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GRAND VALLEY COAL -- WATER SAMPLE ANALYSIS <br />LONG FORM - FOR ACTIVE MINING <br />SAMPLE SITE SW-1 DATE 6/30/95 TIME 3:10 PM <br />SAMPLED BY WALTERS <br />FIELD PARAMETERS <br />PH <br />TEMPERATURE <br />SPECIFIC CONDUCTANCE <br />OIL AND GREASE <br />LAB ANALYSIS <br />UNITS <br />8.70 SU <br />16.8 °C <br />1.550 umhos/cm <br />NONE <br />DATE REPORTED 8/24/95 <br />ANALYZED BY: GRAND JUNCTION LABS DATE RECEIVED 6/30/95 <br />LAB SAMPLE NO. 3833 <br /> UNITS <br />PH 8.35 SU <br />TEMPERATURE 25 ° <br />SPECIFIC CONDUCTANCE 1520 umhos/cm <br />TOTAL SUSPENDED SOLIDS 832 mg/1 <br />TOTAL DISSOLVED SOLIDS 1140 mg/1 <br />TOTAL COMBUSTIBLE SOLIDS 1020 mg/1 <br />TOTAL HARDNESS 394 mg/1 <br />SODIUM ABSORPTION RATIO 3.9056 <br />BICARBONATE (HCO3) 275 mg/1 <br />CALCIUM (Ca+2) 68 mg/1 <br />CARBONATE (CO3) 24.6 mg/1 <br />CHLORIDE (C1) 18 mg/1 <br />MAGNESIUM (Mg) 54 mg/1 <br />POTASSIUM (K) 5.1 mg/1 <br />SODIUM (Na+) 178 mg/1 <br />SULFATE (SO4) 500 mg/1 <br />ALUMINUM (A1) 0.000 mg/1 <br />ARSENIC (As) 0.000 mg/1 <br />BORON (B) 0.000 mg/1 <br />CADMIUM (Cd) 0.0007 mg/1 <br />COPPER (Cu) 0.009 mg/1 <br />IRON (Fe) 0.00 mg/1 <br />LEAD (Pb) 0.004 mg/1 <br />MANGANESE(Mn) 0.956 mg/1 <br />MERCURY (Hg) 0.00000 mg/1 <br />MOLYBDENUM (Mo) 0.02 mg/1 <br />SELENIUM (Se) 0.000 mg/1 <br />ZINC (Zn) 0.069 mg/1 <br />DL ° detection limit <br />DATE TESTED <br />7/5/95 <br />6/30/95 <br />7/5/95 <br />7/5/95 <br />7/5/95 <br />7/10/95 <br />7/7/95 <br />ACCURACY <br />+/-99.8 <br />+/-120 <br />+/- 41 <br />_ ~` <br />7/6/95 +/- 3.1 <br />7/6/95 +/- 0.8 <br />7/6/95 +/- 3.5 <br />7/7/95 +/- 0.6 <br />7/7/95 +/- 8.9 <br />7/7/95 +/-22.5 <br />7/11/95 DL=0.001 <br />7/7/95 DL=0.001 <br />7/12/95 DL=0.001 <br />7/21/95 +/-0.00003 <br />7/28/95 +/-0.0003 <br />7/10/95 DL=0.01 <br />7/15/95 <br />7/17/95 <br />7/12/95 <br />+/- 0.0002 <br />+/- 0.03 <br />DL=0.00005 <br />7/ 11 /95 <br />8/ 7/ 95 <br />7/ 28 /95 <br />+/-0.003 <br />DL=0.005 <br />+/-0.003 <br />