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<br />~ ~ ~ <br /> MINREC, INC., NORTH THOMPSON CREEK MINES <br />NO. 1 MINE DISCHARGE <br />Parameter 06/28/89 10/05/89 06/07/90 06/19/91 06/04/92 06/01/93 10/7/94 6/26/95 MIN MAX AVG <br />H su 8.1 7.5 8.0 8.2 8.1 8.1 8.0 7.9 7.5 8.2 8.0 <br />Cond. umhos/cm 3900 3300 3000 2800 2600 2400 2300 3200 2300 3900 2938 <br />Tem de rees C 18 13 17 14 16 17 10 16 10 18 15 <br />TDS m /I 2065 2020 2110 1925 1655 1755 1530 1975 1530 2110 1879 <br />TSS m /I <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <br />Bicarbonate m /I 945.00 939.00 980.00 942.00 772.20 910.10 716.00 940.00 716.00 980.00 893.04 <br />Calcium m /I 382.00 390.10 402.20 386.20 267.00 316.00 290.10 390.40 267.00 402.20 353.00 <br />Chloride m /I 76.00 68.10 72.40 60.80 78.80 50.40 61.40 61.40 50.40 78.80 66.16 <br />Co er m /I 0.017 0.015 0.011 0.011 0.100 0.026 0.018 0.020 0.011 0.100 0.027 <br />iron m ll 0.49 0.59 0.31 0.68 0.52 0.41 0.14 0.13 0.13 0.68 0.41 <br />Ma nesium m /I 56.20 54.00 56.20 42.20 52.00 39.82 30.60 50.80 30.60 56.20 47.73 <br />Man anese m !I 0.340 0.390 0.200 0.191 0.400 0.200 0.090 0.200 0.090 0.400 0.251 <br />Sodium m /I 165.00 161.50 182.40 161.40 121.40 142.60 121.70 170.80 121.40 182.40 153.35 <br />Sulfate m /I 390.00 401.00 420.20 360.20 308.80 339.20 304.60 374.40 304.60 420.20 362.30 <br />Zinc m /I 0.18 0.18 0.19 0.168 0.32 0.204 0.09 0.17 0.090 0.320 0.188 <br />Beginning April 1994 Iron is measured as potentially dissolved. <br />AHR7.WK3 <br />