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404 N Wiget Lane <br /> Sequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> FAX(925)988-%73 <br /> q"r Analytical www sequoialabs corn <br /> Gettler Ryan Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron 11 9-2033 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 12-Mar-01 07 45 <br /> Semivolatile Organic Compounds by EPA Method 8270C - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Nates <br /> Batch 1B20010-EPA 3510B Sep Funnel <br /> Blank(IB20010-BLK1) Prepared 20-Feb-01 Analyzed 23-Feb-01 <br /> I <br /> Surrogate Phenol-d6 398 ug/l 150 265 10-110 <br /> Surrogate Nitrobenzene-d5 969 100 969 35-114 <br /> Surrogate 2 Fluorobiphenyl 883 100 883 43-116 <br /> Surrogate 2 4 6-Tnbromophenol 141 150 '94 7 10-123 <br /> Surrogate p-Terphenyl--dl4 844 100 844 33-141 <br /> Blank(1B20010-BLK2) Prepared 21-Feb-01 Analyzed 23-Feb-01 <br /> Acenaphthene ND 50 ugll <br /> Acenaphthylene ND 50 " <br /> Anilme ND 50 <br /> Anthracene ND 50 " <br /> Benzoic acid ND l0 <br /> Benzo(a)anthracene ND 50 <br /> Benzo(b)fluoranthene ND 50 <br /> Benzo(k)fluoranthene ND 50 " <br /> Benzo(ght)perylene ND 50 " <br /> Benzo[alpyrene ND 50 -- <br /> Benzyl alcohol ND 50 <br /> BJs(2-chloroethoxy)nethane ND 50 " <br /> Bts(2-chloroethyl)ether ND 50 " <br /> Bis(2-chloroisopropyl)ether ND 50 " <br /> Bis(2-ethylhexyl)phthalate ND 10 " <br /> 4-Brornophenyl phenyl ether ND 50 " <br /> Butyl benzyl phthalate ND 50 " <br /> 4-Chloroanilme ND 25 " <br /> 2-Chloronaphthalene ND 50 " <br /> 4-Chloro-3-methylphenol ND 50 " <br /> i <br /> 2-Chlorophenol ND 50 " <br /> 4-Chlorophenyl phenyl-ether ND " <br /> Chrysene� y � ND _ —50-5 0 <br /> Diucn4 tan)anuiracene NO J V <br /> Dibenzofuran ND so " <br /> Di-n-butyl phthalate ND 10 <br /> 1 2-Dichlorobenzene ND 50 <br /> 1,3-Dichlorobenzene ND 50 " <br /> Sequoia Analytical-Walnut Cheek The results in this repon apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirely <br /> Page 17 of 25 <br />