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January 1995 <br />Kerr Coal Company ° 1994 Annua! Hydrology Repott • 18 <br />TABLE 7 <br />SITE AP-2 <br />HISTORIC LOADOUT AREA ALLUVIAL WATER QUALITY DATA <br />PARAMETERS 1990 1991 1992 1993 1994 <br />Temp Ideg C) 10.7 12.8 11.4 12.5 10 <br />pH (su) 7.8 7.8 7.9 8.4 7.7 <br />E.C. (pmha/cm) @ 20°C 493.3 600 471 483 457 <br />TDS 1017 595 345 362 332 <br />SAR .67 1.73 .92 .88 1.07 <br />Ca 53 67 56 53 53 <br />Na 25 77 35 33 41 <br />Mg 34 45 36 34 36 <br />K 1 2 2 2 2 <br />SO4 27 64 47 46 34 <br />CI 8 13 8 7 5 <br />CO3 4 0 11 0 0 <br />HCO3 277 438 292 302 328 <br />F - 0.5 0.4 0.4 0.4 <br />NO3/N <0.02 0.03 0.09 <0.02 0.03 <br />Fe (dissl 0.35 0.06 0.02 0.24 0.02 <br />Mn Idissl 0.12 0.38 0.14 0.49 0.55 <br />AI 0.02 <0.05 <0.05 0.06 <0.05 <br />Ba 0.11 0.16 0.12 0.15 0.12 <br />B 0.02 0.06 0.05 0.06 0.06 <br />Cd 0.007 <0.005 <0.005 <0.005 <0.005 <br />Cr 0.01 <0.01 <0.01 <0.01 <0.01 <br />Cu 0.01 <0.01 <0.01 <0.01 <0.01 <br />Pb 0.02 0.02 <0.02 <0.02 <0.02 <br />Hg <0.0001 0.0002 <0.0001 <0.0001 <0.0002 <br />Mo <0.05 <0.05 <0.05 <0.05 <0.01 <br />Ni <0.02 <0.02 <0.02 <0.02 <0.02 <br />P IOrthol 0.52 0.04 0.01 0.05 0.03 <br />V <0.01 <0.01 <0.01 <0.01 <0.01 <br />Notes: All values in mg/I unless otherwise noted <br />All values represent mean annual values <br />~vn~l.y«b~.r. <br />ovwm ia~r mv~ <br />TmaMatnx lnc. " P.O. Box 774018 "Steamboat Spnngr, Cola~ado 80477 (303J 8796160 <br />