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GRAND VALLEY COAL -- WATER SAMPLE ANALYSIS <br />LONG FORM - FOR ACTIVE MINING <br />SAMPLE SITE SW-1 DATE 12/27/94 TIME 1:10 PM <br />SAMPLED BY WALTI;RS <br />FIELD PARAMETERS <br />UNITS <br />PH 7.23 SU <br />TEMPERATURE 6.6 °C <br />SPECIFIC CONDUCTANCE 5.600 umhos/cm <br />OIL AND GREASE NONE <br />LAB ANALYSIS <br />DATE REPORTED 2/2/95 <br />ANALYZED BY: GRAND JUNCTION LABS DATE RECEIVED 12/27/94 _ <br />LAB SAMPLE N0. 2287 <br /> UNITS <br />PH 7.6 SU <br />TEMPERATURE 25 <br />SPECIFIC CONDUCTANCE 5600 umhos/cm <br />TOTAL SUSPENDED SOLIDS 417 mg/1 <br />TOTAL DISSOLVED SOLIDS 3680 mg/1 <br />TOTAL COMBUSTIBLE SOLIDS 563 mg/1 <br />TOTAL HARDNESS 1090 tng/1 <br />SODIUM ABSORPTION RATIO 10.936 <br />BICARBONATE (HC03) 540 mg/1 <br />CALCIL(M (Ca+2) 120 mg/1 <br />CARBONATE (C03) 0.0 mg/1 <br />CHLORIDE (C1) 13 mg/1 <br />MAGNESIUM (Mg) 192 _mg/1 <br />POTASSIUM (K) 8.6 mg/i <br />SODIUM (Na+) 830 mg/1 <br />SL(LFATE (S04) 2500 mg/1 <br />ALUMINL(M (A1) 0.113 mg/1 <br />ARSENIC (As) 0.000 mg/1 <br />BORON (B) O.Q45 _ _mg/1 <br />CADMIUM (Cd) 0.0000 mg/1 <br />COPPER (Cu) 0.004 mg/1 <br />IRON (Fe) 0.70 mg/1 <br />LEAD (Pb) 0.000 mg/1 <br />MANGANESE(Mn) 0.316 mg/1 <br />MERCURY (Hg) 0.00000 mg/1 <br />MOLYBDENUM (Mo) 0.002 mg/1 <br />SELENIUM (Se) 0.000 mg/1 <br />ZINC (Zn) 0.018 mg/1 <br />DATE TESTED ACCURACY <br />1/2/95 - <br />1/2/95 - <br />1/2/95 - <br />12/27/94 +/-50 <br />12/27/94 +/-386 <br />12/27/94 - <br />1/9/95 _.__ +/- 115 <br />1/4/95 +/- 5.4 <br />1/6/95 +/- 0.6 <br />1/4/95 +/- 12.5 <br />1/2/95 +/- 0.9 <br />1/2/95 +/- 41.5 <br />1/4/95 +/-113 <br />1/12/95 _ +/-0.004 <br />1/11/95 DL=0.001 <br />1/4/95 +/-0.005 <br />1/17/95._ DL=0.0002 <br />12~9L4 - X0.0002 <br />12/29/99 +/-0.03 <br />1/12/95 DL=0.001 <br />1/18/95 +/- 0.01 <br />1/4/95._.__ nL=0.00005 <br />1/9/95 <br />_1/17/95 <br />1/9/95 <br />+/-0.0003 <br />DL=0.005 <br />+/-0.0003 <br />DL = detection limit <br />