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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2015 Annual Hydrology Report <br />S1404 <br />West Roatcap Creek - Spring 14-4 <br />Elevation - 7480 <br />Summary Information <br />Surface Water <br />Initiated <br />Activated <br />Date <br />12/2/96 <br />12/2/96 <br />12/2/96 <br />12/2/96 <br />11/22/98 11/22/98 11/22/98 <br />1 <br />11/22/98 <br />11/10/15 9/11/15 6/21/15 <br />3/30/15 <br />Field <br />Parameters <br />UNITS <br />Baseline <br />Min Ave <br />Max <br />Operation <br />Min Ave <br />Max <br />Flow <br />GPM <br />0 <br />1.51 <br />5.00 <br />0 <br />0.23 <br />3.00 0 0 0 0 <br />Temperature <br />Celsius <br />4.4 <br />8.7 <br />12.4 <br />0.5 <br />9.9 <br />21.2 <br />Conductivity <br />umhos/cm <br />760 <br />883 <br />1000 <br />670 <br />846 <br />960 <br />pH <br />su <br />6.8 <br />7.3 <br />7.6 <br />7.0 <br />7.3 <br />7.7 <br />Field Comments <br />Seep Seep Seep Seep <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />352 <br />354 <br />355 <br />289.1 <br />355 <br />402 <br />Carbonate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br />19 <br />1 <br />20 <br />21 <br />3.66 <br />46 <br />136.48 <br />1 <br />Conductivity <br />umhos/cm <br />780 <br />800 <br />819 <br />311 <br />822 <br />999 <br />Hardness <br />mg/L <br />398 <br />401 <br />404 <br />31.73 <br />314 <br />455 <br />Acidity <br />mg/L <br />1 <br />61 <br />13 <br />30 1 <br />pH <br />su <br />8.0 <br />8.0 <br />8.0 <br />6.77 <br />7.7 <br />8.9 <br />ResidueFilterable-TDS <br />mg/L <br />480 <br />490 <br />500 <br />190 <br />562 <br />688 <br />ResidueNonFilterable-TSS mg/L <br />6 <br />7 <br />8 <br /><MDL <br />26 <br />66 <br />1 <br />SAR <br />0.93 <br />0.96 <br />0.98 <br />0.396 <br />1.06 <br />1.677 <br />Sulfate <br />mg/L <br />80 <br />80 <br />80 <br />30 <br />74 <br />130 <br />Calcium (Dissolved) <br />mg/L <br />101 <br />104.01 <br />107 <br />71 <br />73.1 <br />114 1 <br />Iron (Dissolved) <br />mg/L <br />0.02 <br />0.04 <br />0.08 <br />Iron (Total) <br />mg/L <br />0.08 <br />0.36 <br />0.79 <br />Magnesium (Dissolved) <br />mg/L <br />33.3 <br />34.4 <br />35.4 <br />3.46 <br />31.9 <br />45.8 <br />Manganese (Total) <br />mg/L <br />0.01 <br />0.09 <br />0.37 <br />1: <br />Sodium (Dissolved) <br />mg/L <br />42.5 <br />43.6 <br />44.7 <br />5.2 <br />43.8 <br />71.4 <br />TDS Ratio (gray./calc.) <br />% <br />1.01 <br />1.01 <br />1.01 <br />0.951-1.03 <br />1.13 1 1 1 _j <br />This spring is a marshlike area of about 20'x 20'. (Hanna, 99) <br />Baseline Information for Point S1404 is derived from events beginning on 12/2/96 through 11/22/98. <br />Point influenced by mining on 11/22/98. <br />Figure No. 28 <br />