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:,~~z <br />ACZ [nbomtories, Inc. Lab Sample ID: L7I75-06 <br />3o4dd Downhill Drivr Client Sample ID: Taylor Creek <br />Steamboat Springs, CO 80087 Client Project ID: 10680-95s <br />(800) 334-5493 ACZ Report ID: RG75951 <br />Colowyo Coal Company Date Sampled: 9/13/95 00: 00 <br />5731 State Highway l3 Date Received: 9/15/95 <br />Meeker, CO 81641 Date Reported: 10/5/95 <br />Juan Garcia <br /> Sample Matrix: Surface Water <br />Metals Analysis <br /> <br />Arsenic, total recoverable M206.2 GFAA U mg/L 0.001 0.005 927/95 sh <br />Calcium, dissolved M200.71CP 103.0 mg/L 01 1 923/95 rd <br />Iron, total M200.71CP U mg/L 0.01 0.05 10/1/95 fp <br />Lead, total recoverable M200.7 ICP U mg/L 0.02 0.1 10/4/95 rs <br />Magnesium, dissolved M200.7 ICP 161.0 mg/L 0.2 1 9/23/95 rd <br />Manganese, total recoverable M200.7 ICP U mg/L 0.005 0.03 10/4/95 rs <br />Mercury, total recoverable M245.1 CVAA U mg/L 0.0002 0.001 ~ 926/95 jd <br />Selenium, total recoverable SM 3500-Se C, AA-Hydride 0.002 B mg/L 0.001 0.005 923/95 jd <br />Sodium, dissolved M200.71CP 131.0 mg/L 0.3 I 923/95 rd <br />Zinc, total recoverable M200.7 ICP 0.0] B mg/L 0.01 0.05 10/4/95 rs <br />Metals Pre <br /> <br />Total Digestion M3015 ICP 927/95 jaw <br />Total Rccoverable Digestion M3005 ICP 922/95 jaw <br />Total Rccoverable Digestion M3005 GFAA 922/95 few <br />Wet Chemist <br /> <br />Alkalinity az CaC03 M310.1 <br />Bicarbonate az CaC03 329 mg/L 2 10 9/16/95 ss <br />Carbonate az CaC03 17 mg/L 2 10 9/16/95 ss <br />Hydroxide az CaC03 U mg/L 2 10 9/16/95 ss <br />Total Alkalinity 345 mg/L 2 10 9/16/95 ss <br />Conductivity (a125C M120.1-Meter 1840 umhos/cm I 10 9/16/95 ss <br />Hardness az CaC03 Calculation hazed on dissolved Mg & Ca 919 mg/L 1 7 10/5/95 talc <br />Lab Filtration ••• 9/18/95 jaw <br />Lab Filtration & Acidification ••• ~ 9/18/95 jaw <br />Nitrate az N, dissolved M353.2 -Automated 0.06 B mg/L 0.02 0.1 9/16/95 ss <br />NivateMitrite az N, dissolved M353.2 -Automated Cadmium Rcductio 0.06 B mg/L 0.02 O.I 9/16/95 ss <br />Nitrite az N, dissolved M353.2 -Automated U mg/L 0.01 0.05 9/16/95 ss <br />Nitrogen, ammonia M350.1 -Automated Phonate U mg/L 0.05 0.3 9/19/95 hm <br />pH (iab) MI50.1 • Electrometric 8.4 units 0.1 0.] 9/16/95 ss <br />Phosphorus, total M365.1-Automated Ascorbic Acid (dige U mg/L 0.005 0.03 925/95 ss <br />Residue, Filterable (TDS)©IBOC M160.1-Gravimetrie 1360 mg/L 10 20 9/19N5 jk <br />Residue,Non-Filterable (TSS)Q103-SC M160.2-Gravimetrie U mg/L 5 20 9/19/95 sak <br />Sodium Absorption Ratio in Wuer USGS -11738-78 1.90 0.03 0.15 10/5/95 talc <br />Sulfate M375.3 - Gravimetrie 658 mg/L 4 8 923/95 jk <br />s z <br />U = Analyze was analyzed for but not detected at the indicated MDL ///~~~ ~f <br />B = Analyze concentration detected at a valve between hIDl and PQL /~~ / /~~ <br />IPQL =Practical Quantization Limit / ` Y <br />I Vice President of Operations: Ralph Poulson <br />REPIN00703.95.01 Page 1 of 1 <br />