HYDRO22714

• Permit No: C1980004
• IBM Index Class Name: Hydrology
• Doc Date: 3/29/1995
• Doc Name: WATER SAMPLING REPORT
• Permit Index Doc Type: OTHER SURFACE WATER
• Media Type: D
• Archive: No

GRAND VALLEY COAL -- WATER SAMPLE ANALYSIS
LONG FORM - FOR ACTIVE MINING
SAMPLE SITE SW-8 DATE 3/29/95 TIME 1:10 PM
SAMPLED BY WALTERS
FIELD PARAMETERS
UNITS
PH 8.79 SU
TEMPERATURE 4.4 °C
SPECIFIC CONDUCTANCE 1.750 umhos/cm
OIL AND GREASE NONE
LAB ANALYSIS
DATE REPORTED 5/3/95
ANALYZED BY: GRAND JUNCTION LABS DATE RECEIVED 3/29/95
LAB SAMPLE N0. 3083
UNITS DATE TESTED ACCURACY
PH 8.35 SU 3/29/95 -
TEMPERATURE 25 ° 3/29/95 -
SPECIFIC CONDUCTANCE 2070 umhos/cm 3/29/95

TOTAL SUSPENDED SOLIDS 246 mg/1 3/29/95 +/-29.5
TOTAL DISSOLVED SOLIDS 1490 mg/1 3/29/95 +/-156
TOTAL COMBUSTIBLE SOLIDS 1460 mg/1 3/29/95 -
TOTAL HARDNESS 679 mg/1 4/5/95 +/- 71

SODIUM ABSORPTION RATIO 2.504 -
BICARBONATE (HC03) 307 mg/1 -
CALCIUM (Ca+2) 94 mg/1 4/3/95 +/- 4.2

CARBONATE (C03) 23.6 mg/1 -
CHLORIDE (C1) 11 mg/1 4/3/95 +/- 0.5
MAGNESIUM (Mg) 108 mg/I 4/3/95 +/- 7

POTASSIUM (K) 4.0 mg/1 4/5/95 +/- 0.4
SODIUM (Na+) 150 mg/1 4/5/95 +/- 7.5
SULFATE (S04) 723 mg/1 4/3/95 +/-32.5

ALUMINUM (A1) 0.020 mg/1 3/31/95 +/-0.0007
ARSENIC (As) 0.000 mg/1 4/6/95 DL=0.001
BORON (B) 0.050 mg/1 3/31/95 +/-0.005

CADMIUM (Cd) 0.0000 mg/1 4/28/95 DL=0.0002
COPPER (Cu) 0.005 mg/1 4 11 95 1-0.0002
IRON (Fe) 4.23 mg/1 3 31 95 +/-0.15

LEAD (Pb) 0.002 mg/1 4/4/95 +/- 0.0001
MANGANESE(Mn) 0.237 mg/1 4/24/95 +/- 0.008
MERCURY (Hg) 0.00000 mg/1 3/4/95 DL=0.00005

MOLYBDENUM (Mo) 0.004 mg/1 4/4/95 +/-0.0005
SELENIUM (Se) 0.000 mg/1 4/25/95 DL=0.005
ZINC (Zn) 0.008 mg/1 4/6/95 +/-0.0003
DL - detection limit