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Bowie Resources, LLC Surface Water <br />Bowie No. 1 Mine <br />2015 Annual Hydrology Report P1004 <br />East Roatcap Creek - Pond 10-4 <br />Depth - 3' <br />Elevation -8780 <br />Initiated 10/1/1991 10/1/1991 10/1/1991 10/1/1991 <br />Activated 11/1/1993 11/1/1993 11/1/1993 11/1/1993 <br />Date 1 11/10/2015 6/21/2015 4/10/2015 11/6/2014 <br />Summary Information <br />Field <br />Parameters <br />UNITS <br />Baseline Operation <br />Min Ave Max Min Ave <br />Max <br />Flow <br />GPM <br />0.4 1.3 10.131 0.0 <br />10.2 <br />65.6 <br />1.36 <br />7.5 <br />5 <br />1.7 <br />Freeboard <br />Feet <br />0.0 <br />0.1 <br />1.5 <br />0 <br />0 <br />0 <br />0 <br />Temperature <br />Celsius <br />0.4 <br />10.8 <br />23.9 <br />7.9 <br />17.3 <br />9.7 <br />8.1 <br />Conductivity <br />umhos/cm <br />110.0 182.8 225 40 <br />113 <br />490 <br />140 <br />170 <br />140 <br />130 <br />pH <br />su <br />6.8 <br />8.0 <br />8.9 <br />7.9 <br />8.1 <br />7.9 <br />8 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />31 <br />55 <br />90 <br />81.8 <br />Carbonate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br /><MDL <br />39.62 260.06 <br /><MDL <br />Conductivity <br />umhos/cm <br />68 <br />144 <br />546 <br />149 <br />Hardness <br />mg/L <br />28.75 <br />55.30 <br />137.89 <br />81.5 <br />Acidity <br />mg/L <br />1 -81.30 <br />-5.54 <br />29.09 <br />-81.3 <br />pH <br />su <br />6.6 <br />7.4 <br />8.1 <br />7.9 <br />ResidueFilterable-TDS <br />mg/L <br />6 <br />118 <br />382 <br />124 <br />ResidueNonFilterable-TSS mg/L <br />2 <br />37 <br />96 <br />78.7 <br />SAR <br />0.097 <br />0.207 <br />0.522 <br />0.158 <br />Sulfate <br />mg/L <br /><MDL <br />23.1 <br />135 <br />0.87 <br />Calcium (Dissolved) <br />mg/L <br />1 5.11 <br />13.1 <br />22.0 <br />21.3 <br />Iron (Dissolved) <br />mg/L <br />0.07 <br />0.29 <br />0.74 <br />0.0728 <br />Iron (Total) <br />mg/L <br />0.43 <br />1.93 <br />5.89 <br />1.16 <br />Magnesium (Dissolved) <br />mg/L <br />2.7 <br />5.5 <br />21.6 <br />6.87 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.725 <br />2.69 <br />1 <br />2.69 <br />Sodium (Dissolved) <br />mg/L <br />1.39 <br />3.661 <br />12.40 <br />1 <br />3.37 <br />TDS Ratio (gray./calc.) <br />% <br />1 1 0.071 <br />1.081 <br />1.79 <br />Pond 10-4 is a man made pond (approximately 50'x 50) with an earthen dam located on the south side. The pond is located in the <br />SE114NW114 of Section 10, T13S, R92W. Source of the surface water is from the Overland Ditch. (Simon Hydro Search, 92) <br />Baseline Information for Point P1004 is derived from events beginning on 10/1/91 through 11/1/93. <br />Point influenced by mining on 11/1/93. <br />Figure No. 45 <br />