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401053582 19 2016-05-25T11:12:24.937-06:00 27742 EOG RESOURCES INC

600 17TH ST STE 1100N

DENVER CO 80202 Steve Bugni 307 2357124 307 2516728 Steve Bugni Environmental Tech 2016-05-25T11:12:24.937-06:00 2016-05-25T11:12:24.923-06:00 444492 in process steve_bugni 2016-05-25T10:33:48.203-06:00 steve_bugni steve_bugni@eogresources.com 0.00000 steve_bugni@eogresources.com steve_bugni steve_bugni 2016-05-25T11:12:23.063-06:00 400962788 401053582 ALLISON, RICK 2015-12-31T00:00:00-07:00 TANK BATTERY WELD NW/NE 6 11N 62W 6 Y NON-CROP LAND 20 degrees F, no precipitation 0 0 On the morning of 12/31/2015 a leak was discovered on a produced water line at the Simba 1-06 SWD. The leak was caused by a dial gauge that had frozen, rupturing the Bourden tube. Approximately 96 bbls of produced water were spilled on location, outside of secondary containment. Approximately 3 bbls of produced water ran off of EOG's location in a narrow trickle down a shallow draw approximately 25 yards to the northwest of the edge of the location. The ground off location was frozen and covered with snow, and the produced water ran under the snow. The spill does not threaten any surface water. The broken gauge was replaced with a plug to prevent further leaks. Initial notification to Weld County and the surface owner will be attempted to be made on the morning of 1/1/2016, in accordance with COGCC Rule 906.b.(2) and Rule 906.b.(3), respectively. 415149 400962788 true 2015-12-31T00:00:00-07:00 40.955719 -104.362640 N/A FEE 0 0 0 true <_x0032_7_approved>false S false 0 0 >=5 and <100 0 0 true false false true false 0 2016-01-01T08:38:12.61-07:00 401053582 Initial soil samples were collected on 1/4/2016. Sample A was located on the pad, and Sample B was located off the pad (same location as sample Simba_1 on the attached aerial photograph). Due to elevated conductivity (EC) and sodium adsorption ratios (SAR) in Sample B, additional samples were collected on 5/10/2016 to determine the extents of the contaminated area. However, all three samples collected on 5/10/2016 were below Table 910 levels for EC and SAR. The affected area likely naturally attenuated due to winter and spring precipitation. Based on the results of the samples collected on 5/10/2016, EOG Resources, Inc. is requesting closure of the incident. 401053582 401053582 FORM 19 SUBMITTED 401053582.pdf 401053582 401053594 ANALYTICAL RESULTS C16010235.pdf 740906 401053582 401053595 ANALYTICAL RESULTS 1605197_SUMMARY.pdf 756379 401053582 401053620 SITE MAP Simba 1-06 SWD.pdf 29647 401053582 401053628 AERIAL PHOTOGRAPH Simba Soil Samples1 (00000002).pdf 15100039 Thread was being aborted.