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G-8 <br /> Records indicate that the well was drilled in April 1991, and reportedly completed to a total depth <br /> of 600 ft.,with the screened interval being between 540 ft.and 600 ft.bgs. Lithologic data indicates <br /> "sand" and"clay" materials to a depth of 15 ft. bgs, followed by alternating "shale" and "rock" <br /> strata to a depth of 397 ft. A"sand"zone was again recorded as being present from 397 ft.to 520 <br /> ft., followed by a thin "rock" zone present between 520 and 524 ft., and "sand" again present <br /> between 524 ft. and 600 ft. bgs. Given its location, the lithology depicted in this well can be <br /> considered generally representative of conditions at or underlying the immediately adjacent Permit <br /> Area. <br /> (2) Well Permit No. 83340-F)located in the SW 1/4 of the SW IA of Section 12: This recently drilled <br /> well (July/August 2019) was completed to a total depth of 845 ft. bgs. Information provided on <br /> the well log is limited;however,it is indicated that on completion(August 7,2019)the static level <br /> was at 360 ft. bgs. Lithologic data suggests that water-bearing zones were encountered in three <br /> discrete series of sandstone horizons (each underlain by shale) at approximate intervals of 380 to <br /> 420,460 to 530,and 540 to 570 ft. bgs,respectively. <br /> (3) If the operation is expected to directly affect surface or groundwater systems the <br /> OperatorlApplicant shall. <br /> (a) Locate on the map (in Exhibit C) tributary water courses, wells, springs, stock water ponds, <br /> reservoirs,and ditches on the affected land and on adjacent lands where such structures may be <br /> affected by the proposed mining operations. <br /> As indicated in Item(1),above,the Keenesburg No.2 Mine is not expected to directly affect either <br /> surface or groundwater systems. <br /> Irrespective of this expectation,CSC has mapped all such features on the"affected land"or Permit <br /> Area and its immediate surrounds. Refer to Figure G-1: Surface and Groundwater Features,as <br /> provided herein. <br /> (b) Identify all known aquifers. <br /> The first-encountered economic aquifer is that of the Denver Basin(Fox Hills sandstone),typically <br /> encountered at depths in excess of 500-ft. below ground surface in the area. Comparatively, the <br /> anticipated maximum mining depth at the Keenesburg Project will be less than 50-ft. (nominally, <br /> in the range of 20-ft.to 30-ft.depth,subject to variation/undulation in topography and economically <br /> Keenesburg No. 2 Mine_112 Reclamation Operation—November 22, 2019 <br />