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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233•) <br /> 404 N Wiget Lane Walnut Creek CA 94598 (9Z5)z988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)9Zt-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> Cambria Environmental Project Shell Oil Co Sampled 1115/99 <br /> 270 Perkins St Project Number 880 Victor Rd -Lodi Received 1/18/99 <br /> Sonoma,CA 95476 Pro ect Manager Aubrey Cool Reported 1/26/99 <br /> BTEX,by 8020M/Quality Control ' <br /> i <br /> E y SequoeA <br /> a nalytecal=�Petalumair <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Linuts % Lirrut IN Notes* <br /> Batch 9010392 Date Prepared 1/22198 - Extraction Method EPA 5030 soils <br /> Blank 9010392-BLKI <br /> Benzene 1/22/99 ND ug/kg 200 <br /> Toluene ND 200 <br /> Ethylbenzene ND 200 <br /> Xylenes(total) ND 400 <br /> Surrogate a,a,a-Trifluorotoluene 300 328 109 <br /> Surrogate 4-Bromofluorchenzene 300 270 900 <br /> LCS 9010392-13S1 <br /> Benzene 1/22/99 200 214 ug/kg 107 <br /> Toluene 200 207 104 <br /> Ethylbenzene 200 205 103 <br /> Xylenes(total) 600 618 103 <br /> Surrogate a,a a-Trifluorotoluene 300 358 119 W <br /> Matrix Spike 9010392-MSI P901249-15 . <br /> Benzene 1/22/99 200 ND 191 ug/kg 95 5 <br /> Toluene 200 ND 187 93 5 <br /> Ethylbenzene 200 ND 185 925 <br /> Xvlenes(total) " _ _600= ND 558 93 0 _ <br /> Surrogate a a a-Triuorotoluene 300 329 110 <br /> Matrix Spike.Dup 9010392-MSD/ P901249-15 <br /> Benzene 1/22/99 200 ND 187 ug/kg 935 2 12 <br /> Toluene 200 ND 184 920 1 62 <br /> Ethylbenzene 200 ND 183 915 109 <br /> Xylenes(total) 600 ND 553 922 0 864 <br /> Surrogate a a a-Trifluorotoluene 300 321 107 <br /> Sequoia Analytical -Petaluma *Refer to end ofreport for text ofnotes and defnrt <br /> Page 6 of 8 <br />