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Sequoia 885 Jarvis 5037 <br /> Morgan Hill CA 95037 <br /> (408) 776-9600 <br /> Analytical FAX(408) 782-6308 <br /> Blaine Tech Services(Shell) Project Equiva Sampled 9/29/99 <br /> 1680 Rogers Avenue Project Number 341 East Main St Ripon Received 9/30/99 <br /> San Jose,CA 95112 - - Project Mafia eir Ueah Davis - -" --- _ Reported —10/18199- - - <br /> Tata/Ptirge'able Hydrocarbons(C6-C12),BTEX add_MT6E by DHS LUFT/Quallity ConIfr@ (r, <br /> Sequoia Analytical-Morgan Hill �M <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> IAnalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Satch 9100386 Date Prepared 10/13/99 Extraction Method_ EPA 5030.6[PITT <br /> Blank 9100386-BLK 1 <br /> Purgeable Hydiocarbons 10/13/99 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether __ ND - "_ _ _ 250 _ T <br /> Surrogate a a a-Trifluorotoluene 100 102 700-130 102 <br /> LCS 9100386-BSI <br /> Benzene 10/13/99 100 loo ug/I 700-130 100 <br /> Toluene 100 100 700-130 100 <br /> Ethylbenzene loo 103 700-130 103 <br /> Xylenes(total) _ _ _ 30 0 _ _ 302 _ _ 700-130 _ 101 <br /> Surrogate a,a,a Trifle om ohiene 100 104 70 0-130 104 T ! <br /> Matrix Spike 9100386-MS1 M910241-02 <br /> Benzene 10/13/99 100 ND 940 ugll 600-140 940 <br /> Toluene 100 ND 945 600-140 945 <br /> Ethylbenzene 100 ND 9 63 600-140 96.3 <br /> Xylenes(total) " _ 300 ND 27_9 _ "_- - - 600-140 930 <br /> Surrogate a,a,a Trrfluorotoluene 10 0 9 08 70 0-130 90 8 <br /> Matrix Spike Duca 9100386-MSDI M910241-02 <br /> Benzene 10/13/99 too ND 9 70 ug/l 600-140 970 25 0 314 <br /> Toluene loo ND 9 70 600-140 970 250 261 <br /> Ethylbenzene 10 0 ND 980 600-140 980 250 175 <br /> Xylenes(total)_-___ 30 0 _ ND 28 9 T _ 600-140 9_6_3_ _25 0 3 49__ <br /> Surrogate a a a-Trifluorotoluene _100 9 68 700-130 968 <br /> Sequoia Analytical -Morgan Full *Refer to end of report for text of notes and def nibons <br /> page 4 of 6 <br />