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1f l1 u Bowie Resources Limited Bowie No. 2 Mine 2002 Annual Hydrology Report DH-SSa Freeman Gulch -Drill Hole Pipe Elevation - 7882.7 Pipe 2.5' above ground Depth -1840' Ground Water Initiated 7/21/1999 7/21/1999 Activated 10/15/2007 1D/15/2001 Dale 12/17/2002 9/19/2002 ~~ Summary Information !!t. a Baseline Operation UNITS Min Ave Max Min Ave Max Static Water Leval Feet 0 253.54 405.3 435.4 509.85 584.3 584.3 435.4 FieldComment ph su 9.3 10.174 11.19 9.81 10.055 10.3 9.81 10.30 Conductivity umhos/cm 485 519.8 552 523 559 595 523 595 Temperature Celsius 11.2 14.06 17.8 13.1 13.65 14.2 13.1 14.2 a fl UNITS Bicarbonate m /L 116 140.25 156 <MDL <MDL <MDL <MDL Carbonate mg/L 31 49.2 64.8 113 113 113 113 Chloride m /L 6 9.25 12 17 17 17 17 Conductivi umhos/cm 555 564.75 575 4100 4100 4100 4100 Hardness mg/L <MDL 14 36 Nitrate-Nitrite mg/L 0.03 0.19 0.48 0.09 0.09 0.09 0.09 Ammonia m /L 1.18 1.5667 2.26 2.9 2.9 2.9 2.9 pH su 8.56 9.015 9.5 12 12 t2 12 Phosphate m /L <MDL 0.06 0.09 <MDL <MDL <MDL <MDL ResidueFilterable-TDS mg/L 330 350 360 980 980 980 980 Sulfate m /L 64 86 100 20 20 20 20 Arsenic m /L <MDL 0.001 0.002 <MDL <MDL <MDL <MDL Cadmium m /L <MDL 0.0004 0.0016 <MDL <MDL <MDL <MDL Calcium m /L 6.1 8.375 11 310 310 310 310 Iron (Dissolved) m /L <MDL 0.2375 0.61 <MDL <MDL <MDL <MDL Iron (Total) mg/L 1.1 15.225 31.4 1.18 1.18 1.16 1.18 Magnesium m 7L 0.5 1.05 2 <MDL <MDL <MDL <MDL Manganese (Dissolved) m /L <MDL 0.0175 0.054 <MDL <MDL <MDL <MDL Manganese (Total) mg/L 0.054 0.079 0.112 0.008 0.008 0.008 0.008 Mercu mg/L <MDL 0.0002 0.0006 0.0003 0.0003 0.0003 0.0003 Selenium mg/L <MDL <MOL <MDL <MDL <MDL <MDL <MDL Sodium mg/L 107 120.75 131 58.7 58.7 58.7 58.7 Zinc m /L <MDL 0.078 0.182 0.09 0.09 0.09 0.09 Baseline Information for Point DH58a is derived from events beginning on 7/21/99 through 10/15/2001. Point influenced by mining on 10/15/01. Monitoring Point Table 95 Revised 03/04