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ACZ ACZ tnhomlarics, tnc. Lab Sample ID: L7175-0! 30400 Downhi!lDrive Client Sample ID: Gossord #1 Well steamboat sp,irgs, Co 80487 Client Project ID: 10680-95s (800) 334-5493 ACZ Report ID: RG/5947 Colowyo Coal Company Date Sampled: 9/!3/95 00:00 5731 State Highway 13 Date Received: 9//5/95 Meeker, CO 81641 Date Reported: 10/5/95 Juan Gazcia Sample Matrix: Ground Water Metals Anal sis Arsenic, [oral recoverable M206.2 GFAA U mg/L. 0.001 0.005 9/27/95 sh Calcium, dissolved M200.7 ICP 104.0 mg/L 0.2 I 9/23/95 rd Iron, total recoverable M200.7 ICP 0.01 B mg/L 0.01 0.05 10/4/95 rs Lead, total recoverable M200.71CP U mg/L 0.02 0.1 10/4/95 rs Magnesium, dissolved M200.7 ICP 129.0 mg/L 0.2 I 923/95 rd A1anganese, total recoverable M200.7 ICP U mg/L 0.005 0.03 10/4/95 rs Mercury, total recoverable M245.I CVAA U mg/L 0.0002 0.001 9/26/95 jd Selenium, total recoverable SM 3500-Se C, AA-Hydride 0.007 mgR- 0.001 0.005 923/95 jd Sodium, dissolved M200.7 ICP 161.0 mg/L 0.3 I 923/95 rd Zinc, total recoverable M200.7 ICP 0.03 B mgR, 0.01 0.05 10/4/95 rs Metals Total Recovemble Digestion Total Recoverable Digestion Wet Chemist M3005 ICP M3005 GFAA r 922/95 9/22/95 jaw jaw Alkalinity as CaCO3 M2320B Bicarbonate as CaCO3 461 mg/L 2 10 9/16/95 ss Carbonate as CaCO3 U mg/L 2 10 9/16/95 ss HydroxidessCaCO3 U mg/L 2 10 9/16/95 ss Total Alkalinity 461 mg/L 2 10 9/16/95 ss Conductivity Cu 25C M120.1 -Meter 1840 umhos/em 1 10 9/16/95 ss Hardness as CaCO3 Calculation based on dissolved Mg & Ca 790 mg/L I 7 10/5/95 talc Lab Filtration ••• 9/18/95 jaw Lab Filtration & Acidification ••• 9/18/95 jaw Nitrate as N, dissolved M353.2 -Automated 1.07 mg/L 0.02 0.1 9/16/95 ss NivateMitrite as N, dissolved M353.2 -Automated Cadmium Reductio 1.07 mg/L 0.02 0.1 9/16/95 ss Nitrite as N, dissolved M353.2 -Automated U mg/L 0.01 0.05 9/16/95 ss Nitrogen, ammonia M350.1 -Automated Phonate 0.23 B mg/L 0.05 0.3 9/19/95 hm pH (lab) M9040-Electrometric 7.8 units 0.1 0.1 9/16/95 ss Phosphorus, [oral M365.1-Automated Ascorbic Acid (dige 0.019 B mg/L 0.005 0.03 9/25/95 ss Residue, Filterable (TDS)©IBOC MI60.1-Gravimevic 1220 mg/L 10 20 9/19/95 jk Sodium Absorption Ratio in Water USGS -11738-78 2.52 0.03 0.15 10/5/95 talc Sulfate M375.3-Gravimetric 479 mg/L 4 8 923/95 jk U =Analyze was analyzed for but not detected et the indicated MDL t MDL d PQL l b d n ~~~fff at B =Analyse concentration detecte e ween an a va ue /~ ~ PQL =Practical Quantization Limit Vice President of Operations: Ralph Poulson REPIN00103.95.01 Page 1 of 1