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400952525 19 2015-12-11T13:44:48.22-07:00 10439 CARRIZO NIOBRARA LLC

500 DALLAS STREET #2300

HOUSTON TX 77002 eric johansson 713 358-6227 281 770-2735 eric johansson EHS Supervisor 2015-12-11T13:44:48.22-07:00 2015-12-11T13:44:48.187-07:00 444157 in process ericjohansson 2015-12-11T12:03:29.657-07:00 ericjohansson eric.johansson@crzo.net 0.00000 eric.johansson@crzo.net ericjohansson ericjohansson 2015-12-11T13:44:46.47-07:00 400943955 400952525 ALLISON, RICK 2015-11-27T00:00:00-07:00 TANK BATTERY 05 123 37073 WELD nwnw 36 9n 59w 6 Y OTHER overcast, snow on the ground ~20F 0 0 ARRIVING ON LOCATION JUST BEFORE DARL ON 11/27/15 CARRIZO PERSONNEL ARRIVED ON LOCATION TO FIND AN UPSET THROUGH FLARE STACK RESULTING IN APPROXIMATELY 20 BBLS OF OIL SPILLED ON THE GROUND. ALL LIQUIDS WERE CONAINED ON PAD, NOTHING GOT OFF LOCATION. WELLS WERE SHUT IN IMMEDIATELY AND SECURED FOR THE NIGHT. CREWS WERE MOBILIZED ON 11/28/15 TO BEGIN CLEAN UP. CREWS ARE STILL ON LOCATION CLEANING AND EXCAVATING IMPACTED SOILS AS OF 11/29/15. IMPACTED SOIL WILL BE HAULED OFF AND DISPOSED OF AT PROPER FACILITY. 400943955 true 2015-11-27T00:00:00-07:00 40.712712 -103.930850 FEE 0 0 0 false <_x0032_7_approved>false S false well pad >=5 and <100 0 0 0 0 true false true false false 0 2015-11-29T13:48:40.89-07:00 400952525 Attachment 1512012 - results after round 1 of excavation Attachment 1512079 - results after round 2 of excavation Attachment 1512086 - results after round 3 of excavation 400952525 400952525 FORM 19 SUBMITTED 400952525.pdf 400952525 400952577 DISPOSAL MANIFEST COG - Castor 3-36-11-9-59 - Disposal Tix's.pdf 862172 400952525 400952584 ANALYTICAL RESULTS 1512012 - Castor 3-36.pdf 479998 400952525 400952586 ANALYTICAL RESULTS 1512079 - Castor 3-36-11-9-59.pdf 305010 400952525 400952587 ANALYTICAL RESULTS 1512086 - Caster 3-36-11-9-59.pdf 273400 400952525 400952589 SITE MAP 042915003_FIG02_SITE.pdf 911555 400952525 1 SPILL 2015-11-28T00:00:00-07:00 COGCC 24 HOUR NUMBER

LEFT VOICE MESSAGE DETAILING INCIDENT

877 518-5608 400952525 1 2015-12-11T00:00:00-07:00 1 0 true false false false false false 0 false Excavation of the impacted area was done to get to clean soil. Some areas were less than 10 inches but the deepest impacted area was excavated to approximately 10 inches. Pasture land surrounding the pad site used for roaming livestock grazing. Initial excavation was conducted and soil samples taken in 10 different spots in the spill area. Map attached show the spill area and sample points identified. Lab results are also attached to show the results. Three seperate rounds of excavation and soil sampling were conducted until the area was proven to be below Table 910-1 guidelines. Please feel free to call if needed to discuss. Manifests of the hauled soils are also attached. 15 1 1700 500 All soils excavated on the well pad site were hauled off to Waste Management Ault, CO landfill. 20 0 0 0 0 0 0 0 0 0 false false 0 0 false false false false false false false true true false true true 250 100 10 400952525 1 2015-12-11T00:00:00-07:00 false true false false Installing High Pressure sensor devices to prevent over pressuring of vessels. Carrizo will be installing in the near future High Pressure sensors to prevent over pressuring of vessels. Also will be installing float devices inside vessels to prevent over pressuring and prevent high volumes of liquid from ammasing inside the equipment. 200 true false false 0 0 Thread was being aborted.