| Form 27/27A |  Related  Doc |
| Date Submitted: | 6/22/2017 |
| Date Recv'd: | 6/22/2017 | Assigned by: | Chris Canfield |
| DocNum: | 401312875 | Facility ID: | 336384 |
| Document Type: | FORM 27 | Project Number: | 10344 |
| Operator Information: |
| Operator: | PDC ENERGY INC |
| Oper. No. | 69175 |
| Address: | 1099 18TH STREET SUITE 1500 DENVER CO 80202 |
| Type Of Facility: | LOCATION |
| Fac. Name | STANLEY OLSON-62N68W |
| County Name: | WELD |
| Operator contact: | Jason Davidson |
| qtrqtr: SWNE | section: 14 | township: 2N | range: 68W | meridian: 6 |
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| Remediation Details: |
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| Reason for Report: OTHER |
| Cause of Condition: OTHER |
| Potential Receptors: Occupied building and livestock in place 1000 ft northeast (cross-gradient). |
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| FURTHER SITE INV: | The operator proposes to conduct a limited subsurface investigation to provide an increased understanding of the vertical and lateral distribution of impacted soil around boring SB-3. The operator proposes to install up to three groundwater monitoring wells to sample for BTEX. |
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| HOW REMEDIATE: | A soil remediation plan will be developed based on the results of the limited subsurface investigation scheduled to be conducted on July 5-6, 2017. Groundwater remediation is addressed below. |
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| INITIAL ACTION: | Soil and groundwater impacts were discovered during initial subsurface investigation activities associated with due diligence. Refer to Figure 1 and the laboratory analytical results included in the attached Form 27 that was submitted to COGCC via email on July 22, 2016. The operator did not receive a response from the COGCC with regard to the approval or disapproval of the Form 27. An additional limited subsurface investigation is scheduled to be conducted on July 5-6, 2017. |
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| MONITORING PLAN: | The operator proposes to install up to three groundwater monitoring wells to monitor until four consecutive quarters of analytical results below Table 910-1 concentration levels for BTEX are obtained. The well locations are depicted on the attached Figure 1. |
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| RECLAMATION PLAN: | If necessary, the site will be reclaimed in accordance with COGCC 1000 series rules. |
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| SOURCE REMOVED: | Operator will either dig and haul or treat any soils onsite that exceed Table 910-1 concentration levels. |
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| Correspondence Log: |
| Final Resolution | | Date | Case Closed? | Letter Sent? | CECMC Person | | N/A | N | | Kari Brown | | | N/A | N | | Kari Brown | | | N/A | N | | Chris Canfield | | | N/A | N | | Chris Canfield | | | N/A | N | | Chris Canfield | | | N/A | N | | Laurel Anderson | | | N/A | N | | Kari Brown | | | N/A | N | | Chris Canfield | | | N/A | N | | Chris Canfield | | | N/A | N | | Nikki Graber | | | 7/24/2023 | Y | | Laurel Anderson | | | N/A | N | | Chris Canfield | | | N/A | N | | Chris Canfield | | | N/A | N | | Kari Brown | | | N/A | N | | Chris Canfield | | | N/A | N | | Chris Canfield | | | N/A | N | | Kari Brown | |
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| Coordinates: |
| Type | Facility ID | Facility Name/Num | Lat/Long |
| Facility | 336384 | STANLEY OLSON-62N68W
14SWNE | 40.141467/-104.965974 |
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