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m 1 J NUCLA MINE GROUND WATER QUALITY REPORT SAMPLE POINT GW-N91 NA0009) LOCATION 47N16W25CAD GEOLOGIC UNIT OVERBURDEN ANO DAKOTA LOAL DATE OF COLLECTION 10/18/89 09/20/90 FIELD PARAMETERS CONDUCTIVITY lUMM05/CMI 2120 .00 2790 .00 PH IUNITSI 6 .60 6 .29 4ATER TEMPERATURE (DEG C1 13 .00 13 .40 DEPTH TO WATER (FT1 34 .71 32 .93 LABORATORY PARAMETERS ALKALINITY, DI55. IMG/L OF CAC03] 286 .00 298 .00 ALUMINUM, DISS. IMG/L1 < 0 .05 < 0 .05 ARSENIC, DISS. fUG/L1 < 1 .00 < 1 .00 BARIUM, DISS. IUG/LI 30 .00 10 .00 BICARBONATE, DISS. lMG/L) 349 .00 364 .00 BORON, DISS. IUG/LI 140 .00 180 .00 CADMIUM, 0255. fUG/L1 < 5 .00 < 10 .00 CALCIUM, DISS. lMG/L) 638 .00 547 .00 CARBONATE, DISS. IMG/LI 0 .00 0 .00 CHLORIDE, DISS. IMG/L1 < 1 .00 3 .00 CHROMIUM, DISS. IUG/L1 < 10 .00 CONDUCTIVITY a 25 DEG C IUMHOS/CMI 2980 .00 2930 .00 COPPER, DI55. IUG/L) < 10 .00 < 10 .00 FLUORIDE, DISS. IMG/LI 0 .80 0 .90 HARDNESS AS CAC03 (MG/Ll 2423 .00 2155 .00 IRON, DI55. IMG/L1 2 .07 0 .14 LEAD, DISS. lUG/LI < 20 .00 < 20 .00 MAGNESIUM, DISS. IMG/LI 202 .00 192 .00 MANGANESE, DISS. IMG/L) 2 .05 1 .32 MERCURY, DISS. (UG/Ll < 0 .10 < 0 .10 MOLYBDENUM, DISS. fUG/L) < 50 .00 4. 00 NICKEL, DISS. lUG/L1 < 26 .00 < 20 .00 NITROGEN, AMMONIA, DISS. (MG/L) 0 .13 0 .30 NITROGEN, NITRATE, DISS. (MG/LI < 0 .02 < 0 .02 NITROGEN, NITRITE, DISS. (HG/LI < 0 .01 < 0 .01 PH a 25 DEG C 7 .30 7 .30 PHOSPHATE AS P04, DISS. IMG/U < 0 .10 < 0 .10 POTASSSUM, DISS. IMG/LI 5 .00 4 .00 SELENIUM, DISS. IUG/L1 < 1 .00 < 1 .00 SILVER, DISS. IUG/L) < 10 .00 SODIUM, DISS. IMG/LI 15 .00 33. 00 SAR 0 .13 0. 31 SULFATE, DISS. (MG/LI 1980 .00 1865. 00 SULFIDE, TOTAL IMG/L) 0 .10 < 0. 01 SUSPENDED SOLIDS IMG/L) 44 .00 052. 00 ZINC, DISS. lMG/LI 0 .03 0. 02 CATION/ANION BALANCE (1 2 .05 - 0 .62 DISS. DISSOLVED SOLI05 a 180 OEG (MG/L) 2916 .00 3100 .00 DISS. DISSOLVED SOL I05, CALCULATED (MG/L) 3006 .00 2819 .00 INDICATES NO OA TA