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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2014 Annual Hydrology Report <br />P8500 <br />Stephen's Gulch - Pond 85 <br />Depth - 4' <br />Elevation -7580 <br />Summary Information <br />Surface Water <br />Initiated <br />2/22/1983 <br />2/22/1983 <br />2/22/1983 <br />2/22/1983 <br />Activated <br />12/1/1992 <br />1 <br />12/1/1992 <br />12/1/1992 <br />12/1/1992 <br />Date <br />11/6/2014 <br />9/29/2014 <br />6/18/2014 <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 />19.4 <br />366.6 <br />0.0 <br />75.8 <br />900 <br />0 <br />0 <br />0 <br />60 <br />Freeboard <br />Feet <br />0.0 <br />0.0 <br />0 <br />0.0 <br />0.11 <br />2.6 <br />0.74 <br />0.64 <br />0 <br />Temperature <br />Celsius <br />1.0 <br />15.8 <br />27.7 <br />0.9 <br />10.0 <br />20.4 <br />17.5 <br />10.2 <br />Conductivity <br />umhos /cm <br />156 <br />393 <br />680 <br />40 <br />263 <br />670 <br />560 <br />200 <br />pH <br />su <br />5.7 <br />8.5 <br />10.9 <br />7.2 <br />8.0 <br />9.7 <br />7.6 <br />8.0 <br />Field Comments <br />No Inflow <br />I No Inflow <br />ISeep Inflow <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg /L <br />5 <br />177 <br />336 <br />18 <br />94 <br />323 <br />211.07 <br />Carbonate <br />mg /L <br /><MDL <br />89.1 <br />550 <br /><MDL <br />0.7 <br />6 <br /><MDL <br />Chloride <br />mg /L <br />1.0 <br />42.8 <br />258 <br /><MDL <br />11 <br />42.19 <br />26.43 <br />Conductivity <br />umhos /cm <br />8 <br />395 <br />610 <br />79 <br />218 <br />556 <br />553 <br />Hardness <br />mg /L <br />61.0 <br />173.1 <br />258 <br />23 <br />109 <br />305.76 <br />305.76 <br />Acidity <br />mg /L <br />2 <br />5 <br />8 <br />2 <br />pH <br />su <br />7.5 <br />8.4 <br />12 <br />6.9 <br />7.7 <br />8.5 <br />7.49 <br />ResidueFilterable -TDS <br />mg /L <br />114.0 <br />256.3 <br />410 <br />60 <br />142 <br />386 <br />386 <br />Residue Non Filterable -TSS <br />mg /L <br />4.0 <br />31.7 <br />128 <br /><MDL <br />17.3 <br />53 <br />32 <br />SAR <br />0.4 <br />1.0 <br />1.85 <br />0.07 <br />1.34 <br />14.8 <br />0.976 <br />Sulfate <br />mg /L <br />8.0 <br />30.2 <br />66 <br /><MDL <br />19 <br />93.02 <br />13.99 <br />Calcium (Dissolved) <br />mg /L <br />16.0 <br />42.2 <br />67 <br />4.9 <br />21.6 <br />49.6 <br />20.2 <br />Iron (Dissolved) <br />mg /L <br />0.03 <br />0.07 <br />0.13 <br />0.032 <br />Iron (Total) <br />mg /L <br />0.14 <br />0.41 <br />0.72 <br />0.14 <br />Magnesium (Dissolved) <br />mg /L <br />5.0 <br />16.1 <br />24 <br />2.6 <br />13.4 <br />62 <br />62 <br />Manganese (Total) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />0.033 <br />Sodium (Dissolved) <br />mg /L <br />8.0 <br />29.8 <br />52 <br />2.9 <br />43.6 <br />554 <br />39.2 <br />TDS Ratio (gray. /calc.) <br />0.12 <br />0.96 <br />1.61 <br />1.04 <br />This large pond is approximately 300'x 400' and is found near the Steven's Gulch Road. (Hanna, 99) <br />Baseline Information for Point P8500 is derived from events beginning on 2/22/83 through 12/1/92. <br />Point influenced by mining on 12/1/92. <br />Figure Number31 <br />