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400891802 19 2015-08-28T10:37:12.36-06:00 66561 B OXY USA INC

760 HORIZON DR #101

GRAND JUNCTION CO 81506 Blair Rollins 970 263-3637 970 640-6919 Blair Rollins HES Specialist 2015-08-28T10:37:12.36-06:00 2015-08-28T10:37:12.343-06:00 442971 in process brollins 2015-08-28T09:32:08.327-06:00 brollins blair_rollins@oxy.com 0.00000 blair_rollins@oxy.com brollins brollins 2015-08-28T10:37:09.97-06:00 400887236 400891802 LUJAN, CARLOS 2015-08-19T00:00:00-06:00 WELL PAD MESA SENE 7 10S 94W 6 Y NON-CROP LAND Sunny 0 1 At approximately 1:00PM on Wednesday (August 19, 2015) an Oxy contract hydrovac operator spilled approximately 10 barrels of produced water and tank bottom sludge outside of secondary containment during hydrovac unloading operations. During unloading activities, the back gate of the hydrovac truck lost hydraulic pressure and unexpectedly opened. The spilled material flushed out of the hydrovac truck, exited the lined secondary containment, and flowed down the fill slope off the pad and into a small stormwater diversion ditch and stormwater sediment pond. Oxy personnel and contractors immediately contained the running water within the ditch downgradient of the impacted area and began removing the liquid. Another onsite contractor immediately diverted the flowing water upgradient of the impacted area to aid in isolating and capturing all impacted soil and surface water. Impacted soil and water was removed and reintroduced into the secondary containment for disposal. 334514 400887236 true 2015-08-19T00:00:00-06:00 39.206106 -107.917612 FEE OXY USA Inc. 1 0 0 false <_x0032_7_approved>false S false 0 0 0 0 0 true false false true false >=5 and <100 2015-08-20T07:55:28.28-06:00 Produced water and tank bottom sludge 400891802 400891802 FORM 19 SUBMITTED 400891802.pdf 400891802 400891852 AERIAL PHOTOGRAPH MWR 7-8 spill aerial_small.pdf 315355 400891802 400891853 TOPOGRAPHIC MAP MWR 7-8 spill topo.pdf 501375 400891802 1 SPILL 2015-08-20T00:00:00-06:00 COGCC Carlos Lujan

No response yet

970 625-2497 400891802 2 SPILL 2015-08-20T00:00:00-06:00 Mesa County Andrew Martsoff

No response yet

970 244-1763 400891802 1 2015-08-28T00:00:00-06:00 0 0 true false true false false false 0 false Extent of contamination was determined visually and screened by using a PID. Surface water was contained downgradient of the impacted area and removed for offsite disposal. Confirmation soil sampling has been coordinated with a third party contractor but will not be completed until 8/31/2015. Oxy will provide the results of the confirmation sampling and summary of activities report in a supplemental Form 19 for COGCC review and approval. Cerro silty clay loam, 2 - 6 percent slopes 40 1 2662 50 3034 150 2155 0 0 0 0 0 0 0 0 0 0 false false 10 10 false false false false false false false false false false false true 30 20 Produced water and tank bottom sludge 2 400891802 1 2015-08-28T00:00:00-06:00 true true false false The point of failure was the airplane wing located on the left side of the rear hatch door. The airplane wings (door lock system) would not move, allowing the door hinge system to malfunction and lose hydraulic control of the rear door. The door unexpected opened completely and released the contents of the hydrovac truck all at once. The equipment was taken out of service to ensure all mechanical issues were fixed with the door hinge system. During unloading activities, all malfunctioning airplane wings will be monitored to ensure proper unloading activities are completed. 2 true false false 0 5 Thread was being aborted.