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E <br /> s <br /> RU SS A SSOCLA n.,s <br /> Mr.John Randall <br /> Seplembcr 1, 1989 <br /> CHEMICAL ANALYSES <br /> The ground water samples were analyzed for total purgeablc pctroleunt hydrocarbons <br /> ('TPI'H) by modified CPA Method 8015 and for benzene, ethylbenzenc, toluelte and xylenes <br /> (BETX)by EPA hletlrod 8020. The results of the water analysis arc presented in Table 2 and <br /> the analytic reports are in ' <br /> A cludr.d as Attachment C. <br /> Analytic results for this quarter show hydrocarbon ` <br /> y arbon concentrations in water samples <br /> from the three site wells sampled at historic highs. Well MW-2, showed the highest <br /> hydrocarbon concentrations and thernost significant increase from March 19&9 concentrations. <br /> TPPH concentrations in this well rose from 1,300 ppb in March 1989 to 80,000 ppb for this <br /> sampling. <br /> We appreciate the opportunity to provide hydrogcologic consulting services to Chevron <br /> and trust that this report meets your needs. If you have any questions,please call Joe'Theisen. <br /> �S��ftt Sincerely, <br /> ct�4��42D (ate <br /> Weiss Associates <br /> EG At 7,4 <br /> �} FNCa re7ffi,Fp Robert E. Kitay <br /> �, Gfp ERrk6 Staff Geologist <br /> t LOCrsr � <br /> alt'OF <br /> ' C4LIY0 -� <br /> Richard B. Weiss <br /> Principal Hydrogcologist <br /> REKIRMag <br /> F:1ALL%Cl]EV 1305L5AG9,W P <br /> Attachments:A -Water Sample Collection Records <br /> B-Chain of Custody <br /> C-Analytic Reports <br />