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' fsnnan~ ?000 Kerr Coal Comparsy "' 1999 Artrstral HvdroloRy Repot `CO Permit No. C~80~006 ~ Psee 13 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br />TABLE 5 <br />HISTORIC MINE AREA ALLUVIAL WATER QUALITY DATA <br />SITE AO-2A <br />Parameters 1995 1996 1997 1998 1999 <br />Tem 1°CI 7.7 8.6 9.3 7.4 9.3 <br />H Isul 7.2 6.9 7.5 7.6 7.6 <br />E.C. lµmhos/cm) @ 20°C 1033 775 638 871 1200 <br />TDS 863 673 580 817 1060 <br />SAR (in water) 2.74 2.40 1.97 2.84 2.39 <br />Calcium Idissolvedl 93.0 77.2 70.2 91.9 127.3 <br />Sodium Idissolvedl 130 103 80 131 130 <br />Ma nesium Idissolvedl 48.0 39.6 34.7 46.0 60.6 <br />Potassium Idissolvedl 3.0 3.6 4.4 3.9 4.0 <br />Sulfate 330 193 153 280 490 <br />Chloride 12.0 7.3 5.5 11.7 16 <br />Carbonate (as CaC031 <2 <2 <2 <2 5.3 <br />Bicarbonate las CaC031 395 363 302 373 317 <br />Fluoride 0.4 0.5 0.4 0.4 0.4 <br />Nitrate-Nitro en Idissolvedl 4.54 5.39 0.53 0.28 0.14 <br />Iron Idissolvedl 0.27 0.49 0.22 0.12 0.10 <br />Man anese Idissolvedl 0.69 0.60 0.35 0.80 0.81 <br />Aluminum Idissolvedl <0.05 <0.03 0.03 <0.03 <0.03 <br />Barium Idissolvedl 0.11 0.10 0.09 0.11 0.11 <br />Boron Idissolvedl 0.13 0.13 0.18 0.15 0.14 <br />Cadmium Idissolvedl <0.005 <0.003 <0.003 <0.003 <0.003 <br />Chromium Idissolvedl <0.01 <0.01 <0.01 <0.01 <0.01 <br />Copper Idissolvedl <0.01 <0.01 0.01 <0.01 <0.01 <br />Lead Idissolvedl <0.02 <0.02 <0.04 <0.2 <0.04 <br />Mercur Idissolvedl <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <br />Molybdenum (dissolved) <0.01 <0.01 <0.01 <0.01 <0.01 <br />Nickel Idissolvedl <0.02 <0.01 <0.01 <0.01 <0.01 <br />Phos horns lortho dissolved) 0.03 0.07 0.02 0.01 <0.005 <br />Vanadium Idissolvedl <0.01 <0.005 <0.005 <0.03 <0.005 <br />Notes: All values represent mean annual values in mg/I unless otherwise noted. <br />' Montgomery Wattort "P.O. Boz 774078 "Steamboat Springs, Colorado 80477 •(970J 879-6260 <br />' Y<\PgUmivl R.Partl IYYY~IY+Y Hry(rdup Rryon <br />