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• <br />Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2009 Annual Hydrology Report <br />P1002 <br />East Roatcap Creek - Pond 10-2 <br />Depth - 3' <br />Elevation -8630 <br />Surface Water <br />Initiated 10/1/1991 10/1/1991 10/1/1991 10/1/1991 <br />Activated 10/1/1993 10/1/1993 10/1/1993 10/1/1993 <br />Date 11/12/2009 8/22/2009 6/18/2009 5/13/2009 <br />Summary Information <br />• <br />Field <br />Parameters Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow GPM 0.0 0.6 0.8977 0.0 8.5 78.75 0.33 0.42 1.25 5 <br />Freeboard Feet 0.0 0.0 0 0.0 0.2 3.15 0 0 0 0 <br />Temperature Celsius 0.6 10.9 24.5 1.5 8.5 14.4 10.6 <br />Conductivity umhos/cm 120 126 130 60 245 510 410 380 200 240 <br />pH su 5.8 8.0 9.8 7.7 7.8 7.9 8 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate mg/L 48 115 199 118.05 <br />Carbonate mg/L <MDL 1.2 12 <MDL <br />Chloride mg/L <MDL 27 210 2.43 <br />Conductivity umhos/cm 91 207 378 264.5 <br />Hardness mg/L 43 107 199 113.89 <br />pH su 6.8 7.8 8.4 7.53 <br />Residue Filterable-TDS mg/L 50 140 285 184 <br />ResidueNonFilterable-TSS mg/L 0.3 23 48 0.3 <br />SAR 0.13 0.24 0.379 0.21 <br />Sulfate mg/L <MDL 8.8 20 2.8 <br />Calcium (Dissolved) mg/L 11.2 23.6 44.7 24.5 <br />Magnesium (Dissolved) mg/L 3.5 11.3 21.3 12.8 <br />Sodium (Dissolved) mg/L 2.1 5.8 10.8 5.4 <br />TDS Ratio (grav./talc.) 0.74 1.1 1.49 1.11 <br />Pond 10-2 is a man made pond (approximately 30'x 20) with an earthen berm on the south side. The pond is located in the NW114SE114 <br />of Section 10, T13S, R92W. The source of the waterfor this point is from both runoff and the Overland Ditch via natural drainage. <br />(Simon Hydro Search, 92) <br />C <br />Baseline Information for Point P1002 is derived from events beginning on 10/1/91 through 10/1193. <br />Point influenced by mining on 10/1%93. <br />Figure No. 25