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Sequoia 819 Striker Avenue,Suite <br /> ® Sacramento CA 958344 <br /> (916)921-9600 <br /> Analytical FAX equo921-01oo <br /> www sequoialabs wm <br /> D K ii-bel <br /> PE&Associates Prosect Western Oil &Spread-Acampo 5311132 <br /> 8710 t Vernon Rd Project Number NIA Reported <br /> AubuCA,95603 Project Manager Dan Barber 11;21/03 09 26 <br /> ' Extractable Hydrocarbons by EPA 8015B - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Uni(s Level Result %REC limits RPD Limit Notes <br /> Batch 3110255-EPA 3510C <br /> Blank(3110255-BLK1) Prepared&Analyzed 11/19/03 <br /> Diesel Range Organics(Cl0-C28) ND 50 ug/l <br /> Surrogate Ocracosane 225 200 112 50-150 <br /> Laboratory Control Sample(3110255-BS1) _ Prepared&Analyzed 11/19/03 <br /> Diesel Range Organics(C10-C28) 528 50 ug/i 500 106 60-140 <br /> Surrogate Octacosane 226 200 113 50-150 <br /> Laboratory Control Sample Dup(3110255-BSD1) _ Prepared&Analyzed 11/19/03 — ---— <br /> Diesel Range Organics(Cl0-C28) 526 _ 50 ug/l 500 105 60-140 04 50 <br /> Surrogate Ociacosane 229 200 114 50-150 <br /> 1 <br /> I <br /> 1 <br /> 1 <br /> quola Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> ' This analytical report must be reproduced in its entirety <br /> Page 5 of 8 <br />