2008-05-01_REPORT - C1996083 (7)

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Bowie Resources, LLC Bowie No. 2 Mine 2007 Annual Hydrology Report S-1 B Gulch -Spring 1 Elevation - 6990 Surface Water Initiated 6/12/1995 6/12/1995 6/12/1995 6/12/1995 Activated 3/30/1997 3/30/1997 3/30/1997 3/30/1997 Date 11/26/2007 9/24/2007 7/1/2007 3/14/2007 I I, ~J Summary Information Field Parameters Baseline Operation UNITS Min Ave Max Min Ave Max Flow GPM 0.00 0.38 1.25 0.00 0.04 0.75 0 0 0 0 FieldComment Dry Dry Dry Damp h 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 Lab Parameters UNITS Bicarbonate mg/L 784 784 784 Chloride mg/L 28 28 28 Conductivity umhos/cm 2140 2140 2140 Hardness mg/L 570 570 570 Nitrate-Nitrite mg/L <MDL <MDL <MDL Oil and Grease mg/L <MDL <MDL <MDL H su 7.5 7.5 7.5 Phosphate mg/L <MDL <MDL <MDL ResidueFilterable-TDS mg/L 1480 1480 1480 ResidueNonFilterable-TSS mg/L 30 30 30 SAR 5.66 5.66 5.66 Sulfate m /L 490 490 490 Aluminum mg/L 0.89 0.89 0.89 Arsenic mg/L <MDL <MDL <MDL Cadmium mg/L <MDL <MDL <MDL Calcium mg/L 52 52 52 Cop er mg/L <MDL <MDL <MDL Iron (Total) mg/L 1.01 1.01 1.01 Lead mg/L <MDL <MDL <MDL Magnesium mg/L 107 107 107 Manganese (Total) m /L 0.017 0.017 0.017 Mercu mg/L <MDL <MDL <MDL Molyebdenum mglL <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 it crosses 8 Gulch. This spring is located on the upper side of the road, discharges along the road and eventually contributes its flow through Sediment Pond 8. Baseline Information for Point S-1 is derived from events beginning on 6/12/95 through 3/30/97. Point influenced by mining on 3/20/97. Figure No. 7