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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2014 Annual Hydrology Report <br />P8700 <br />East Roatcap Creek - Pond 87 <br />Depth - 4' <br />Elevation -7990 <br />Summary Information <br />Surface Water <br />Initiated <br />6/14/1983 <br />6/14/1983 <br />6/14/1983 <br />6/14/1983 <br />Activated <br />10/1/1995 <br />1 <br />10/1/1995 <br />10/1/1995 <br />10/1/1995 <br />Date <br />11/6/2014 <br />9/29/2014 <br />6/17/2014 <br />4/24/2014 <br />Field <br />Parameters <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow <br />GPM <br />0.0 <br />4.0 <br />134.6 <br />0.0 <br />38.0 <br />1344 <br />0 <br />0 <br />0 <br />15 <br />Freeboard <br />Feet <br />0.0 <br />0.0 <br />0 <br />0.0 <br />0.8 <br />4 <br />1.38 <br />1.32 <br />0.29 <br />0 <br />Temperature <br />Celsius <br />0.7 <br />16.2 <br />28.9 <br />0.5 <br />10.6 <br />23.5 <br />10.1 <br />Conductivity <br />umhos /cm <br />70 <br />367 <br />757 <br />70 <br />345 <br />580 <br />140 <br />pH <br />su <br />5.8 <br />11.6 <br />174 <br />7.1 <br />8.0 <br />8.4 <br />8.3 <br />Field Comments <br />No inflowl <br />No inflowl <br />No inflow <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg /L <br />36 <br />211 <br />385 <br />58 <br />166 <br />279 <br />Carbonate <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg /L <br />1 <br />2 <br />6 <br /><MDL <br />6.60 <br />22.33 <br />Conductivity <br />umhos /cm <br />77 <br />299 <br />543 <br />112 <br />307 <br />504 <br />Hardness <br />mg /L <br />37 <br />142 <br />247 <br />50 <br />129 <br />213 <br />Acidity <br />mg /L <br />14 <br />39 <br />64.44 <br />pH <br />su <br />7.3 <br />7.8 <br />8.2 <br />6.7 <br />7.8 <br />8.4 <br />ResidueFilterable -TDS <br />mg /L <br />60 <br />196 <br />324 <br />60 <br />208 <br />336 <br />ResidueNonFilterable -TSS <br />mg /L <br />10 <br />96 <br />585 <br />2 <br />22 <br />44 <br />SAR <br />0.17 <br />3.48 <br />36 <br />0.23 <br />0.64 <br />1.18 <br />Sulfate <br />mg /L <br /><MDL <br />71 <br />21 <br /><MDLI <br />9.17 <br />20 <br />Calcium (Dissolved) <br />mg /L <br />10.0 <br />32.8 <br />53 <br />9.4 <br />28.7 <br />46.4 <br />Iron (Dissolved) <br />mg /L <br />0.03 <br />0.05 <br />0.06 <br />Iron (Total) <br />mg /L <br />0.67 <br />1.06 <br />1.45 <br />Magnesium (Dissolved) <br />mg /L <br />3.0 <br />16.4 <br />31 <br />4.4 <br />13.9 <br />23.5 <br />Manganese (Total) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />Sodium (Dissolved) <br />mg /L <br />3.01 <br />21.31 <br />47 <br />3.81 <br />18.21 <br />39 <br />TDS Ratio (gray. /calc.) <br />I <br />I <br />1 <br />1 0.931 <br />1.071 <br />1.49 <br />This large pond is approximately 200'x 75' (Hanna, 99) <br />Baseline Information for Point P8700 is derived from events beginning on 6/14/83 through 10/1/95. <br />Point influenced by mining on 10/1/95. <br />Figure Number32 <br />