1990-03-27_REPORT - C1981013 (5)

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TABLE 2-9 WYOMING FUEL COMPANY NEW ELK/GOLDEN EAGLE MINES Groundwater PAW-1 Data Minimum Maximum Mean Minimum Maximum Mean Minimum Maximum Mean Minimum Maximum Mean Minimum Maximum Mean Minimum Maximum Mean Entry Value Value Average Value Value Average Value Value Average Value Value Average Value Value Average Value Value Average SAMPLING DATE 1964 1984 1984 1985 1985 1985 1986 1986 1986 1987 1987 1987 1988 1988 1988 1989 1989 1989 Parameter Units -------------------------- ----- Water Level feet 6.2 6.65 6.29 5.7 6.53 6.2 6.1 7 6.36 6 9.2 7.46 6.5 6.67 6.59 7.76 11.00 8.59 PH standard 6.6 8 7 6.9 7.7 7.2 6.3 8.2 7.2 7.2 8.6 7.96 7.6 10.3 8.93 7.10 7.80 7.45 Conductivity umhos/cm 208 394 325.3 219 414 336 207 336 248.6 91 328 183.4 115 129 123.5 9.14 160.00 117.28 Temperature 0 C 6.5 12 9.3 6 12.4 8.7 6.5 12.1 10.2 4.2 10.6 7.6 6 12.4 9.2 7.30 13.10 10.40 Dissolved Oxygen Ppm - - - - - - - - - - - Iron mg/l <.05 <.05 <.05 0.025 0.05 0.08 TSS mg/t - 49 450 0 4 22.00 TDS mg/t 180 122 153 ill 84 64.00 TCS mg/l - 20 130 0 5 120.00 Carbonate mg/l <1 <1 <1 0.5 0.5 2.00 Bicarbonate mg/l 191 143 150 92 60 64.00 Manganese mg/l 0.18 0.09 0.08 0.02 0.01 0.01 Sodium mg/l 16 15 17 9 9.9 10.10 Chloride mg/l 4.3 1.7 1.2 6.2 2.6 2.10 Sulfate mg/l 22 15 20 11 5 5.00 Calcium mg/l 40 25 30 18 6.7 5.63 Magnesium mg/t 9.6 7.1 8.6 5.6 4.5 5.76 Potassium mg/1 1.3 1.25 1.36 1.07 0.77 1.04 Hydroxide mg/1 - - <.05 0.25 0 0.50 Fluoride mg/I - 0.2 0.3 0.2 0.20 Lead mg/l <.01 <.Ol 0.005 0.025 0.03 Selenium mg/1 <.01 - <.01 0.005 0.05 0.05 SAR standard 0.59 0.68 0.7 0.48 0.73 0.72