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th <br /> a) Sequoia 1455McDowPEBduma,CA9495� Analytical FAX <br /> (707) <br /> 792 0342 <br /> www scququoialabs coin <br /> Secor-Rancho Cordova Project Arco Site 4932,Stockton,CA P406416 <br /> 3017 Kilgare Road Suite 100 Project Number WR 63964 Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Henkosky 07/14/04 16 40 <br /> DRAFT: Purgeable Hydrocarbons by EPA 8015H -Quality Control <br /> Sequoia Analytical -Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limns RPD Limit Notes <br /> Batch 4060563-EPA 5030E waters <br /> Blank(4060563-BLKI) Prepared&Analyzed 06/25/04 <br /> Gasoline Range Organics(C4-C12) ND 50 ug/I <br /> Surrogate 4 Bromofluorobenzene 171 300 90 65-135 <br /> Laboratory Control Sample(4060563-BSI) Prepared&Analyzed 06/25/04 <br /> Gasoline Range Organics(C4 C12) 2100 50 ug/I 2750 76 65 135 <br /> Surrogate 4 Bromofluorobenzene 184 300 95 65 135 <br /> Matrix Spike(4060563-MSI) Source P406416-03 Prepared&Analyzed 06/25/04 <br /> Gasoline Range Organics(C4 C12) 2220 50 ugft 2750 130 76 65 135 <br /> Surrogate 4 Bromofluorobenzene 190 300 97 65-135 <br /> Matrix Spike Dup(4060563-MSDI) Source P406416-03 Prepared&Analyzed 06/25/04 <br /> Gasoline Range Organics(C4 C12) 2150 50 ugf! 2750 130 73 65 135 3 20 <br /> Surrogate 4 Bromofluorobenzene 180 " 300 93 65-135 <br /> DRAFT REPORT 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 /> Thu analytical report must be reproduced in its entirety <br /> Page 9 of 20 <br />