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Colowyo Mine <br />Station: A-6 <br /> Std Coef Max inarn Minimum Max Value Min Value p of <br /> Mean Dev Var Range Value Value Found Found Samp <br />FIELD MEASUREMENTS <br />Field pH (S.U.) 7.53 0.40 5 1.30 8,30 7.00 11/30/93 08/23/93 16 <br />Field Temperature (deg C) 8.7 2.9 34 11.9 14,9 3.0 08/01/84 11/01/84 23 <br />field Conductivity (urtho/cm) 1111 103 9 525 1448 923 02/20/96 09/26/96 16 <br />LABORATORY MEASUREMEN TS <br />pH (S.U.) 7.5 0.3 4 1.3 8,6 7.3 11/30/93 06/01/93 23 <br />Conductivity (un~ho/cm) 1099 88 8 445 1440 995 05/01/85 02/20/96 23 <br />TDS (180 deg C) (al9/l) 660 87 13 490 910 420 05/01/85 03/13/93 23 <br />Phosphate as P (mg/t) 0.055 0.097 175 0.478 0,483 0.005 02/20/96 11/30/93 23 <br />Bicarbonate as CaC03 (mg/l) 486 105 22 532 544 12 03/21/94 06/01/94 23 <br />Sulfate (mg/l) 133.83 46.34 35 180.00 280,00 100.00 05/01/85 04/15/96 23 <br />Anmonia Nitrogen as N (mg/l) 1.53 0.11 7 0.53 1,76 1.23 08/23/93 11/19/96 18 <br />Nitrate + Nitrite as N (mg/l) 0.60 1.23 205 2.78 2,80 0.02 11/19/96 04/15/96 5 <br />Nitrate as N (mg/l) 0.21 0.67 319 2.78 2,80 0.02 11/19/96 08/19/92 17 <br />Nitrite as N (mg/l) 0.01 0.00 0 0.00 0,01 0.01 02/20/96 02/20/96 4 <br />Arsenic (m9/l) 0.001 0.000 35 0.001 0,002 0.001 08/01/84 05/01/85 23 <br />Calcium (mg/l) 59.6 9.6 16 39.0 90,0 51.0 05/01/85 08/19/92 23 <br />Iron (mg/l) 1.378 0.842 61 3.540 3,560 0.020 08/19/92 02/01/85 22 <br />Lead (mg/l) 0.02 0.00 0 0.00 0,02 0.02 08/19/92 08/19/92 19 <br />Magnesium (mg/t) 52.3 8.6 16 38.0 80,0 42.0 05/01/85 08/19/92 23 <br />Manganese (m9/L) 0.052 0.034 65 0.130 0,160 0.030 08/01/84 11/24/92 23 <br />Mercury (mg/L) 0.0002 0.0001 55 0.0004 0,0005 0.0001 08/01/84 08/19/92 23 <br />Selenium (mg/L) 0.002 0.001 85 0.005 0,006 0.001 05/01/85 08/19/92 23 <br />Sodium (mg/L) 121.3 9.4 8 33.0 134,0 101.0 09/26/96 08/19/92 23 <br />Zinc (mg/l) 0.019 0.022 114 0.095 0,100 0.005 03/13/93 02/01/85 23 <br />