| Form 27/27A |  Related  Doc |
| Date Submitted: | 1/20/2022 |
| Date Recv'd: | 1/20/2022 | Assigned by: | Rick Allison |
| DocNum: | 402927280 | Facility ID: | 480748 |
| Document Type: | FORM 27 | Project Number: | 21699 |
| Operator Information: |
| Operator: | HIGHPOINT OPERATING CORPORATION |
| Oper. No. | 10071 |
| Address: | 555 17TH ST STE 3700 DENVER CO 80202 |
| Type Of Facility: | SPILL OR RELEASE |
| Fac. Name | Fiducial 6-62-34_35 SWSW |
| County Name: | WELD |
| Operator contact: | Luke Kelly |
| qtrqtr: SWSW | section: 34 | township: 6N | range: 62W | meridian: 6 |
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| Remediation Details: |
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| Reason for Report: SPILL |
| Cause of Condition: SPILL OR RELEASE |
| Potential Receptors: Riverine - 455' ENE
Freshwater Emergent - 4870' NNW |
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| FURTHER SITE INV: | A soil boring assessment is proposed to laterally and vertically define residual protection of groundwater soil screening level impacts observed in CS-SS-08 and CS-FS-05. Soil samples will be collected for TPH (C6-C36) and Table 915-1 organics in soil. 5 locations are proposed for sample collected. The proposed assessment map is attached.
If groundwater is not encountered, refusal/consolidated lithology is encountered, and/or residual organics in soil per COGCC Table 915-1 concentrations do not exceed COGCC Table 915-1 residential soil screening levels, no further action for the release will be requested. |
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| HOW REMEDIATE: | As of 12/1/2021, soil identified to exceed COGCC Table 915-1 was removed and transported offsite for disposal. Residual organics in soil per COGCC Table 915-1 exceed the COGCC Table 915-1 protection of groundwater soil screening levels (GSLs), only. A site investigation will be completed to determine the applicability of GSLs at the site. If groundwater is not encountered and/or residual concentrations in soil are laterally and vertically defined during the site assessment, Bonanza Creek proposes to close the remediation using the residential soil screening levels per COGCC Table 915-1. |
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| INITIAL ACTION: | On September 14, 2021, a compromised separator released approximately 2.5 bbls of oil to the ground outside of containment. The separator was removed, and impacted soil was removed and transported to an off-site disposal location. Confirmation soil samples were collected and submitted for laboratory analysis. |
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| MONITORING PLAN: | N/A |
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| RECLAMATION PLAN: | The release location is an active O&G facility. Reclamation in accordance with COGCC 1000 Series Rules will be completed following decommissioning activities at a later date. |
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| SOURCE REMOVED: | As of 12/1/2021, soil identified to exceed COGCC Table 915-1 was removed and transported offsite for disposal. |
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| Correspondence Log: |
| Final Resolution | | Date | Case Closed? | Letter Sent? | CECMC Person | | 3/23/2022 | Y | | Rob Young | |
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| Coordinates: |
| Type | Facility ID | Facility Name/Num | Lat/Long |
| Facility | 480748 | Fiducial 6-62-34_35 SWSW
| 40.440320/-104.317498 |
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