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400630825 19 2014-06-21T18:51:17.563-06:00 47120 KERR MCGEE OIL & GAS ONSHORE LP

P O BOX 173779

DENVER CO 80217-3779 Phil Hamlin 970 336-3500 970 336-3656 Phil Hamlin Senior HSE Representative 2014-06-21T18:51:17.563-06:00 2014-06-21T18:51:17.517-06:00 in process JBARKER 2014-06-20T15:10:07.877-06:00 JBARKER phil.hamlin@anadarko.com 0.00000 phil.hamlin@anadarko.com PHAMLIN PHAMLIN 2014-06-21T18:51:14.827-06:00 400624490 400630825 2014-06-11T00:00:00-06:00 TANK BATTERY WELD SWSW 36 3N 67W 6 Y OTHER Sunny, 80 0 0 A release was discovered during construction and tank anchoring at the Wirkner-Vance 3C-36HZ production facility. Of the approximately 3 barrels of crude oil released into secondary containment, approximately 2.75 bbls were recovered using a vacuum truck and then transfered to a licensed injection facility for disposal. Although a liner was present on location, it was temporarily breached to allow for anchor installation. Groundwater was encountered beneath the liner in a temporary anchor pothole at approximately 6 feet below ground surface (bgs). A groundwater sample (GW01) was collected and submitted for laboratory analysis of benzene, toluene, ethylbenzene, and total xylenes (BTEX). Laboratory analytical results received on June 11, 2014 indicate benzene, toluene, and total xylenes concentrations are in exceedance of applicable COGCC Table 910-1 regulatory standards, causing this release to be reportable. A topographic site map is included as Figure 1. 331676 400624490 true 2014-06-11T00:00:00-06:00 40.175510 -104.846640 FEE 1 0 0 false <_x0032_7_approved>false S false Wetlands >=1 and <5 0 0 0 0 false false false true false 0 2014-06-11T09:09:50.673-06:00 400630825 400630825 FORM 19 SUBMITTED 400630825.pdf 400630825 400630845 TOPOGRAPHIC MAP Wirkner-Vance 3C-36HZ Figure 1_Topographic Site Map.pdf 2149259 400630825 400630847 SITE MAP Wirkner Vance 3C-26HZ_Figure 2 - Sample Location Map.pdf 229146 400630825 400630848 ANALYTICAL RESULTS Wirkner Vance 3C-36HZ_Analytical Table and Laboratory Report.pdf 181998 400630825 1 SPILL 2014-06-19T00:00:00-06:00 Weld County Roy Rudisill

Email 400630825 2 SPILL 2014-06-11T00:00:00-06:00 Weld County Tom Parko

Email 400630825 1 2014-06-20T00:00:00-06:00 0 0 false true false false false false 6 false Of the approximately 3 barrels of crude oil released into secondary containment, approximately 2.75 bbls were recovered using a vacuum truck. Remaining material contacted groundwater through a six inch wide temporary breach in the liner which was created for tank anchor installation in one of the four anchor locations. Groundwater was encountered beneath the liner in the temporary anchor pothole at approximately 6 feet below ground surface and a groundwater sample was collected. Approximate extent was determined through the location of the temporary anchor potholes within the lined tank battery. Sandy loam and alluvial gravel 6 13 242 1000 150 1000 2500 3 2 0 0 0 0 0 0 0 0 false false 0 0 false false false false false false false false false false false true 15 15 0 Thread was being aborted.