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~cz ACZ LaEorwaricr, lnc. 3aoo oa»•rrnw o~.a Srertm6oN Springs, CO 80487 (800) 334-S,f93 Eastside Coal Company, Inc P.O. Box 161 SiIt,CO 8)652 Stephen Self Lab Sample ID: L66I3-02 Client Sample ID: Below the Mine Client Project lD: ACZ Report ID: RG14134 Date Sampled: 7/17/93 /3:30 Date Received: 7/28/95 Date Reported: 9/5/95 Sample Matrix: Surface Water Calcium, dissolved M200.7 ICP 73.3 mg/L 0.2 1 9/!N5 rd (tort, dissolved M200.71CP 0.14 mg/L 0.01 0.05 9/INS rd Magnesium, dissolved M200.7 ICP 27.2 mg/L 0.2 1 9/1/95 rd Potassium, dissolvcd M200.71CP 1.6 mg/L 0.3 I 9/INS rd Sodium, dissolved M200.71CP 7.1 mg/L 0.J I 9/INS rd Wet Chemist Alkalinity as CaC03 M310.1 Bicarbonate az CaC03 175 mg/L 2 10 8/1N5 jk Carbonate as CaC03 U mP/L 2 10 8/INS jk Hydroxide as CaC03 U mg/L 2 10 6/INS jk Total Alkalinity 175 mg/f. 2 10 8/1N5 jk ~ Conductivity aQ25C M120J -Meter 541 umhos/cm 1 IO 8/INS jk Fluoride M340.2 - ISE 0.2 B mg/t. 0.1 0.5 8/3/95 ko Leb Filtration ••• 7f29N5 jk Lab Filueticn & Acidification ••• 789/95 jk pH (lab) MI50.1 - Electrometrie 8.0 units 0.1 0.1 729N5 jk Residue, Filterable (TDS) QISOC M160.1 -Grevimezric 320 mg/L 10 20 7l31N5 ko Sulfate M375.3-Grevimetric l20 mrJL 10 20 8IIN5 kh 1 = .~.. ~:«.~: -~~ /e7.:; J ry/J '~7 :.~t~7. L -~l/1> ~~ 3 ( 4. /J= ZSS . ~ , , , , h ~ _ 7yl , , V --- ,--`73 3 ~?.~ : ./~/- ~%s/ -, , ~ .~ l G[~.l,b C9.3~S ~- 1 U =Analyze was analyzed for but not detected N the indicated MDL ~ B =Analyze concentration detcctM at a valae between MDL end PQL ' I {~ /n~ ~ JC_ /n1 _ 'C~ t RV Q PQL =Practical Quantiretion Limit Vice President of Operations: Ralph Poulson REPIN00103.95.0f Paga t of 1