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• <br />• <br />,/ 11 <br />u <br />Bowie Resources Limited <br />Bowie No. 1 Mine <br />2003 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 />IniBated 8/22/1985 8/22/1985 <br />Activated 10/1/1997 10/1/1997 <br />Dale 12/18/2003 6/29/2003 <br />Summary Information <br />Field' - <br />a2me a Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 18.2 26.2 32.3 0.0 28.0 45.0 31.75 28.27 <br />Water Elevation Feet 7767.7 7773.8 7781.8 7755.0 7772.0 7800.0 7768.25 7771.73 <br />Temperature Celsius 6.0 92 15.6 6.4 8.2 10.3 7.7 9.9 <br />Conductivity umhos/cm 180 267 510 220 300 560 220 255 <br />pH su 6.8 7.6 8.5 6.8 7.3 7.6 7.5 7.1 <br />Field Comments <br />P,aramete[ UNITS <br />Bicarbonate mg/L 102 165 680 117 137 198 127 117 <br />Carbonate mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MOL <br />Chloride mg/L 2 5 13 2 3 6 3 2 <br />Conductiv' umhos/cm 229 280 362 258 291 369 258 266 <br />Hardness m 2 103 139 193 108 134 182 127 121 <br />pH su 6.5 7.2 8.0 6.5 6.9 7.4 7.4 7 <br />ResidueFilterable-TDS mg/L 117 164 220 150 176 230 170 150 <br />ResidueNOnFilterable-TS mg/L 8 257 846 8 45 104 22 64 <br />SAR 0.19 0.24 0.29 0.26 0.31 0.34 0.31 0.33 <br />Sulfate mg/L <MDL 19 78 10 16 30 10 10 <br />Calcium (Dissolved) mg/L 1.9 40.4 59.0 32.5 40.8 54.6 38.9 36.6 <br />Ma nesium (Dissolved) mg/L 6.0 7.9 11.0 6.4 7.9 11.1 7.3 7.1 <br />Sodium (Dissolved) m !L 6.0 6.8 8.3 6.7 8.2 9.8 8 8.3 <br />Potassium m /L <MDL 0.4 1.9 2.2 2.2 2.2 2.2 <br />TDS Ratio (grav./talc.) 0.95 1.07 1.19 1.00 1.11 1.24 1.16 <br />Shallow monitoring wells SM-1 through SM-11 were constructed in 1985 in order to gather additional in/ormation <br />on alluviaVCOlluvial tleposits within the permit houndary. They are tlepicted on Map 4-1. <br />Baseline Information for Point SM07 is derived from events beginning on 8!22/85 through 1011/97. <br />Point influenced by mining on 10/1197. <br />Ground Water <br />Figure No. 25 <br />