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885 Jarvis <br /> Sequoia Morgan Hill, CA 955037 <br /> (408) 776-9600 <br /> Analytical FAX (408) 782-6308 <br /> Blaine Tech Services(Shell) Project Shell(8 or more day TAT) Sampled 8/18/99 <br /> 1680 Rogers Avenue Project Number 990818-Y 1/440 W Charter Wy,, Stockton Received 8/19/99 <br /> San Jose,CA 95112 Project Manager Ann Pember Reported 9/8/99 <br /> wTotal Purgeable Hydrocarbons(C6-Cl2),BTEX and MTBE by DHS LUFT/Quality Control W <br /> V Sequoia Analytical-Morgan Hill _ <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> LCS Dun(continued) 9080886-BSD1 <br /> Xylenes(total) _ 8/25199 300 281 ug/1 _ __ 70 0-130 937 25 0 <br /> Surrogate a a a-Trifluorotoluene FF10 0 964 700-130 964 <br /> Batch 9080904 Date Prepared 8126/99 Extraction Method EPA 5030B IP/Tl <br /> Blank 9080904-B LKI <br /> Purgeable Hydrocarbons 8/26/99 ND ug/1 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> _Methyl Cert-butyl ether _ ND _ 250 - <br /> Surrogate a a a-Trihuorotoluene 100 107 700-130 107 <br /> 9080904-BSI <br /> 091able Hydrocarbons __ 8/26/99_____ ___ _ _ 231 ug/l T f 7_0_0-_130 <br /> Surrogate a a a-Trifluorotoluene 10 0 —13 0 700-130 130 <br /> Matrix Spike 9080904-MSI 9080722-01 <br /> Purgeable Hydrocarbons 8/26/99 250 ND 227_ ug/I 60_0-140 908 <br /> Surrogate a a,a-Trifluorotoluene-- - — '--- -- I0 0------- - --- II 6 -- "- 700-130 116 --- - - - -- - _ <br /> Matrix Spike Dup 9080904-MSD1 9080722-01 <br /> Purgeable Hydrocarbons 8/26/99 250 ND _ 197 _ ug/l __ 600-140 78 8 250 142 <br /> Surrogate a,a,a-Trifluorotoluene 100 11 1 700-130 111 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for text of notes and definitions <br /> Page 8 of 9 <br /> '4 <br />