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Bowie Resources, LLC <br />Bowie No. 2 Mine <br />2012 Annual Hydrology Report <br />Surface Water <br />SP22 <br />Terror Creek - Pond Spring 22 <br />Depth 4' <br />Elevation - 7480 <br />Initiated <br />Activated <br />Date <br />7/18/1983 <br />7/18/1983 <br />7/18/1983 <br />7/18/1983 <br />8/5/2012 <br />1 <br />8/5/2012 <br />0.00 <br />0.00 <br />10/10/2012 <br />8/7/2012 <br />6/28/2012 <br />4/9/2012 <br />Summary Information <br />Field <br />Parameters <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Inflow <br />GPM <br />0.00 <br />0.33 <br />5.63 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />Outflow <br />GPM <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />Freeboard <br />Feet <br />0.0 <br />1.1 <br />4.0 <br />0.40 <br />0.41 <br />0.42 <br />0.42 <br />0.4 <br />0.36 <br />0.21 <br />Temperature <br />Celsius <br />6.9 <br />16.9 <br />28.6 <br />Conductivity <br />umhos /cm <br />343 <br />661 <br />915 <br />pH <br />su <br />7.31 <br />8.31 <br />9.7 <br />Field Comments <br />0 Dryl <br />Dryl <br />Dry <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg /L <br />165.9 <br />343.38 <br />584 <br />Carbonate <br />mg /L <br /><MDL <br />1.9282 <br />11.71 <br />Chloride <br />mg /L <br />1 <br />7.6205 <br />13 <br />Conductivity <br />umhos /cm <br />390 <br />629.15 <br />878 <br />Hardness <br />mg /L <br />132 <br />277.64 <br />377 <br />pH <br />su <br />7.3 <br />8.013 <br />8.56 <br />ResidueFilterable -TDS <br />mg /L <br />145 <br />377.3 <br />564 <br />ResidueNonFilterable -TSS <br />mg /L <br />4 <br />20.579 <br />65 <br />SAR <br />0.53 <br />1.0868 <br />1.897 <br />Sulfate <br />mg /L <br />14 <br />48.52 <br />230 <br />Calcium (Dissolved) <br />mg /L <br />17 <br />57.8921 <br />90 <br />Magnesium (Total) <br />mg /L <br />12 <br />32.3551 <br />51 <br />Sodium (Dissolved) <br />mg /L <br />1 14 <br />40.511 <br />63 <br />TDS Ratio (gray. /calc.) <br />I <br />1 0.99 <br />0.991 <br />0.99 <br />The monitoring point for Spring and Pond 22 is located on an east facing slope that drains down toward Terror Creek. <br />Baseline Information is derived from monitoring events beginning on 7/18/83 through 8/5/2012, <br />Point SP22 influenced by mining on 8/5/12. <br />Figure No. 13 <br />