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• <br />Bowie Resources, LLC <br />Bowie No. 2 Mine <br />B- Gulch -lo <br />Drainage System <br />Elevation - 5960 <br />Baseline - Surface Water <br />Date j 11124/2009 9/29/2009 6/15/2009 3/5/2009 <br />Summary Information - Period of Record (2/28/1995 - 11/24/2009) <br />Baseline <br />Min Ave Max <br />0.00 1.10 13.13 0 0 0 0.83 <br />Trickle only Tackle only No Flow <br />6.5 7.9 8.8 7.5 <br />730 4556 9800 4400 <br />0.5 11.9 24.6 8.4 <br />• <br />Bicarbonate Img/L 1 1 <br />Conductive <br />umhos/cm <br />10301 <br />5521 <br />9670 <br />Hardness <br />mg/L <br /><MDL <br />I, 1948 <br />3930 <br />Nitrate- Nitrite <br />mg/L <br /><MDL <br />10.91 <br />20.70 <br />Oil and Grease <br />mg/L <br /><MDL <br />29.19 <br />48.16 <br />H <br />su <br />8.0 <br />8.3 <br />8.5 <br />Phosphate <br />mg/L <br /><MDL <br />0.2 <br />0.9 <br />ResidueFllterable -TDS <br />mg/L <br />630 <br />5666 <br />10400 <br />ResidueNonFilterable -TSS <br />mg/L <br /><MDLI <br />4586 <br />34500 <br />SAR <br /><MDL <br />3.46 <br />11.40 <br />Sulfate <br />mg/L <br />270 <br />2977 <br />6620 <br />Aluminum <br />mg/L <br /><MDL <br />27 <br />148 <br />Arsenic <br />mg/L <br /><MDL <br />0.100 <br />0.476 <br />Cadmium <br />mg/L <br /><MDL <br />0.010 <br />0.04 <br />Calcium <br />mg/L <br />98 <br />286 <br />854 <br />Copper <br />mg /L <br /><MDL <br />0.1 <br />0.6 <br />Iron (Total) <br />/L <br /><MDL <br />29 <br />149 <br />Lead <br />m <br /><MDL <br />0.11 <br />0.48 <br />Magnesium <br />mg/L <br />27.2 <br />400.7 <br />773.0 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.5 <br />3.8 <br />Mercury <br />mg /L <br /><MDL <br />0.00009 <br />0.00031 <br />Molyebdenum <br />mg /L <br /><MDL <br />0.001 <br />0.01 <br />Selenium <br />mg /L <br /><MDL <br />0.123 <br />0.462 <br />Sodium <br />mg /L <br />142 <br />854 <br />1540 <br />Zinc <br />ma /L <br /><MDL <br />0.41 <br />1.70 <br />• <br />