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COGIS - SPILL OR RELEASE INFORMATION

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Antelope i-31/S-31 Flowline Hist. - #491692 InformationStatus: CL - 9/23/2025
Spill Type: ReleaseFacility Name/No.:Antelope i-31/S-31 Flowline Hist. /
Facility Type:SPILL OR RELEASEFacility Status:CL
Date of Discovery:5/25/2023Date Closed:9/23/2025
Operator:BONANZA CREEK ENERGY OPERATING COMPANY LLC Operator Number:8960
County:WELD  - #123Location:SWSE 31 5N62W
Doc Number:404364367Lat/Long:40.356862 / -104.361862  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:
26415
 
Spill Description:
During an internal review/audit of data alteration, Bonanza Creek found data anomalies and identified that a spill should have been reported for the Antelope I-31 on 05/25/2023. Bonanza is submitting this form to establish the record of the spill, is submitting accurate lab data with the Form 27, requests reopening REM Project ID 26415, and requests closure of this spill/release under the active remediation project.
 
Resolution:
Resolving Document:  404364367Closure Requested:  09/23/2025
Resolution:  Work Procedeing under Form 27
 
Resolution Project:
Date Approved:  11/9/2022Facility Name:  BCEI Flowine System
Date Recv'd:  11/9/2022Facility ID:  478703
Rem DocNum:  403147649Remediation Project #:  26415
Document Type:  FORM 27 qtrqtr: SENE   section: 26  township: 5N   range: 63W   meridian: 6
 
Operator Information:
Operator:BONANZA CREEK ENERGY OPERATING COMPANY LLC
Oper. No.8960
Address:555 17TH STREET SUITE 3700  DENVER  CO 80202
Type of Facility:SPILL OR RELEASE
Fac. Name:Antelope i-31/S-31 Flowline Hist. -
County Name:WELD
qtrqtr: SWSEsection: 31township: 5Nrange: 62Wmeridian: 6