2011-04-18_REPORT - C1996083 (5)

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Bowie Resources, LLC Bowie No. 2 Mine 2010 Annual Hydrology Report SW-04 Morrell Cow Camp Elevation - 7880 Surface Water Initiated 5/1611983 5/1611983 5/16/1983 5/16/1983 Activated Date 12/15/2010 9/1312010 6/30/2010 4/2812010 Summary Information Baseline Operation JNITS Min Ave Max Min Ave Max Flow US 0.001 0.065 0.600 0.0167 0.0084 0.0067 0.0033 Water Level in Flume Feet 0.50 0.54 0.58 Temperature Celsius 0 11 20 0.9 9.6 16.2 9.:? Conductivity umhos/cm 39 205 438 320 290 210 200 pH su 7.0 8.1 9.1 8.5 8.5 8.0 7.9 Field Comments 1 UNITS B mg/L 41.0 110.7 168.4 134.9 mg/L <MDL 4 27 2723 umhos/cm 68 200 353 353 256 252 mg/L 35 74 130 100.85 Acidity mg/L 2.46 3.41 4.00 3.76 2.46 4 Nitrate-Nitrite m /L 0.82 0.82 0.82 0.82 Oil and Grease mg/L <MDL <MDL <MDL <MDL pH su 7.0 7.7 8.1 8.1 8.0 7.6 Phosphate mg/L 0.06 0.06 0.06 0.06 ResidueFilterable-TDS m /L 66 127 185 158 182 160 ResidueNonFilterable-TSS mg/L <MDL 22 90 8 <MDL 4 SAR 0.15 0.67 1.25 1.13 Sulfate mg/L <MDL 13 41 9.87 Aluminum (Total) mg/L 0.221 0.221 0221 0.221 Arsenic (Total) m /L 0.009 0.009 0.009 0.009 Cadmium (Total) mg/L 0.01 0.01 0.01 0.01 Calcium (Total) mg/L 29.47 29.47 29.47 29.47 Copper (Total) mg/L 0.01 0.01 0.01 0.01 Iron (Dissolved) mg/L 0.01 0.06 0.11 0.01 0.06 0.11 Iron (Total) mg/L 0.11 0.33 0.62 0.11 0.25 0.62 Lead (Total) mg/L 0.05 0.05 0.05 0.05 Magnesium (Total) mg/L 1.00 433 7.00 6.62 Manganese (Total) mg/L 0.01 0.03 0.06 0.06 0.03 0.01 Mercury (Total) mg/L 0.0001 0.0001 0.0001 0.0001 Molybdenum (Total) mg/L 0.004 0.004 0.004 0.004 Selenium Total mg/L <MDL <MDL <MDL <MDL Sodium (Total) mg/L 26.32 26.32 26.32 26.32 Zinc (Total) mg/L 0.01 0.01 0.01 0.01 The area of concern for monitoring point SW-04 has not been affected by the mining operation. Therefore, all recorded monitoring events are considered Baseline. 0 is • Baseline Information Collection initiated on 5/16/83 and not yet considered complete. Point SW-04 has not been influenced by mining. Figure No. 127