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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2010 Annual Hydrology Report Steph-up <br />Stevens Draw - Drainage System <br />Elevation - 7920' <br />Initiated 7/1211995 7/12/1995 7/12/1995 7/12/1995 <br />Activated 7/1/2002 7/1/2002 7/1/2002 7/1/2002 <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 0.00 0.15 5.00 0.00 0.11 3.75 0 0 0 0 <br />FieldComment No Flow No Flow No Flow No Flow <br />ph su 7.7 7.7 7.7 <br />Conductivity umhos/cm 200 200 200 <br />Temperature Celsius 11.2 11.2 11.2 <br />• <br /> UNITS <br />Bicarbonate m /L <br />Chloride mg/L <br />Conductivity umhos/cm <br />Hardness mg/L <br />Nitrate-Nitrite mg/L <br />Oil and Grease m /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 Stevens Draw is located in Stevens Draw, just below Spring 11. It is accessed by the Stevens Draw road. <br />Baseline Information for Point Steph-up is derived from events beginning 7/12/95 through 7/1/02. <br />Point influenced by mining on 7/1/02. <br />Figure No. 124