1988-04-11_PERMIT FILE - C1981008A (9)

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IJUCLA MINE GROUND WATER QUALITY STATISTICS REPORT SAMPLE POINT GW-N4(WA0004) IOCAFION 47N16W36BCC GEOLOGIC UNIT DAKOTA COAL OBSERVATIONS MEAN ST.DEV. MIN MAX FIELD PARAMETERS CONDUCTIVITY (UMIIOS/CM) 13 4269.23 855.37 1640.00 4880.00 PH (UNITS) 15 6.68 6.50 7.80 WATER TEMPERATURE (DEG C) 14 13.69 2.22 10.80 18.80 DEP111 TO WATER (Ft) 16 6.80 0.56 6.05 7.70 LABORATORY PARAMETERS ALKALINITY, DISS. (MG/L OF CAC03) 16 559.411 57.34 412.00 640.00 ALUMINUM, DISS. (MG/L) 12 0. 13 0.09 0.05 0.30 ARSENIC, DISS. (UG/L ) 13 1.38 0.51 1.00 2.00 BARIUM, DISS. (UG/L) 3 273.33 296.87 20.00 600.00 BICARBONAIE, DISS. (MG/L) 9 674.00 54.33 534.00 720.U0 BORON, DISS. (UG/L) 16 478.13 206.79 292.00 1111.00 CADMIUM, DISS. (UG/L) 12 5.77 4.37 0.20 17.00 CALCIUM, DISS. (MG/L) 16 475.31 26.58 418.00 517.00 CARBONATE, DISS. (MG/L) 9 0.00 0.00 0.00 0.00 CHLORIDE, DISS. (MG/L) 16 55.31 13.74 23.00 84.00 CHROMIUM, DISS. (UG/L) 4 67.50 56.79 10.00 130.00 CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 16 •5890.94 411.88 4800.00 6710.00 COPPER, DISS. (UG/L) 14 21.14 10.37 10.00 50.00 FLUORIDE, DISS. (MG/L) 16 1 .07 0.40 0.64 2.45 HARDNESS AS CAC03 (MG/L) 15 4812.93 448.94 3788.00 5680.00 IRON, DISS. (MG/L) lit 1.22 0.64 0.07 2.19 v LEAD, DISS. (UG/L) 14 43.57 53.00 20.00 190.00 MAGNESIUM, DISS. (MG/L) 16 866.19 110.92 588.00 1100.00 MANGANESE, DISS. (MG/L) 16 2.98 1 .51 1.50 7.84 MERCURY, DISS. (UG/L) 15 2.96 6.92 0.02 20.00 MOLYBDENUM, DISS. (UG/L) 13 120.31 78.81 14.00 200.00 NICKEL, DISS. (UG/L) 5 30.00 12.25 20.00 50.00 NITROGEN, AMMONIA, DISS. (MG/L) 13 0.64 0.26 0.10 1.32 NITROGEN, NITRATE, DISS. (MG/L) 16 0.49 0.73 0.01 2.42 NITROGEN, NITRITE, DISS. (MG/L) 0 PH @ 25 DLG C 16 6.83 6.60 7.30 PHOSPHATE AS PO4, DISS. (MC/L) 9 0.12 0.08 0.01 0.30 POTASSIUM, DISS. (MG/L) 16 23.43 5.02 6.00 28.00 SELENIUM, DISS. (UG/L) 13 1.54 0.66 1.00 3.00 SILVLR, DISS. (UG/L) 3 13.33 3.51 10.00 17.00 SODIUM, DISS. (MG/L) 16 206.94 28.56 108.00 230.00 SAR 9 1.36 0.08 1.23 1.47 SULFATE, DISS. (MG/L) 16 4383.63 319.71 3429.00 4860.00 SULFIDE, TOTAL (MG/L.) 0 SUSPENDED SOLIDS (MG/L) 14 19.50 17.64 5.00 76.00 < ZINC, DISS. (MG/L) 16 0.06 0.02 0.02 0.10 L' CATION/ANION BALANCE 9 1.46 2.01 -2.00 4.30 CD a DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 16 6722.13 358.85 5438.00 7100.00 o DISS. DISSOLVED SOLIDS, CALCULATED (MG/L 9 6534.89 216.91 6252.00 6990.00 r ----------------------------------------- INDICATES NO DATA 00 00 Table 7-10. Ground Water Quality Statistics Report for GW-N4