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January ]998 Ken Caa! Company ` 1997Annual Hydralo,¢y Report • CO Permit No. G80-006 • 8 <br />• <br />• <br />• <br />TABLE 3 <br />SITE 79-1 <br />HISTORIC MINE AREA OVERBURDEN WATER QUALITY DATA <br />Parameters 1993 1994 1995 1996 1997 <br />Tem 1°C) 8.5 7.5 7.5 8.5 8.9 <br />H Isul 8.5 8.4 7.4 7.9 8.3 <br />E.C. lµmho/cml @ 20°C 950 1000 1050 1535 2330 <br />TDS 795 831 841 1145 1410 <br />SAR lin water) 26.15 25.62 25.31 23.35 24 <br />Calcium Idissolvedl 9 9 9 19.6"' 26.7 <br />Sodium (dissolved) 307 294 297 395 496 <br />Ma nesium Idissolvedl 1 1 1 2.6 3.1 <br />Potassium (dissolved) 2 2 2 2.1 2.3 <br />Sulfate 270 236 270 473 615 <br />Chloride 16 15 17 21 44 <br />Carbonate las CaC031 58 0 <2 <2 <2 <br />Bicarbonate las CaC031 349 416 429 407 452 <br />Fluoride 0.3 0.3 0.4 0.3 0.3 <br />Nitrate-Nitro en Idissolvedl 1.71 1.57 1.74 1.11 <0.02 <br />Iron (dissolved) 0.03 <0.02 0.07 0.07 0.25 <br />Men anese Idissolvedl 0.01 0.01 <0.01 0.08 0.09 <br />Aluminum (dissolved) <0.05 <0.05 <0.05 <0.03 0.12 <br />Barium (dissolved) 0.04 0.04 0.04 0.03 0.03 <br />Boron (dissolved) 0.12 0.12 0.11 0.11 0.08 <br />Cadmium Idissolvedl <0.005 <0.005 <0.005 <0.003 <0.006 <br />Chromium Idissolvedl <0.01 <0.01 <0.01 <0.01 <0.02 <br />Co er Idissolvedl 0.01 <0.01 <0.01 <0.01 <0.02 <br />Lead Idissolvedl <0.02 <0.02 <0.02 <0.02 <0.04 <br />Mercur Idissolvedl 0.0001 <0.0002 <0.0002 <0.0002 <0.0002 <br />Mol bdenum Idissolvedl <0.05 <0.01 <0.01 <0.01 <0.02 <br />Nickelldissolved) <0.02 <0.02 <0.02 <0.01 <0.02 <br />Phos horns lortho dissolved) 0.18 0.17 0.17 0.25 0.04 <br />Vanadium Idissolvedl <0.01 <0.01 <0.01 <0.005 <0.01 <br />Notes: All values in mgll unless otherwise noted. <br />All values represent mean annual values. <br />On 414195, the laboratory reported total recoverable Fe and Mn instead of dissolved values. <br />These values were not included in the 1995 mean annual values reported in this table. <br />°1 Modification of the sampling procedure beginning in April 1996 may have caused values to ~~ <br />be inconsistent with previous samples. <br />H~/9T%ANNU,I L.RITHYDFO FNL TerraMatrizlnc.•P.O. Boz 774018'Steom6oat Springs, Colorado 80477 `(970J 879-62608 <br />