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Bowie Resources, LLC <br />Ground Water <br />Bowie No. 1 Mine <br />9/1/1981 <br />IS 2010 Annual Hydrology Report <br />B07 <br />6/25/2010 <br />Borehole 7 <br />86.24 <br />Depth -95.3' <br />93.27 <br />Elevation - 6602' <br />Summary <br />• <br />• <br />IrNiated <br />Activated <br />Date <br />9/1/1981 <br />9/1/1981 <br />9/1/1981 <br />9/1/1981 <br />10/2112010 <br />6/25/2010 <br />The area of concem for monitoring point B07 was affected by the mining operation before ds establishment Therefore, <br />all recorded monitoring events are considered Operational <br />Boreho/e B -7 also referred to as Node 22, rs located below sedimentation pond #4 and is period tally monitored for <br />water quality to ascertain potential groundwater contamination attributable to the East One /aoildies area <br />There is no baseline collection possible for points initiated after the influence of mining. <br />Figure No. 4 <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Sevel <br />Feet <br />69.40 <br />86.24 <br />94:84 <br />93.27 <br />93.48 <br />on <br />Feet <br />6507 <br />6516 <br />6533 <br />6508.73 <br />650852 <br />Ce lsius <br />TO <br />136 <br />19.6 <br />107 <br />16.1 <br />umhos/cm <br />152 <br />1339 <br />2190 <br />1580 <br />1520 <br />su <br />5.8 <br />7.5 <br />8.9 <br />7.5 <br />7.4 <br />nts <br />UNITS <br />Bicarbonate <br />M91L <br />226 <br />428F <br />601 <br />349.93 <br />Carbonate <br />Chlande <br />Conductivity <br />Hardness <br />Acidity <br />mg/L <br />mg /L <br />umhosmm <br />mglL <br />m9 /L <br /><MDL <br />21.8 <br />600 <br />237 <br />24 <br />0.37 <br />81.0 <br />1394 <br />658 <br />24 <br />420.0 <br />2190 <br />1160 <br />24 <br /><MDL <br />53.09 <br />1521 <br />579.84 <br />24 <br />H <br />ResidueFiltemble -TDS <br />ResidueNonFiltemble -TSS <br />SAR <br />su <br />mg /L <br />mgiL <br />6.9 <br />244 <br /><MOL <br />0.62 <br />7.6 <br />987 <br />207 <br />1.28 <br />8.4 <br />1900 <br />824 <br />1.63 <br />7213 <br />1224 <br />104 <br />1.379 <br />Sulfate <br />Calcium (Dissolved) <br />Iron (Dissolvetl <br />m L <br />mL <br />m/L <br />2.41 <br />1.9 <br />0.02 <br />316.54 <br />141.9 <br />0.02 <br />731.00 <br />2690 <br />002 <br />530.96 <br />123.7 <br />0,02 <br />Iron (Total) <br />mg /L <br />1.02 <br />1.02 <br />1.02 <br />1.02 <br />Magnesium (Dissolved) <br />mg /L <br />23.0 <br />70.0 <br />118.0 <br />65.8 <br />Manganese (Total) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MOL <br />Sodium (Dissolved) <br />m L <br />22.0 <br />83.2 <br />408.0 <br />77.4 <br />TDS Ratio (gray /talc.) <br />% <br />0.98 <br />1.05 <br />1 15M <br />1.02 <br />The area of concem for monitoring point B07 was affected by the mining operation before ds establishment Therefore, <br />all recorded monitoring events are considered Operational <br />Boreho/e B -7 also referred to as Node 22, rs located below sedimentation pond #4 and is period tally monitored for <br />water quality to ascertain potential groundwater contamination attributable to the East One /aoildies area <br />There is no baseline collection possible for points initiated after the influence of mining. <br />Figure No. 4 <br />