1988-04-11_PERMIT FILE - C1981008A (12)

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NUCLA EAST MINE GROUND WATER QUALITY REPORT SAMPLE POINT GW-N20(WBOO2O) LOCATION 46N15W6BAA GEOLOGIC UNIT DAKOTA COAL DATE OF COLLECTION 07/12/86 10/14/86 01/28/87 04/29/87 11/18/87 FIELD PARAMETERS CONDUCTIVITY (UMHOS/CM) 2350.00 2000.00 1480.00 1520.00 1300.00 PH (UNITS) 4.68 4.95 5.52 5.82 5.65 WATER TEMPERATURE (DEG C) 15.60 12.80 12.00 13.20 11 . 10 DEPTH TO WATER (FT) 15.69 20.13 22.99 23.23 18.66 LABORATORY PARAMETERS ALKALINITY, DISS. (MG/L OF CAC03) 0.00 8.00 30.00 58.00 52.00 ALUMINUM, DISS. (MG/L) 15.10 7.77 0.95 0.46 0.41 ARSENIC, DISS. (UG/L) 4.00 < 1.00 < 1.00 < 1.00 < 1.00 BARIUM, DISS. (UG/L) 20.00 10.00 BICARBONATE, DISS. (MG/L) 0.00 10.00 37.00 71.00 63.00 BORON, DISS. (UG/L) 120.00 500.00 270.00 440.00 430.00 CADMIUM, DISS. (UG/L) < 5.00 < 5.00 < 5.00 < 5.00 < 5.00 CALCIUM, DISS. (MG/L) 434.00 399.00 321.00 285.00 255.00 CARBONATE, DISS. (MG/L) 0.00 0.00 0.00 0.00 0.00 CHLORIDE, DISS. (MG/L) 6.00 7.00 7.00 8.00 6.00 CHROMIUM, DISS. (UG/L) < 10.00 < 10.00 10.00 CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 2930.00 2470.00 2170.00 1980.00 1720.00 COPPER, DISS. (UG/L) 10.00 < 10.00 < .10.00 < 10.00 < 10.00 FLUORIDE, DISS. (MG/L) 0.17 2.00 1.30 1.30 0.80 v HARDNESS AS CAC03 (MG/L) 1913.00 1731.00 1319.00 1131.00 1031 .00 P IRON, DISS. (MG/L) 51.80 43.80 39.30 36.80 31.30 LEAD, DISS. (UG/L) 70.00 < 20.00 < 20.00 < 20.00 c 20.00 N MAGNESIUM, DISS. (MG/L) 202.00 179.00 126.00 102.00 96.00 ry MANGANESE, DISS. (MG/L) 2.26 1.92 1.64 0.96 1 .51 MERCURY, DISS. (UG/L) < 0.20 < 0.20 < 0.20 < 0.20 < 0.20 MOLYBDENUM, DISS. (UG/L) < 50.00 < 50.00 < 50.00 < 50.00 < 50.00 NICKEL, DISS. (UG/L) 20.00 40.00 NITROGEN, AMMONIA, DISS. (MG/L) 1.34 1.73 1.57 1.66 1 .66 NITROGEN, NITRATE, DISS. (MG/L) 0.07 < 0.02 0.02 0.05 0.01 NITROGEN, NITRITE, DISS. (MG/L) 0.01 PH @ 25 DEG C 4.50 4.90 6.00 6.10 6.10 PHOSPHATE AS PO4, DISS. (MG/L) 0.20 < 0.10 < 0.10 POTASSIUM, DISS. (MG/L) 15.00 12.00 11.00 9.00 11.00 SELENIUM, DISS. (UG/L) < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 SILVER, DISS. (UG/L) < 10.00 < 10.00 < 10.00 SODIUM, DISS. (MG/L) 57.00 53.00 39.00 37.00 38.00 SAR 0.57 0.56 0.47 0.48 SULFATE, DISS. (MG/L) 2196.00 1860.00 1504.00 1241 .00 1085.00 SULFIDE, TOTAL (MG/L) < 0.20 SUSPENDED SOLIDS (MG/L) 22.00 480.00 170.00 272.00 232.00 ZINC, DISS. (MG/L) 0.80 0.50 0.35 0.18 0.24 CATION/ANION BALANCE 5.86 2.80 1.82 1.82 3.03 cn DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 3060.00 2526.00 2036.00 1824.00 1560.00 CD DISS. DISSOLVED SOLIDS, CALCULATED (MG/L) 2910.00 2515.00 2015.00 1708.00 1511 .00 CL ----------------------------------------- OA INDICATES NO DATA r-� 00 00