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Bowie Resources, LLC Surface Water <br />Bowie No. 1 Mine <br />2016 Annual Hydrology Report P1001 <br />East Roatcap Creek - Pond 10-1 <br />Depth - 5' <br />Elevation -8520 <br />Initiated 6/1/1992 6/1/1992 6/1/1992 <br />Activated 2/1/1994 2/1/1994 2/1/1994 <br />Date 1 9/28/2016 6/20/2016 5/12/2016 <br />Summary Information <br />Field <br />Parameters <br />UNITS <br />Baseline <br />Min Ave Max <br />Operation <br />Min Ave <br />Max <br />Flow <br />GPM <br />0.2 0.5 0.898 <br />0.0 <br />5.4 <br />67.01 <br />0 5 <br />60 <br />Freeboard <br />Feet <br />0.0 0.0 0 <br />0.0 <br />1.5 <br />5 <br />0.35 0 <br />0 <br />Temperature <br />Celsius <br />0.8 <br />14.0 <br />28.4 <br />7.9 <br />11.4 <br />Conductivity <br />umhos/cm <br />102 133 163 <br />70 <br />275 <br />760 <br />130 <br />160 <br />pH <br />su <br />7.0 <br />8.0 <br />8.9 <br />7.9 <br />8.3 <br />Field Comments <br />I <br />No flow <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />36 <br />84 <br />163 <br />63 <br />Carbonate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br /><MDL <br />12 <br />73 <br /><MDL <br />Conductivity <br />umhos/cm <br />43 <br />186 <br />324 <br />120 <br />Hardness <br />mg/L <br />31 <br />94 <br />265.3 <br />58.9 <br />Acidity <br />mg/L <br />-79 <br />-20 <br />18.4 <br />-54 <br />pH <br />su <br />6.6 <br />7.5 <br />8.2 <br />7.36 <br />ResidueFilterable-TDS <br />mg/L <br />70 <br />131 <br />218 <br />142 <br />ResidueNonFilterable-TSS mg/L <br />7 <br />46 <br />108 <br />108 <br />SAR <br />0.129 <br />0.227 <br />0.489 <br />0.152 <br />Sulfate <br />mg/L <br /><MDL <br />15 <br />76.97 <br />1 1.4 <br />Calcium (Dissolved) <br />mg/L <br />5.91 <br />20.7 <br />42.6 <br />15.3 <br />Iron (Dissolved) <br />mg/L <br />0.01 <br />0.19 <br />0.57 <br />0.0594 <br />Iron (Total) <br />mg/L <br />0.03 <br />2.37 <br />6.31 <br />6.31 <br />Magnesium (Dissolved) <br />mg/L <br />3.5 <br />9.4 <br />38.6 <br />5.02 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.099 <br />0.214 <br />0.2141 <br />1 <br />Sodium (Dissolved) <br />mg/L <br />2.0 <br />4.91 <br />9.87j <br />1 2.461 <br />j <br />Negative value of acidity indicates equivalent value of alkalinity <br />Pond 10-1 is a man made pond (approximately 20'x 20) with an earthen berm located on the south side. The pond is located in <br />the SWI14SE114 of Section 10, T13S, R92W Source of surface water is from the Overalnd Ditch via a man made <br />drainage. (Simon Hydro Search, 92) <br />Baseline Information for Point P1001 is derived from events beginning on 6/1/92 through 2/1/94. <br />Point influenced by mining on 2/1/94. Figure No. 39 <br />