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Marr Mine - 2007 Annual Hydrology Report May 2007 <br />TABLE 2 - SITE SP-01 HISTORIC MINE AREA SPOIL WATER QUALITY DATA <br />Parameters 2002 2003 2004 2005 2006 2007! <br />Temp °C 12.7 12.0 10.3 11.7 15.3 11.3 <br />H su 8.2 7.8 7.7 7.8 7.9 7.8 <br />E.C. mhos/cm 200C 1700 1400 575(-) 367(-) 1673 1730'; <br />TDS 1313 1287 1273 1253 1240 1203; <br />SAR in water 44.3 44.1 42.8 43.4 43.4 45.21 <br />Calcium dissolved 7.9 9.2 8.2 7.6 8.1 7.2 <br />Sodium dissolved 491 524 483 471 481 470.3! <br />Magnesium dissolved 1.0 1.1 1.1 0.9 0.9 0.7 i <br />Potassium dissolved 2.4 2.3 1.8 1.8 2.1 2.2 i <br />Sulfate 157 63 28 13.3 11.7 13.311 <br />Chloride 60 63 57 52.3 47.7 39.7 <br />Carbonate as CaC03 <2 <2 <2 <2 <2 6.3 <br />Bicarbonate as CaC03 849 1053 1055 1047 1043 1012, <br />Nitrate-Nitrogen diss 0.11 0.09 0.04 0.01 0.01 0.01 <br />Iron dissolved 0.06 0.26 0.38 0.28 0.78 0.137 <br />Manganese (dissolved) 1 0.024 0.044 0.038 0.031 0.033 0.028: <br />Note: All values represent mean values for each water year in mg/I unless otherwise noted. <br />* = Equipment malfunction <br />TABLE 3 - SITE 79-1 HISTORIC OVERBURDEN WATER QUALITY DATA <br />Parameters 1997 1998 1999 2005 2006 2007 <br />-Temp °C 8.9 9.9 9.1 7.5 9.9 8.8 <br />H su 8.3 7.8 8.0 7.9 8.15 8.2 1 <br />E.C. (limhos/cm) 200C 2330 1900 2020 200(-) 1522 19161 <br />TDS 1410 1180 1190 1180 1173 1187 <br />SAR in water 24 28.8 30.5 31.8 29.1 <br />Calcium dissolved 26.7 18.6 16.4 13.1 14.2 13.4 <br />Sodium dissolved 496 439 459 429 464 412 <br />Magnesium dissolved 3.1 2.7 2.0 1.35 1.4 1.3 <br />Potassium dissolved 2.3 2.0 1.8 1.65 1.8 1.8 <br />Sulfate 615 380 170 10.3 6.7 6.7 j <br />Chloride 44 69 210 243.5 257 256.7 <br />Carbonate as CaC03 <2 <2 <2 <2 <2 17 <br />Bicarbonate as CaC03 452 512 626 706 723 669, <br />Nitrate-Nitrogen dis <.02 0.03 <.02 0.01 0.01 0.02 <br />Iron dissolved .25 .10 .06 0.22 0.25 0.10; <br />Manganese (dissolved) 1 .09 .10 .07 0.046 .045 0.041; <br />Note: All values represent mean values for each water year in mg/1 unless otherwise noted. <br />* = Equipment malfunction i <br />6371/2007/2007 hydrology rpt <br />Page 6,