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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2013 Annual Hydrology Report C- Gulch -lo <br />Drainage System <br />Elevation - 5960 <br />Initiated <br />2/28/1995 <br />2/28/1995 <br />2/28/1995 <br />2/28/1995 <br />Activated <br />3/30/1997 <br />1 <br />3/30/1997 <br />3/30/1997 <br />3/30/1997 <br />Date <br />11/12/2013 <br />9/17/2013 <br />6/17/2013 <br />4/4/2013 <br />Summary Information <br />Field <br />Parameters <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow <br />GPM <br />0 <br />0 <br />0 <br />0.0 <br />8.8 <br />240.0 <br />0 <br />0 <br />5 <br />0 <br />FieldComment <br />No Flow <br />No Flow <br />No Flow <br />ph <br />su <br />6.5 <br />7.8 <br />9.1 <br />7.0 <br />Conductivity <br />umhos /cm <br />410 <br />4063 <br />10400 <br />2300 <br />Temperature <br />Celsius <br />0.2 <br />11.3 <br />21.4 <br />1 18.1 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg /L <br />168.7 <br />484.8 <br />1240.0 <br />188 <br />Chloride <br />mg /L <br />54 <br />150 <br />295 <br />248.12 <br />Conductivity <br />umhos /cm <br />811 <br />4351 <br />9300 <br />4090 <br />Hardness <br />mg /L <br /><MDL <br />2126 <br />5680 <br />1430.5 <br />Nitrate - Nitrite <br />mg /L <br /><MDL <br />4.27 <br />16.70 <br />0.92 <br />Oil & Grease <br />mg /L <br /><MDL <br />70.831 <br />239.00 <br /><MDL <br />pH <br />su <br />7.5 <br />8.01 <br />8.8 <br />7.5 <br />Phosphate <br />mg /L <br /><MDL <br />1.88 <br />15.48 <br />0.088 <br />ResidueFilterable -TDS <br />mg /L <br />641 <br />4111 <br />9750 <br />1270 <br />ResidueNonFilterable -TSS <br />mg /L <br /><MDL <br />3208 <br />33266 <br />11680 <br />SAR <br /><MDL <br />4.98 <br />10.30 <br />2.12 <br />Sulfate <br />mg /L <br />1 <br />781 <br />2223 <br />6460 <br />1 <br />415.22 <br />Aluminum (TREC) <br />mg /L <br /><MDL <br />13.836 <br />88.30 <br />0.12 <br />Arsenic (TREC) <br />mg /L <br /><MDL <br />0.033 <br />0.404 <br />0.013 <br />Cadmium (TREC) <br />mg /L <br /><MDL <br />0.006 <br />0.040 <br />0.004 <br />Calcium (TREC) <br />mg /L <br />61 <br />388 <br />1210 <br />373.75 <br />Copper (TREC) <br />mg /L <br /><MDL <br />0.063 <br />0.440 <br />0.26 <br />Iron (Dissolved) <br />mg /L <br />I <br /><MDLI <br />0.011 <br />0.07 <br />0.07 <br />Iron (TREC) <br />mg /L <br />0.07 <br />20.11 <br />102.00 <br />19.04 <br />Lead (TREC) <br />mg /L <br /><MDL <br />0.0679 <br />0.3860 <br />0.002 <br />Magnesium (TREC) <br />mg /L <br />24.3 <br />298 <br />770 <br />120.8 <br />Manganese (TREC) <br />mg /L <br /><MDL <br />1.02 <br />7.03 <br />0.08 <br />Mercury (TREC) <br />mg /L <br /><MDL <br />0.00006 <br />0.00029 <br />0.00012 <br />Molybdenum (TREC) <br />mg /L <br /><MDL <br />0.008 <br />0.066 <br />0.002 <br />Selenium (TREC) <br />mg /L <br />0.001 <br />0.026 <br />0.187 <br />0.003 <br />Sodium (TREC) <br />mg /L <br />124 <br />632 <br />1750 <br />185.0 <br />Zinc (TREC) <br />mg /L <br /><MDL <br />0.40 <br />2.97 <br />1 0.01 <br />The Lower C Gulch monitoring point is just above Sediment Pond C. All C Gulch flow is contained in Pond C. This point exhibited no flows <br />before the construction of the mine. The mine construction and now the mine operation provide flow to this point. <br />Baseline Information for C- Gulch -lo is derived from events beginning on 2/28/95 through 3/30/97. <br />Point influenced by mining on 3/30/97. <br />Figure No. 88 <br />Revised 05/15 <br />