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GROUND WATER QUALITY PARAMETERS ' SITE GW-N15 FORMATION OVERBURDEN DATE OF COLLECTION 08/02/95 05/23!95 02/16/95 11/17/94 ' FIELD PARAMETERS Conductivity (UMHOS/CM) 1950 2880 2980 2560 pH 6.5 7.2 7.13 7.3 Water Temperature (DEG C) ' LABORATORY PARAMETERS ACIDITY, DISS. (mg/I OF CACO3) ALKALINITY, DISS. (mg/I OF CACO3) 198 313 250 ALUMINUM, DISS. (mg/I) 17.3 ARSENIC, DISS. (mgA)' BARIUM, DISS. (mgA)` 0.034 0.024 0.005 0.066 BERYLLIUM, DISS. (mg/I) 0.045 BICARBONATE, DISS. (mg/I) 236 198 313 250 BORON, DISS. (mg/I)` CADMIUM, DISS. (mg/I)` 0.23 0.29 0.42 0.23 CALCIUM, DISS. (mg/I) 298 469 421 430 CARBONATE, DISS. (mg/I) CATIONlANION BALANCE (%) 3.3 -1 12.5 0.54 CHLORIDE, DISS. (mg/I) 21 14 10 7 COBALT, DISS. (mgA) 0.11 CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 1950 2880 2980 2560 COPPER, DISS. (mgA)` FLUORIDE, DISS. (mg/I) 6 3 1.5 1.9 HARDNESS AS CACO3 (mgA) 1190 1750 2480 1730 IRON, DISS. (mgA) 0.06 42.9 0.04 IRON, TOTAL (mg/I) 0.49 0.06 52.8 0.7 LEAD, DISS. (mg/I)` LITHIUM, DISS. (mg/I) 0.1 0.22 0.89 0.11 MAGNESIUM, DISS. (mgll) 109 141' 347 160 MANGANESE, DISS. (mg/1) 0.018 4.62 0.02 ' MANGANESE, TOTAL (mg/I) 0.081 0.005 5.13 0.11 MERCURY, DISS. (mg/I)' MOLYBDENUM, DISS. (mgA)` 0.003 0.003 0.005 NICKEL, DISS. (mg/I)` 0.19 ' NITROGEN, AMMONIA, DISS. (mgA) 0.06 1.39 0.07 NITROGEN, NITRATE, DISS. (mg/l) 0.15 0.24 2.5 ' NITROGEN, NITRITE, DISS. (mg/I) PH@25DEGC 6.5 7.2 6.8 2.5 7.3 PHOSPHATE AS PO4, DISS. (mg/I) 0.41 POTASSIUM, DISS. (mg/l) 3.5 3.8 15.1 ' SELENIUM, DISS. (mg/I)' 0.005 0.007 SODIUM, DISS. (mgA) 47.5 52.1 61.7 43 SODIUM ADSORPTION RATIO 0.6 0.54 0.55 0.45 SULFATE, DISS. (mg/I) 891 1600 1800 1490 ' SULFIDE, TOTAL (mg/l) 0.03 TOTAL DISSOLVED SOLIDS @ 180 DEG (mg/I) 1.12 1.15 2910 TOTAL DISSOLVED SOLIDS, CALCULATED (mgA) 1520 2400 2939.1 2320 TOTAL SUSPENDED SOLIDS (mg/I) VANADIUM, DISS. (mg/I) ' ZINC, DISS. (mg/I)` 0.02 0.02 0.51