2008-05-01_REPORT - C1996083 (7)

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Bowie Resources, LLC Bowie No. 2 Mine 2007 Annual Hydrology Report S-5a Sheep Corral -Spring 5A Elevation - 7860 Surface Water Initiated 9/27/1995 9/27!1995 9/27!1995 9/27/1995 Activated 12/1/2001 12/1!2001 12/1/2001 12/1/2001 Date 11/21/2007 9/26/2007 6/27/2007 3/27/2007 • • Field Parameters UNITS Summary Information Baseline Operation Min Ave Max Min Ave Max Flow GPM 0.13 0.89 4.30 0.00 0.39 1.90 0 0 0 0 FieldComment Dry Dry Dry Dry ph su 6.9 7.4 8.0 7.0 7.2 7.6 Conductivity umhos/cm 160 301 400 340 381 420 Temperature Celsius 4.0 6.7 9.1 5.1 6.6 7.8 Lab Parameters UNITS Bicarbonate m /L 184.00 185.00 186.00 Chloride mg/L 2.00 2.00 2.00 Conductivity umhos/cm 388 391 393 Hardness mg/L 125.00 128.00 131.00 Nitrate-Nitrite mg/L <MDL 0.03 0.05 Oil and Grease mg/L <MDL <MDL <MDL pH su 6.90 7.40 7.90 Phosphate mg/L <MDL <MDL <MDL ResidueFilterable-TDS mg/L 190.00 205.00 220.00 ResidueNonFilterable-TSS mg/L <MDL 17.00 34.00 SAR 1.10 1.11 1.12 Sulfate mg/L 21.00 25.00 29.00 Aluminum mglL <MDL 0.34 0.69 Arsenic mg/L <MDL <MDL <MDL Cadmium mg/L <MDL <MDL <MDL Calcium m /L 37.80 38.70 39.60 Co per m /L <MDL <MDL <MDL Iron (Total) mg/L 0.02 0.48 0.95 Lead mg/L <MDL <MDL <MDL Magnesium mg/L 7.50 7.70 7.90 Manganese (Total) mg/L <MDL 0.019 0.037 Mercury mg/L <MDL <MDL <MDL Molyebdenum mg/L <MDL <MDL <MDL Selenium mg/L <MDL <MDL <MDL Sodium mg/L 28.10 28.60 29.10 Zinc mg/L 0.02 0.02 0.02 The monitoring point location for S-5a is located along an unmapped road which is down an un-named gulch which leads into Sheep Corral Gulch. This spring feeds Pond 5. Baseline Information for Point S-5a is derived from events beginning on 9/27/95 through 12/1/01. Point influenced by mining on 1211101. Figure No. 19