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mining, when the mine will still be influenced by spoils, there is only a <br />remote possibility that the ion balance will dramatically change the surface <br />water chemical make-up. Central sections of Fish Creek may show more of a <br />shift than others, as spoils discharges from Mine No. 2 have been slower to <br />develop than in other areas. <br />Discharge from the flooded workings will be similar to spoils discharge <br />quality, which is predominately a magnesium-calcium sulfate type. This will <br />have no influence on the distribution of chemical constituents in Fish and <br />Trout Creeks due to the small quantity of discharge water. <br />TABLE 12: Existing Water Quality Data (1985) <br />Water Quality Foidel Creek Pond F Pond D <br />Discharge Receiving <br />Stream <br />Standard <br />pH (units) 7.8 7.0 7.7 6.5-9.0 <br /> (6.8-8.3) (6.5-7, 7) (6,6-8,3) <br />TDS 2373 4073 2963 1460* <br /> (880-3350) (3380-4320) (958-4085) <br />EC (umhos/cm) 1918 3240 2109 2000* <br /> (1350-2550) (2710-4700} (1040-2810) <br />TSS 746 11 17.7 35/70+ <br /> (18-8820) ( 4-42) ( 2-48) <br />DO2 (Units) 8.5 8.3 8.6 6.0 <br /> <br />Arsenic 0.004 0.002 0.001 0.005 <br />(0.001-0.025) <br />Bicarbonate 308 416 183 N/A <br />(246-387) (376-453) (123-242) <br />Cadmium 0.006 0.007 0.005 0.001 <br /> (0.005-0.011 (0.005- 0.02) 0.005 <br />Calcium 257 504 407 N/A <br /> (163-457) (477-533) 344-469) <br />Chromium 0.01 0.014 0.01 0.025 <br /> ( 0.01-0.02) (0.005- 0.02) (0.01) <br />Copper 0.026 0.013 0.005 0.022 <br /> (0.002-0.290) 0.001-0.03) ( 0.001-0.023) <br />-46- <br />