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COGIS - SPILL OR RELEASE INFORMATION

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Alexander Federal H4-2JI - #492120 InformationStatus: CL - 10/27/2025
Spill Type: ReleaseFacility Name/No.:Alexander Federal H4-2JI /
Facility Type:SPILL OR RELEASEFacility Status:CL
Date of Discovery:10/26/2023Date Closed:10/27/2025
Operator:NOBLE ENERGY INC Operator Number:100322
County:WELD  - #123Location:NWNE 4 3N65W
Doc Number:404407807Lat/Long:40.259572 / -104.665508  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:
On 8/17/2023, Alexander Federal H4-2JI flowline decommissioning activities were completed. During the completion of the activities, no potential presence of impacted material(s) was observed/smelled. Consistent with Rule 912, samples were collected and analyzed to determine whether any constituents were present at levels in excess of Table 915-1 standards. Final laboratory analytical results received on 10/26/2023, indicate that soil sample FL01-A, discovered along the former flowline, exceeded ECMC Table 915 standards for Benzo(a)Anthracene. Groundwater was not encountered during decommissioning activities. Operator was notified of this release on 10/23/2025, and acknowledges that this notification is not being submitted within 24 hours of the receipt of the results. This location is within the Mule Deer Severe Winter Range High Priority Habitat. All data collected will be submitted with the next quarterly Supplemental Form 27 for REM 29328, due by 11/2/2025.
 
Resolution:
Resolving Document:  404407807Closure Requested:  10/27/2025
Resolution:  Work Procedeing under Form 27
 
Operator Information:
Operator:NOBLE ENERGY INC
Oper. No.100322
Address:1099 18TH STREET SUITE 1500  DENVER  CO 80202
Type of Facility:SPILL OR RELEASE
Fac. Name:Alexander Federal H4-2JI -
County Name:WELD
qtrqtr: NWNEsection: 4township: 3Nrange: 65Wmeridian: 6