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

• Permit No: C1981008A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 4/11/1988
• Doc Name: Ground Water Quality Analysis Including Aquifer Statistics for Nucla & Proposed Nucla East Mining
• Section_Exhibit Name: Tab 7 Appendix 7-4
• Media Type: D
• Archive: Yes

NUCLA EAST MINE GROUND WATER QUALITY REPORT
SAMPLE POINT GW-N14(WB0014)
LOCATION 47N16W36DAC
GEOLOGIC UNIT DAKOTA COAL
DATE OF COLLECTION 07/15/86 10/14/86 01/28/87 04/29/87 10/29/87
FIELD PARAMETERS
CONDUCTIVITY (UMHOS/CM) 3200.00 3000.00 2900.00 3100.00 2780.00
PH (UNITS) 5.05 6.47 5.80 4.90 4.91
WATER TEMPERATURE (DEG C) 16.50 11.00 9.50 14.00 10.50
DEPTH TO WATER (FT) 60.01 59.31 64.23 64.96 60.32
LABORATORY PARAMETERS
ALKALINITY, DISS. (MG/L OF CAC03) 4.00 50.00 32.00 4.00 4.00
ALUMINUM, DISS. (MG/L) 12.00 0.16 0.44 6.31 8.60
ARSENIC, DISS. (UG/L) < 1.00 < 1.00 < 1.00 800 1.00
BARIUM, DISS. (UG/L) 20:00 10.00
BICARBONATE, DISS. (MG/L) 5:00 61:00 39.00 5.00 5.00
BORON, DISS. (UG/L) 80.00 430.00 300.00 490.00 470.00
CADMIUM, DISS. (UG/L) < 5.00 < 5.00 < 5.00 10.00 < 5.00
CALCIUM, DISS. (MG/L) 518.00 485.00 519.00 455.00 453.00
CARBONATE, DISS. (MG/L) 0.00 0.00 0.00 0.00 0.00
CHLORIDE, DISS. (MG/L) 8.00 13.00 11 .00 11.00 12.00
CHROMIUM, DISS. (UG/L) < 10.00 < 10:00 < 10.00
CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 3890:00 3770.00 3870.00 3980.00 3420.00
COPPER, DISS. (UG/L) < 10.00 < 10.00 < 10.00 < 10.00 < 10.00
FLUORIDE, DISS. (MG/L) 0.48 1.90 1.60 3.60 3.20
v HARDNESS AS CAC03 (MG/L) 3185.00 2885.00 2999.00 2913.00 2600.00
IRON, DISS. (MG/L) 52.30 51.50 51.30 61 .00 43.30
LEAD, DISS. (UG/L) 70.00 < 20.00 < 20.00 < 20.00 < 20.00
iv MAGNESIUM, DISS. (MG/L) 461.00 408.00 415.00 433.00 358.00
MANGANESE, DISS. (MG/L) 5.40 6.50 5.80 3.27 3.91
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) 120.00 180.00
NITROGEN, AMMONIA, DISS. (MG/L) 086 1:04 0:87 0.94 0.95
NITROGEN, NITRATE, DISS. (MG/L) < 0:02 < 0.02 0.02 0.06 1 .47
NITROGEN, NITRITE, DISS. (MG/L) 0.01
PH @ 25 DEG C 4:80 7:60 6:20 4.70 4.70
PHOSPHATE AS PO4, DISS. (MG/L) < 0.10 < 0.10 < 0.10
POTASSIUM, DISS. (MG/L) 19.00 18.00 17.00 16.00 21 .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) 7900 84:00 79.00 77.00 129.00
SAR 0:62 0.69 0.63 0.63 1 .11
SULFATE, DISS. (MG/L) 3120.00 3112.00 3219.00 3116.00 2718.00
SULFIDE, TOTAL (MG/L) < 0.20
SUSPENDED SOLIDS (MG/L) 44:00 6180:00 282:00 1080:00 86.00
cD ZINC, DISS, (MG/L) 0.74 0.32 0.32 0.40 0.54
<, CATION/ANION BALANCE (%) 1.39 3.77 3.51 2.94 U.64
in DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 4378.00 4290.00 4366.00 4444.00 4180.00
(D DISS, DISSOLVED SOLIDS, CALCULATED (MG/L) 4207.00 4150.00 4262.00 4094.00 3672.00
a
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C) INDICATES NO DATA
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