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| Briggs 1-11 Wellhead - #492944 Information | Status: CL - 1/23/2026 |
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| Spill Type: | Release | Facility Name/No.: | Briggs 1-11 Wellhead / | | Facility Type: | SPILL OR RELEASE | Facility Status: | CL | | Date of Discovery: | 1/20/2026 | Date Closed: | 1/23/2026 | | Operator: | KERR MCGEE OIL & GAS ONSHORE LP | Operator Number: | 47120 | | County: | WELD - #123 | Location: | NENE 1 3N67W | | Doc Number: | 404513968 | Lat/Long: | 40.258650 / -104.832630 Source: ACTUAL based On LatLong | Municipality
(if within municipal boundaries): | -- | | Waters of the State: | | Impacted Media: | | Related Remediation Project Number
if work proceeding under an approved Form 27: | N/A | | | | Spill Description: | | Per the general comments issued by the ECMC for denied Form 27 Document No. 404063972, while conducting additional soil investigations at the Briggs 1-11 wellhead, historically impacted soil was discovered at the former wellhead location. The volume of the release is unknown. Assessment activities are ongoing. The historically impacted soil will be removed and disposed of and confirmation soil samples will be collected in compliance with ECMC Table 915-1. The topographic Site Location Map showing the geographic setting of the release is provided as Figure 1. The wellhead excavation is depicted on Figure 2. The background soil sample locations are illustrated on Figures 2 and 3. The PID readings and soil sample results are summarized in Tables 1 and 2, respectively. | | |
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| Resolution: | | Resolving Document: 404513968 | Closure Requested: 01/23/2026 | | Resolution: Work Procedeing under Form 27 |
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| Operator Information: | | Operator: | KERR MCGEE OIL & GAS ONSHORE LP | | Oper. No. | 47120 | | Address: | P O BOX 173779 DENVER CO 80217-3779 | | Type of Facility: | SPILL OR RELEASE | | Fac. Name: | Briggs 1-11 Wellhead - | | County Name: | WELD | | qtrqtr: NENE | section: 1 | township: 3N | range: 67W | meridian: 6 |
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