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J Bowie Resources, LLC Bowie No. 2 Mine 2005 Annual Hydrology Report B-Gulch-lo Drainage System Elevation - 5960 Surface Water Initiated 2/28/1995 2/28/1995 2/28/1995 2/28!1995 Activatetl 3/30/1997 3/30/1997 3/30/1997 3/30/1997 Date 12/29/2005 9/28/2005 6/27/2005 3/18/2005 Summary Information ~~ • a cm gg}+`; '1i 8, '>i~+ ~ti€' Baseline Operation UNITS Min Ave Max Min Ave Max Flow GPM 0 0 0 0.00 1.01 13.13 3 0 0 0 FieldComment No Flow No Flow No Flow h su 6.5 8.1 8.8 6.5 Contluaivity umhas/cm 730 4887 9800 1720 Temperature Celsius 0.5 12.3 24.2 3.5 s t ~ sa ~ F.rz s a, , ',-- UNITS Bicarbonate m /L 174 442 878 174 Chloride mg/L 27 76 217 217 ConduIXivity umhos/cm 1030 5904 9870 1830 Hardness mg/L <MDL 2200 3930 2770 Nitrate-Nitrite mglL 0.12 11.55 20.70 2.35 Oil and Grease m /L <MDL 10.00 10.00 <MDL H su 8.2 8.3 8.5 8.2 Phosphate mg/L <MDL 0.2 0.8 0.8 ResidueFilterable-TDS mg/L 830 6456 10400 1220 ResidueNonFilterable-TSS mg/L <MDL 5390 34500 7140 SAR <MDL 2.72 11.40 2.01 Sulfate m L 270 3470 6620 460 Aluminum mg/L <MDL 32 148 103.00 Arsenic mg/L <MDL 0.015 0.081 0.042 Cadmium mg/L <MDL 0.003 0.02 <MDL Calcium m /L 101 325 854 854 Ca er mg/L <MDL 0.1 0.6 0.2 Iron (Total) mg/L <MDL 35 149 119.00 Lead mg/L <MDL 0.11 0.48 0.389 Magnesium mg/L 27.2 483.5 773.0 155.0 Man anese (rota!) m /L <MDL 0.8 3.8 3.75 Mercu m /L <MDL 0.0000 0.0003 <MDL Molyebdenum mg/L <MDL <MDL <MDL <MDL Selenium mg/L <MDL 0.074 0.140 <MDL Sodium mg/L 142 949 1540 240.0 Zinc mg/L <MDL 0.44 1.70 1.7 The Lower B Gulch monifohng point is just above Sediment Pond 8. All flows in this Gulch Flow into this Sediment Pond. This point exhibited no /lows before the construction of the mine. The mine construction and now the mine operation provide flow to this gulch. Baseline Information for B-GulU-lo is tlerived from evems beginning on 2/28/95 through 3/30/97. Point influenced by mining on 3/30/97. Figure No. 81