<_x0034_00616494>

400616494 19 2014-05-30T15:38:06.797-06:00 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 2014-05-30T15:38:06.797-06:00 2014-05-30T15:38:06.75-06:00 437366 in process JBARKER 2014-05-29T10:12:03.627-06:00 JBARKER phil.hamlin@anadarko.com 0.00000 phil.hamlin@anadarko.com PHAMLIN PHAMLIN 2014-05-30T15:38:00.923-06:00 400614160 400616494 CANFIELD, CHRIS 2014-05-23T00:00:00-06:00 TANK BATTERY WELD SENE 8 3N 67W 6 Y CROP LAND Partly cloudy 0 0 During the rebuilding of the tank battery, historical impacts were encountered. There was no indication that the dump lines, tanks, or fittings were leaking. The produced water tank was cleaned and removed, and the associated lines were flushed and removed. Impacted soil was excavated and will be transported off-site to a licensed facility for disposal. Groundwater analytical results received May 23, 2013, indicated benzene concentrations above COGCC Table 910-1 standards, making the release reportable. Groundwater will be removed using a vacuum truck and resampled. 318973 400614160 false 2014-05-23T00:00:00-06:00 40.241235 -104.905181 FEE 1 0 0 false <_x0032_7_approved>false S false Unknown 0 Unknown 0 0 false false false true false 0 2014-05-23T12:23:40.923-06:00 400616494 400616494 FORM 19 SUBMITTED 400616494.pdf 400616494 400616577 TOPOGRAPHIC MAP Berry 1, Berry 8-8 Figure 1 - Topographic Site Location Map.pdf 2173790 400616494 400616580 SITE MAP Berry #1, Berry 8-8_Figure 2 - Sample Location Map.pdf 193446 400616494 400616589 ANALYTICAL RESULTS Berry #1, Berry 8-8_Analytical Summary Tables and Laboratory Reports.pdf 458874 400616494 1 SPILL 2014-05-23T00:00:00-06:00 Weld County Roy Rudisill

email 400616494 2 SPILL 2014-05-23T00:00:00-06:00 Weld County Tom Parko

email 400616494 1 2014-05-29T00:00:00-06:00 0 0 true true false false false false 5 false On May 22, 2014, excavation activities were conducted following the removal of the partially buried sump at the Berry #1, Berry 8-8 production facility. Approximately 20 cubic yards of impacted material were removed and transported to the Front Range Landfill in Erie, Colorado. The vertical and lateral extent of the excavation was determined in the field using a photoionization detector (PID) to measure volatile organic compound (VOC) concentrations in soil. Four soil samples were collected from the sidewalls of the final excavation extent at 4 feet below ground surface (bgs). Soil samples were submitted to eAnalytics Laboratory in Loveland, Colorado for analysis of benzene, toluene, ethylbenzene, total xylenes (BTEX) and total petroleum hydrocarbons (TPH) – gasoline range organics (GRO) by USEPA Method 8260B, and TPH – diesel range organics (DRO) and oil range organics (ORO) by USEPA Method 8015. Analytical results indicate constituent concentrations are below the applicable COGCC Table 910-1 standards at the four soil sample locations. Groundwater was encountered at approximately 5 feet bgs. On May 22, 2014, a groundwater sample (GW01) was collected and submitted for laboratory analysis of BTEX. Analytical results received on May 23, 2014 indicated benzene concentrations were in exceedance of applicable COGCC Table 910-1 groundwater standards. 40 barrels of groundwater were subsequently removed from the excavation area using a vacuum truck and disposed of at a licensed injection facility. On May 23, 2014, a second groundwater sample (GW02) was collected and submitted for BTEX analysis. Additionally, 100 pounds of activated carbon were introduced to the groundwater table to mitigate residual dissolved aqueous phase hydrocarbon concentrations above regulatory standards. Analytical results received on May 24, 2014 indicate BTEX concentrations in GW02 are below the applicable regulatory groundwater standards. Silty sand 5 1 2300 700 530 The excavation was backfilled and re-contoured to match pre-existing conditions. A Form 27 will be submitted to describe the proposed subsurface assessment to confirm the absence of residual dissolved aqueous phase hydrcarbon impacts above applicable regulatory standards. 0 0 0 0 0 0 false false 0 0 true false true false false false false false true true false true 20 15 400616494 1 2014-05-29T00:00:00-06:00 false false true false There were no leaks observed in the dump lines, produced water sump, or fittings, indicating the release was historical. The produced water sump and associated lines were replaced. 20 true false false 40 Thread was being aborted.