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PEABODY COAL COMPANY - WESTERN DIVISION <br />AQUIFER TEST DATA <br />Mine Nucla East Page 1 / 2 <br />State Colorado ounty Montrose Well No. GW-N18P1 <br />• Personnel h1. Koffler, N. Hansen T• 46 ,R• 15 E', Sec. 6 <br />S . ~. <br />Test Type <br />Total Well Depth 80.00 ft. We iameter 7 7/8 in. Casing Diameter 4.0 in. <br />Casing Type PVC Type o S~ Green or Perforation ,500 Mi]] slot <br />Interval of Screen or Perforation 11,5 - 80.0 <br />Aquifer Overburden quifer Litho ogy sandstone and shale <br />Altitude of Land Surface 5673.98 How Determined Surveved <br />SWL ft. 29,52 How Measured Electric tape <br /> <br />• <br />Date Time <br />(mins.) Water Level <br />(ft.) H <br />Ho= 30.65 H/Ho ~ <br />11-1 -87 Pum off 0959:30 ~ <br /> 0 1 <br /> .14 5y.37 29.85 .97 <br /> .27 58.60 29.08 .95 <br /> .38 57.59 28.07 .92 <br /> •45 56.98 27.46 .90 <br /> .56 56.21 26.69 .67 <br /> 1.08 55.49 25.97 .85 <br /> 1.23 54.53 25.01 .82 <br /> 2.00 52.25 22.73 .74 <br /> 2.50 50.11 20.59 .67 <br /> 3.00 48.25 18.73 .61 <br /> 3.50 46.49 16.97 .55 <br /> 4.00 44.74 15.22 .50 <br /> 4,50 42.67 13.15 ~ .42 <br /> 5.00 40.99 11.47 .37 <br /> 6.U0 37.77 8.25 .27 <br /> 7.00 35.22 5.70 .19 <br /> 8.00 33.35 3.8s .13 <br /> 9.00 31.96 2.44 ,08 <br /> 10.00 31.72 1 6 <br /> 11.00 30.63 1 1 <br /> 12.50 30.28 7 <br /> 14.00 30.11 .5 <br /> 15.00 30.05 .53 0 <br /> 16.00 3U. 01 .49 <br />7-2-12 Revised 04/11/88 <br />