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4 <br /> NUCLA EAST MINE GROUND WATER QUALITY TISTICS REPORT <br /> GEOLOGIC UNIT UNDERBURDEN <br /> OBSERVATIONS MEAN ST.DEV. MIN MAX <br /> FIELD PARAMETERS <br /> CONDUCTIVITY (UMHOS/CM) 12 1740.00 507.40 1290.00 2640.00 <br /> PH (UNITS) 12 7.07 6.47 9.07 <br /> WATER TEMPERATURE (DEG C) 12 13.67 2.39 10.00 18.50 <br /> DEPTH TO WATER (FT) 12 47.93 19.43 33.06 78.32 <br /> LABORATORY PARAMETERS <br /> ALKALINITY, DISS. (MG/L OF CAC03) 12 595.00 121 .72 490.00 778.00 <br /> ALUMINUM, DISS. (MG/L) 12 0.06 0.03 0.05 0.15 <br /> ARSENIC, DISS. (UG/L) 12 3.00 4.02 1.00 12.00 <br /> BARIUM, DISS, (UG/L) 3 36.67 11 .55 30.00 50.00 <br /> BICARBONATE, DISS. (MG/L) 12 714.50 137.83 598.00 949.00 <br /> BORON, DISS. (UG/L) 12 282.50 67.71 200.00 410.00 <br /> CADMIUM, PISS. (UG/L) 12 5.17 0.58 5.00 7.00 <br /> CALCIUM, DISS. (MG/L) 12 165.50 154.30 8.00 372.00 <br /> CARBONATE, DISS. (MG/L) 12 5.58 15.47 0.00 53.00 <br /> CHLORIDE, DISS. (MG/L) 12 29.58 5.88 20.00 38.00 <br /> CHROMIUM, DISS. (UG/L) 6 10.00 0.00 10.00 10.00 <br /> CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 12 2045.00 543.58 1520.00 2810.00 <br /> COPPER, DISS. (UG/L) 12 10.00 0.00 10.00 10.00 <br /> FLUORIDE, DISS. (MG/L) 12 0.85 0.47 0.37 1.70 <br /> HARDNESS AS CAC03 (MG/L) 12 797.92 746.95 41.00 1791 .00 <br /> IRON, DISS. (MG/L) 12 0.63 1.06 0.02 2.51 <br /> LEAD, DISS. (UG/L) 12 21.67 5.77 20.00 40.00 <br /> w MAGNESIUM, DISS. (MG/L) 12 93.67 88.24 5.00 216.00 <br /> v MANGANESE, DISS. (MG/L) 12 0.10 0.12 0.01 0.30 <br /> MERCURY, DISS. (UG/L) 12 0.22 0.06 0.20 0.40 <br /> MOLYBDENUM, DISS. (UG/L) 12 50.00 0.00 50.00 50.00 <br /> NICKEL, DISS. (UG/L) 3 20.00 0.00 20.00 20.00 <br /> NITROGEN, AMMONIA, DISS. (MG/L) 12 1 .19 0.42 0.65 1 .77 <br /> NITROGEN, NITRATE, DISS. (MG/L) 12 0.03 0.01 0.02 0.06 <br /> NITROGEN, NITRITE, DISS. (MG/L) 0 <br /> PH @ 25 DEG C 12 7.62 7.00 9.10 <br /> PHOSPHATE AS PO4, DISS. (MG/L) 9 0. 10, 0.00 0.10 0.10 <br /> POTASSIUM, DISS. (MG/L) 12 22.92 6.50 14.00 32.00 <br /> SELENIUM, DISS. (UG/L) 12 1 .00 0.00 1 .00 1 .00 <br /> SILVER, DISS. (UG/L) 6 10.00 0.00 10.00 10.00 <br /> SODIUM, DISS, (MG/L) 12 242.58 125.91 120.00 427.00 <br /> SAR 12 10.25 11.71 1.25 29.52 <br /> SULFATE, DISS. (MG/L) 12 694.50 590.02 126.00 1509.00 <br /> SULFIDE, TOTAL (MG/L) 0 <br /> SUSPENDED SOLIDS (MG/L) 12 1068.42 1334:94 70.00 4250.*00 <br /> ZINC, DISS. (MG/L) 12 0.10 0.20 0.01 0.65 <br /> CATION/ANION BALANCE (q) 12 -0.06 2.20 -4.42 2.82 <br /> DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 12 1619.58 704.63 950.00 2648.00 <br /> DISS. DISSOLVED SOLIDS, CALCULATED (MG/L 12 1594.58 684.49 990.00 2544.00 <br /> ----------------------------------------- <br /> INDICATES NO DATA <br />