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Bowie Resources Limited Surface Water <br />Bowie No. 1 Mine <br />2003 Annual Hydrology Report 51404 <br />• West Roatcap Creek -Spring 144 <br />Elevation - 7480 <br />Initiated 12!2/1996 12/2/1996 12/2/1996 12/2/1996 <br />Activated 11/22/1998 11/22/1998 1122/1998 11/22/1998 <br />Date 1211812003 9179/2003 612912003 42512003 <br />Summary Information <br />• <br /> <br />t• <br />Baramete. Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow GPM 0 1.51 5.00 0 028 3.00 0 0 0.1 0 <br />Temperature Celsius 4.4 8.7 12.4 0.5 9.3 20.1 20.1 <br />Conductivi umhos/cm 760 883 1000 800 908 960 910 <br />pH su 6.8 7.3 7.6 7.1 7.4 7.7 7.3 <br />Field Comments Seep Seep Seep <br />r <br />~ararpee_, <br />UNITS <br />Bicarbonate mg/L 352 354 355 385 391 402 387 <br />Carbonate mg/L <MDL <MDL cMDL <MDL <MOL <MDL <MDL <br />Chloride mglL 19 20 21 26 27 28 26 <br />Conductivity umhoslcm 780 800 879 879 939 979 960 <br />Hardness m /L 398 401 404 348 389 455 363 <br />pH su 8.0 8.0 8.0 7.3 7.6 7.7 7.7 <br />ResidueFilterable-TDS m IL 480 490 500 600 fi17 630 600 <br />ResidueNonFilterable-TS m /L 6 7 8 16 41 66 66 <br />SAR 0.93 0.96 0.98 0.98 1.02 1.08 0.98 <br />Sulfate m !L 80 80 80 120 127 130 120 <br />Calcium (Dissolved) mg/L 101 104.0 107 86.8 97.5 114 91.8 <br />Magnesium (Dissolved) m /L 33.3 34.4 35.4 31.9 352 41.3 32.4 <br />Sodium (Dissolved) m /L 42.5 43.6 44.7 42.4 45.8 52.4 42.5 <br />Potassium mg/L 2.3 2.3 2.3 <br />TDS Ratio ( rav.lcalc.) 1.01 1.01 1.01 1.04 1.08 1.13 <br />This spring is a marshlike area of about 20' x 20'. (Hanna, 99) <br />Baseline Information for Point 57404 is derived from events beginning on 1712196 through 1122198. F19UfE: NO. 39 <br />Point influenced by mining on 11/27198. <br />