<_x0034_00924402>

400924402 19 2015-10-29T16:28:07.733-06:00 47120 KERR MCGEE OIL & GAS ONSHORE LP

P O BOX 173779

DENVER CO 80217-3779 Sam LaRue 970 515.1238 Sam LaRue Senior HSE Representative 2015-10-29T16:28:07.733-06:00 2015-10-29T16:28:07.72-06:00 443523 in process bkieding 2015-10-26T08:17:56.173-06:00 bkieding Sam.LaRue@anadarko.com 0.00000 Sam.LaRue@anadarko.com bkieding bkieding 2015-10-29T16:28:06.313-06:00 400913284 400924402 GINTAUTAS, PETER 2015-10-07T00:00:00-06:00 PIPELINE WELD NWNE 5 2N 66W 6 Y NON-CROP LAND Partly cloudy, 65 degrees F 0 0 While performing construction activities, historical petroleum hydrocarbon impacts were encountered. The volume of the release is unknown. The impacts were determined to be reportable based on the volume of hydrocarbon impacted soils removed from the location. The impacted soils were removed from the site and hauled to the licensed Kerr-McGee Land Treatment Facility for processing. A topographic Site Location Map showing the general location of the release is attached as Figure 1. 328886 400913284 false 2015-10-07T00:00:00-06:00 40.173799 -104.797669 FEE 0 0 0 true <_x0032_7_approved>false S false >=5 and <100 0 0 0 0 false false false true false 0 2015-10-07T14:51:14.233-06:00 400924402 400924402 FORM 19 SUBMITTED 400924402.pdf 400924402 400924572 TOPOGRAPHIC MAP Bluffs_White_W62N66W_5NWNE_Fig1_area_20151007.pdf 556835 400924402 400924820 SITE MAP Bluffs_White_W62N66W_5NWNE_Fig2_dig_20151023.pdf 274281 400924402 400924822 ANALYTICAL RESULTS Table 1.pdf 18391 400924402 400924828 ANALYTICAL RESULTS Combined Laboratory Reports.pdf 4894355 400924402 1 SPILL 2015-10-07T00:00:00-06:00 Weld County Roy Rudisill

email 400924402 2 SPILL 2015-10-07T00:00:00-06:00 Weld County Troy Swain

email 400924402 3 SPILL 2015-10-07T00:00:00-06:00 Weld County Tom Parko

email 400924402 4 SPILL 2015-10-07T00:00:00-06:00 landowner landowner

mail 400924402 1 2015-10-26T00:00:00-06:00 0 0 true false false false false false 21 false Between September 30, 2015 and October 14, 2015, soil samples (SS) SS1 through SS25 were collected from the sidewalls, and base of the excavation at the Bluffs White W-62N66W/5NWNE production facility (note that in the Initial Spill/Release Report tab, "pipeline" was inaccurately referenced for the facility type). Soil samples were submitted to Origins Laboratory in Denver, Colorado for analysis of benzene, toluene, ethylbenzene, total xylenes (BTEX), total petroleum hydrocarbons (TPH) – gasoline range organics (GRO) by USEPA Method 8260C, TPH – diesel and oil range organics (DRO and ORO) by USEPA 8015, electrical conductivity (EC), and pH. Laboratory analytical results indicated that TPH, BTEX, and EC levels were less than or within COGCC Table 910-1 allowable levels at the excavation extent. Six (6) soil samples exceeded COGCC Table 910-1 allowable levels for pH, but were below the designated root zone of three feet. Approximately 1,200 cubic yards of impacted material was excavated and transported to the Kerr-McGee Land Treatment Facility in Weld County, Colorado for disposal. The general site layout, excavation dimensions, and soil sample locations are shown on the Excavation Site Map provided as Figure 2. A summary of the laboratory analytical results is included as Table 1 and laboratory analytical reports are attached. Site geology includes sandy clay. 262 4 1800 1270 315 1300 550 During the excavation activities, a dumpline with a suspected release was removed. Laboratory analytical results from the soil samples collected from the base and excavation extents, indicate that TPH, BTEX, pH, and EC concentrations were within the COGCC Table 910-1 allowable levels. Based on the confirmation soil sample analytical results, Kerr-McGee is requesting a No Futher Action (NFA) status for this release. 0 0 0 0 0 0 false false 0 0 true false true false false false false false false false false true 107 73 Historical release 252 400924402 1 2015-10-26T00:00:00-06:00 false true false false Hydrocarbon impacts were encountered during construction activities associated with the removal/decommissioning of a produced water sump at the facility. A dumpline with a suspected leak, encountered during excavation activities, was removed. At this facility, the dumpline and associated adjoining equipment, were removed/decommissioned. 222 true false false Thread was being aborted.