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

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NUCLA MINE GROUND WATER QUALITY REPORT SAMPLE POINT GW-Ni1(WA0004) LOCATION 47N16W36BCC GEOLOGIC UNIT DAKOTA COAL DATE OF COLLECTION 10/18/79 04/10/80 12/18/80 07/08/81 12/18/81 06/24/82 12/21/82 FIELD PARAMETERS CONDUCTIVITY (UMHOS/CM) 3600.00 4300.00 4400.00 4800.00 4500.00 PH (UNITS) 7.80 6.70 6.70 7.10 6.50 6.60 WATER TEMPERATURE (DEG C) 11.50 18.80 11.00 14.80 13.00 DEPTH TO WATER ( FT) 6.07 7.14 6.78 6.05 6.94 6.58 7.07 LABORATORY PARAMETERS ALKALINITY, DISS. (MG/L OF CAC03) 602.00 568.00 640.00 412.00 595.00 601 .00 561.00 ALUMINUM, DISS. (MG/L) < 0.30 < 0. 10 0.08 ARSENIC, DISS. (UG/L) < 2.00 < 1.00 < 1 .00 < 1.00 BARIUM, DISS. (UG/L) < 200.00 600.00 BICARBONATE, DISS. (MG/L) BORON, DISS. (UG/L) 485.00 563.00 670.00 680.00 1111 .00 292.00 492.00 CADMIUM, DISS. (UG/L) < 2.00 3.00 < 0.20 CALCIUM, DISS. (MG/L) 484.00 471.00 517.00 512.00 480.00 490.00 486.00 CARBONATE, DISS. (MG/L) CHLORIDE, DISS. (MG/L) 46.00 68.00 72.00 23.00 84.00 56.00 71 .00 CHROMIUM, DISS. (UG/L) 30.00 130.00 100.00 CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 5855.00 5980.00 6110.00 4800.00 6300.00 6140.00 5920:00 COPPER, DISS. (UG/L) 20.00 50.00 < 10.00 30.00 16.00 FLUORIDE, DISS. (MG/L) 0.96 0.92 0.94 1.31 0.64 0.74 2.45 HARDNESS AS CAC03 (MG/L) 4647.00 4537.00 3788.00 5495.00 4695.00 4622.00 IRON, DISS. (MG/L) 0.99 0.07 0.92 0.90 0.43 LEAD, DISS. (UG/L) < 20.00 50.00 < 20.00 < 20.00 < 20.00 MAGNESIUM, DISS. (MG/L) 841.00 734.00 890.00 588.00 860.00 836.00 838.00 MANGANESE, DISS. (MG/L) 3.92 4.65 2.48 7.84 3.09 1.50 2.80 MERCURY, DISS. (UG/L) 20.00 20.00 < 0.02 0.04 0.04 < 0.02 MOLYBDENUM, DISS. (UG/L) 200.00 < 200.00 < 100.00 14.00 NICKEL, DISS. (UG/L) 30.00 20.00 30.00 50.00 NITROGEN, AMMONIA, DISS. (MG/L) < 0.10 0.71 1.32 0.52 NITROGEN, NITRATE, DISS. (MG/L) 0.01 1.33 2.42 1 .39 < 1.00 < 1 .00 0.03 NITROGEN, NITRITE, DISS. (MG/L) PH @ 25 DEG C 6.80 6.90 6.60 6.80 6.90 6,80 6.60 PHOSPHATE AS PO4, DISS. (MG/L) < 0.01 POTASSIUM, DISS. (MG/L) 28.00 22,00 27.00 6.00 23.00 23.00 25.00 SELENIUM, DISS. (UG/L) < 1 .00 < 1 .00 < 1.00 < 1.00 SILVER, DISS. (UG/L) 17.00 13.00 SODIUM, DISS. (MG/L) 228.00 199.00 214.00 108.00 209.00 207.00 195.00 SAR SULFATE, DISS. (MG/L) 4484.00 4346:00 4302:00 3429.00 4120.00 4542:00 4079:00 SULFIDE, TOTAL (MG/L)SUSPENDED SOLIDS (MG/L) 18.00 12.00 11 .00 5.00 7.OQ ZINC, DISS. (MG/L) 0.05 0.09 0.04 0.06 0.10 0.04 0.06 CATION/ANION BALANCE (%) (A DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 6830.00 6678.00 6890.00 5438.00 7100.00 6880.00 6676.00 Q DISS. DISSOLVED SOLIDS, CALCULATED (MG/L) ----------------------------------------- C INDICATES NO DATA co 00