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Bowie Resources Limited <br />Bowie No. 2 Mine <br />2002 Annual Hydrology Report <br />C-Gulch-lo <br />Drainage System <br />Elevation - 5960 <br />Surface Water <br />Initiated 2/28/1995 2/28/1995 2/28/1995 2/28/1995 <br />Activated 3/30/1997 3/30/1997 3/30/1997 3/30/1997 <br />Date 11/23/2002 9/24/2002 6/24/2002 4!30/2002 <br />Summary Information <br /> <br />i t~ ;: 's*+' • s 1' <br />P::arameteiA~ ... __° `~'~:_ ° Baseline Operation <br />UNITS Min Ave Max Min Ave Maz <br />Flow GPM 0 0 0 0.0 13.3 240.0 0.00 240.00 5.60 3.60 <br />FieldComment Dry <br />ph su 7.0 8.1 8.9 8 8 8 <br />Conductivity umhos/cm 550 3542 6400 3400 2100 3800 <br />Temperature Celsius 0.2 10.9 19.2 13.7 19.2 9.1 <br />Cab .~....-rz,.,t __ .~. _..° <br />;.. rairiete' .... .._ ~ <br />UNITS <br />Bicarbonate mg/L 433 511 608 525 <br />Chloride m /L 54 106 283 85 <br />Conductivi umhos/cm 2050 4403 9300 2050 <br />Hardness m /L <MDL 1680 3970 269 <br />Nitrate-Nitrite mg/L 0.05 3.09 12.40 11.6 <br />Oil & Grease mg/L <MDL <MDL <MDL <MDL <br />pH su 7.5 8.1 8.8 8.8 <br />Phosphate mg/L <MDL 0.68 4.65 4.65 <br />ResidueFilterable-TDS mg/L 1390 4329 9750 1390 <br />ResidueNonFilterable-TS mg/L <MDL 331 1420 1420 <br />SAR <MDL 4.29 10.30 9.96 <br />Sulfate m /L 260 2413 6460 260 <br />Aluminum m /L <MDL 3.35 15.30 15.3 <br />Arsenic mg/L <MDL 0.001 0.003 0.003 <br />Cadmium m /L <MDL <MDL <MDL <MDL <br />Calcium mg/L 67 237 364 60.9 <br />Copper m /L <MDL 0.005 0.050 0.05 <br />Iron (Total) mg/L 0.07 2.96 10.50 10.5 <br />Lead mg/L <MDL 0.0034 0.02x0 0.024 <br />Ma nesium m /L 48 299 770 47.7 <br />Man anese (Total) mg/L <MDL 0.07 0.18 0.101 <br />Mercury mglL <MDL 0.0000 0.0002 <MDL <br />Molyebtlenum m /L <MDL <MDL <MDL <MDL <br />Selenium mg/L 0.001 0.015 0.120 0.001 <br />Sodium mg/L 225 585 1460 225 <br />Zinc mg/L <MDL 0.04 0.19 0.19 <br />The Lower C Gulch monitoring point is just above Sediment Pond C. All C Gulch flow is contained in Pond C. This point exhibited no flows <br />before the construction of the mine. The mine construction and now the mine operation provide flow to this point. <br />Baseline Information far C-Gulch-lo is dedved from events beginning on 2/28/95 through 3/30/97. <br />Point influenced by mining on 3/30/97. <br />Monitoring Point Table 62 <br />Revised 03/04 <br />