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NUCLA MINE GROUND WATER QUALITY STATISTICS REPORT <br /> GEOLOGIC UNIT UNDERBURDEN <br /> OBSERVATIONS MEAN ST.DEV. MIN MAX <br /> FIELD PARAMETERS <br /> CONDUCTIVITY (UMHOS/CM) 34 2237.94 862.20 650.00 4500.00 <br /> PH (UNITS) 35 6.61 6.10 9.50 <br /> WATER TEMPERATURE (DEG C) 32 16.22 2.33 12.20 20.00 <br /> DEPTH TO WATER (FT) 39 45.09 18.28 17.27 80.56 <br /> LABORATORY PARAMETERS <br /> ALKALINITY, DISS. (MG/L OF CAC03) 39 329.51 134.44 21.00 530.00 <br /> ALUMINUM, DISS. (MG/L) 24 0.13 0.10 0.05 0.30 <br /> ARSENIC, DISS. (UG/L) 28 1.29 0.46 1.00 2.00 <br /> BARIUM, DISS. (UG/L) 12 200.00 173.99 10.00 600.00 <br /> BICARBONATE, DISS. (MG/L) 12 444.17 67.33 299.00 534.00 <br /> BORON, DISS. (UG/L) 39 407.72 179.52 66.00 846.00 <br /> CADMIUM, DISS. (UG/L) 24 4.24 3.79 0.20 20.00 <br /> CALCIUM, DISS. (MG/L) 39 404.31 181.91 4.00 638.00 <br /> CARBONATE, DISS. (MG/L) 12 0.00 0.00 0.00 0.00 <br /> CHLORIDE, DISS. (MG/L) 39 33.00 14.45 11.00 72.00 <br /> CHROMIUM, DISS. (UG/L) 15 29.33 22.19 0.00 80.00 <br /> CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 39 2716.59 957.61 850.00 4070.00 <br /> COPPER, DISS. (UG/L) 31 17.10 11.17 1.00 70.00 <br /> FLUORIDE, DISS. (MG/L) 39 0.68 0.46 0.10 2.25 <br /> HARDNESS AS CAC03 (MG/L) 35 1828.03 766.67 277.00 3010.00 <br /> IRON, DISS. (MG/L) 32 14.76 32.40 0.02 131.00 <br /> P LEAD, DISS. (UG/L) 32 25.63 19.83 20.00 100.00 <br /> p MAGNESIUM, DISS. (MG/L) 39 190.74 102.99 31.00 435.00 <br /> v MANGANESE, DISS. (MG/L) 39 1.67 1.31 0.02 5.08 <br /> MERCURY, DISS. (UG/L) 35 4.73 9.73 0.02 40.00 <br /> MOLYBDENUM, DISS. (UG/L) 27 111.85 79.02 2.00 200.00 <br /> NICKEL, DISS. (UG/L) 19 23.68 5.97 20.00 40.00 <br /> NITROGEN, AMMONIA, DISS. (MG/L) 28 0.66 0.59 0.15 2.74 <br /> NITROGEN, NITRATE, DISS. (MG/L) 39 0.56 0.57 0.01 2.00 <br /> NITROGEN, NITRITE, DISS. (MG/L) 2 0.01 0.00 0.01 0.01 <br /> PH @ 25 DEG C 38 6.76 6.40 9.50 <br /> PHOSPHATE AS PO4, DISS. (MG/L) 12 0.10 0.08 0.01 0.30 <br /> POTASSIUM, DISS. (MG/L) 39 10.30 3.10 5.60 19.00 <br /> SELENIUM, DISS. (UG/L) 28 1.21 0.42 1.00 2.00 <br /> SILVER, DISS. (UG/L) 11 8.36 3.17 2.00 12.00 <br /> SODIUM, DISS. (MG/L) 39 80.31 23.69 35.00 124.00 <br /> SAR 12 0.71 0.23 0.40 1 .08 <br /> SULFATE, DISS. (MG/L) 39 1562.54 663.89 285.00 2808.00 <br /> SULFIDE, TOTAL (MG/L) 2 0.20 0.00 0.20 0.20 <br /> SUSPENDED SOLIDS (MG/L) 32 387.59 1751.89 10.00 9980.00 <br /> m ZINC, DISS. (MG/L) 39 0.52 1.88 0.01 11.40 <br /> < CATION/ANION BALANCE (%) 12 1.04 2.13 -1 .99 4.63 <br /> N DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 39 2674.10 1069.60 580.00 4292.00 <br /> CD DISS. DISSOLVED SOLIDS, CALCULATED (MG/L 12 2797.08 376.38 2000.00 3170.00 <br /> m ----------------------------------------- <br /> p INDICATES NO DATA <br /> 00 <br /> 00 <br />