2011-04-18_REPORT - C1996083 (5)

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Bowie Resources, LLC Surface Water Bowie No. 2 Mine 2010 Annual Hydrology Report Steph-low Stevens Draw - Drainage System Elevation - 7000' Summary Information Baseline Operation INITR Min AKAw nAi., A.,e RA-- Flow GPM 0.00 0.27 1.58 0 0 0 0 FieldComment No Flow No Flow No Flow No Flow h su 7.9 8.2 8.4 Conductivity umhos/cm 1020 1139 1310 Temperature Celsius 3.8 10.8 17.2 • UNITS Bicarbonate mg/L 452 495 554 Chloride 14 16 20 Conductivity 1020 1093 1180 Hardness 343 382 433 Nitrate-Nitrite 0.02 0.20 0.97 Oil and Grease j <MDL 1 4 H 8.0 8.2 8.3 Phosphate <MDL <MDL <MDL ResidueFilterable-TDS 660 718 780 ResidueNonFilterable-TSS <MDL 21 58 SAR <MDL 2.28 3.22 Sulfate mg/L 150 170 190 Aluminum mg/L 0.05 0.53 1.71 Arsenic mg/L <MDL 0.001 0.002 Cadmium mg/L <MDL <MDL <MDL Calcium mg/L 49.4 59.6 72.4 Copper mg/L <MDL 0.002 0.010 Iron (Total) mg/L 0.27 0.82 2.57 Lead <MDL <MDL <MDL Magnesium 41.3 55.9 66.2 Manganese (Total) 0.070 0.211 0.566 Mercury fl <MDL <MDL <MDL Molyebdenum <MDL <MDL <MDL Selenium <MDL 0.0002 0.001 Sodium 99.8 120.0 152.0 Zinc <MDL 0.01 0.03 The area of concern for monitoring point Steph-low has not been affected by the mining operation. Therefore, all recorded monitoring events are considered Baseline. The monitoring point location for Lower Stevens Draw is located in Stevens Draw, just below Pond 1 and Spring 14. It is accessed by a southern fork of the Stevens Draw road. • Baseline Information Collection initiated on 9/27/95 and not yet considered complete. Point Steph-low has not been influenced by mining. Initiated 9/27/1995 9!27!1995 7/1995 9/27/1995 Activated F Date 12/1/2010 9/21/2010 6/20120101 4/22/2010 Figure No. 122