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Bowie Resources Limited <br />Bowie No. 1 Mine <br />2002 Annual Hydrology Report <br />SM02 <br />Monitoring Well SM-2 <br />Depth - 30' <br />Top of Pipe Elevation - 7550' <br />Pipe 2.5' Above Ground <br />Ground Water <br />Initiated 8/2/1985 8/2/1985 <br />Activated <br />Date 12/9/2002 6/26/20D2 <br /> <br />'I ,I <br />u <br />Summary Information <br /> Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 9.2 11.8 14.9 14.88 13.13 <br />Water Elevation Feel 7635.1 7638.6 7650.0 7635.12 7636.87 <br />Temperature Celsius 1.7 8.8 13.9 9.2 8.5 <br />Conductivit umhos/cm 310 581 989 640 730 <br />pH su 5.9 7.5 8.7 7.2 6.9 <br />Field Comments <br /> UNITS <br />Bicarbonate mg/L 266 304 345 268 342 <br />Carbonate mg/L <MDL <MDL <MDL <MDL <MDL <br />Chloride mg/L 3 8 16 9 16 <br />Conductivity umhos/cm 216 558 733 667 733 <br />Hardness m /L 99 281 376 342 376 <br />pH su 6.8 7.6 8.2 7.3 7.2 <br />ResidueFilterable-TDS mg/L 138 352 520 430 520 <br />ResidueNonFilterable-TS mg/L 6 28 96 42 6 <br />SAR 0.38 0.83 7.42 0.44 0.48 <br />Sulfate m /L 16 50 136 80 130 <br />Calcium (Dissolved) mg/L 25.0 74.9 99.7 96.7 99.70 <br />Ma nesium (Dissolved) mg/L 9.0 22.9 34.0 24.3 30.90 <br />Sodium (Dissolved) mg/L 11.0 27.5 170.0 18.6 21.20 <br />TDS Ratio ( rev./talc.) 1.03 1.09 1.17 1.1 1.03 <br />The area of concern for monitoring point SM02 has not been affected 6y the mining operation. Therefore, all recorded <br />monitoring events are consideretl8aseline. <br />Shallow monitoring wells SM-1 through SM-11 were constructed in 1985 in order to gather additional information <br />on alluvial/colluvial deposits within the permit boundary. They are depicted on Map 4-1. <br />Baseline Information Collection initialed on 8/2/85 antl not yet considered complete. <br />Point 8M02 has not been influenced by mining. <br />Monitoring Point Table 12 <br />(Revised 03/04) <br />