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THE INFORMATION ON THIS PAGE DOES NOT NEED TO BE HELD CONFIDENTIAL <br /> Exhibit C-AMSO,LLC Notice of Intent Supplemental Information <br /> Proposed Drill Pads <br /> Three drill pads(TP,HB,and MWP-2)will be constructed at the locations shown in <br /> Figures A.1 and A.2 (Exhibit,A)to accommodate drilling and testing operations. A third <br /> existing drill pad(MWP-1)will also be used to support testing operations;however,no <br /> additional land will be disturbed or new wells will be installed on the pad under this NOI. <br /> Drill Pad TP will be constructed immediately west of the existing BLM road in the <br /> central portion of the project site. The pad will be used to construct drill holes designed <br /> to characterize geologic and hydrogeologic conditions above,within,and below the <br /> target process testing interval. The target process testing interval corresponds to the <br /> illite-rich zone,which based on existing site information, is present in the lower Green <br /> River Formation. <br /> Drill Pad TP will be constructed as shown in Drawings D.1 and D.2(Exhibit D). The <br /> disturbed area for the Drill Pad TP wilI be approximately 4.6 acres,including a 250 feet <br /> by 425 feet pad and associated soil stock pile. All fill areas will be properly compacted <br /> to minimize the potential for'subsidence or slope failure. To reduce erosion and soil loss, <br /> ditches and berms will be constructed to divert stormwater away from the pad. Silt <br /> fencing and/or other sediment retention measures will be used to reduce sediment <br /> migration from the disturbed,area. A lockable gate per BLM specifications will be <br /> installed at the entrance to the pad to prevent unauthorized access to the pad. <br /> • Drill Pad 14B will be constructed as shown in Drawings D.3 and DA(Exhibit D). The <br /> disturbed area for the Drill Pad TP will be approximately 3.4 acres, including a 195 feet <br /> by 385 feet pad and associated soil stockpile. All fill areas will be properly compacted to <br /> minimize the potential for subsidence or slope failure. To reduce erosion and soil loss, <br /> ditches and berms will be constructed to divert stormwater away from the pad. Silt <br /> fencing and/or other sediment retention measures will be used to reduce sediment <br /> migration from the disturbed area. A lockable gate per BLM specifications will be <br /> installed at the entrance to the pad to prevent unauthorized access to the pad. <br /> Drill Pad MWP-2 will be constructed as shown in Drawings DA and D.5 (Exhibit D). <br /> The disturbed area for the MWP-2 Pad will be approximately 1.9 acres,including a 180 <br /> feet by 180 feet pad.and associated soil stockpile. All fill areas will be properly <br /> compacted to minimize the potential for subsidence or slope failure. To reduce erosion <br /> and soil loss,ditches and berms will be constructed to divert stormwater away from the <br /> pad. Silt fencing and/or other sediment retention measures will be used to reduce <br /> sediment migration from the disturbed area. A lockable gate per BLM specifications will <br /> be installed at the entrance to the pad to prevent unauthorized access to the pad. <br /> A 12-foot deep containment pit measuring 30 feet wide by at least 150 feet long will be <br /> constructed on each of the three new drill pads. Pits will be placed to avoid fill areas. <br /> Where fill area cannot be avoided,at least 50 percent of the pit will be constructed below <br /> the original ground level As required per lease stipulations,each pit will be Mined, fenced <br /> on all four sides with net-wire,and covered with plastic barrier to exclude both large and <br /> 4 <br />