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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2016 Annual Hydrology Report <br />Summary Information <br />Ground Water <br />MW02 <br />Monitoring Well 2 <br />Depth - 41.8' <br />Elevation - 5737.4' <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 Max <br />Static Water Level <br />Feet <br />10.00 <br />21 31.55 <br />22.2 <br />17.86 <br />21.89 <br />24.6 <br />Water Elevation <br />Feet <br />5705.9 5716.7 5727.4 <br />5715.20 <br />5719.54 <br />5715.51 <br />5712.80 <br />Temperature <br />Celsius <br />10.6 <br />13.5 17.0 <br />12.4 <br />15.1 <br />13 <br />12.8 <br />Conductivity <br />umhos/cm <br />470 <br />661 1225 <br />665 <br />663 <br />640 <br />664 <br />pH <br />su <br />6.7 <br />7.6 8.3 <br />7.6 <br />7.47 <br />7.7 <br />7.5 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />287.00 <br />296 305.00 <br />287 <br />305 <br />Carbonate <br />mg/L <br /><MDL <br />305 305.00 <br /><MDL <br />305 <br />Chloride <br />mg/L <br />4.50 <br />5 4.60 <br />4.6 <br />4.5 <br />Conductivity <br />umhos/cm <br />533.00 <br />557 581.00 <br />581 <br />533 <br />Hardness <br />mg/L <br />291.00 <br />296 300.00 <br />300 <br />291 <br />pH <br />su <br />7.52 <br />8 7.57 <br />7.57 <br />7.52 <br />ResidueFilterable-TDS <br />mg/L <br />359.00 <br />368 377.00 <br />359 <br />377 <br />ResidueNonFilterable-TSS mg/L <br />5.60 <br />6 5.60 <br />5.6 <br /><MDL <br />SAR <br />0.60 <br />1 0.61 <br />0.614 <br />0.603 <br />Sulfate <br />mg/L <br />30.80 <br />31 31.70 <br />30.8 <br />31.7 <br />Calcium (Dissolved) <br />mg/L <br />61.30 <br />65 68.70 <br />61.31 <br />68.7 <br />Magnesium (Dissolved) <br />mg/L <br />35.70 <br />37 39.20 <br />35.71 <br />39.2 <br />Sodium (Dissolved) <br />mg/L <br />1 20.801 <br />231 25.30j <br />20.81 <br />25.3 <br />The area of concern for monitoring point MW02 was affected by the mining operation before its establishment. Therefore, all recorded <br />monitoring events are considered Operational. <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 />