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0 0 0 <br />TABLE 6=4' PAW-2 Ground Water Well Above Mine Site Summary of Water Quality Data <br />Parameters Year 1984 1985 1986, 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 <br />Depth, Mean feet 12.6 13.4 14.0 14.4 14.7 14.5 15.9 13.8 14.2 14.7 8.6 7.1 11.4 9 <br />8 14 <br />7 <br />Depth, Minimum feet 12.7 12.6 13.0 10.3 14.1 10.0 15.8 11.1 12.1 14.4 6.0 6.6 7.5 . <br />7.7 . <br />14 <br />4 <br />Depth, Maximum feet 13.7 13.9 15.3 17.0 16.2 16.1 16.0 15.0 15.4 15.0 15.5 7.5 15.2 15.5 . <br />15.0 <br />PH Mean (field) standard 6.9 6.9 6.8 6.82 7.5 7.4 7.18 7.41 8.3 7.53 8.64 8.61 7.64 7.61 7.48 <br />PH, Minimum (field) standard 6.7 6.5 6.2 6.6 5.9 7 6.35 6.85 7.95 7.16 6.9 8.14 7.58 6 <br />84 <br />H Maximum field standard 7.7 7.3 7.6 7.2 8.5 7.7 7.6 7.84 8.1 8.1 8 8.87 7.7 . <br />8 <br />1 <br />H Lab standard . <br />8 7 <br />3' <br />Conductivity, Mean umhos/cm 580 722 752 1007 765 597 600 617 968 1082 1054 327 237 331 . <br />719 <br />Conductivity, Minimum umhos/cm 479 521 535 791 600 490 511 398 350 811 556 147 153 222 601 <br />Conductivity, Maximum umhos/cm 611 1337 928 1244 877 836 694 891 1341 1350 1940 660 320 443 937 <br />Temperature, Mean °c 10 10 10.5 9.78 10.55 11.77 11.99 13.92 13.73 13.82 13.9 15 12.5 10.35 10 <br />6 <br />Temperature, Minimum °c 8.8 8.3 9.2 9.1 9.4 9.4 9.1 9.9 6.3 11.5 6.9 9.7 12.4 9.1 . <br />9 <br />3 <br />Temperature, Maximum °c 11.9 11.5 11.5 10.2 11.9 13.4 17.1 17.8 20.4 18 17.7 20.5 12.5 12.1 . <br />12 <br />8 <br />Dissolved'O en m 3.3 3.7 2.75 1,54 . <br />Iron (total) mg/1 158 608 1.45 2.39 0.06 <.03 0.07 130 2 0.52 3.39 36.4 17 <br />3 52 <br />2 <br />Iron (total recoverable) mgn . <br />16 <br />6 . <br />Iron dissolved m . <br />1 <br />0 <br />TSS mg/1 1.79 0.7 248 431 151 1800 650 150 12 92 . <br />40 460 <br />TDS @ 180C mgn 380 306 438 651 339 312 445 677 580 510 70 110 240 110 690 <br />TDS (calculated) mgn 91 230 127 696 <br />TCS m 11 215 5 262 96 31 40 120 <br />Carbonate mgn <1 <1 <1 0.5 0.5 0.5 <1 0.5 <5 0.5 <2 <2 <2 <2 <br />Bicarbonate m 337 289 379 541 303 244 380 532 500 450 50 64 191 111 465 <br />Manganese mg/1 0.81 1.05 0.93 1.62 1.17 1.11 1.37 1.4 2.5 <br />Manganese (total) mgn 1.2 0.017 0.061 1.05 0.104 1 <br />97 <br />Manganese dissolved m 0.021 . <br />1730 <br />Sodium mgn 55 43 57 108 32 26 47 2.41 85 89 12 15.8 27 <br />4 <br />Sodium dissolved m . 17 134 <br />Chloride mgn 5.3 2.2 2.9 8.2 2.6 2 3.4 4.8 4.99 4 8 10 3 4 8 <br />Sulfate M9/1 63 40 76 115 66 48 76 153 120 89 11 30 10 150 <br />Calcium mgn 60 57 76 98 74 65 92 139 99 70 8.6 9 44.1 <br />Calcium dissolved m 16.6 99 <br />1 <br />Magnesium mg/1 13 11.4 17 19.4 14 11.9 17 28.1 20 14 5.2 6.2 9.3 . <br />Magnesium dissolved m 11.3 20 <br />6 <br />Potassium mgn 3.2 2.3 2.6 2.67 1.94 1.8 3 4.5 4.4 2 0.8 0.7 1.8 . <br />Potassium dissolved m 1.5 3 <br />4 <br />Hydroxide mgn <.05 0.25 0.5 <1 0.5 0.5 <2 <2 <2 . <br /><2 <br />Fluoride M911 0.7 0.2 0.1 0.3 0.2 0.2 0.26 0.26 0.2 0.2 0.3 0.2 0 <br />2 <br />Lead mgn 0.48 <.01 0.005 0.025 0.025 <.05 0.025 0.005 0.025 <.02 <.02 . <br />Lead dissolved m <.001 < <br />001 <br />Selenium mgn <.01 <.01 0.005 0.05 0.05 <.1 0.05 0.001 0.003 <.001 0.007 . <br />Selenium dissolved m <.001 0 <br />005 <br />Mercury mgn . <br />SAR standard 1.68 1.36 1.54 2.61 0.91 0.78 1.18 2.41 2.03 2.54 0.79 1 0.99 0 <br />79 3 <br />23 <br />Settleable Solids mgn . . <br />Zinc mgn <br />Hardness m Aa ,,,