2008-05-01_REPORT - C1996083 (7)

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~~ Bowie Resources, LLC Bowie No. 2 Mine 2007 Annual Hydrology Report S-4a Terror Creek -Spring 4a Elevation - 7910 Surface Water Initiated 11/9/1995 11/9/1995 11/9/1995 11/9/1995 Activated 1/15/2001 1/15/2001 1/15/2001 1/15/2001 Date 11/21/2007 9/26/2007 6/27/2007 3/27/2007 / 11 u • Summary Information Baseline Operation Min Ave Max Min Ave Max Flow GPM 0.30 0.72 1.88 0.00 0.58 1.50 1.25 0.63 0.75 0.31 FieldComment h su 7.2 7.8 8.5 6.3 7.2 7.8 7.8 7.3 7.2 7.3 Conductivity umhos/cm 200 239 280 200 257 290 250 200 220 260 Temperature Celsius 2.4 7.4 14.2 4.4 6.4 8.1 6.8 6.5 6.7 4.4 Field Parameters UNITS Lab Parameters UNITS Bicarbonate mg/L 146 146 146 Chloride mg/L 2 2 2 Conductivity umhoslcm 289 289 289 Hardness mg/L 125 125 125 Nitrate-Nitrite mg/L 0.16 0.16 0.16 Oil and Grease mg/L <MDL <MDL <MDL pH su 7.30 7.30 7.30 Phosphate mg/L 0.08 0.08 0.08 ResidueFilterable-TDS mg/L 200 200 200 ResidueNonFilterable-TSS mg/L <MDL <MDL <MDL SAR 0.49 0.49 0.49 Sulfate mg/L 13 13 13 Aluminum mg/L 0.88 0.88 0.88 Arsenic mg/L <MDL <MDL <MDL Cadmium mg/L <MDL <MDL <MDL Calcium mg/L 43.10 43.10 43.10 Copper m /L <MDL <MDL <MDL Iron (Total) mg/L 1.23 1.23 1.23 Lead mg/L <MDL <MDL <MDL Magnesium mg/L 4.30 4.30 4.30 Manganese (Total) m /L 0.02 0.02 0.02 Mercury mg/L <MDL <MDL <MDL Molyebdenum mg/L <MDL <MDL <MDL Selenium mg/L <MDL <MDL <MDL Sodium mg/L 12.5 12.5 12.5 Zinc mg/L 0.03 0.03 0.03 The monitoring point for S-4a is located along an unmarked road in an un-named gulch leading down from the broad ridge that separates Sheep Corral and Freeman Gulches from Terror Creek. This spring feeds P-4. Baseline Information for Point S-4a is derived from events beginning on 11/9/95 through 1/15/01. Point influenced by mining on 1/15/01. Figure No. 15