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ACZ <br />ACZ Iaboralories, /nc. Lab Sample ID : L4958-03 <br />30400 Downhill Drivc Client Sample 1D : Gossard #! We!! <br />Steamboat Sprtagr, CO 80487 Client Project 1D : PO#/0173-955 <br />(800) 334-5193 ACZ Report 1D : RG6493 <br />Colowyo Coal Company Date Sampled : 3/!5/95 <br />5731 State Highway 13 Date Received : 3//6/95 <br />Meeker, CO 81641 Date Reported : 3/3//95 <br />Jim Kiger <br /> Sample Matrix : Groand Water <br />Metals Anal sis <br />Arsenic, total recoverable M206.2 GFAA U mg/L 0.001 0.005 321/95 sh <br />Calcium, dissolved M200.71CP 101 mgrL 0.2 I 326/95 fp <br />Iron, total recoverable M200.71CP U mg/L 0.01 0.05 325/95 fp <br />Lead, total recoverable M200.7 ICP U mg/L 0.02 0.1 325/95 fp <br />Magnesium, dissolved M200.7 ICP 127 mg/L 0.2 1 326/95 fp <br />Manganese, mtal rccvverable M200.7 ICP U mg/L 0.005 0.01 325N5 fp <br />Mercury, total recoverable M245.1 CVAA U mg/L 0.0002 0.001 324/95 rd <br />Selenium, total recoverable SM 3500-Se C, AA-Hydride 0.005 mg/L 0.001 0.005 322/95 rd <br />Sodium, dissolved M200.7 ICP 154 mg/L 0.3 I 326/95 fp <br />Zinc, total recoverable M200.7 ICP U mgrL 0.01 0.05 325/95 fp <br />Mefals Pre <br />Total Recoverable Digestion M3005 ICP 320/95 jaw <br />Total Recoverable Digestion M3005 GFAA 320/95 jaw <br />Wet Chemist <br />Alkalinity as CeC03 M2320B <br />Bicarbonateu CaC03 454 mg/L 2 10 321/95 be <br />Carbonate as CaC03 U mg/L 2 ]0 321/95 be <br />Hydroxide es CaC03 ~ U mg/L 2 10 321/95 be <br />Total Alkalinity 454 mg/L 2 10 321/95 be <br />Conductivity Qa 25C M120.1-Meter 1940 umhos/cm I 10 3/17/95 be <br />Hardness as CaC03 Calculation based on dissolved Mg $ Ca 776 mpJL 1 7 3/31/95 sm <br />Lab Filtration •'• 3116195 kh <br />Lab Filtration$Acidification ••• 3/17/95 kh <br />Nitrate as N, dissolved M353.2 -Automated 1.12 mg/L 0.02 0.1 3/16/95 hm <br />NitrateMitrite az N, dissolved M353.2 -Automated Cadmium Reduction 1.12 mg/L 0.02 0.1 3/16/95 hm <br />Nitrite as N, dissolved M353.2 -Automated U mg/L 0.01 0.05 3/16/95 hm <br />Nitrogen, ammonia ~ M350.1 -Automated Phrnate 0.09 B mglL 0.05 0.3 321/95 hm <br />pH (lab) M9040 - Electrometric 7.7 units 0.1 0.1 3/17/95 be <br />Phosphorus, total M365.1-Automated Ascorbic Acid (digest 0.027 mg/L 0.005 0.03 3/17/95 hm <br />Residue, Filterable (TDS)®ISOC M160.1-Grevimetric 1300 mg/L IO 20 3/17N5 kh <br />Sodium Absorption Ratio in Water USGS - I173g-78 2.44 0.03 0.15 3/31/95 sm <br />Sulfate M375.3-Gravimetric 500 mglL 10 20 3/17/95 kh <br />U = Analyze was analyzsd for but not detected <br />B =Analyze wnantration detected et a value between MDL end PQL <br />~ <br />,/ ~~~ <br />r <br />PQL = Precticd Quantitntion Limit Vice President of Operations: Ralph Poulson <br />REPIN00103.95.01 Page t of 1 <br />