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 MINE GROUND WATER QUALITY REPORT (CONTINUATION)
SAMPLE POINT GW-N4(WA0004)
LOCATION 47N16W36BCC
GEOLOGIC UNIT DAKOTA COAL
DATE OF COLLECTION 06/23/83 10/27/83 05/29/84 10/18/811 05/30/85 10/17/85 05/22/86
FIELD PARAMETERS
CONDUCTIVITY (UMHOS/CM) 4880.00 4520.00 4850.00 4520.00 1640.00 4720.00
PH (UNITS) 6.80 6.60 6.60 6.70 6.55 6.65 6.58
WATER TEMPERATURE (DEG C) 15.50 13.00 16.00 13.00 14.50 13.00 15.00
DEPTH TO WATER ( FT) 6.97 6.56 7.70 6.24 7.33 6.14 7.58
LABORATORY PARAMETERS
ALKALINITY, DISS. (MG/L OF CAC03) 438.00 547.00 573.00 559.00 565.00 566.00 590.00
ALUMINUM, DISS. (MG/L) < 0.20 0.20 < 0.20 < 0.20 < 0.05 < 0.05 < 0.05
ARSENIC, DISS. (UG/L) < 2.00 < 2.00 < 2.00 < 2.00 < 1.00 1 .00 < 1.00
BARIUM, DISS. (UG/L)
BICARBONATE, DISS. (MG/L) 534.00 667.00 699.00 682.00 689.00 691 .00 720.00
BORON, DISS. (UG/L) 370.00 400.00 460.00 377.00 420.00 350.00 300.00
CADMIUM, DISS. (UG/L) 11.00 17.00 < 5.00 < 5.00 < 5.00 < 5.00 < 5.00
CALCIUM, DISS. (MG/L) 497.00 456.00 462.00 427.00 459.00 486.00 418.00
CARBONATE, DISS. (MG/L) 0.00 0.00 0.00 0.00 0.00 0.00 0.00
CHLORIDE, DISS. (MG/L) 53.00 57.00 51.00 53.00 46.00 52.00 49.00
CHROMIUM, DISS. (UG/L)
CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 5720.00 5500.00 6710:00 5620.00 5960:00 6090:00 6020:00
COPPER, DISS. (UG/L) 20.00 < 20.00 20.00 30.00 < 20.00 < 20.00 20.00
FLUORIDE, DISS. (MG/L) 0.99 1 .02 1.01 0.98 1 .07 1.04 0.88
11 HARDNESS AS CAC03 (MG/L) 4740.00 5090.00 4616.00 4930.00 5680.00 5233.00 4710.00
IRON, DISS. (MG/L) 1.51 1.39 1.76 1.80 1.80 2.19 1.50
LEAD, DISS. (UG/L) 140.00 190.00 < 20.00 < 20.00 30.00 < 20.00 < 20.00
v MAGNESIUM, DISS. (MG/L) 850.00 960.00 840.00 938.00 1100.00 980.00 894.00
MANGANESE, DISS. (MG/L) 2.58 2.39 2.36 2.80 2.82 2.60 2.21
MERCURY, DISS. (UG/L) < 1.00 < 1.00 < 0.50 < 0.50 < 0.50 < 0.20 < 0.20
MOLYBDENUM, DISS. (UG/L) 200.00 < 200.00 < 200.00 < 200.00 < 50.00 < 50.00 < 50.00
NICKEL, DISS. (UG/L)
NITROGEN, AMMONIA, DISS. (MG/L) 073 0.64 0.55 0.52 0.54 0.72 0.66
NITROGEN, NITRATE, DISS. (MG/L) 0..02 0.02 < 0.02 < 0.02 < 0.02 0.01 < 0.02
NITROGEN, NITRITE, DISS. (MG/L)
PH @ 25 DEG C 680 6.70 6.90 670 7. 10 6.70 7.30
PHOSPHATE AS PO4, DISS. (MG/L) < 0..10 < 0.30 < 0. 10 0..10 < 010 0.10 0.20
POTASSIUM, DISS. (MG/L) 24.00 24.00 24.60 24.30 28..00 26.00 22.00
SELENIUM, DISS. (UG/L) 3.00 < 2.00 < 2.00 < 2.00 < 2.00 < 2.00 < 1 .00
SILVER, DISS. (UG/L)
SODIUM, DISS. (MG/L) 213.00 203.00 224.00 222.00 210.00 230.00 230.00
SAR 1.36 1.25 1.45 1.39 1.23 1.40 1 .47
SULFATE, DISS. (MG/L) 4570.00 4450.00 4490.00 4730.00 4860.00 4437.00 4441 .00
SULFIDE, TOTAL (MG/L)
SUSPENDED SOLIDS (14G/L) 16.00 10.00 2400 1000 22.00 2200 12.00
c ZINC, DISS. (MG/L) 0.10 0.08 0..09 0..08 0.05 0..02 0.05
CATION/ANION BALANCE 1.80 2.30 2.20 1.51 3.56 4.30 0.72
DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L) 6710.00 6820.00 6800.00 6900.00 6830.00 6750.00 6818.00
a DISS. DISSOLVED SOLIDS, CALCULATED (MG/L) 6480.00 6490.00 6380.00 6740.00 6990.00 6569.00 6408.00
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