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400308031 15 10338 CARRIZO OIL & GAS INC

500 DALLAS STREET #2300

HOUSTON TX 77002 Tina Taylor 713 328-1000 713 -328-1060 Tina Taylor Regulatory Compliance 2012-07-23T08:20:43.207-06:00 DRAFT ttaylor 2012-07-23T08:20:43.207-06:00 ttaylor tina.taylor@crzo.net 0.00000 tina.taylor@crzo.net ttaylor ttaylor 2012-07-23T09:24:38.427-06:00 400308031 P Hemberger WELD NWNE 26 8N 60W 6 40.626790 -104.055010 Lined 0 N 5280 63 4950 240 210 12 96786 PPL 20 20 Y 26-34-8-60 N 05 00 425541 � � � � � � � � � � � � Y Planned 2012-07-25T00:00:00-06:00 N � � � Y � Y � � Fresh Water Storage Pit Only 0 400308031 400308097 OTHER Hemberger 26-34-8-60 2A Approved.pdf 129259 400308031 400308099 DESIGN: PLAN AND CROSS SECTION Hemberger 26-34-8-60 Constr Layout Drawing.pdf 394316 400308031 400308100 DESIGN: PLAN AND CROSS SECTION Hemberger 26-34-8-60 Loc Drawing.pdf 286531 400308031 400308101 TOPOGRAPHIC MAP Hemberger 26-34-8-60 Hydro Map.pdf 387623 400308031 400308102 OPERATIONS PLAN Hemberger 26-34-8-60 Multi-Well Plan.pdf 58426 400308031 400286186 02A 7e5a5d39-145a-4613-b5ca-241fe1b4a67c 400308031 7 Planning The COGCC to be notified 48 hours prior to construction of the Fresh Water Storage Pit. 71a445d2-8e60-4abc-b41a-3e10196693b4 400308031 8 Drilling/Completion Operations A Form 15 Pit Report will be submitted within 30 days of construction of the fresh water storage pit. 96529d67-bd72-4640-9076-9bf774726ace 400308031 5 Site Specific Fresh Water Storage Pit shall contain fresh water only and signage prohibiting the use of the pit for any fluid that does not come from municipal, irrigation or surface water source. 173aa9a0-ccbe-427c-be9a-eacc17ad3938 400308031 6 Site Specific The location will be fenced and the fenced area will include the Fresh Water Storage Pit. 124caed6-84b0-4be3-8b06-ecf4f18fded6 400308031 3 Site Specific Fresh water for the Fresh Water Storage Pit comes from water provider; water sources permitted for consumable industrial use. bb431e22-0810-499a-8de2-fcff07a7b4df 400308031 1 Material Handling and Spill Prevention Operator will ensure 110 percent secondary containment for any volume of fluids contained at the well site during drilling and completion. Operator will implement best management practices to contain any unintentional release of fluids. b8b742e4-8a34-4ce4-9605-d7cf63af8377 400308031 2 Storm Water/Erosion Control Operator has designed the well pad with insloping and a storm water control ditch to prevent storm water run-on/runoff and the release of fluids from the location. See attached Construction Layout Drawing. 4e3a2ca4-8105-4b45-842b-5147f97ce054 400308031 4 Site Specific Operator shall not allow any fluids to flow back to the Fresh Water Storage Pit/Pond. Thread was being aborted.