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1 <br />1 <br />1 <br />1 <br />t <br />1 <br />Table 3 <br />HISTORIC MINE AREA OVERBURDEN WATER QUALITY DATA <br /> 1986 1987 1988 1989 1990 1991 <br />Temp (deg C) 8.3 7.5 a.3 9.5 8 8.8 <br />pH (SU) 7.6 8.4 8.1 7.7 7.8 6.3 <br />E.C. (UmhO/Cm) 1277 2226 2613 2684 2195 1726 <br />TDS 1015 1194 1216 1232 1265 1311 <br />$AR 24.66 32.64 35.61 36.25 43.61 32.03 <br />Ca 14 11 12 13 11 12 <br />Na 394 443 soo as7 s04 431 <br />Mg a z z 2 <i.o 3 <br />K 3 4 3 3 2 4 <br />$04 <176 147 150 128 <136 135 <br />CI 258 345 378 402 385 379 <br />C03 0 o a o iz o <br />HC03 379 389 400 386 382 405 <br />N03/N <0.093 0.49 0.55 <0.478 <0.720 0.73 <br />Fe (diss) 0.12 <o.oza 0.07 <0.03 <o.ozs o.oi <br />Mn (diss) 0.07 <o.oas 0.07 o.os o.oi 0.02 <br />AI o.io <o.os <o.os <o.os <o.os o.os <br />Ba <0.13 0.18 0.13 0.13 <0.165 0.17 <br />B 0.15 0.09 0.16 0.16 <0.020 0.11 <br />Cd <o.oos <o.oos <o.oos <o.oos <o.oos <o.oos <br />Cf <0.01 <0.01 <0.01 <0.01 0.01 <0.01 <br />CU <0.02 <0.02 <0.01 <0.01 <0.015 <0.01 <br />Pb <o.oz <0.02 <0.02 <0.02 <o.o2s <0.02 <br />Hg <0.0002 <0.0002 <o.oooi <0.0001 <o.oooi <o.oooi <br />Mo <o.os <o.os <o.os <o.os <o.os <o.os <br />Ni <0.02 <0.02 <0.02 <0.02 <0.02 <o.oz <br />P (OrthO) 0.105 0.035 0.080 0.080 <0.090 0.113 <br />V <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <br />Note: All values in mg/I unless otherwise noted <br />