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COGIS - SPILL OR RELEASE INFORMATION

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Walsh Gas Unit 6-24 Wellhead - #492486 InformationStatus: CL - 3/3/2026
Spill Type: ReleaseFacility Name/No.:Walsh Gas Unit 6-24 Wellhead /
Facility Type:SPILL OR RELEASEFacility Status:CL
Date of Discovery:12/2/2025Date Closed:3/3/2026
Operator:KERR MCGEE OIL & GAS ONSHORE LP Operator Number:47120
Municipality/County:FREDERICK / WELD  - #123Location:NWSE 24 2N68W
Doc Number:404458173Lat/Long:40.121404 / -104.949951  Source: ACTUAL based On LatLong
Municipality
(if within municipal boundaries):
Frederick
Waters of the State: Impacted Media:
Related Remediation Project Number
if work proceeding under an approved Form 27:
37419
 
Spill Description:
While conducting wellhead plugging and abandonment activities at the Walsh Gas Unit 6-24 Wellhead, historically impacted soil was discovered at the wellhead. 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 assessment details will be summarized in a supplemental Form 27 report (Remediation No. 37419; Form 27 Initial Document No. 403938358). The topographic Site Location Map showing the geographic setting of the release is provided as Figure 1.
 
Resolution:
Resolving Document:  404458173Closure Requested:  12/04/2025
Resolution:  --
 
Resolution Project:
Date Approved:  10/1/2024Well Name/No.:  WALSH GAS UNIT
Date Recv'd:  10/1/2024API number:  05-123-14598
Rem DocNum:  403938358Remediation Project #:  37419
Document Type:  FORM 27 qtrqtr: NWSE   section: 24  township: 2N   range: 68W   meridian: 6
 
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:Walsh Gas Unit 6-24 Wellhead -
County Name:WELD
qtrqtr: NWSEsection: 24township: 2Nrange: 68Wmeridian: 6