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/anuary 1998 Kerr Coal Comyany • l997A nnual Hydrology Report • CO Permit No. C-80-006 ~ 17 <br /> <br /> <br />• <br />TABLE 7 <br />SITE AP-2 <br />HISTORIC LOADOUT AREA ALLUVIAL WATER QUALITY DATA <br />Parameters 1993 1994 1995~'~ 1998 1997 <br />Tem 1°CI 12.5 10 7.3 10.0 10.6 <br />H Isul 8.4 7.7 7.7 7.6 7.9 <br />E.C. lumho/cml @ 20°C 483 457 567 517 571 <br />TDS 362 332 589 467 373 <br />SAR lin water) .88 1 .07 3.58 1 .72 1.01 <br />Calcium Idissolved) 53 53 44 57.6 54.6 <br />Sodium Idissolved) 33 41 121 68.8 38.9 <br />Ma nesium (dissolved) 34 36 34 40.5 36.8 <br />Potassium Idissolved) 2 2 3 2.2 1 .8 <br />Sulfate 46 34 92 50.7 40 <br />Chloride 7 5 10 10 7 <br />Carbonate las CaC031 0 0 4 <2 ~ <2 <br />Bicarbonate las CaC031 302 328 438 431.5 320 <br />Fluoride 0.4 0.4 0.6 0.45 0.4 <br />Nitrate-Nitro en (dissolved) <0.02 0.03 0.08 <0.2 0.03 <br />Iron (dissolved) 0.24 0.02 0.59 0.30 0.10 <br />Man anese Idissolved) 0.49 0.55 0.31 0.79 0.56 <br />Aluminum Idissolved) 0.06 <0.05 0.22 <0.03 <0.03 <br />Barium Idissolved) 0.15 0.12 0.20 0.15 0.12 <br />Boron Idissolved) 0.08 0.06 0.08 0.06 0.05 <br />Cadmium Idissolved) <0.005 <0.005 <0.005 <0.003 <0.003 <br />Chromium Idissolved) <0.01 <0.01 <0.01 <0.01 <0.01 <br />Co er (dissolved) <0.01 <0.01 <0.01 <0.01 <0.01 <br />Lead (dissolved) <0.02 <0.02 <0.02 <0.02 <0.2 <br />Mercur Idissolved) <0.0001 <0.0002 <0.0002 <0.0002 <0.0002 <br />Mol bdenum Idissolved) <0.05 <0.01 <0.01 <0.01 <0.01 <br />Nickel ldissolvedl <0.02 <0.02 <0.02 <0.01 <0.01 <br />Phos horns (ortho dissolved) 0.05 0.03 0.05 0.47• 0.01 <br />Vanadium ldissolvedl <0.01 <0.01 0.02 0.005 <0.005 <br />Notes: All values in mg/I unless otherwise noted. <br />All values represent mean annual values. <br />• Indicates the mean includes a result from the sample collected 10/17/95 which is anomalous <br />based on comparison with prior and subsequent samples. <br />"~ The means include data from a sample collected on 5/3/95 which contains anomalous values <br />for man arameters based on com orison with rior and subse uent sam les. <br />H~egT%ANNU~L NPTVIYDRO.FNL TenaMatrix lnc. •P.O. Box 774078 • Steamlwat Springy, Colorado 80477 • ~970f 879-626017 <br />