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Bowie Resources, LLC <br />Bowie No. 2 Mine <br />Free -low <br />Freeman Gulch - Drainage System <br />Elevation - 7560 <br />Baseline - Surface Water <br />Date 11/23/2009 6/8/2009 6/8/2009 3/17/2009 <br />Summary Information - Period of Record (02/1995 - 11/23/2009) <br />Baseline <br />ITS Min Ave Max <br />M 0.00 0.18 3.80 0 0 0 0 <br />No Flow No Flow No Flow Seep <br />8.3 8.4 8.6 <br />hos/cm 90 942 1370 <br />sius 1 14.8 17.1 21.2 <br /><MDL <br />UNITS <br /><MDL <br /><MDL <br /><MDL <br />Bicarbonate <br />mg/L <br />594 <br />604 <br />614 <br />Chloride <br />mg/L <br />16 <br />18 <br />19 <br />Conductivity <br />umhos /cm <br />1170 <br />1190 <br />1210 <br />Hardness <br />mg/L <br />404 <br />430 <br />456 <br />Nitrate- Nitrite <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br />Oil and Grease <br />mg/L <br /><MDLI <br /><MDL <br /><MDL <br />pH <br />su <br />8.31 <br />8.3 <br />8.4 <br />Phosphate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br />ResidueFlterable -TDS <br />mg/L <br />730 <br />765 <br />800 <br />ResidueNonFilterable -TSS <br />mg/L <br /><MDL <br />3 <br />6 <br />SAR <br />2.48 <br />2.63 <br />2.78 <br />Sulfate <br />mg/L <br />130 <br />130 <br />130 <br />Aluminum <br />mg/L <br />0.1301 <br />0.210 <br />0.290 <br />Arsenic <br />mg /L <br /><MDLI <br /><MDL <br /><MDL <br />Cadmium <br />mg/L <br /><MDL1 <br /><MDL <br /><MDL <br />Calcium <br />mg/L <br />56.41 <br />61.2 <br />65.9 <br />Copper <br />mg/L <br /><MDL <br />0.005 <br />0.01 <br />Iron Total <br />mg/L <br />0.11 <br />0.15 <br />0.19 <br />Lead <br />mg /L <br /><MDL <br /><MDLI <br /><MDL <br />Magnesium <br />mg /L <br />64.1 <br />67.5 <br />70.8 <br />Manganese (Total) <br />lmaAL <br />0.010 <br />0.0131 <br />0.016 <br /><MDL <br /><MDLI <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />120.0 <br />123.5 <br />127.0 <br /><MDL <br />0.01 <br />0.03 <br />• <br />• <br />