<_x0034_01004639>

401004639 19 2016-03-14T08:08:48.047-06:00 100185 ENCANA OIL & GAS (USA) INC

370 17TH ST STE 1700

DENVER CO 80202-5632 Matt Kasten 970 2852925 Matt Kasten Env. Consultant 2016-03-14T08:08:48.047-06:00 2016-03-14T08:08:48.017-06:00 445121 in process kastenm 2016-03-14T07:55:07.313-06:00 kastenm matt.kasten@encana.com 0.00000 matt.kasten@encana.com kastenm kastenm 2016-03-14T08:08:44.233-06:00 401003409 401004639 LUJAN, CARLOS 2016-03-10T00:00:00-07:00 TANK BATTERY MESA NENW 17 8S 96W 6 N NON-CROP LAND clear 0 0 The Operator identified through automations an upset conditions. When arriving on site the operator identified the tanks overflowing into secondary containment. No fluid spilled outside of the secondary containment. It was determined the the high level alarm and Emergency shutdown device had failed. the operators shut in the tank recovered fluid from the secondary containment. 334068 401003409 true 2016-03-10T00:00:00-07:00 39.355978 -108.135538 FEDERAL Colorado River Field Office 0 0 0 true <_x0032_7_approved>false S false 0 0 >=100 0 0 true false false true false 0 2016-03-10T15:01:46.797-07:00 tanks overflowed at injection facility spilling into lined secondary containment 401004639 ATTN: Carlos Lujan C17OU Spill Spill# 445121 401004639 401004639 FORM 19 SUBMITTED 401004639.pdf 401004639 1 SPILL 2016-03-10T00:00:00-07:00 BLM Christina O’Connell

sent to email

401004639 2 SPILL 2016-03-10T00:00:00-07:00 Mesa County

sent to email

401004639 1 2016-03-14T00:00:00-06:00 1 0 false false false false false false 2 false Spill never left lined secondary containment. (Pre-measured from SPCC diagrams) Clapper very stony loam, 25 to 65 percent slopes 60 0 1 Free fluid did not leave secondary containment. ESD was repaired and fixed the next day. The containment was pressure washed to remove the residual stainings. 0 0 0 0 500 500 0 0 0 0 false false 0 0 false false false false false false true false true true true true 92 52 0 Thread was being aborted.