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Bear Coal Company -Bear No. 3 Mine <br />HYDROLOGY MONITORING DATA <br />STATION: AA-1 f t~~~~nE.~Z~ <br />Lab <br />Date <br />Parameters 1987 1988 1989 1990 1992 1993 1994 1995 Min Max Ave <br />Wet Chemist <br />Alkalinit as CaC03 m q <br />Bicarbonate as CaC03 m ~ <br />Carbonate as CaC03 m /I <br />H droxide as CaC03 m /I <br />Total Alkalini m A <br />Chloride m /I <br />Hardness as CaC03 m /I 569 <br />0 <br /> <br />589 <br />23 <br />615 482 <br />0 <br />0 <br />482 <br />14 860 <br />0 <br />24 <br />884 <br />24 <br />728 1087 <br />0 <br /> <br />1087 <br />28 <br />921 898 <br />0 <br /> <br />898 <br />27 <br />897 775 <br />0 <br /> <br />775 <br />25 <br />842 905 <br />0 <br />0 <br />905 <br />32 <br />~ 711 935 <br />0 <br />0 <br />935 <br />28 <br />590 482 <br />0 <br />0 <br />482 <br />14 <br />590 1067 <br />0 <br />24 <br />1067 <br />32 <br />921 811 <br />0 <br />8 <br />814 <br />25 <br />729 <br />Nitrate as N dissolved m /I 0.02 4.06 1.88 1.04 0.92 ~ 0.03 0.48 0.0 4 1 <br />Nitrate/Nitrite as N dissolved m /1 0.02 4.1 1.88 1.04 0.93 0.03 0.54 0.0 4 1 <br />Nitrite as N dissolved m /I 0.01 0.04 0.01 0.01 0.01 0 0.06 0.0 0 0 <br />Phos hate m ~ <br />Phos horns ortho dissolved m A <br />Residue Filterable DS ~ 190 C m A 0.02 <br />1691 0.01 <br />888 0.005 <br />2800 0.01 <br />2714 0.013 <br />2654 0.045 <br />2504 0 <br />2750 0.719 <br />2890 0.0 <br />888 1 <br />2890 0 <br />2361 <br />Residue Non-Filterable TSS ~ 103-5C m A <br />Sodium Absor lion Ratio in Water m A <br />Sulfate m A 6.46 <br />862 4.85 <br />286 10.37 <br />1266 8.60 <br />1181 10.65 <br />1191 9.25 <br />1356 10.6 <br />1400 13.4 <br />1370 4.9 <br />286 13 <br />1400 9 <br />1112 <br />Metal Anal sis <br />Aluminum total recoverable m ~ 1.98 0.33 0.66 0.12 2.78 0.05 5.2 0.74 0.05 5.20 1.48 <br />Arsenic total recoverable m A 0.001 0.001 0.001 0.001 0.001 0.001 0 0 0.000 0.001 0.001 <br />Cadmium total recoverable m A 0.006 0.005 0.005 0.01 0.005 0 0 0.000 0.010 0.004 <br />Calcium dissolved m A 172 104 119 152 100 140 84.7 85 172 125 <br />Calcium total recoverable m A <br />Co er total recoverable m ~ 0.01 0.01 0.01 0.02 0.01 0.01 0 0.04 0.000 0.040 0.014 <br />Iron total dissolved m A 0.02 0.0 0 0 <br />Iron total recoverable m A 5.9 1.91 0.86 0.96 2.87 13.3 14.0 2.19 0.860 14.0 5.249 <br />Lead total recoverable m A 0.02 0.02 0.02 0.02 0.02 0.02 0 0 0.00 0.02 0.02 <br />Ma nesium dissolved m ~ 45 21 105 132 120 100 92 21 132 88 <br />Ma nesium total recoverable m A <br />Man anese dissolved m A 0.01 0.0 0 0 <br />Man anese total recoverable m /1 2.11 1.12 0.18 0.25 3.93 3.8 0.258 0.18 3.93 1.66 <br />Mercu total recoverable m /I 0.0002 0.0001 0.0001 0.0001 0.0002 0.0002 0.0000 0.0000 0.0000 0.0002 0.00 <br />Mol bdenum total recoverable m A 0.05 0.05 0.05 0.05 0.05 0.01 0.00 0.00 0.00 0.05 0.03 <br />Selenium total recoverable m A 0.001 0.001 0.003 0.002 0.005 0.001 0.002 0.001 0.00 0.01 0.00 <br />Sodium dissolved m /I 364 205 636 593 639 810 640 737 205.0 737 553 <br />Sodium total recoverable m /l <br />Zinc, total recoverable m A 0.05 0.01 0.03 0.02 1.55 0.01 0.02 0.05 0.01 1.55 0.22 <br />