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Bowie Resources, LLC Bowie No. 2 Mine 2006 Annual Hydrology Report B-Gulch-lo Drainage System Elevation - 5960 Surface Water Initiated 2/28/1995 2/28/1995 2/28/1995 2/2811995 AcGvatetl 3/30/1997 3/30/1997 3/30/1997 3/30/1997 Date 11/20/2006 9/18/2008 8/14/2006 3/28/2006 Summary Information I• Baseline Operation UNITS Min Ave Max Min Ave Max Flow GPM 0 0 0 0.00 1.08 13.13 0 0 5 1.875 FieldComment No Flow No Flow h su 6.5 8.0 8.8 8.8 6.5 Conductivity umhos/cm 730 4611 9800 3860 1780 Temperature Celsius 0.5 12.8 24.6 24.6 7.8 UNITS Bicarbonate m /L 174 445 678 476.8 Chlodde mg/L 27 93 225 225.11 Contluc8vi umhos/cm 1030 5664 9870 3750 Hardness mg/L <MDL 2095 3930 1260 Nitrate-Nitrite mg/L 0.12 10.91 20.70 5.75 Oil and Grease m /L <MDL 19.70 29.40 29.4 H su 8.0 8.3 8.5 8.0 Phosphate mg/L <MDL 0.2 0.8 0.234 ResidueFilterable-TDS mg/L 830 6133 10400 3544 ResidueNonFilterable-TSS mg/L <MDL 4818 34500 246 SAR <MDL 3.36 11.40 8.51 Sulfate m /L 270 3232 6620 1331.53 Aluminum mg/L <MDL 30 148 7.40 Arsenic mg/L <MDL 0.058 0.400 0.400 Catlmium mg/L <MDL 0.009 0.04 0.04 Calcium m /L 101 307 854 161.9 Co r mg/L <MDL 0.1 0.8 0.034 Iron (Totap mglL <MDL 31 149 5.38 Lead mg/L <MDL 0.12 0.46 0.19 Magnesium mg/L 27.2 435.1 773.0 207.9 Man anew otap m /L <MDL 0.8 3.8 0.35 Mera m /L <MDL 0.0001 0.0003 0.00031 Molyebtlenum mg/L <MDL <MDL <MDL <MDL Selenium mg/L <MDL 0.123 0.462 0.462 Sodium mg/L 142 921 1540 694.3 Zinc mg/L <MDL 0.45 1.70 0.5 The Lower B Gukh monitoring point isjust above Sediment Pond B. All flows in this Gu/ch flow into this Sediment Pond. This point exhibited no flows be/ore the constNCtion o/the mine. The mine consWCtion and now the mine operation provide flow to this gu/ch. Baseline Information for B-Gulch-lo is tlerived from eveMS beginning on 2/28/95 through 3/30/97. Point iMluenced by mining on 3/30/97. Figure No. 82