REP47307

• Permit No: C1981008
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: TABLE OF CONTENTS
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

' GROUND WATER QUALITY PARAMETERS
SITE GW-N14
FORMATION DAKOTA COAL
' DATE OF COLLECTION 09/02/93 05/19/93
FIELD PARAMETERS
Conductivity (UMHOS/CM> 1770 1125
pH 4.65 7.02
Water Temperature (DEG C) 19 17.0
'
LABORATORY PARAMETERS
ACIDITY, DISS. (mg/1 OF CAC03> 158 190
' ALKALINITY, DISS. (mg/1 OF CAC03) 0 O
ALUMINUM, DISS. (mg/1) 19.2 18.8
' ARSENIC, DISS. (µg/1)
BARIUM, DISS. (µg/I) 12 -1
-10
BICARBONATE, DISS. (mg/1) 0 0
BORON, DISS. (µg/1) 490 440
' CADMIUM, DISS. (µg/1) -5 -5
CALCIUM, DISS. (mg/1) 487 447
CARBONATE, DISS. (mg/1) O 0
CHLORIDE, DISS. <mg/1) 9 10
t CONDUCTIVITY a 25 DEG C (UMHOS/CM) 3610 4040
COPPER, DISS. (µg/1) -10 -10
FLOURIDE, DISS. (mg/1) 3.7 4.4
' HARDNESS AS CAC03 (mg/1) 2829
IRON, DISS. (mg/1) 26.9 48.8
IRON, TOTAL (mg/1> 62.4 49.0
LEAD, DISS. (µg/1) -20 -20
' MAGNESIUM, DISS. (mg/1) 393 386
MANGANESE, DISS. (mg/1) 5.39 5.15
MANGANESE, TOTAL (mg/1) 6.83 4,73
' MERCURY, DISS. (µg/1) -0.2 -0.1
MOLYBDENUM, DISS. (µg/1) 3 -1
NICKEL, DISS. (µg/1> 170 180
NITROGEN, AMMONIA, DISS. (mg/1) 1.39 1.27
NITROGEN, NITRATE, DISS. (mg/1) -0.02 0.04
NITROGEN, NITRITE, DISS. (mg/1) -0.02 -0.01
PH a 25 DEG C 3.3 3.6
' PHOSPHATE AS P04, DISS. (mg/1) -0.1 -0.1
POTASSIUM, DISS. (mg/1) 17 15
SELENIUM, DISS. (µg/1) -1 -2
' SODIUM, DISS. (mg/1) 68 67
SODIUM ADSORPTION RATIO 0.556 0.561
SULFATE, DISS. (mg/1) 3038 2741
' SULFIDE, TOTAL (mg/1> 0.03 0.14
TOTAL SUSPENDED SOLIDS lmg/1)
ZINC, DISS. (µg/1) 500 520
CATION/ANION BALANCE (%) -3.26 -0.43
1 TOTAL DISSOLVED SOLIDS a 180 DEG (mg/1) 3952 4376
TOTAL DISSOLVED SOLIDS, CALCULATED (mg/1) 3992
LITHIUM, DI5S. (mg/1) 0.54 0.91
' COBALT, DISS. (mg/1) 0.12 0.12
BERYLLIUM, DISS. (mg/I> 0.055 0.054
VANADIUM, DISS. (mg/1) -0.01 -0.01
C-5