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Bowie Resources Limited Surface Water <br />Bowie No. 1 Mine <br />2003 Annual Hydrology Report P1108 <br />• Steven's Gulch -Pond 11-8 <br />Depth - 3' <br />Elevation -7810 <br />Summary Information <br />• <br /> <br />Initialed 5/14/1997 5/1411997 5/14/1997 5/14/1997 <br />Activated <br />Date 12/2212003 920/2003 629/2003 4125/2003 <br />Fe(d <br />P,aramele. Baseline OperaBon <br />UNITS Min Ave Max Min Ave Max <br />Flow GPM 0.0 2.4 22.5 0 0 0 0 <br />Freeboard Feet 0.0 1.8 3 3 3 3 3 <br />Temperature Celsius 02 11.3 19.2 <br />Conductivi umhoslcm 350 693 790 <br />pH su 8.0 8.4 8.8 <br />Field Comments Emp D D D <br />~._„ me UNITS <br />Bicarbonate m 2 275 292.5 310 <br />Carbonate mg/L <MDL 10 20 <br />Chloride m !L 10 10 10 <br />Conductivi umhoslcm 677 703 729 <br />Hardness mg/L 167 205 243 <br />pH su 8.4 8.45 8.5 <br />ResidueFilterable-TDS mg/L 400 400 400 <br />ResidueNOnFilterable-TS mg/L 10 10 10 <br />SAR 2.47 2.55 2.63 <br />Sulfate m IL 70 85 100 <br />Calcium (Dissolved) m /L 41.9 51.45 61 <br />Ma nesium (Dissolved) mg/L 15.1 18.5 21.9 <br />Sodium (Dissolved) m /L 72.5 82.75 93 <br />Potassium m /L 2.1 2.1 2.1 <br />TDS Ratio (grav./calc.) 0.84 0.84 0.84 <br />The area of concern for monitoring point P1108 has not been affected by the mining operation. Therefore, all recorded <br />monitoring events are considered Baseline. <br />This pond is round where a gulch opens upon a meadow and measures approximately 50' z 70'. (Hanna, 99) <br />Baseline Information Collection initiatetl on 5/14/97 and not yet considered complete. <br />Point P1108 has not been influenced Dy mining. <br />Figure No. 76 <br />