Laserfiche WebLink
Marr Mine - 2007 Annual Hydrology Report <br />TABLE 6 - SITE 79-61 HISTORIC COAL SEAM WATER QUALITY DATA <br />May 2007 <br />Parameters 1997 1998 1999 2005 2006 2007 <br />Temp °C 8.4 9.5 9.2 8.0 9.8 8.3 <br />H su 8.2 8.0 7.9 7.8 7.9 8.0 <br />E.C. mhos/cm 20°C 1165 1035 1130 200(-) 907 1219 <br />TDS 710 670 740 590 617 6931 <br />SAR in water 9.71 7.63 3.9 4.4 6.3 <br />Calcium dissolved 43.3 47.5 43.9 55.8 59.6 53.21 <br />Sodium dissolved 227 200 219 122.5 141.7 182 <br />Magnesium dissolved 11.9 13.1 12.1 14.9 16.0 131 <br />Potassium dissolved 3.1 3.5 3.1 2.5 2.7 3.61 <br />Sulfate 68 70 30 110 73.3 76.7' <br />Chloride 20 55 12 10.5 23.7 37.31 <br />. <br />Carbonate as CaC03 3.5 5.5 <2 <2 54.0 19.7' <br />Bicarbonate as CaC03 562 503 566 393 453 497 <br />Nitrate-Nitrogen diss <.02 <.02 <.2 0.01 0.01 0.01 <br />Iron dissolved .07 .03 .01 0.11 0.07 0.043 <br />Manganese (dissolved) 1 .02 .02 .02 0.041 0.039 0.016 <br />Note: All values represent mean values for each water year in mg/I unless otherwise noted. <br />= Equipment malfunction <br />6371/2007/2007 hydrology rpt Page 8