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Bowie Resources Limited <br />Bowie No. 1 Mine <br />2002 Annual Hydrology Report <br />SM07 <br />Monitoring Well SM-7 <br />Depth - 55' <br />Top of Pipe Elevation - 7800' <br />Pipe 2.5' Above Ground <br />Ground Water <br />Initiated 8/22/1985 8/22/1985 <br />Activated 10/1/1997 10/1/1997 <br />Date 12/9/2002 6/26/2002 <br /> <br /> <br />Summary Information <br />Field =i ;`'l <br />Paratnef~s n { ~~'~:i Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 18.2 26.2 32.3 0.0 27.6 45.0 34.06 33.48 <br />Water Elevation Feet 7767.7 7773.8 7781.8 7755.0 7772.4 7800.0 7765.94 7766.52 <br />Temperature Celsius 6.0 9.2 15.8 6.4 8.1 10.3 7.9 9.8 <br />Conductivity umhos/cm 180 267 510 220 312 580 360 360 <br />pH su 6.8 7.6 8.5 6.8 7.3 7.6 6.8 6.8 <br />Fiefd Comments <br />~~i _~r <br />t~arameters: ` _;~:~ <br />~ <br />UNITS <br />Bicarbonate mg/L 102 165 680 119 144 198 173 198 <br />Carbonate mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Chloride m /L 2 5 13 2 3 6 6 6 <br />Conductivity umhos/cm 229 280 362 265 310 401 401 369 <br />Hardness mg/L 103 139 193 108 143 192 192 182 <br />pH su 6.5 7.2 8.0 6.5 6.8 7.0 6.8 6.6 <br />ResidueFilterable-TDS m /L 117 164 220 150 187 240 240 230 <br />ResidueNOnFilterable-TS mg/L 8 257 846 8 59 154 154 22 <br />SAR 0.19 0.24 0.29 0.26 0.30 0.34 0.3 0.32 <br />Sulta[e m /L <MDL 19 78 10 20 30 30 30 <br />Calcium (Dissolved) m /L 1.9 40.4 59.0 32.5 43.6 59.2 59.2 54.6 <br />Ma nesium (Dissolved) mg/L 6.0 7.9 11.0 6.4 8.3 11.1 10.7 11.1 <br />Sodium (Dissolved) mg/L 6.0 6.8 8.3 6.7 8.3 9.8 9.5 9.8 <br />TDS Ra[io (grav./talc.) 0.95 1.07 1,19 1.00 1.09 1.24 1.09 1 <br />Shallow monitoring wells SM-1 through SM-11 were constructed in 1985 in order to gather additional information <br />on alluviaVCOlluvial deposits within the permit boundary. They are depicted on Map 4-1. <br />Baseline Intormation for Point SM07 is delved from events beginning on 8!22/85 through 10/1/97. <br />Point influenced by mining on 10/1/97. <br />Monitoring Point Table 18 <br />(Revised 03/04) <br />