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Bowie Resources, LLC Surtace Water <br />Bowie No.1 Mine <br />2007 Annual Hydrology Report S1010 <br />East Roatcap Creek -Spring 10-10 <br />Elevation - 8650 <br />Initiated 6/1/1992 6/1/1992 6/1/1992 6/1/1992 <br />Activated 10/1/1993 10/1/1993 10/1/1993 10/1/1993 <br />Date 11/15/2007 8/23/2007 6/20/2007 4/26!2007 <br />Summary Information <br />C, <br />• <br />Field <br />Parameters Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow GPM 0.0449 0.20 0.45 0 0.98 18.80 0 0 0 0 <br />Temperature Celsius 5.0 12.9 23.2 <br />Conductivity umhos/cm 160 188 215 70 238 470 <br />pH su 6.8 7.75 8.30 <br />Field Comments No Flow No Flow No Flow No Flow <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate mg/L 45 78 110 <br />Carbonate mglL <MDL <MDL <MDL <br />Chloride mg/L 2 2 2 <br />Conductivity umhos/cm 87 149 210 <br />Hardness mg/L 43 71 99 <br />H su 7.8 7.9 8.0 <br />ResidueFilterable-TDS mg/L 80 92 104 <br />ResidueNonFilterable-TSS mg/L 18 18 18 <br />SAR 0.19 0.20 0.22 <br />Sulfate mg/L 6 6 6 <br />Calcium (Dissolved) m /L 10.8 16.9 23.0 <br />Magnesium Dissolved) mg/L 3.8 6.9 10.0 <br />Sodium (Dissolved) mg/L 2.9 4.0 5.0 <br />TDS Ratio (grav./talc.) <br />Spring 10.10 is located in the NW1/4SE1/4 of Section 10, T13S, R92W. This spring was not observed to be developed. <br />'A small seep occurs along the jeep trail between Ponds 10-2 and Pond 10-3 at an elevation of approximately 8560 feet. Flow was <br />observed but too low to measure or sample. Vegetation consisted of green mosses and grasses. " (Simon Hydro Search, 92) <br />Baseline Information for Point S1010 is derived from events beginning on 611/92 through 11/1/93. <br />Point influenced by mining on 10/1/93. <br />Figure No. 17 <br />