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Bowie Resources Limited <br />Bowie No. 2 Mine <br />2002 Annual Hydrology Report <br />AW-3 <br />Alluvial Well <br />Top of Pipe Elevation - 5962.96' <br />Depth -150' <br />Pipe 1.76' Above Ground <br />Ground Water <br />Initiated 11/23/1996 11/23/1996 11/23/1996 11/23/1996 <br />Activated 3/27/1997 3/27/1997 3/27/1997 3/27/1997 <br />Date 11/23/2002 9/24/2002 6/19/2002 2/28/2002 <br />• <br />• <br />Summary Information <br />field <br />Parameters ~-, Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feel 90.23 92.97 95.82 0.00 81.49 91.54 87.62 0.00 87.56 87.61 <br />FieldComment <br />ph su 6.9 7.0 7.1 6.8 7.1 7,4 6.9 6.8 7.0 6.9 <br />Conductivi umhos/cm 3600 3600 3600 2400 2743 3500 2800 3300 2600 .2800 <br />Temperature Celsius 11.2 12.8 74.4 71.0 13.9 15,8 72.8 14.9 14.1 12.9 <br />Lati <br />Parameters <br />UNITS <br />Bicarbonate m /L 851 976 1100 470 665 1080 652 636 <br />Carbonate mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Chloride mg/L 119 128 736 38 59 125 57 54 <br />Conductivity umhos/cm 2800 2975 3150 2160 2701 3370 2700 2660 <br />Hardness mg/L 1280 1325 1370 <MDL 929 1440 1030 1410 <br />Nitrate-Nitdte m /L <MDL <MDL <MDL 0.05 0.83 2.35 2.15 1.43 <br />Ammonia mg/L 1.66 1.90 2.13 <MDL 0.29 2.OD <MDL <MDL <br />pH su 7.2 7.3 7.5 6.9 7.3 7.8 7.2 6.9 <br />Phosphate mg/L <MDL <MDL <MDL <MDL 0.01 0.06 0.06 <MDL <br />ResidueFilterable-TDS mg/L 2390 2415 2440 1750 2146 2310 2250 2230 <br />Sulfate m /L 870 875 880 760 997 1140 1100 1080 <br />Arsenic m /L <MDL 0.001 0.001 <MDL 0.001 0.009 <MDL <MDL <br />Cadmium m /L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Calcium mg/L 201 206 210 189 223 250 189 247 <br />Iron (Dissolved) mglL 0.79 0.33 0.46 <MDL 0.11 0.50 0.13 0.1 <br />Iron (Total) m /L 8.00 8.23 8.46 0.48 7.20 27.50 5.87 2.79 <br />Ma nesium (Dissolved) mg/L 189 197 205 136 181 799 136 193 <br />Man anese (Dissolved) mg/L 0.10 0.11 0.13 <MDL 0.03 0.11 <MDL 0.01 <br />Ma anese (Total) m /L 0.12 0.12 0.12 0.01 0.08 0.14 0.07 0.12 <br />Mercury m /L <MDL <MDL <MDL <MDL 0.0000 0.0003 <MDL <MDL <br />Selenium mg/L <MDL <MDL <MDL <MDL 0.001 0.007 0.001 0.005 <br />Sodium m /L 421 433 445 105 183 426 105 165 <br />Zinc m /L <MDL <MDL <MDL <MDL 0.01 0.04 <MDL 0.02 <br />Alluvial Wells AW-1 through A W-6 are located north of Old State Highway 133, near the entrance to the mine. <br />Baseline Information for Point AW-3 is derived from events beginning on 11/23/96 through 3/27/97. <br />Point influenced by mining on 3/27/97. <br />Monitoring Point Table 104 <br />Revised 03/04 <br />