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 STATISTICS REPORT
GEOLOGIC UNIT OVERBURDEN
OBSERVATIONS MEAN ST.DEV. MIN MAX
FIELD PARAMETERS
CONDUCTIVITY (UMHOS/CM) 15 3106.00 1385.44 1410.00 6100.00
PH (UNITS) 15 6.79 6.35 7.45
WATER TEMPERATURE (DEG C) 15 12.23 1.95 9.00 15.00
DEPTH TO WATER (FT) 15 34.18 10.90 13.89 51.17
LABORATORY PARAMETERS
ALKALINITY, DISS. (MG/L OF CAC03) 15 312.80 45.86 254.00 406.00
ALUMINUM, DISS. (MG/L) 15 0.06 0.04 0.05 0.21
ARSENIC, DISS. (UG/L) 15 1 .27 0.70 1 .00 3.00
BARIUM, DISS. (UG/L) 6 51.67 29.27 20.00 100.00
BICARBONATE, DISS. (MG/L) 15 381.60 55.89 310.00 495.00
BORON, DISS. (UG/L) 15 184.00 65.22 110.00 290.00
CADMIUM, DISS. (UG/L) 15 7. 13 7.23 5.00 33.00
CALCIUM, DISS. (MG/L) 15 501 .00 89.93 323.00 670.00
CARBONATE, DISS. (MG/L) 15 0.00 0.00 0.00 0.00
CHLORIDE, DISS. (MG/L) 15 9.93 10.75 1.00 36.00
CHROMIUM, DISS. (UG/L) 9 10.00 0.00 10.00 10.00
CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 15 3959.40 1748.46 1660.00 7280.00
COPPER, DISS. (UG/L) 15 10.00 0.00 10.00 10.00
FLUORIDE, DISS. (MG/L) 15 1.24 0.40 0.50 2.10
HARDNESS AS CAC03 (MG/L) 15 3472.87 2080.76 1144.00 7625.00
IRON, DISS. (MG/L) 15 0. 12 0.23 0.02 0.75
v LEAD, DISS. (UG/L) 15 26.67 17.99 20.00 80.00
MAGNESIUM, DISS. (MG/L) 15 541.53 535.77 77.00 1575.00
i MANGANESE, DISS. (MG/L) 15 0.29 0.31 0.01 1 .06
�-' MERCURY, DISS. (UG/L) 15 0.20 0.00 0.20 0.20
cn MOLYBDENUM, DISS. (UG/L) 15 50.00 0.00 50.00 50.00
NICKEL, DISS. (UG/L) 6 20.00 0.00 20.00 20.00
NITROGEN, AMMONIA, DISS. (MG/L) 15 0.26 0.25 0.02 0.76
NITROGEN, NITRATE, DISS. (MG/L) 15 3.38 5.00 0.02 12.34
NITROGEN, NITRITE, DISS. (MG/L) 3 0.01 0.00 0.01 0.01
PH @ 25 DEG C 15 7.54 7.30 7.80
PHOSPHATE AS PO4, DISS. (MG/L) 9 0.12 0.04 0.10 0.20
POTASSIUM, DISS. (MG/L) 15 8.27 5.70 2.00 18.00
SELENIUM, DISS. (UG/L) 15 4.93 6.79 1.00 22.00
SILVER, DISS. (UG/L) 9 10.00 0.00 10.00 10.00
SODIUM, DISS. (MG/L) 15 60.73 31.02 15.00 113.00
SAR 13 0.50 0.24 0. 15 1 .04
SULFATE, DISS. (MG/L) 15 3175.67 1942.68 875.00 6872.00
SULFIDE, TOTAL (MG/L) 3 0.20 0.00 0.20 0.20
SUSPENDED SOLIDS (MG/L) 15 461.87 534.23 36.00 1766.00
ZINC, DISS. (MG/L) 15 0.06 0.08 0.01 0.34
CATION/ANION BALANCE 15 -0.97 1.55 -3.33 1.52
(A DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 15 4613.47 2632.59 1494.00 10074
(D DISS. DISSOLVED SOLIDS, CALCULATED (MG/L 15 4479.20 2463.12 1479.00 9291.00
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