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400905161 19 2015-09-25T07:42:13.877-06:00 69175 PDC ENERGY INC

1775 SHERMAN STREET - STE 3000

DENVER CO 80203 Zack Liesenfeld 970 506-9273 970 373-6581 Zack Liesenfeld EHS Professional 2015-09-25T07:42:13.877-06:00 2015-09-25T07:42:13.86-06:00 443225 in process Cwasko 2015-09-24T15:01:32.39-06:00 Cwasko zack.liesenfeld@pdce.com 0.00000 zack.liesenfeld@pdce.com Zliesenfeld Zliesenfeld 2015-09-25T07:42:12.047-06:00 400901373 400905161 ALLISON, RICK 2015-09-16T00:00:00-06:00 TANK BATTERY WELD SWSW 8 5N 63W 6 Y NON-CROP LAND Sunny and 85 0 0 During P&A of the State 14, 24-8 location a historic release was discovered under the produced water vault. Exploration and remediation efforts found the release to be state reportable. Current action is being taken to determine the extent of the release, once found, an appropriate remediation plan will be executed. 331043 400901373 false 2015-09-16T00:00:00-06:00 40.408290 -104.464200 STATE Colorado State of 0 0 0 false <_x0032_7_approved>true S false 0 0 Unknown 0 0 true false false true false 0 2015-09-17T13:37:37.077-06:00 400905161 400905241 TOPOGRAPHIC MAP State 14, 24-8 Figure 1.pdf 3430517 400905161 400905297 OTHER State 14 24-8 Supplemental Form 19 _ Signed 092515.pdf 2859979 400905161 1 SPILL 2015-09-17T00:00:00-06:00 State of CO Rick Allison

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400905161 2 SPILL 2015-09-17T00:00:00-06:00 Weld County Roy Rudesil

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400905161 3 SPILL 2015-09-17T00:00:00-06:00 State of CO Steve Freese

Via email

400905161 1 2015-09-25T00:00:00-06:00 0 0 true false false false false false 22 false On September 16, 2015, a historic release was discovered below the produced water tank during facility decommissioning activities at the State 14, 24-8 tank battery. To date, approximately 80 cubic yards of impacted material have been removed and transported to the Waste Management Facility in Ault, Colorado for disposal under PDC waste manifests. Excavation and site investigation activities to delineate the lateral and vertical extent of remaining petroleum hydrocarbon impacts in soil are on-going. Groundwater has not been encountered. A summary of remediation activities and analytical results will be provided in a subsequent report. Valent sand, 3 to 9 percent slopes 80 0 25 0 0 0 0 0 0 0 0 false false 0 0 false false true false false false true true true false true true 130 70 400905161 1 2015-09-25T00:00:00-06:00 false false true false A historic release was discovered during production facility decommissioning activities. The well will be plugged and the facility will not be reconstructed. 80 true false false 0 0 Thread was being aborted.