2010-02-22_REPORT - C1981038 (5)

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Bowie Resources, LLC Bowie No. 1 Mine • 2009 Annual Hydrology Report P1501 East Roatcap Creek - Pond 15-1 Depth - 4' Elevation -8055 Surface Water Initiated 10/1/1991 10/1/1991 10/1/1991 10/1/1991 Activated 8/1/1994 8/1/1994 8/1/1994 8/1/1994 Date 11/12/2009 8122/2009 6/18/2009 5/13/2009 Field Parameters UNITS Summary Information Baseline Operation Min Ave Max Min Ave May Flow GPM 2.5 43 0.0 4.8 101.25 0 3 0.31 3 Freeboard Feet 0.0 0 0.0 1.4 4 4 0 0 0 Temperature Celsius V7.0 7.0 7 0.5 12.5 26.5 7.1 16.9 10.9 Conductivity umhos/c 236 280 120 399 840 220 470 310 pH su 8.1 8.1 6.8 8.0 8.4 8.2 8.1 8.2 Field Comments Empty LdU Parameters UNITS Bicarbonate mg/L 102 102 102 82 162 337 236.1 Carbonate <MDL <MDL <MDL <MDL 0.9 7.0 <MDL Chloride 2 2 2 <MDL 3.5 12.0 2.18 Conductivity umhos/cm 200 200 200 161 323 689 495.77 Hardness 90 90 90 75 166 442.1 230.28 H d 8.0 8.0 8 7. 4 8.0 8.5 8.01 ResidueFilterable-TDS 118 118 118 90 222 484 380 ResidueNonFilterable-TSS <MDL 39 83 83 SAR Sulfate 0.32 8 0.32 8 0.32 8 0.20 <MDL 0.59 16.92 1.055 35.81 0.95 20.99 Calcium Dissolved) 23.0 23.0 23 12.2 42.0 116 56.6 Magnesium (Dissolved) mg/L 8.0 8.0 8 6.8 15.4 37.02 21.6 Sodium (Dissolved) mg/L 7.0 7.0 7 4.4 17.5 51 33.6 TDS Ratio (grav./calc.) 1.08 1.08 1.08 0.93 1.03 1.13 1.02 Pond 15-1 is a man made pond (approximately 20'x 25) with an earthen dam on its south side. The pond is located in the NE114 of Section 15, T13S, R92 W. Origin of surface water was observed to be from the Overland Ditch. (Simon Hydro Search, 92) r ? ?J Baseline Information for Point Pl501 is derived from events beginning on 10/1/91 through 8/1/94. Point influenced by mining on 8/1/94. Figure No. 32