KERR-MCGEE OIL & GAS BENZENE SPILL CONTAMINATES GROUNDWATER 17 UG/L

THE BATTERY WAS SHUT IN. THE PETROLEUM HYDROCARBON IMPACTED SOIL IS BEING EXCAVATED. GROUNDWATER WAS ENCOUNTERED IN THE EXCAVATION AT ~4` BGS. LAB ANALYTICAL RESULTS CONFIRMED BENZENE IMPACTS TO GROUNDWATER ABOVE THE CGWQS AT A CONCENTRATION OF 17 UG/L.

OFFICIAL COGCC DOCX LINK


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Date Rec'd:	11/20/2012	Report taken by:	BOB CHESSON
DocNum:	2231131	API number:	05-123 -18271	Facility ID:	250468

Operator Information

Operator:	KERR-MCGEE OIL & GAS ONSHORE LP	Oper. No.	47120
Address:	P O BOX 173779 ATTN: ASHLEY COCCIOLONE  DENVER , CO 80217-3779
Phone:	(720 )929-6000	Fax:	(720 )929-7461
Operator Contact:	PAUL  SCHNEIDER

Description of Spill:

Date of Incident:	11/13/2012
Type of Facility:	WELL
Well Name/No.	HSR-BARCLAY  2-28	Fac. Name/No.
County Name:	WELD
qtrqtr: NWNE section: 28 township: 3N range: 66W meridian: 6

Volumes spilled and recovered (bbls)
Oil spilled:	Recvrd:
Water spilled:	Recvrd:
Other spilled:   0	Recved:  0
GW Impact? Y Surface water impact? N Contained within berm? N
Area and vertical extent of spill:  - X   -
Current land use:  AGRICULTURE
Weather conditions:  60 DEG F, CLEAR
Soil/Geology description  UNKNOWN
Distance in feet to nearest surface water:  535
Depth to shallowest GW:  4
Wetlands:  2700	Buildings:  1900
Livestock:	Water Wells:  320
Cause of spill:
HISTORICAL IMPACTS
Immediate Response:
THE BATTERY WAS SHUT IN. THE PETROLEUM HYDROCARBON IMPACTED SOIL IS BEING EXCAVATED. GROUNDWATER WAS ENCOUNTERED IN THE EXCAVATION AT ~4` BGS. LAB ANALYTICAL RESULTS CONFIRMED BENZENE IMPACTS TO GROUNDWATER ABOVE THE CGWQS AT A CONCENTRATION OF 17 UG/L.
Emergency Pits:
NA
How extent determined:
SOIL AND GROUNDWATER SAMPLES WILL BE COLLECTED FROM THE EXCAVATION. THE ANALYTICAL RESULTS AND EXCAVATION DETAILS WILL BE PROVIDED ON A FORM 27.
Further Remediation
WILL BE PROVIDED ON A FORM 27.
Prevent Problem:
A NEW TANK BATTERY WILL BE CONSTRUCTED.
Detailed Description:
FIELD CREWS DISCOVERED HISTORICAL PETROLEUM HYDROCARBON IMPACTED SOIL WHILE REMOVING THE OLD TANK BATTERY. THERE WAS NO INDICATION OF LEAKING DUMPLINES, TANKS OR FITTINGS. THE VOLUME OF THE RELEASE IS UNKNOWN.