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Bowie Resources, LLC Surface Water <br />Bowie No. 1 Mine <br />2015 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 6/1/1992 <br />Activated 2/1/1994 2/1/1994 2/1/1994 2/1/1994 <br />Date 1 11/10/2015 9/11/2015 6/21/2015 4/10/2015 <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 0.8977 <br />0.0 <br />4.9 <br />67.01 <br />0 3.75 3.75 0 <br />Freeboard <br />Feet <br />0.0 0.0 0 <br />0.0 <br />1.5 <br />5 <br />3.27 2.83 0.3125 <br />Temperature <br />Celsius <br />0.8 <br />14.3 <br />28.4 <br />16.2 <br />Conductivity <br />umhos/cm <br />102 133 163 <br />70 <br />282 <br />760 <br />180 <br />pH <br />su <br />7.0 <br />8.0 <br />8.9 <br />7.8 <br />Field Comments <br />I I <br />I <br />I <br />No Inflow <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />36 <br />86 <br />163 <br />82 <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 />192 <br />324 <br />153 <br />Hardness <br />mg/L <br />31 <br />97 265.33 <br />81.3 <br />Acidity <br />mg/L <br />1 <br />-79 <br />-11 <br />18.4 <br />-78.8 <br />pH <br />su <br />6.6 <br />7.5 <br />8.2 <br />7.59 <br />ResidueFilterable-TDS <br />mg/L <br />70 <br />130 <br />218 <br />132 <br />ResidueNonFilterable-TSS mg/L <br />7 <br />40 <br />96 <br />52 <br />SAR <br />0.129 <br />0.233 <br />0.489 <br />0.165 <br />Sulfate <br />mg/L <br /><MDL <br />16 <br />76.97 <br />0.52 <br />Calcium (Dissolved) <br />mg/L <br />1 <br />5.91 <br />21.1 <br />42.6 <br />21.2 <br />Iron (Dissolved) <br />mg/L <br />0.01 <br />0.22 <br />0.57 <br />0.245 <br />Iron (Total) <br />mg/L <br />0.03 <br />1.39 <br />2.13 <br />2.13 <br />Magnesium (Dissolved) <br />mg/L <br />3.5 <br />9.8 <br />38.6 <br />6.89 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.061 <br />0.0807 <br />1 1 0.0807 <br />Sodium (Dissolved) <br />mg/L <br />2.0 <br />5.01 <br />9.87 <br />1 1 3.48 <br />TDS Ratio (gray./calc.) <br />1 <br />1 0.771 <br />1.001 <br />1.13 <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. <br />Figure No. 39 <br />