal. The flowback and stimulation fluid tanks, separators, or other containment/filtering equipment must be placed on the well pad in an area with additional downgradient perimeter berming. The area where flowback fluids will be stored/reused must be constructed to be sufficiently impervious to contain any spilled or released material. |
| OGLA | Form: (04)
400859025
08/11/2015 | The proposed MLVT can only be used to store freshwater; no other fluids (produced water, flowback water) can be sent to the MLVT. |
| Environmental | Form: (04)
400937158
11/16/2015 | Per the COGCCs June 13, 2014 "Policy of The Use of Modular Large Volume Tanks in Colorado," provide a contingency plan/emergency plan by November 27, 2015 |
| Environmental | Form: (04)
400937158
11/16/2015 | All E&P waste shall be removed from the MLVT by December 31, 2015. |
| Environmental | Form: (04)
400937158
11/16/2015 | By November 27, 2015, provide secondary and tertiary containment documentation and verification. |
| Environmental | Form: (04)
400937158
11/16/2015 | By November 27, 2015, provide subgrade compaction documentation. |
| Environmental | Form: (04)
400937158
11/16/2015 | Per the COGCCs June 13, 2014 "Policy of The Use of Modular Large Volume Tanks in Colorado," provide a summary of daily inspections and records of repairs and/or maintenance that were performed regarding the MLVT at this Location by November 27, 2015. |
| Environmental | Form: (04)
401001343
03/10/2016 | Please notify the COGCC 48 hours in advance prior to the initiation of landfarming operations. Specify the volume of cuttings to be remediated and the estimated area to be used for landfarming.
In addition to or to emphasize the procedure proposed by BlackHills, please ensure that:
1) Soil to be landfarmed must be spread out over compacted, low permeability soil (or over a liner if soil is farily sandy);
2) The landfarmed area (cell(s)) must be bermed (storm water management practice);
3) Contaminated media shall be treated in lifts that are up to 18 inches thick;
4) Landfarmed material should be watered and tilled regularly to promote bacteria growth and bioremediation;
5) Confirmation composite samples shall be taken to assess if landfarmed material complies with Table 910-1 and is ready for backfilling or beneficial use. Composite samples should be taken from a grid and be statistically representative of the material in the cell(s).
6)When submitting the results to COGCC, please include a figure describing the location and depth of the samples.
7) Report to COGCC (via e-form 04) when landfarming operation is complete and indicate final disposition of landfarmed material.
|
| Environmental | Form: (04)
402463267
08/11/2020 | Operator shall provide all soil sampling locations, analytical results, and complete laboratory analytical reports for soil sampling events taking place from May 2016 to present via a Supplemental eForm 27.
If complete soil sampling documentation is unavailable, Operator shall demonstrate compliance of the treated cuttings with Table 910-1 by collecting an appropriate number of representative samples for analytes listed on Table 910-1. |