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Bowie Resources Limited <br />Bowie No. 2 Mine <br />2002 Annual Hydrology Report <br />AW-6 <br />Alluvial Well <br />Top of Pipe Elevation - 5981.18' <br />Depth -112' <br />Pipe 7.38' 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 6/18/2002 2/28/2002 <br />• <br />Summary Information <br />Field <br />Parameters - Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 52.62 54.37 56.82 0.00 52.07 58.61 56.92 58.61 57.30 57.64 <br />FieldComment <br />ph su 7.3 7.4 7.4 7.0 7.3 7.7 7.0 7.1 7.0 7.1 <br />Conductivi umhos/cm 4600 4650 4700 3300 4539 5500 5300 5500 5500 5200 <br />Temperature Celsius 72.4 13.5 14.6 11.7 14.2 17.8 12.8 14.6 15.5 13.3 <br />Cab' <br />Parameters. <br />UNITS <br />Bicarbonate mg/L 278 317 355 332 379 416 416 <br />Carbonate m /L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Chloride mg/L 107 114 120 63 93 140 140 <br />Conductivity umhos/cm 2580 3305 4030 3670 4312 5130 5130 <br />Hardness mg/L 1880 1925 1970 <MDL 1357 2350 2350 <br />Nitrate-Nitrite mg/L 7.3 8.1 8.8 1.2 6.8 9.0 9 <br />Ammonia m /L 0.07 0.07 0.07 <MDL 0.1 0.2 <MDL <br />pH su 7.5 7.6 7.7 7.3 7.6 7.9 7.7 <br />Phosphate m /L <MDL <MDL <MDL <MDL 0.00 0.03 <MDL <br />ResidueFilterable-TDS mg/L 3910 3995 4080 3390 4117 4970 4970 <br />Sulfate m /L 2300 2300 2300 7740 2339 3060 3060 <br />Arsenic m /L <MDL <MDL <MDL <MDL 0.0002 0.002 0.002 <br />Cadmium mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Calcium mg/L 248 254 260 202 246 310 310 <br />Iron (Dissolved) m /L <MDL 0.14 0.27 <MDL 0.04 0.20 0.05 <br />Iron (Total) mg/L 0.26 0.31 0.37 0.07 1.05 4.74 0.07 <br />Ma nesium (Dissolved) mg/L 307 315 322 248 308 383 383 <br />Manganese (Dissolved) mg/L 0.07 0.18 0.29 <MDL 0.03 0.21 <MDL <br />Manganese (Total) m IL 0.17 0.20 0.29 <MDL 0.11 0.35 <MDL <br />Mercury mg/L <MDL <MDL <MDL <MDL 0.0001 0.0007 0.0004 <br />Selenium mg/L 0.05 0.06 0.06 0.038 0.047 0.054 0.052 <br />Sodium mg/L 501 514 526 424 489 584 584 <br />Zinc mg/L <MDL 0.05 0.71 <MDL 0.01 0.07 0.07 <br />Alluvial Welfs AW-1 through AW-6 are located north o(O/d State Highway 733, near the entrance to the mine. <br />Baseline Information for Point AW-6 is tledved from events beginning on 11/23/96 through 3/27/97. <br />Point influenced by mining on 3/27/97. <br />Monitoring Point Table 107 <br />Revised 03104 <br />