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fli680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650) 364-9233 <br /> • 404 N Wiget Cane Walnut Creek,CA 94596 (925)988-9600 FAX(925)988-9673 <br /> -� 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical <br /> w `c 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 industrial Road San Carlos, CA 94070-4111 (650)232-9600 FAX(650)232-96T2 <br /> e Tech Services Project SheIl(2) Sampled 4/8199 <br /> 0 Rogers Avenue Project Number Shell 1071 North Main St.,Manteca Received 4/9/99 <br /> San Jose,CA 95112 Project Manager Fran Thee Reported 5/4/99 <br /> rt � ToEal Purgeable�Rydr car60ns CC>MC 2 E'FEZXsand MTBE by VO-S I�ITFT%QnaliLy Cantt-ol s W - <br /> 7 -v a �11oi: Alla ytic 'S&!!Cal Ins x - <br /> _. <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Ltmtts % Limit % Notes* <br /> Matrix Spike continued 9040084-MSI L904115-07 <br /> Ethylbenzene 4/16/99 100 ND t03 ug/l 600-140 103 <br /> Xylenes(total) 300 ND 307 " 600-140 102 <br /> Surrogate a,a,a-Tnfluorotoluene 100 101 700-130 101 <br /> Matrix Spike Dun 9040084-MSDI L904115-07 <br /> Benzene 4/16/99 100 ND 974 ug/l 600-140 974 250 751 <br /> Toluene 100 ND 956 600-140 95 6 25 0 549 <br /> Ethylbenzene too ND 9 51 600-140 95 1 25 0 798 <br /> _Xylenes(total) 300 ND 28 5 600-140 95 0 25 0 7 11 <br /> Surrogate a,a,a-Trifluorotoluene 100 941 700-130 941 <br /> Sequoia Analytical-San Carlos *Refer to end of reportfor text of notes and definitions <br /> Page 6 of 13 <br />