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:,~ <br />• NUCLA MINE <br />GROUND HATER QUALITY~ISTICS REPORT <br />GEOLOGIC UNIT OVERBURDEN AND DAKOTA COAL <br />OBSERVATIONS MEAN ST. DEV. MIN MAX <br />FIELD PARAMETERS <br />CONDUCTIVITY (UMIIOS/C14) 14 2574.00 810.24 16.00 3250.00 <br />PH (UNITS) 15 6.67 6.40 7.20 <br />HATER TEMPCRATURE (OEC C) 14 14.49 2.08 12.00 20.00 <br />DEPTH TO HATER (FT) 15 38.37 4.38 31,11 46.31 <br />LABORATORY PARAMETERS <br />ALKALINITY, DISS. (MG/L OF CAC03) 1G 373.63 50.61 299.00 454.00 <br />ALUMINUM, DISS. (MC/L) 12 0.13 0.09 0.05 0.30 <br />ARSENIC, DISS. (UC/L) 13 1.38 0.51 1,00 2.00 <br />DARIUM, DISS. (UG/L) 3 240.00 242.49 20.00 500.00 <br />BICARBONATE, DISS. (MG/L) 9 438.33 60.68 365.00 525.00 <br />BORON, DISS. (UG/L) 16 360.38 154.74 140.00 738.00 <br />CADMIIIM, DISS. (UG/L) 12 4.89 1.85 2.00 8.00 <br />CALCIUM, DISS. (MG/L) 16 533.63 77.65 259.00 606.00 <br />CARBONATE, DISS. (MC/L) 9 0.00 0.00 0.00 0.00 <br />CIILORIDE, DISS. (14C/L) 16 42.69 130.47 1.00 530.00 <br />CIIROMIUM, DISS. (UG/L) 4 42.50 29.86 10.00 80.00 <br />CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 16 3641.06 421.78 3000.00 4360.00 <br />COPPER, DISS. (UG/L) 14 21.00 12.47 10.00 60.00 <br />FLUORIDE, UISS. (MC/L) 16 0.75 f1,21 0.41 1.38 <br />HARDNESS AS CAC03 (MC/L) 15 2802.07 231.35 2412.00 3277.00 <br />IRON, DISS. (MG/I.) 111 2.21 1.42 0,39 5.15 <br />LEAD, DISS. (UC/l) 14 33.57 34.55 20.00 120.00 <br />MAGNESIUM, DISS. (MC/L) 1G 338.44 61.14 200.00 424.00 <br />MANGANESE, DISS. (IAG/L) 16 1.93 0.46 0.92 2.64 <br />MERCURY, DISS. (UC/L) 15 2.9G 6.92 0.02 20.00 <br />MOLYBDENUM, DISS. IUC/L) T3 119.46 80.10 3.00 200.00 <br />NICKEL, DISS. (UC/L) 5 24.00 5.48 20,00 30.00 <br />NITROGEN, A14MONIA, DISS. (MC/L) 13 0.48 0.29 0.10 1.OU <br />NITROGEN, NITRATE, DISS. (MC/L) 16 0.47 0.62 0.01 1.61 <br />NITROGEN, NITRITE, DISS. (MG/L) U <br />PH @ 25 DEG C 1G 6.80 6.40 7.70 <br />PHOSPHATE AS P04, DISS. (MC/L) 9 0.11 0.08 0.07 0.30 <br />POTASSIUTA, DISS. (MC/L) 1G 9.38 4.48 4.00 20.00 <br />SELENIUM, DISS. (UC/L) 13 1.46 0.52 1,00 2.00 <br />SILVER, DISS. (UG/L) 3 12.33 2.08 10.00 14.00 <br />SODIUM, DISS, (MC/L) 1G 59.88 39.21 19.00 120.00 <br />SAR 9 0.48 ~ 0.35 0.16 l.ll <br />SULFATE, DISS. (MG/L) 16 2446.00 258.78 1950.00 2992.00 <br />SULFIDE, TOTAL (IAG/L) 0 <br />SUSPENDED SOLIDS (MG/L) 14 314.93 321.32 9.00 1096.00 <br />ZINC, DISS. (MG/L) 16 0.13 0.08 O.U1 0.25 <br />CATION/ANION UAI_AIICE (%) 9 0.40 2.21 -2.50 4.00 <br />DISS. DISSOLVED SOLIDS @ 1B0 DEC (MC/L) 16 3827.75 426.27 3140.00 4708.00 <br />OISS. DISSOLVED SOLIDS, CALCULATED (MC/L 9 3500.67 344.39 3060.00 4118.00 <br />INDICATES NO DATA <br /> <br />