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:~z <br />ACZ lnbonatorier, lnc. <br />30400 Dawnhll! Drive <br />Steamhaa! Springs, CO 80487 <br />(800) 334-5493 <br />Lab Sample ID: L7175-01 <br />Client Sample ID: Gossard #1 Well <br />Client Project ID: 10680-95s <br />ACZ Report ID: RG15947 <br />Colowyo Coal Company <br />5731 Slate Highway 13 <br />Meeker, CO 81641 <br />Juan Gazcia Date Sampled <br />Date Received <br />Date Reported <br /> <br />Sample Matrix : 9/13/95 00:00 <br />: 9/!5/95 <br />: 10/5/95 <br /> <br />: Ground Water <br />Metals Anal sis <br /> m. <br />Arsenic, total recoverable M206.2 GFAA U mg/L 0.001 0.005 927/95 sh <br />Calcium, dissolved M200.71CP 104.0 mg/L 02 1 923/95 rd <br />Iron, total recoverable M200.7 (CP 0.01 B mg/L 0.01 0.05 10/4/95 rs <br />Lead, total recoverable M200.7 ICP U mg/L 0.02 0.1 10/4/95 rs <br />Magnesium, dissolved M200.7 ICP 129.0 mglL 0.2 I 923/95 rd <br />Afanganese, total recoverable tv1200 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 0.007 mg/L 0.001 0.005 923/95 jd <br />Sodium, dissolved M200.7 ICP 161.0 mgt 0.3 1 923/95 rd <br />Zinc, [oral recoverable M200.7 ICP 0.03 B mg/L 0.01 0.05 10/4/95 rs <br />Metals Pre <br />z ,~s~~~~~ t,iav4at:lydt~ -W~~~.t>.;."-~c~.;:rrnn.,..somnt~>_ r:~m.,•_.+,srnc~ ~[K_e1~;~dalmraE-:~rbmcsas <br />Total Recoverable Digestion M3005 ICP 922/95 jaw <br />Total Recoverable Diges[ion M3005 GFAA 922/95 jaw <br />Alkalinity as CaC03 h12320B <br />Bicarbonate az CaC03 461 mg/L 2 10 9/16/95 ss <br />Carbonate as CaC03 U mg/L 2 10 9/16/95 ss <br />Hydroxide as CaC03 U mg/L 2 10 9/16/95 ss <br />Total Alkalinity 461 mg/L 2 10 9/16/95 ss <br />Conductivity rQ25C M120.1 -Meter 1640 umhos/cm 1 10 9/16/95 ss <br />Hardnrss as CaC03 Calculation based on dissolved Mg & Ca 790 mg/L. 1 7 10/5/95 talc <br />Lab Filtration ••• 9/18/95 jaw <br />Lab Filvation&ACidification ••• 9/I 5/95 jaw <br />Nitrate as N, dissolved M353.2 -Automated 1.07 mg/L 0.02 0.1 9/16/95 ss <br />NivatcMivite as N, dissolved M353.2 -Automated Cadmium Reduc[io 1.07 mg/L 0.02 0.1 9/16/95 ss <br />Nivite as N, dissolved M353.2 -Automated U mg/L O.OI 0.05 9/16/95 ss <br />Nitrogen, ammonia M350.1 -Automated Phenare 0.23 B mg/L 0.05 0.3 9/19/95 hm <br />pH (lab) M9040-Elecvometric 7.8 units 0.1 0.1 9/16/95 ss <br />Phosphoms, total M365.1-Automated Ascorbic Acid (dige 0.019 B mg/L 0.005 0.03 925/95 ss <br />Residue, Filterable (TDS) tr 180C MI60.1 -Gravimetric 1220 mg/L 10 20 9/19/95 jk <br />Sodium Absorption Ratio in Water USGS - 11738-78 2.52 0.03 0.15 10/5/95 talc <br />Sulfate M375.3-Gravimctric 479 mg/L 4 8 923/95 jk <br />e ~ 't t <br />U =Analyze was analyzed for but not detected at the indicated MDL <br />IB =Analyze conccntmtion detected az a value between MDL and PQL <br />I <br />IPQL =Practical Quantization Limit <br />/~ / ~~~ <br />Vice President of Operations: Ralph Poulson <br />REPIN00103.95.01 Page 1 of 1 <br />