PERMFILE116165

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: NH1 TAB 7 APPENDIX 7-4 Groundwater Quality Analysis Including Aquifer Statistics
• Media Type: D
• Archive: Yes

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NUCLA MINE GROUND HATER QUALITY STATISTICS REPORT
GEOLOGIC UNIT DAKOTA COAL
OBSERVATIONS MEAN ST, DEV
FfELD PARAMETERS
CONDUCTIVITY (UMHOS/CM)
PH (UNITS)
HATER TEMPERATURE (DEG C)
DEPTH TO HATER (FT)
LABORATORY PARAMETERS
ALKALINITY, DISS. (MC/L OF CAC03)
ALUMINUM, DISS. (MG/L)
ARSENIC, DISS. (UC/L)
BARIUM, DISS. (UG/L)
DICARBOI7ATE, DISS, (MC/L )
BORON, DISS. (UG/l)
CADMIUM, DISS. (UC/L)
CALCIUM, DISS. (MC/L)
CARBONATE, DISS. (MG/L)
CIILORIDE, DISS. (MC/L)
CHROIAIUM, DISS. (UG/L)
CONDUCTIVITY ® 25 DEG C (UMHOS/CM)
COPPER, DISS. (UG/L)
FLUORIDE, DISS. (MC/L)
HARDNESS AS CAC03 (MG/L)
IRON, DISS. (MC/L)
LEAD, DISS. (UG/L)
MAGNCSIUM, DISS. (MC/L)
MANGANESE, DISS. (IqC/L)
MERCURY, DISS. (UC/L)
MOLYBDENUTA, DISS. (UC/L)
NICKEL, DISS. (UC/L)
NITROGEN, AMIdONIA, DISS. (MG/L)
NITROGEN, NITRATE, DISS. (MG/L)
NITROGEN, NITRITE, DISS. (MG/L)
PH @ 25 DEG C
PHOSPHATE AS P04, DISS. (MC/L)
POTASSIUM, DISS. (MG/L)
SELENIUM, DISS. (UG/L)
SILVER, DISS. (UC/L)
SODIUM, DISS. (MG/L)
SAR
SULFATE, DISS. (MC/L)
SULFIDE, TOTAL (MC/L)
SUSPENDED SOLIDS (MC/L)
ZINC, DISS. (MG/L)
CATION/ANION BALANCE (~)
DISS, DISSOLVED SOLIDS @ 180 DEC (MC/L)
DISS. DISSOLVED SOLIDS, CALCULATED (MC/L
INDICATES NO DATA
MIN MAX
14 4278.57 822.56 1640.00 4880.00
16 6.66 6.48 7.80
15 13.61 2.16 10.80 18.80
17 6.76 0.57 6.05 7.70
17 559.29 55.52 412.00 640.00
13 0.12 0.09 0.05 0.30
14 1.36 0.50 1,00 2.U0
4 207.50 275.85 10.00 600.00
10 674.60 51.26 534.00 720.00
17 466.47 205.91 280.00 7111.00
13 7.17 6.56 0.20 24.00
t7 476.24 26.01 418.00 517.00
10 0.00 0.00 0.00 0.00
17 54.71 13.54 23.00 84.00
5 56.00 55.50 10.00 130.00
17 5856.76 422.96 4800.00 6710.00
15 20.40 10.40 10.00 50.00
17 1.07 0.39 0.64 2.45
16 4797.69 437.99 3788.00 5680.00
15 1.18 0.63 0.07 2.19
15 42.00 51.44 20.00 190.00
17 863.78 708.12 588.00 1100.00
17 2.89 1.51 1.42 7.84
16 2.79 6.73 0.02 20.00
14 115.29 78.02 14.00 200.00
6 28.33 11.69 20.00 SO.OG
14 0.63 0.25 0.10 1.32
17, 0.46 .0..71, 0.01 2.42
1 0.01 0.01 0.01
17 6.84 6.60 7.30
9 0.12 0.08 0.07 0.30
17 23.76 5.04 6.00 29.00
14 1.50 0.65 1,00 3.00
4 12.50 3.32 70.00 17.00
77 210.72 30.60 708.00 261.00
10 1.39 0.13. 1.23 1.70
17 4382.41 309.59 3429.00 4860.00
1 0.20 0.20 0.20
15 23.80 23.79 5.00 84.00
17 0.06 0.02 0.02 0.10
10 1.29 1.96 -2.00 4.30
17 6701.29 357.91 5438.00 7100.00
10 6512.30 216.62 6252.00 6990.00