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Bowie Resources, LLC Ground Water <br />Bowie No. 1 Mine <br />2015 Annual Hydrology Report SM11 <br />Monitoring Well SM -11 <br />Depth - 46.5' <br />Elevation - 7242.65 <br />Initiated <br />Activated <br />Date <br />8/8/86 8/8/86 <br />1 <br />6/17/15 10/24/14 <br />Summary Information <br />Field <br />Parameters <br />UNITS <br />Baseline <br />Min Ave <br />Operation <br />Max Min Ave Max <br />Static Water Level <br />Feet <br />30.4 <br />36.3 <br />87.8 <br />35.52 <br />37.12 <br />Water Elevation <br />Feet <br />7154.9 <br />7206.3 <br />7212.3 <br />7207.13 <br />7205.53 <br />Temperature <br />Celsius <br />5 <br />1 <br />10.3 <br />20.0 <br />1 <br />10.7 <br />10.1 <br />Conductivity <br />umhos/cm <br />1260 <br />1977 <br />2610 <br />1700 <br />2500 <br />pH <br />su <br />5.8 <br />7.6 <br />8.5 <br />7.6 <br />7.9 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />161.21 <br />1148 <br />1570 <br />765 <br />975.15 <br />Carbonate <br />mg/L <br /><MDL <br />4 <br />86 <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br />2.43 <br />76 <br />521 <br />35 <br />32.51 <br />Conductivity <br />umhos/cm <br />1073 <br />2170 <br />2920 <br />1570 <br />1980 <br />Hardness <br />mg/L <br />0.13 <br />290 <br />679 <br />313 <br />213.224 <br />Acidity <br />mg/L <br />-796 <br />-64 <br />68 <br />-796 <br />12 <br />pH <br />su <br />6.93 <br />7.8 <br />8.8 <br />7.45 <br />8.05 <br />Residue Filterable-TDS <br />mg/L <br />724 <br />1504 <br />1977 <br />1070 <br />1218 <br />ResidueNonFilterable-TSS mg/L <br />0.5 <br />75 <br />518 <br />8 <br />86 <br />SAR <br />0.5371 <br />10.6 <br />19.6 <br />7.19 <br />2.217 <br />Sulfate <br />mg/L <br /><MDL <br />79 <br />543 <br />114 <br />56.39 <br />Calcium (Dissolved) <br />mg/L <br />5.5 <br />44.0 <br />83.8 <br />56.8 <br />41.2 <br />Iron (Dissolved) <br />mg/L <br />0.01 <br />0.10 <br />0.42 <br />1 <br />0.416 <br />0.01 <br />Iron (Total) <br />mg/L <br />0.02 <br />0.84 <br />2.23 <br />0.693 <br />0.53 <br />Magnesium (Dissolved) <br />mg/L <br />6.0 <br />44.5 <br />133.8 <br />41.6 <br />26.8 <br />Manganese (Total) <br />mg/L <br />0.01 <br />0.04 <br />0.10 <br />0.0178 <br />0.01 <br />Sodium (Dissolved) <br />mg/L <br />57 <br />422 <br />773 <br />272 <br />74.4 <br />TDS Ratio (gray./calc.) <br />% <br />0.907 <br />1.00 <br />1.191 1 <br />1.01 <br />The area of concern for monitoring point SM11 has not been affected by the mining operation. Therefore, all recorded <br />monitoring events are considered Baseline. <br />Shallow monitoring wells SM -1 through SM -11 were constructed in 1985 in order to gather additional information <br />on alluvial/colluvial deposits within the permit boundary. They are depicted on Map 4-1. <br />Baseline Information Collection initiated on 8/8/86 and not yet considered complete. <br />Point SM11 has not been influenced by mining. <br />Figure No. 24 <br />