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<br /> 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 />MWl 06/04/98 109.58 42.93 66.65 <br />MW2 06/04/98 97.83 49.77 48.06 <br />MW3 06/04/98 97.77 47.70 50.07 <br />~ MW4 06/04/98 101.72 34.96 66.76 <br />MWS 06/04/98 96.93 47.76 44.19 <br />'Based on arbitrary benchmark establi~bed oasite <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 Colifors _ <br />ND <br />1 CFU/1000 m) <br />Inorganic <br />Barium 0.0?0 mg/L 2 mg/L <br />Fluoride 0.20 mg/L 4 mg/L <br />Lcad <0.002 mg/L 0.05 mglL <br />Nitratc+Nitrite 2.58 mg/L 10 mg/L <br />ND =Not Detected <br />