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Bowie Resources, LLC <br />Bowie No. 2 Mine <br />2012 Annual Hydrology Report <br />SP20 <br />Terror Creek - Pond Spring 20 <br />Depth 4' <br />Elevation - 7840 <br />Summary Information <br />Surface Water <br />Initiated <br />Activated <br />Date <br />5/15/1983 <br />5/15/1983 <br />5/15/1983 <br />5/15/1983 <br />1 <br />2.3 <br />10/10/2012 <br />8/7/2012 <br />6/28/2012 <br />4/9/2012 <br />Field <br />Parameters <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Outflow <br />GPM <br />0.0 <br />0.4 <br />2.3 <br />0.63 <br />0.94 <br />0 <br />2.35 <br />Inflow <br />GPM <br />0.0 <br />3.5 <br />37.5 <br />1.25 <br />1.88 <br />1.88 <br />4.69 <br />Freeboard <br />Feet <br />0.0 <br />0.01 <br />0.8 <br />1 <br />0.21 <br />Temperature <br />Celsius <br />2.0 <br />8.8 <br />27.7 <br />8.1 <br />7.9 <br />8.2 <br />6.4 <br />Conductivity <br />umhos /cm <br />250 <br />471 <br />674 <br />540 <br />540 <br />540 <br />460 <br />pH <br />su <br />5.31 <br />7.51 <br />8.9 <br />1 <br />1 <br />7.5 <br />7.41 <br />7.31 <br />7.4 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg /L <br />144.7 <br />290 <br />342 <br />Chloride <br />mg /L <br /><MDL <br />5.0 <br />28.3 <br />Conductivity <br />umhos /cm <br />311.5 <br />513 <br />714 <br />Hardness <br />mg /L <br />108 <br />208 <br />512 <br />Nitrate - Nitrite <br />mg /L <br /><MDL <br />0.31 <br />0.31 <br />Oil and Grease <br />mg /L <br /><MDL <br /><MDLI <br /><MDL <br />pH <br />su <br />6.7 <br />7.4 <br />8.53 <br />Phosphate <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />ResidueFilterable -TDS <br />mg /L <br />240 <br />319 <br />460 <br />ResidueNonFilterable -TSS <br />mg /L <br /><MDL <br />89 <br />1800 <br />SAR <br />0.52 <br />1.27 <br />2.3 <br />Sulfate <br />mg /L <br /><MDL <br />12.55 <br />60.0 <br />Aluminum (TREC) <br />mg /L <br />0.017 <br />0.195 <br />0.540 <br />Arsenic (TREC) <br />mg /L <br />0.002 <br />0.018 <br />0.040 <br />Cadmium (TREC) <br />mg /L <br />0.00 <br />0.01 <br />0.01 <br />Calcium (TREC) <br />mg /L <br />36.3 <br />69.1 <br />128.3 <br />Copper (TREC) <br />mg /L <br />0.002 <br />0.011 <br />0.01 <br />Iron (TREC) <br />mg /L <br />0.010 <br />0.064 <br />0.240 <br />Lead (TREC) <br />mg /L <br />0.02 <br />0.02 <br />0.02 <br />Magnesium (TREC) <br />mg /L <br />17.2 <br />28.6 <br />46.5 <br />Manganese (TREC) <br />mg /L <br />0.005 <br />0.011 <br />0.020 <br />Mercury (TREC) <br />mg /L <br />0.00001 <br />0.00007 <br />0.00014 <br />Molybdenum (TREC) <br />mg /L <br />0.001 <br />0.0051 <br />0.010 <br />Selenium (TREC) <br />mg /L <br />0.0019 <br />0.0123 <br />0.0190 <br />Sodium (TREC) <br />mg /L <br />40.2 <br />47.6 <br />53.1 <br />Zinc (TREC) <br />mg /L <br />0.003 <br />0.005 <br />0.006 <br />The area of concern for monitoring point SP20 has not been affected by the mining operation. Therefore, all recorded <br />monitoring events are considered Baseline. <br />This spring and pond consists of an area of approximately 20'x 20' of diffuse flow which is collected in a pond of <br />approximately 30'x 60'. (Hanna, 99) <br />Baseline Information Collection initieated on 5/15/83 and not yet considered complete. Figure No. 11 <br />Point SP20 has not been influenced by mining. <br />