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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2012 Annual Hydrology Report SP23 <br />Stevens Gulch - Pond Spring 23 <br />Elevation - 8300 <br />Initiated <br />Activated <br />Date <br />8/22/1983 <br />8/22/1983 <br />8/22/1983 <br />8/22/1983 <br />1 <br />9.29 <br />10/11/2012 <br />8/8/2012 <br />6/27/2012 <br />4/10/2012 <br />Summary Information <br />Field <br />Parameters <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Outflow <br />GPM <br />0.00 <br />1.19 <br />9.29 <br />0.13 <br />0.16 <br />0.00 <br />1.25 <br />Inflow <br />GPM <br />Seeps' <br />Seeps` <br />Seeps` <br />Seeps` <br />Freeboard <br />Feet <br />0.00 <br />0.03 <br />0.28 <br />0 <br />1 <br />0 <br />0.28 <br />0 <br />Temperature <br />Celsius <br />-0.1 <br />10.3 <br />21.7 <br />5.4 <br />6.3 <br />7.1 <br />Conductivity <br />umhos /cm <br />257 <br />415 <br />891 <br />440 <br />380 <br />340 <br />pH <br />su <br />6.81 <br />7.51 <br />9.6 <br />1 <br />1 <br />7.31 <br />7.41 <br />7.1 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg /L <br />91.9 <br />254.6 <br />424.6 <br />Chloride <br />mg /L <br /><MDL <br />5.2 <br />17.4 <br />Conductivity <br />umhos /cm <br />236 <br />424 <br />670 <br />Hardness <br />mg /L <br />105.0 <br />209.4 <br />322.0 <br />Nitrate - Nitrite <br />mg /L <br />0.106 <br />0.106 <br />0.106 <br />Oil and Grease <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />pH <br />su <br />6.4 <br />7.3 <br />8.4 <br />Phosphate <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />ResidueFilterable -TDS <br />mg /L <br />156 <br />270 <br />380 <br />ResidueNonFilterable -TSS <br />mg /L <br />2 <br />61 <br />216 <br />SAR <br />0.12 <br />0.441 <br />1.01 <br />Sulfate <br />mg /L <br /><MDL <br />10.1 <br />43.0 <br />Aluminum (TREC) <br />mg /L <br />0.021 <br />0.021 <br />0.021 <br />Arsenic (TREC) <br />mg /L <br />0.02 <br />0.02 <br />0.02 <br />Cadmium (TREC) <br />mg /L <br />0.01 <br />0.01 <br />0.01 <br />Calcium (TREC) <br />mg /L <br />41.30 <br />41.30 <br />41.30 <br />Copper (TREC) <br />mg /L <br />0.003 <br />0.0031 <br />0.003 <br />Iron (TREC) <br />mg /L <br />0.15 <br />0.54 <br />1.15 <br />Lead (TREC) <br />mg /L <br />0.05 <br />0.05 <br />0.05 <br />Magnesium (TREC) <br />mg /L <br />11.0 <br />23.4 <br />38.0 <br />Manganese (TREC) <br />mg /L <br />0.01 <br />0.07 <br />0.11 <br />Mercury (TREC) <br />mg /L <br />0.00008 <br />0.00008 <br />0.00008 <br />Molybdenum (TREC) <br />mg /L <br />0.00 <br />0.001 <br />0.00 <br />Selenium (TREC) <br />mg /L <br />0.02 <br />0.02 <br />0.02 <br />Sodium (TREC) <br />mg /L <br />1 15.78 <br />15.78 <br />15.78 <br />Zinc (TREC) <br />mg /L <br />1 0.01 <br />0.01 <br />0.01 <br />The area of concern for monitoring point SP23 has not been affected by the mining operation. Therefore, all recorded monitoring <br />events are considered Base line. <br />"Multiple Seeps Inflow - Unmeasurab/e <br />Baseline Information Collection initiated on 8/22/83 and not yet considered complete. <br />Point SP23 has not been influenced by mining. <br />Figure No. 14 <br />