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Bowie Resources Limited <br />Bowie No. 1 Mine <br />2003 Annual Hydrology Report <br />P1501 <br />East Roatcap Creek -Pond 15-1 <br />Depth - 4' <br />Elevation -8055 <br />Summary Intortnation <br />Surface Water <br />Initiated 10/1/7991 10/1/1997 10/111991 10/1/1991 <br />Activated 8/1/1994 811/1994 8/1/1994 81111994 <br />Date 12/2212003 9/20/2003 6/30/2003 4/25/2003 <br /> <br />P.areme a ~: Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow GPM 0.0 2.5 43 0.0 7.3 101.25 0 0 0 1.3 <br />Freeboard Feel 0.0 0.0 0 0.0 1.2 4 4 4 1.23 0 <br />Temperature Celsius 7.0 7.0 7 0.5 12.0 23.2 7.g <br />Conductivi umhos/cm 180 236 280 120 440 840 260 <br />pH su 8.1 8.1 8.1 6.8 8.0 8.4 7,7 <br />Field Comments Puddle Damp Stagnant <br />P.arame e, UNITS <br />Bicarbonate m /L 102 102 102 82 141 337 <br />Carbonate mg/L <MDL <MDL <MDL cMOL cMDL <MDL <br />Chlodde mg/L 2 2 2 1 4 12 <br />Conductivi umhoslcm 200 200 200 161 283 689 <br />Hardness mg/L 90 90 90 75 129 301 <br />pH su 8.0 8.0 8 7.4 7.9 8.2 <br />ResidueFilterable-TDS m IL 118 118 118 90 168 390 <br />ResidueNonFilterable-TS mglL 6 28 60 <br />SAR 0.32 0.32 0.32 0.20 0.41 0.89 <br />Sulfate m /L 8 8 8 <MDL 17 30 <br />Calcium (Dissolved) mg/L 23.0 23.0 23 18.7 32.2 75.8 <br />Magnesium (Dissolved) m IL 8.0 8.0 8 6.8 11.8 27.1 <br />Sodium (Dissolved) mg/L 7.0 7.0 7 4.4 11.9 35.1 <br />Potassium mg/L <MDL 0.7 2.8 <br />7D5 Ratio ( rav./talc.) 1.08 1.08 1.08 <MDL 0.56 1.13 <br /> <br />Pond 1St is a man made pond (approximatety 20'x 257 with an earthen dam on its south side. The pond is located in the NE1/4 of <br />Section 15, T 135, R92 W Origin of surface water was observed to be /rom the Overland Ditch. (Simon Hydro Search, 92) <br />Baseline Information for Point Pt507 is tledved from events beginning on 10/1!91 through 8/1/94. <br />Point influenced by mining on 8/7/94. <br />Figure No. 81 <br />