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<br />ACZ laborararfer, lnc. <br />30400 DownhfA Drive <br />Stcamboat Springs, CO 80487 <br />(800) 334.5493 <br />Lab Sample iD: 19312-OI <br />Client Sample ID: NGSW <br />Client Project ID: W01897 <br />ACZ Report ID: RG24986 <br />Kennecott Energy-Colowyo Coal Co. L.P. <br />5731 State Hwy. 13 <br />Meeker, CO 81641-9199 <br />Kimberley A. Wolf <br />Date Sampled: 4/15/96 14:00 <br />Date Received: 4/17/96 <br />Date Reported: 4/24/96 <br />Sample Matrix: Ground Water <br />Arsenic, dissolved M7060 GFAA U mg/L 0.001 0,005 4/18/96 sh <br />Calcium, dissolved M60101CP 174.0 mg/L 0.2 1 4/19/96 rs <br />Iron, dissolved M60101CP 0.03 B mg/L 0.01 0.05 4/19/96 rs <br />Lead, dissolved M60101CP U mg/L 0.02 0.1 4/19/96 rs <br />Magnesium, dissolved M60I0 ICP 171.0 mg/L 0.2 1 4/19/96 rs <br />Manganese, dissolved Mb0101CP 0.265 mg/L 0.005 0.03 4/19/96 rs <br />Mercury, dissolved M7470 CVAA U mg/L 0.0002 0.001 422/96 jd <br />Selenium, dissolved SM 3500-Se C, AA-Hydride U mg/L 0.001 0.005 422/96 rd <br />Sodium, dissolved M60101CP 86.7 mg/L 0.3 I 4/19/96 rs <br />Zinc, dissolved M60101CP 0.02 B mg/L 0.01 0.05 4/19/96 rs <br />Wet Chemist <br /> <br />Alkalinity as CaC03 M2320B <br />~~ Bicarbonate az CaC03 530 mg/L 2 10 4/18/96 ss <br />Carbonate az CaC03 U mg/L 2 10 4/18/96 ss <br />Hydroxide az CaC03 U mg/L 2 10 4/18/96 ss <br />Total Alkalinity - ~ 530 mg/L 2 10 4/18/96 ss <br />Conductivity Q25C M9050-Meter 2130 umhos/cm I 10 4/19/96 sak <br />Hardness az CaC03 Calculation hazed on dissolved Mg & Ca 1140 mg/L 1 7 484/96 talc <br />Lab Filea[ion "' 4/17/96 jaw <br />Lab Filtration&Acidificazion ••• 4/17/96 jaw <br />Nitrate az N, dissolved M353.2 -Automated 0.19 mg/L 0.02 0.1 4/17/96 ss <br />NivareMivite az N, dissolved M353.2 -Automated Cadmium Rcductio 0.19 mg/L 0.02 0.1 4/17196 ss <br />Nitrite az N, dissolved M353.2 -Automated U mg/L 0.01 0.05 4/17/96 ss <br />Nitrogen, ammonia M350.1 -Automated Phonate 0.16 B mg/L 0.05 0.3 4/19/96 hm <br />pH (lab) M9040 - Electrometric 7.5 units 0.1 0.1 4/18/96 ss <br />Phosphorus, onho dissolved M365.1 -Automated Ascorbic Acid 0.008 B mg/L 0.005 0.03 4/17/96 ss <br />Residue, Filtereble (TDS) ~180C M160.1 - Grevimetric 1710 mg/L 10 20 4/17/96 sak <br />Sodium Absorption Ratio in Water USGS -11738-78 1.13 0.0J 0.15 4(24/96 talc <br />Sulfate M375.3-Gravimctric 750 mg/L 10 20 4/18/96 jk <br /> a5gt~88 <br /> ,y3 <br />0 <br />7 ~ <br /> ~ <br />i <br />~` ~ <br /> ~~ <br /> ~~'~ <br /> ~ <br />RECEIVED ~ <br /> o <br />= Analyze was analyad for but not detected at the indicatedT~ ,mac <br />=Analyze wncrntretion detected at a value between MDL and PQL <br />)L = Prectical Quantization Limit <br />~~k, / /~tr~f <br />Vice President of Operations: Ralph Poulson <br /> <br />REPIN701.03.95.0[ Page t of 1 <br />