1990-03-27_REPORT - C1981013 (5)

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TABLE 2-9 WYOMING FUEL COMPANY NEW ELK/GOLDEN EAGLE MINES Groundwater PAW-3 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 1984 1984 1984 1985 1985 1985 1986 1986 1986 1987 1987 1987 1988 1988 1988 1989 1989 1989 Parameter Units -------------------------- ----- Water Level feet Not 16.67 17.98 17.2 11.2 18.14 12.8 11 13.7 12.38 11.2 13.3 12.14 17.00 17.68 17.38 PH standard Installed 6.8 7.3 7 6.6 8.2 7.1 6.8 7.7 7.12 6.2 8.9 7.77 7.20 8.80 7.85 Conductivity umhos/cm 483 760 603 430 948 757 761 984 854.6 758 901 836.75 767.00 921.00 828.00 Temperature 0 C 6 10.8 9 7.1 11.6 9.6 6.5 9.6 8.1 7.3 10.9 8.85 7.80 13.80 10.57 Dissolved Oxygen ppm - - - - Iron mg/l <.05 0.25 0.13 <.05 0.025 0.31 6.28 TSS mg/l 121 1170 0 537 160.00 TDS mg/I 291 384 336 547 611 481 487.00 TCS mg/l 19 310 0 108 188.00 Carbonate mg/l <1 10 4 <1 0.5 0.5 0.50 Bicarbonate mg/I 253 341 291 447 497 415 430.00 Manganese mg/I 0.25 0.46 0.34 0.27 0.61 0.6 0.82 Sodium mg/t 51 82 69 89 103 76 76.00 Chloride mg/l 1.7 9.7 5.4 6.3 8.6 4.7 5.30 Sulfate mg/l 49 68 56 102 108 79 60.00 Calcium mg/l 28 44 38 76 84 72 74.00 Magnesium mg/t 7.1 11.5 9.1 21 20 16.3 15.70 Potassium mg/I 2.09 2.46 2.33 4.3 3.4 2.69 2.70 Hydroxide mg/I - <.05 0.25 0 0.50 Fluoride mg/l 0.4 0.2 0.1 0.30 Lead mg/l <.01 0.005 0.025 0.03 Selenium mg/l - <.01 0.005 0.05 0.05 SAR standard 1.83 2.33 2.62 2.11 2.09