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Bowie Resources Limited <br />Bowie No. 1 Mine <br />2002 Annual Hydrology Report <br />SM11 <br />Monitoring Well SM-17 <br />Depth - 46.5' <br />Elevation - 7242.65 <br />Ground Water <br />Initiated 8/8/1986 8/8/1986 <br />Activated <br />Date 12I9I2002 6/2612002 <br />I i <br /> <br />Summary Information <br /> Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 30.4 36.2 87.8 36.08 38.05 <br />Water Elevation Feel 7154.9 7206.4 7212.3 7206.57 7204.6 <br />Temperature Celsius 5 10.6 20.0 9 10.9 <br />Conductivity umhos/cm 1400 1880 2600 2400 2300 <br />pH su 5.8 7.6 8.5 7.5 7.5 <br />Field Comments <br /> UNITS <br />Bicarbonate mg/L 207 1197 1570 1080 1160 <br />Carbonate mg/L <MDL <MDL <MDL <MDL <MDL <br />Ghlodde m /L 22 44 85 56 55 <br />Conductivity umhos/cm ~ 1730 2145 2460 2370 2210 <br />Hardness mg/L 182 291 507 332 316 <br />pH su 7.4 7.8 8.2 7.7 7.7 <br />ResidueFilterable-TDS m /L 1190 1418 1640 1550 1480 <br />ResidueNOnFilterable-TS m /L 6 81 518 22 20 <br />SAR 5.6 12.0 15.1 11.1 11.6 <br />Sulfate mg/L <MDL 119 543 130 80 <br />Calcium (Dissolved) mg/L 30 46.9 83.8 57 51.3 <br />Magnesium (Dissolved) mg/L 6 40.9 73.0 46.1 45.7 <br />Sodium (Dissolvetl) m /L 182 446.6 549.0 459 470 <br />TDS Ratio (grav./talc.) 0.95 1.03 1.11 1.11 1.06 <br />The area of concern (or monitoring point SMf 1 has not been affected by the mining operation. Therefore, all recorded <br />monitoring events are considered Baseline. <br />Shallow monitodng wells SM-1 through SM-11 were constructed in 1985 in order to gather additional information <br />on alluvialfcolluvialcteposits within the permit boundary. They are depicted on Map 4-1. <br />Baseline Information Collection initiated on 6/8/86 and not yet considered complete. <br />Point SM11 has not been influencetl by mining. <br />Monitoring Point Table 19 <br />(Revised 03/04) <br />