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Bowie Resources, LLC Surface Water <br />Bowie No. 1 Mine <br />2015 Annual Hydrology Report P1014 <br />East Roatcap Creek - Pond 10-14 <br />Depth - 3' <br />Elevation -8795 <br />Initiated 10/1/1991 10/1/1991 10/1/1991 10/1/1991 <br />Activated 1/1/1994 1/1/1994 1/1/1994 1/1/1994 <br />Date 1 11/10/2015 9/11/2015 6/21/2015 4/10/2014 <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 />0.0 1.4 15.53 0.0 <br />6.1 <br />61.9 0 <br />1.875 <br />7.5 <br />3 <br />Freeboard <br />Feet <br />0.0 <br />1.7 <br />3 3 <br />0 <br />0 <br />0 <br />Temperature <br />Celsius <br />0.2 <br />10.2 <br />22.4 <br />8.6 <br />17.2 <br />9.5 <br />Conductivity <br />umhos/cm <br />120 195 425 30 <br />214 <br />830 <br />150 <br />150 <br />100 <br />pH <br />su <br />7.2 <br />7.8 <br />8.5 <br />8.1 <br />8.5 <br />8.5 <br />Field Comments <br />No Flow <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />41 <br />67 <br />106.7 <br />71.6 <br />Carbonate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br />1 <br />67 384.63 <br /><MDL <br />Conductivity <br />umhos/cm <br />95 <br />154 <br />325 <br />131 <br />Hardness <br />mg/L <br />47 <br />64 <br />96.11 <br />71.6 <br />Acidity <br />mg/L <br />1 -69 <br />-10 <br />19.88 <br />-69.4 <br />pH <br />su <br />6.4 <br />7.5 <br />8.21 <br />8.21 <br />ResidueFilterable-TDS <br />mg/L <br />60 <br />140 <br />465 <br />112 <br />ResidueNonFilterable-TSS mg/L <br />1 <br />44 <br />208 <br />56 <br />SAR <br />0.10 <br />0.22 <br />0.51 <br />0.143 <br />Sulfate <br />mg/L <br /><MDL <br />7.8 <br />16.05 <br />0.95 <br />Calcium (Dissolved) <br />mg/L <br />1 6.41 <br />16.1 <br />24.8 <br />18.9 <br />Iron (Dissolved) <br />mg/L <br />0.06 <br />0.13 <br />0.22 <br />0.083 <br />Iron (Total) <br />mg/L <br />0.20 <br />2.12 <br />3.82 <br />2.73 <br />Magnesium (Dissolved) <br />mg/L <br />3.6 <br />5.8 <br />9.77 <br />5.92 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.04 <br />0.1 1 <br />0.1 <br />Sodium (Dissolved) <br />mg/L <br />1.7 <br />4.11 <br />8.92 1 <br />2.92 <br />TDS Ratio (gray./calc.) <br />% <br />1 1 0.951 <br />1.101 <br />1.35 <br />Pond 10-14 is a man made pond (approximately 10'x 10) with an earthen dam on the east side. The pond is located in the SW1/4NE114 of <br />Section 10, T13S, R92 W The source of the surface water is from the Overland Ditch and natural runoff. (Simon Hydro Search, 92) <br />Baseline Information for Point P1014 is derived from events beginning on 10/1/91 through 1/1/94. <br />Point influenced by mining on 1/1/94. <br />Figure No. 51 <br />