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I• <br />Bowie Resources Limited <br />Bowie No. 2 Mine <br />2002 Annual Hydrology Report <br />AW-5 <br />Alluvial Well <br />Top of Pipe Elevation - 5982.14' <br />Depth -100' <br />Pipe 1.14' 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 />Summary Information <br />Field <br />Parameters . d:r Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 51.65 52.95 55.26 44.21 53.20 55.72 51.41 54.79 53.84 54.12 <br />FieldComment <br />ph su 7.1 7.2 7.3 6.9 7.1 7.4 6.9 6.9 6.9 6.9 <br />Conductivity umhos/cm 4700 5450 6200 3100 5826 6800 5400 5200 5400 5200 <br />Temperature Celsius 12.8 13.7 14.6 12.4 14.6 16.9 13.6 15.0 15.9 13.6 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate m /L 566 658 750 670 724 772 769 <br />Carbonate mg/L <MDL <MDL <MDL <MDL cMDL <MDL <MDL <br />Chloride mg/L 49 51 52 29 45 75 75 <br />Conductivity umhos/cm 4270 4890 5510 4660 5785 6560 5020 <br />Hardness mg/L 3330 3380 3430 <MDL 2313 3800 3010 <br />Nitrate-Nitrite mg/L 34.4 35.2 36.0 2.51 27.18 46.70 41.2 <br />Ammonia mg/L 0.10 0.11 0.13 <MDL 0.1 0.6 <MDL <br />pH su 7.2 7.4 7.6 7.1 7.4 7.9 7.6 <br />Phosphate mg/L <MDL <MDL <MDL <MDL 0.01 0.04 0.03 <br />ResidueFilterable-TDS mg/L 5390 5580 5770 4100 5942 6760 4830 <br />Sulfate mg/L 3140 3385 3630 1840 3588 4550 2990 <br />Arsenic mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Cadmium mg/L <MDL <MDL cMDL <MDL 0.0005 0.0050 cMDL <br />Calcium mg/L 291 298 305 222 310 335 323 <br />Iron (Dissolved) mg/L <MDL 0.03 0.06 <MDL 0.01 0.05 <MDL <br />Iron (Total) m /L 0.10 0.11 0.12 <MDL 0.37 0.65 <MDL <br />Ma nesium (Dissolved) mg/L 633 642 650 464 642 731 537 <br />Manganese (Dissolved) mg/L <MDL 0.01 0.02 <MDL 0.001 0.01 <MDL <br />Manganese (Total) mg/L 0.01 0.01 0.02 <MDL 0.001 0.01 <MDL <br />Mercury mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Selenium mg/L 0.03 0.03 0.03 0.017 0.024 0.027 0.017 <br />Sodium mg/L 523 531 539 355 524 620 355 <br />Zinc mglL <MDL 0.01 0.03 <MDL 0.01 0.05 <MDL <br />Alluvial Wells AW-1 through A W-6 are located north of Old State Highway 133, near the entrance to the mine. <br />Baseline Information for Point AW-5 is derived from events he9inning on 11/23/96 through 3/27/97. <br />Point influenced by mining on 3/27197. <br />Monitoring Point Table 106 <br />Revised 03/04 <br />