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Bowie Resources Limited Surface Water <br />Bowie No. 1 Mine <br />2003 Annual Hydrology Report P1009 <br />East Roatcap Creek -Pond 10-9 <br />Depth - 3' <br />Elevation -8395 <br />• <br />I• <br />Summary Information <br />Initiated 1011!1991 10/1/1991 10/1/1991 101111991 <br />Activated 91111995 91111995 91111995 91111995 <br />Date 12/22/2003 9120/2003 6/30/2003 41252003 <br />F-ek] <br />Parame a Baseline Operatlon <br />UNITS Min Ave Max Min Ave Max <br />Flow GPM 0.0 6.4 120 0.0 9.8 60.0 0 0 11.3 5 <br />Freeboard Feet 0.0 0.0 0 0.0 0.6 3.2 3 3 0 0 <br />Temperature Celsius 8.0 13.7 23.2 0.4 12.5 22.9 22.9 8 <br />Conduclivi umhos/cm 90 222 470 80 190 420 165 120 <br />pH su 7.7 8.0 8.3 7.2 8.0 8.4 7.7 7.7 <br />Field Comments D Standin Wtr <br />La <br />ara a <br />UNITS <br />Bicarhonate m /L 98 98 98 72 106 187 102 <br />Carbonate mg/L <MDL <MDL <MDL <MOL <MDL <MDL <MOL <br />Chloride mg/L 2 2 2 1 1 2 1 <br />Conductivity umhos/cm 184 184 184 142 201 344 1gp <br />Hardness m /L 85 85 85 71 98 176 91 <br />pH su 7.8 7.8 7.8 6.6 7.6 8.1 8.1 <br />ResidueFilterable-TDS mg/L 96 96 96 80 128 220 120 <br />ResidueNOnFilterable-TS mglL 6 6 6 14 39 66 14 <br />SAR 0.24 0.24 0.24 0.19 0.25 0.35 0.23 <br />Sulfate mg/L 8 8 8 <MDL 5 10 cMDL <br />Calcium (Dissolved) m /L 21.0 21.0 21 18.0 23.7 42.1 22 <br />Ma nesium (Dissolved) m /L 8.0 8.0 8 6.4 9.3 17.1 g,7 <br />Sodium (Dissolved) mglL 5.0 5.0 5 3.8 5.7 10.8 5 <br />Potassium mg/L <MDL 0.5 1.5 <br />TDS Ratio ( rav./talc.) <MDL 0.64 1.28 <br />Pond 10-9 is a man made pond (approximafety 45' x 20~ with an earthen dam /rated on the south side. The pontl is located in the <br />NEi/4SE1/4 0/Section f 0, T13S, R92 W. The source of surface water is from the Ovedand Ditch and natural runoff. (Simon Hydro Search, 92) <br />Baseline Intortnation for Point P1009 is dedvetl from events beginning on 10/1/91 through 9/7/95. FI Ufe NO. 70 <br />Point influenced by mining on 9/7/95. 9 <br />