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• Bowie Resources Limited Bowie No. 2 Mine 2003 Annual Hydrology Report S-1 B Gulch -Spring 1 Elevation - 6990 Surface Water lnitiatetl 6/12/7995 6/12/1995 6/12!1995 6/12/1995 Activated 3!3011997 3/3011997 3/30/1997 3/30/1997 Date 12/4/2003 9/1812003 61242003 a282003 `f 1 J Summary Information l=ie` P,a"rameters Baseline Operation UNITS Min Ave Max Min Ave Max Flow GPM 0.00 0.38 1.25 0,00 0.06 0.75 0 0 0 0 fieidComment Dry D Dry D ph su 8.4 8.6 8.7 8.1 8.3 8.5 Conductivity umhos/cm 1520 2053 2300 2000 2067 2200 Temperature Celsius 2.4 10.5 17.1 12.8 17.2 20.1 ~.. P,aramete UNITS Bicarbonate mg/L 784 784 784 Chloride mg/L 28 28 28 Conductivi umhos/cm 2140 2140 2140 Hardness mg/L 570 570 570 Nttrate-Nitdte mg/L cMDL cMDL <MDL Oil and Grease mg/L <MDL <MDL <MDL pH su 7.5 7.5 7.5 Phosphate mg/L <MDL <MDL <MDL ResidueFilterable-TDS mg/L 1480 1480 1480 ResidueNOnFilterable-TS mg/L 30 30 30 SAR 5.66 5.66 5.66 Sulfate mg/L 490 490 490 Aluminum mglL 0.89 0.89 0.89 Arsenic m /L <MDL <MDL <MDL Cadmium m /L <MDL <MDL <MDL Calcium m !L 52 52 52 Copper m /L <MDL <MDL <MDL Iron (Total) m /L 1.01 1.01 1.01 Lead mg/L <MDL <MDL <MDL Ma nesium m /L 107 107 107 Man anese (Total) m /L 0.017 0.017 0.017 Mercu m 2 <MDL <MDL <MDL Molyebdenum m /L <MDL <MDL <MDL Selenium mg/L 0.002 0.002 0.002 Sodium mg/L 307 307 307 Zinc mg/L 0.01 0.01 0.01 The S-1 monitoring point location is along the Stevens Draw road where rt crosses B Gulch. Thr's spring is located on the upper srde o/ the road, discharges along the road and eventually contributes its Flow through Sediment Pond B. Baseline Information for Point S-1 is derived from events beginning on 6112/95 through 3130/97. Point influenced by mining on 320/97. Figure No. 7