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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2015 Annual Hydrology Report <br />SP1 305 <br />Steven's Gulch - Pond Spring 13-5 <br />Depth 4' <br />Elevation - 7680 <br />Summary Information <br />Surface Water <br />Initiated <br />Activated <br />Date <br />7/6/83 <br />7/6/83 <br />7/6/83 <br />7/6/83 <br />12/1/92 12/1/92 12/1/92 <br />1 <br />12/1/92 <br />11/10/15 9/11/15 6/19/15 <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 />1.82 <br />13 <br />0 <br />1.90 <br />34 0 0 0 0 <br />Freeboard <br />Feet <br />0 <br />0.00 <br />0 <br />0 <br />1.81 <br />4 0.67 0.62 0.64 0.38 <br />Temperature <br />Celsius <br />2.8 <br />13.6 <br />24.4 <br />0.4 <br />12.2 <br />21.2 <br />Conductivity <br />umhos/cm <br />151 <br />603 <br />839 <br />300 <br />591 <br />980 <br />pH <br />su <br />7.1 <br />26.5 <br />640 <br />7 <br />7.8 <br />8.6 <br />Field Comments <br />Emptyl Emptyl Emptyl Seep Inflow <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />253 <br />369 <br />434 <br />96 <br />224 <br />323 <br />Carbonate <br />mg/L <br /><MDL <br />1 <br />6 <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br />3 <br />1 <br />12 <br />66 <br />2 <br />16 <br />62.04 <br />1 <br />Conductivity <br />umhos/cm <br />477 <br />651 <br />804 <br />231 <br />444 <br />635 <br />Hardness <br />mg/L <br />225 <br />267 <br />325 <br />98 <br />179 <br />248 <br />Acidity <br />mg/L <br />1 <br />241 <br />24.00 <br />24 1 <br />pH <br />su <br />7.4 <br />7.83 <br />8.2 <br />7.46 <br />7.86 <br />8.1 <br />ResidueFilterable-TDS <br />mg/L <br />156 <br />367 <br />452 <br />130 <br />267 <br />372 <br />ResidueNonFilterable-TSS mg/L <br />2 <br />103 <br />358 <br />8 <br />40 <br />108 <br />1 <br />SAR <br />0.84 <br />1.38 <br />1.8 <br />0.89 <br />1.13 <br />1.748 <br />Sulfate <br />mg/L <br />23 <br />64 <br />130 <br />10 <br />39 <br />60.92 <br />Calcium (Dissolved) <br />mg/L <br />47 <br />61.921 <br />79 <br />24.91 <br />45.08 <br />60 1 <br />Iron (Dissolved) <br />mg/L <br />0.04 <br />0.04 <br />0.04 <br />Iron (Total) <br />mg/L <br />0.77 <br />0.77 <br />0.77 <br />Magnesium (Dissolved) <br />mg/L <br />20 <br />27.33 <br />32 <br />8.7 <br />16.07 <br />24 <br />Manganese (Total) <br />mg/L <br />0.42 <br />0.42 <br />0.42 <br />Sodium (Dissolved) <br />mg/L <br />29 <br />51.67 <br />64 <br />12.8 <br />33.60 <br />57.8 <br />TDS Ratio (gray./calc.) <br />I <br />1 <br />1 0.961 <br />1.041 <br />1.1 <br />Spring and Pond 13-5 is a man made stock pond with a piped spring (approximately 50'x 30). The pond is fed from a <br />spring and seep located above the pond. (Gordon, 83) <br />Baseline Information for Point SP1308 is derived from events beginning on 7/6/83 through 12/1/92. <br />Point influenced by mining on 12/1/92. <br />Figure No. 63 <br />