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COGIS - SPILL OR RELEASE INFORMATION

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Dillard AB10-02 - #487758 InformationStatus: CL - 11/12/2024
Spill Type: ReleaseFacility Name/No.:Dillard AB10-02 /
Facility Type:SPILL OR RELEASEFacility Status:CL
Date of Discovery:8/22/2024Date Closed:11/12/2024
Operator:NOBLE ENERGY INC Operator Number:100322
County:WELD  - #123Location:NWNE 10 7N64W
Doc Number:403899570Lat/Long:40.592607 / -104.532920  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:
35736
 
Spill Description:
Based on possible field indicators operator submitted excavation soil samples to the laboratory for same-day turnaround. Partial laboratory analytical data indicated a historical release occurred at the Dillard AB10-02 decommissioned wellhead. One sidewall sample and one flowline riser sample from the same wellhead excavation exceeded ECMC standards. WH01-W, and FLR01 exceeded ECMC standards for benzene at 0.0114 mg/kg, 1,2,4-trimethylbenzene at 0.0258 mg/kg, and 0.0704 mg/kg, 1,3,5-trimethylbenzene at 0.0443 mg/kg, and 0.0954 mg/kg, naphthalene at 0.124 mg/kg, and 0.468 mg/kg, TPH at 1,315 mg/kg, and 2,703 mg/kg, 1-methylnaphthalene at 0.239 mg/kg, and 0.835 mg/kg, 2-methylnaphthalene at 0.527 mg/kg, and 1.60 mg/kg. This location lies within the Pronghorn Winter Concentration high priority habitat. The supplemental Form 27 will be submitted once all lab data is received for remediation number 35736 detailing the remedial site plan, document number 403899492.
 
Resolution:
Resolving Document:  403991055Closure Requested:  11/12/2024
Resolution:  Work Procedeing under Form 27
 
Resolution Project:
Date Approved:  4/3/2024Well Name/No.:  DILLARD AB
Date Recv'd:  4/3/2024API number:  05-123-31473
Rem DocNum:  403740953Remediation Project #:  35736
Document Type:  FORM 27 qtrqtr: NWNE   section: 10  township: 7N   range: 64W   meridian: 6
 
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:Dillard AB10-02 -
County Name:WELD
qtrqtr: NWNEsection: 10township: 7Nrange: 64Wmeridian: 6