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TABLE 1 <br />WATER LEVEL MEASUREMENTS <br />COSTILLA LANDFILL PIT <br />COSTILLA COUNTY, COLORADO <br /> Depth to Corrected <br />Well Date Casing Elevation° Water° Elevation <br />MW1 12/09/98 109.58 33.85 75.73 <br />MW2 12/09/98 97.83 47.20 50.63 <br />MW3 12/09/98 97.77 45.68 52.09 <br />MW4 12/09/98 101.72 35.32 66.40 <br />MWS 12/09/98 96.93 46.00 50.93 <br />' Based on arbitrary benchmark established onsite <br />Measured from top of well casing <br />NA =Not Accessible <br />TABLE 2 <br />HUMAN HEALTH STANDARDS <br />COSTILLA COUNTY LANDFILL PIT <br />COSTILLA COUNTY, COLORADO <br />Biological <br />Total Coliform <br />ND <br />1 CFU/1000 ml <br />Inorganic <br />Barium 0.074 mg/L 2 mg/L <br />Fluoride 0.10 mg/L 4 mg/L <br />Lead <0.002 mg/L 0.05 mg/L <br />Nitrate+Nitri[e 0.57 mg/L 10 mglL <br />ND =Not Detected <br />