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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2016 Annual Hydrology Report S2-10 <br />Hubbard Creek - Spring 2-10 <br />Elevation - 6320' <br />Initiated <br />Activated <br />Date <br />4/1/1999 <br />4/1/1999 <br />4/1/1999 <br />9/24/1999 9/24/1999 <br />1 <br />9/24/1999 <br />10/24/2016 9/21/2016 <br />06/24/2016 <br />Summary Information <br />Field <br />Parameters <br />UNITS <br />Min <br />Baseline <br />Ave <br />Max <br />Operation <br />Min Ave Max <br />Flow <br />GPM <br />0.0 <br />0.9 <br />3.6 <br />0.0 0.1 4.2 0 0 0 <br />FieldComment <br />Dry Dry Dry <br />ph <br />su <br />7.4 <br />7.4 <br />7.4 <br />8.0 8.6 10.2 <br />Conductivity <br />umhos/cm <br />840 <br />840 <br />840 <br />940 1294 1670 <br />Temperature <br />Celsius <br />4.9 <br />4.9 <br />4.9 <br />4.0 17.2 24.6 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />570.7 570.7 570.7 <br />Chloride <br />mg/L <br /><MDL <MDL <MDL <br />Conductivity <br />umhos/cm <br />1048.5 1048.5 1048.5 <br />Hardness <br />mg/L <br />375.48 375.48 375.48 <br />Nitrate -Nitrite <br />mg/L <br /><MDL <MDL <MDL <br />Oil and Grease <br />mg/L <br />1 <br />11.391 11.39 11.39 <br />pH <br />su <br />8.34 8.34 8.34 <br />Phosphate <br />mg/L <br /><MDL <MDL <MDL <br />Residue Filterable-TDS <br />mg/L <br />1052 1052 1052 <br />Residue NonFilterable-TSS <br />mg/L <br />15 15 15 <br />SAR <br />0.29 0.29 0.29 <br />Sulfate <br />mg/L <br />205.39 205.39 205.39 <br />Aluminum <br />mg/L <br />0.25 0.25 0.25 <br />Arsenic <br />mg/L <br />0.0066 0.0066 0.0066 <br />Cadmium <br />mg/L <br /><MDL <MDL <MDL <br />Calcium <br />mg/L <br />53.4 53.4 53.4 <br />Copper <br />mg/L <br />1 <br />0.061 0.06 0.06 <br />Iron (Total) <br />mg/L <br />I <br />0.51 0.51 0.51 <br />Lead <br />mg/L <br />0.08 0.08 0.08 <br />Magnesium <br />mg/L <br />58.8 58.8 58.8 <br />Manganese (Total) <br />mg/L <br />0.03 0.03 0.03 <br />Mercury <br />mg/L <br />0.0002 0.0002 0.0002 <br />Molyebdenum <br />mg/L <br />I I <br /><MDLl <MDL <MDL <br />Selenium <br />mg/L <br />0.0068 0.0068 0.0068 <br />Sodium <br />mg/L <br />12.94 12.94 12.94 <br />Zinc <br />mg/L <br />0.0551 0.055 0.055 <br />Influenced by the disturbance of Freeman Gulch. <br />The monitoring point for S2-10 is found along the Hubbard Creek road near the mouth of Freeman Gulch. The flow and <br />field parameters are measured where the flow crosses the Hubbard Creek road, just before it enters Hubbard Creek. <br />Baseline information for Point S2-10 is derived from events beginning on 4/1/99 through 11/25/99. <br />Point influenced by mining on 11/25/99. <br />Figure 39 <br />