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400398930 15 100185 ENCANA OIL & GAS (USA) INC

370 17TH ST STE 1700

DENVER CO 80202-5632 Heather Mitchell 720 876-3070 720 876-4070 Heather Mitchell Regulatory Analyst 2013-04-03T08:23:38.743-06:00 DRAFT mitchellh 2013-04-03T08:23:38.743-06:00 mitchellh heather.mitchell@encana.com 0.00000 heather.mitchell@encana.com mitchellh mitchellh 2013-04-09T12:51:12.2-06:00 400398930 P Hunter Mesa Lower Pond GARFIELD NESE 1 7S 93W 6 39.472219 -107.717734 Lined 15000 N 2040 60 1010 750 120 22 200000 0 0 HDPE 60 Filter at pad, DAf at facility Y Y 05 00 149011 � � � � � � � � � � � � Y Planned 2014-07-01T00:00:00-06:00 Y � Encana does not intend to build this pad in 2013. However, it is in the future plans of this facility, prior to any construction, PE Stamped drawings will be submitted to the COGCC Y � Y � � � � Pit will be covered HDPE 60 400394003 40000 400398930 This pit is not in the 2013 plans, however, it is planned in the future. 400398930 400398930 PIT PERMIT SUBMITTED 400398930.pdf 400398930 400399005 DETAILED SITE PLAN Lower pond site plan-COGCC.pdf 51330 400398930 400399007 TOPOGRAPHIC MAP Hunter Mesa WTF Hydrology.pdf 730987 400398930 400399011 DETAILED SITE PLAN 2-Hunter Mesa Ponds - Grading Plan.pdf 2791779 400398930 400399017 DESIGN: PLAN AND CROSS SECTION 3-Hunter Mesa Ponds - Pad Cross Sections.pdf 990192 400398930 400399027 OTHER Lower Pond Stage Storage Data.pdf 238085 400398930 400399032 SOURCE OF PRODUCED WATER FOR DISPOSAL 11 Hunter Mesa Source and Injection wells.pdf 75741 400398930 400399228 WATER ANALYSIS Hunter Mesa Water Quality Testing 9.14.12.pdf 15344 400398930 400394003 02A f33a4d0d-df0f-4d55-a910-5d7ab271a891 400398930 5 Wildlife Wildlife BMPs Minimize the number, length and footprint of oil & gas development roads Use existing routes where possible Combine utility infrastructure planning (gas, electric & water) when possible with roadway planning to avoid separate utility corridors Coordinate Employee transport when possible Reduce visits to well-sites through remote monitoring (i.e. SCADA) and the use of multi-function contractors. Maximize use of state-of-the-art drilling technology (e.g., high efficiency rigs, coiled-tubing unit rigs, closed-loop or pitless drilling, etc.) to minimize disturbance. Reclaim mule deer and elk habitats with native shrubs, grasses, and forbs appropriate to the ecological site disturbed. Pits will be covered 4b3cae2e-0d99-4124-9993-e94d7cfa3339 400398930 5 Construction PRECONSTRUCTION Wattles, Silt Fence, Vegetation Buffers, Slash, Topsoil Windrows (diversions & ROP's), Scheduling, Phased Construction CONSTRUCTION/RECLAMATION (Not all are used all the time) Terminal Containment, Diversions, Run-On Protection, Tracking, Benching, Terracing, ECM (Erosion Control Mulch), ECB (Erosion Control Blanket), Check Dams, Seeding, Mulching, Water Bars, Stabilized Unpaved Surfaces (Gravel), Stormwater & Snow Storage Containment, Scheduling, Phased Construction, Temporary Flumes, Culverts with inlet & outlet protection, Rip Rap, TRM (Turf Reinforcement Mats), Maintenance, Scheduling, Phased Construction, Fueling BMP's, Waste Management BMP's, Materials Handling BMP's POST CONSTRUCTION/RECLAMATION Maintenance Revegetation Monitoring BMP maintenance & monitoring Weed Management Thread was being aborted.