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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N UCLA EAST MINE GROUND HATER QUALITY STATIS71C5 REPORT
GEOLOGIC UNIT DAKOTA COAL
OBSERVATIONS
FIELD PARAMETERS
CONDUCTIVITY (UMHOS/CM)
PH (UNITS)
HATER TEMPERATURE (DEC C)
DEPTH TO HATER (FT)
LABORATORY PARAMETERS
ALKALINITY, DISS. (MC/L OF CAC03)
ALUMINUM, DISS. (MG/L)
ARSENIC, DISS. (UG/L)
BARIUM, DISS. (UG/L)
BICARBONATE, DISS. (MG/L)
BORON, DISS, (UC/L)
CADMIUM, DISS. (UC/L)
CALCIUM, DISS. (MG/L)
CARBONATE, DISS, (MG/L)
CHLORIDE, DISS. (MC/L)
CHROMIUM, DISS. (UC/L)
CONDUCTIVITY ® 25 DEG C (UMIIOS/CM)
COPPER, DISS. (UC/L)
FLUORIDE, DISS. (MC/L)
HARDNESS AS CAC03 (MG/L)
IRON, DISS. (MC/l)
LEAD, DISS. (UC/L)
MAGNESIUM, DISS. (LAG/L)
MANGANESE, DISS, (MC/L)
MERCURY, DISS. (UG/L)
MOLYBDENUM, DISS. (UC/L)
NICKEL, DISS. (UC/L)
NITROGEN, AMMONIA, DISS, (FiG/L)
NITROGEN, NITRATE, DISS. (MC/L)
NITROGEN, NITRITE, DISS. (MC/L)
PH ® 25 DEC C
PIfOSPHA7E AS P04, DISS. (MG/L)
POTASSIUM, DISS. (MG/L)
SELENIUM, DISS. (UG/L)
SILVER, DISS. (UC/L)
SODIUM, DISS. (MC/L)
SAR
SULFATE, DISS. (MG/L)
SULFIDE, TOTAL (MG/L)
SUSPENDED SOLIDS (MG/L)
ZINC, DISS. (MG/L)
CATION/ANION BALANCE (°p')
DISS. DISSOLVED SOLIDS @ 180 DEG (MG/L)
DISS. DISSOLVED SOLIDS, CALCULATED (MG/L
INDICATES NO DATA
15
15
15
15
MEAN ST. DEV. MIN MAX
2356.67 603.26 1300.00 3200.00
5.30 4.68 10.28
12.85 2.31 9.50 77.80
41.64 17.76 15.69 64.96
95.40 190.25 0.00 750.00
3.50 5.10 0.05 15.10
7.67 7.91 1.OU 8.00
35.00 32.77 10.00 90.00
106.73 235.15 0.00 915.00
299.33 149.35 80.00 500.00
5.33 1.29 5.00 10. OCi
289.67 196.17 74.00 519.00
2.53 6.70 0.00 24.00
74.93 9.15 6.00 30.00
10.00 0.00 10.00 10.00
2890.00 792.46 7630.00 3980.00
10.00 0.00 10.00 10.00
1.34 1.01 0.17 3.60
1529.33 1162.13 56.00 3185.00
30.83 23.66 0.02 61.00
26.67 17.59 20.00 70.CIU
196.40 170.66 5.00 461.00
2.21 2.27 0.01 6.50
0.20 0.00 0.20 0.2Ci
50.00 0.00 50.00 50.00
66.67 67.72 20.00 180.00
1.83 1.34 0.64 5.76
0.13 0.37 0.01 1.47
0.01 0.00 0.01 0.01
5.16 4.50 9.80
0.12 0.04 0.10 0.20
14.73 3.75 9.00 21.00
1.00 0.00 1.00 1.00
10.00 0.00 10.00 10.00
233.07 252.52 37.00 676.00
6.55 10.61 0.47 33.05
1947.20 925.07 146.00 3219.00
0.20 0.00 0.20 0.20
776.73 7540.26 22.00 6180.00
0.30 0.26 0.01 0.80
-1.83 2.80. -5.86 3.46
2821.87 1789.28 1050.00 44+14.00
2746.07 7077.78 1058.00 4262.00