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ID Sequoia 1551 Industrial Road <br /> San Carlos, CA 94070-4111 <br /> � Analytical (650) 232-9600 <br /> FAX (650) 232-9612 <br /> Blaine Tech Services Project Shell(2) <br /> 168J Rogers AvenueSampled 4/8/99 <br /> Project Number Shell 341 East Main St,Ripon Received 4/9/99 <br /> San Jose,CA 95112 Project Manager Fran Thie <br /> Reported 5112/99 <br /> PurgesEile Hydiocarboiis(C6-Cl2);ETEX add MTBE by DHS�LiJ1'T/QuaIiiy Conjr6l, -- <br /> �� a � b z <br /> Se ufl�a Anal Aca1=San Carlos <br /> q _ .� Oyt <br /> lAnalyte <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9040078 Date Pre ared 4/15/94 <br /> Blank Extraction Method EPA 50308 CP/Tl <br /> 9040078-BLKI <br /> Purgeable Hydrocarbons as Gasoline 4/15/99 ND ug/I 500 <br /> Benzene " ND " <br /> Toluene 0 500 <br /> Ethylbenzene ND 0 500ND 0 500 <br /> Xylenes(total) ND to0 500 <br /> Methyl Cert-butyl ether ND 5 00 <br /> Surrogate a aa-Tnfluorotoluene 100 796 70 0-130 796 <br /> LCS 9040078—BS1 <br /> Purgeable Hydrocarbons as Gasoline 4/15/99 250 219 ug/l 700-130 876 <br /> Surrogate a,a,a-Truorotoluene IO 0 7 76 10 700-130 776 �— <br /> Matrix x smoke 9040078-MSI L904077-04 <br /> geable Hydrocarbons as Gasoline 4/15/99 250 ND 241 ug/1 <br /> rogate a a,a-Trfluorotoluene 60 0-140 96 4 <br /> 10 0 748 700-130 748 <br /> Matnx Spike Duo 9040078-MSD1 L904077-04 <br /> Purgeable Hydrocarbons as Gasoline 4/15199 250 ND 236 ug/l 600-140 944 250 210 <br /> Surrogate a,a,a-Trfluorotoluene 100 113 700-130 Ila <br /> uota Analytical-San Carlos *Refer to end of report for text of notes and def nitrons <br /> Page 4 of 6 <br />