<_x0034_00960854>

400960854 19 2015-12-29T09:46:10.843-07:00 8960 BONANZA CREEK ENERGY OPERATING COMPANY LLC

410 17TH STREET SUITE #1400

DENVER CO 80202 Brian Dodek 720 225-6653 Brian Dodek Sr Env Specialist 2015-12-29T09:46:10.843-07:00 2015-12-29T09:46:10.827-07:00 444394 in process bdodek 2015-12-29T08:58:09.157-07:00 bdodek bdodek@gmail.com 0.00000 bdodek@gmail.com bdodek bdodek 2015-12-29T09:46:08.937-07:00 400956691 400960854 CHESSON, BOB 2015-12-17T00:00:00-07:00 TANK BATTERY WELD NWNE 4 4N 62W 6 Y NON-CROP LAND 7 degrees, windy, mostly cloudy 0 0 During production a separator rupture disc failed releasing approximately 4.5 bbls of oil inside containment and an oil spray calculated to be approximately 2.6 bbls outside containment. Crews were immediately dispatched to begin removal of the pooled oil in containment and the oil spray that was confined to the surface of the snow at the location. Once the cleanup activities are complete, environmental personnel will collect soil samples to confirm the remaining surface soil is compliant with COGCC Table 910-1 standards. 433884 400956691 true 2015-12-17T00:00:00-07:00 40.348697 -104.326696 STATE 0 0 0 false <_x0032_7_approved>false S false >=5 and <100 0 0 0 0 true false false true false 0 2015-12-17T23:52:24.28-07:00 400960854 400960854 FORM 19 SUBMITTED 400960854.pdf 400960854 400960898 SITE MAP Figure 2.pdf 369923 400960854 1 SPILL 2015-12-18T00:00:00-07:00 State Land Board Matt Pollart

Notified of release

on file 400960854 2 SPILL 2015-12-18T00:00:00-07:00 Weld County Roy Rudisil

Notified of release

on file 400960854 3 SPILL 2015-12-18T00:00:00-07:00 COGCC Bob Chesson

Notified of release via eForm 19

on file 400960854 1 2015-12-28T00:00:00-07:00 0 0 false false false false false false false The release extent was determined by visual delineation. The release occurred over thick snow cover and was easily defined. Valent Sand, 3 to 9 percent slopes 20 1 2702 2971 Due to recent storm activity and low temperatures, the snow cover at the location has postponed sampling activities. BCEOC has removed the impacted snow and is in the process of impacted gravel ballast removal in the separator containment. Once the snow melts and the surface soil is visible, BCEOC will confirm all impacted material has been removed. BCEOC personnel will then collect samples from the wellpad surface to confirm the soil is compliant with COGCC Table 910-1 standards. 7 0 0 0 0 0 0 0 0 0 false false 0 0 false false false false false false false false true true true true 250 145 0 Thread was being aborted.