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Q Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiger Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 19 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 'I McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> Cambria Environmental Project Shell Oil Co Sampled 1/14/99 to 1115199 <br /> 270 Perkins St Project Number 880 Victor Rd-Lodi Received 1/18/99 <br /> Sonoma,CA 95476 Project Manager Aubrey Cool Reported 1128/99 <br /> Volatile Organic Coimpounds by EPA Method 8260B/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Linuts % Limit % Notes* <br /> Batch 9010346 Date Prepared 1120/99 Extraction Method EPA 5030 soils <br /> Blank 9010346-BLK1 <br /> Tert-amyl methyl ether 1120/99 ND ug/kg 500 <br /> Tert-butyl alcohol ND 100 <br /> Di-isopropyl ether ND 500 <br /> 1,2-Dibromoethane(EDS) ND 500 <br /> 1,2-Dichloroethane ND 500 <br /> Ethanol ND 200 <br /> Ethyl tert-butyl ether ND 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate Dtbromofluoromethane 500 420 800-120 84 0 <br /> Surrogate 1,2-Dichloroethane-d4 500 412 800-120 82 4 <br /> Surrogate Toluene-d8 500 421 810-117 84 2 <br /> Surrogate 4-Bromofluorobenzene Soo 43 7 740-121 874 <br /> Isk 9010346-BLK2 <br /> Tert-amyl methyl ether 1122199 ND ug/kg 500 <br /> Tert-butyl alcohol ND 100 <br /> Di-isopropyl ether ND 500 <br /> 1,2-Dibromoethane(EDB) ND 500 <br /> 1,2-Diehl oroethane ND 500 <br /> Ethanol ND 200 <br /> Ethyl tert-butyl ether ND 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate Dtbromofluoromethane 500 44 0 800-120 88 0 <br /> Surrogate 12-Dichloroethane-d4 500 42 7 800-120 85 4 <br /> Surrogate Toluene-d8 500 451 810-117 902 <br /> Surrogate 4-Bromofluorobenzene 500 451 740-121 902 <br /> LCS 9010346-BSI <br /> Methyl tert-butyl ether 1120199 Soo 45 8 ug/kg 700-130 91 6 <br /> Surrogate Dtbromofluoromethane 500 451 800-120 902 <br /> Surrogate 1,2-Dichloroethane-d4 500 43 7 800-120 874 <br /> Surrogate Toluene-d8 500 43 9 81 0-117 878 <br /> Surrogate 4-Bromofluorobenzene It 500 46 2 740-121 92 4 <br /> LCS 9010346-BS2 <br /> Methyl tert-butyl ether 1/22/99 500 45 8 ug/kg 700-130 91 6 <br /> Surrogate Dtbromofluoromethane It50 0 443 " 800-120 886 <br /> Surrogate 1 2-Dichloroethane-d4 500 443 800-120 886 <br /> Surrogate Toluene-d8 500 451 81 0-117 902 <br /> gate 4-Bromofluorobenzene 500 459 740-121 918 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> Page 16 of 20 <br />