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• <br />Bowie Resources, LLC <br />Bowie No. 2 Mine <br />2010 Annual Hydrology Report <br />C-Gulch-up <br />Drainage System <br />Elevation - 7120' <br />Surface Water <br />Initiated 2/28/1995 2/28/1995 2/28/1995 2/28/1995 <br />Activated 3/30/1997 3/30/1997 3/30/1997 3/30/1997 <br />Date 12/1/2010 9/21/2010 6/20/2010 4/22/2010 <br />Summary Information <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow GPM 0 0 0 0.0 0.0 0.0 0 0 0 0 <br />FieldComment Dry No Flow No Flow No Flow <br />ph d 7.7 7.7 7.7 <br />Conductivity 4800 4800 4800 <br />Temperature 18.6 18.6 18.6 <br />• <br />C: <br />s UNITS <br />Bicarbonate mg/L <br />Chloride mg/L <br />Conductivity umhos/cm <br />Hardness mg/L <br />Nitrate-Nitrite mg/L <br />Oil and Grease mg/L <br />pH su <br />Phosphate mg/L <br />ResidueFilterable-TDS mg/L <br />ResidueNonFilterable-TSS mg/L <br />SAR <br />Sulfate mg/L <br />Aluminum mg/L <br />Arsenic mg/L <br />Cadmium mg/L <br />Calcium mg/L <br />Copper mg/L <br />Iron (Total) mg/L <br />Lead mg/L <br />Magnesium mg/L <br />Manganese (Total) mg/L <br />Mercury mg/L <br />Molyebdenum mg/L <br />Selenium mg/L <br />Sodium mg/L <br />Zinc mg/L <br />The monitoring point for Upper C Gulch is just above the mine portals. C Gulch directs all stormwater to Sediment Pond C. <br />Baseline Information for C-Gulch-up is derived from events beginning on 2/28/95 through 3130/97. <br />Point influenced by mining on 3/30/97. <br />Figure No. 90