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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2016 Annual Hydrology Report <br />Summary Information <br />Ground Water <br />MW01 <br />Monitoring Well 1 <br />Depth - 25' <br />Elevation - 5716.15' <br />Initiated <br />Activated <br />Date <br />9/1/1982 <br />9/1/1982 <br />9/1/1982 <br />9/1/1982 <br />9/1/1982 9/1/1982 9/1/1982 <br />9/1/1982 <br />11/30/2016 9/1/2016 6/14/2016 <br />5/6/2016 <br />Field <br />Parameters <br />Baseline <br />UNITS Min Ave <br />Operation <br />Max Min Ave <br />Max <br />Static Water Level <br />Feet <br />4.95 <br />12.75 <br />25.00 <br />12.5 <br />13.3 <br />10.68 <br />12.1 <br />Water Elevation <br />Feet <br />5691.1 <br />5703.4 5711.2 <br />5703.65 <br />5702.85 <br />5705.47 <br />5704.05 <br />Temperature <br />Celsius <br />7.4 <br />13.0 <br />18.5 <br />14 <br />16.3 <br />12.1 <br />10.8 <br />Conductivity <br />umhos/cm <br />220 <br />760 <br />1820 <br />583 <br />373 <br />430 <br />1024 <br />pH <br />su <br />6.3 <br />7.6 <br />8.2 <br />7.66 <br />7.73 <br />7.8 <br />7.42 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />98.5 <br />183.8 <br />329.4 <br />176 <br />157 <br />179 <br />Carbonate <br />mg/L <br /><MDL <br />6.7 <br />179.0 <br /><MDL <br /><MDL <br />179 <br />Chloride <br />mg/L <br /><MDL <br />20.4 <br />233.0 <br />3.8 <br />2.5 <br />2.2 <br />Conductivity <br />umhos/cm <br />222 <br />701 <br />1850 <br />492 <br />300 <br />344 <br />Hardness <br />mg/L <br />107 <br />359 <br />1054 <br />258 <br />156 <br />187 <br />Acidity <br />mg/L <br /><MDL -18.321 <br />49.84 <br />-180 <br /><MDL <br />-83 <br />pH <br />su <br />6.70 <br />7.62 <br />8.41 <br />7.6 <br />7.72 <br />7.56 <br />ResidueFilterable-TDS <br />mg/L <br />15 <br />577 <br />5122 <br />336 <br />204 <br />251 <br />ResidueNonFilterable-TSS mg/L <br /><MDL <br />47 <br />540 <br />28.7 <br />21.9 <br />15.8 <br />SAR <br />0.25 <br />0.63 <br />1.97 <br />0.409 <br />0.347 <br />0.471 <br />Sulfate <br />mg/L <br />5.8 <br />197.6 <br />880.0 <br />98.6 <br />21 <br />36.7 <br />Calcium (Dissolved) <br />mg/L 1 <br />1 1.9 <br />92.3 <br />273.0 <br />75.1 <br />46.7 <br />52.8 <br />Iron (Dissolved) <br />mg/L <br />0.01 <br />0.55 <br />10.50 <br />0.319 <br />11 <br /><MDL <br />Iron (Total) <br />mg/L <br />0.02 <br />0.36 <br />1.51 <br />0.455 <br />0.403 <br />0.304 <br />Magnesium (Dissolved) <br />mg/L <br />7.20 <br />28.27 137.10 <br />17 <br />9.65 <br />13.5 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.031 <br />0.055 <br />0.031 <br />0.021 <br />0.0188 <br />Sodium (Dissolved) <br />mg/L <br />0.5 <br />26.11 <br />102.0 <br />13.31 <br />9.48 <br />16.3 <br />The area of concern for monitoring point MWO1 was affected by the mining operation before its establishment. Therefore, all recorded <br />monitoring events are considered Operational. <br />Negative acidity value indicates equivalent value of alkalinity <br />Monitoring Wells MW -1, MW -2 and MW -3 are located at the coal stockpile/truck dump/train loadout area and were <br />drilled during September 1982 to determine the essential hydrologic functions of the North Fork alluvial valley floor. <br />Two of the wells, MW -2 and MW -3, have since been determined to be installed in areas which are no longer <br />classified as alluvial valley floor. (TR -13) <br />There is no baseline collection possible for points initiated after the influence of mining. <br />