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arvis <br /> rive <br /> Sequoia Morgan 8Hl ICA 95037 <br /> (408) 776-9600 <br /> Analytical FAX (408) 782-6308 <br /> Blaine Tech Services(Shell) Project Equiva Sampled 8/30199 <br /> I680 Rogers Avenue Project Number 3725 South Tracy Blvd Received 8/31199 <br /> San Jose,CA 95112 Project Manager Ann Pember Reported 9/15/99 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> 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 /> Batch 9090255 Date Prepared 9/10199 Extraction Method EPA 5030E IP/Tl <br /> Blank 9090255-BLKI <br /> Purgeable Hydrocarbons 9/10/99 ND ug/l 50 0 <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 <br /> Surrogate a,a,a-Trifluorotoluene 100 113 700-130 113 <br /> LCS 9090255-BSI <br /> Purgeable Hydrocarbons _ 9/10_/_9_9_ 250 __ _ 251 ug_/I __ 70 0_-130 _ 100 <br /> Surrogate a a a-Triuorotoluene 100 145 700-130 145 2 <br /> ix S ike 9090255-MSI 9090038-03 <br /> _ able Hydrocarbons _9/10/99 250_ ND 270 ug/I� 600-140 108 _ <br /> ,Surrogate a a a-Trifluorotaluene 100 144 700-130 144 �2 <br /> Matrix Spike Dui) 9090255-MSDI 9090038-03 <br /> Purgeable Hydrocarbons 9/10/99 250 ND 280 ug/l 60_0-14_0 11_2_ 25 0 364 _ <br /> Surrogate aaa-Trefluorotoluene 100 f T 13 5 " -� -�- 70 0-130 135 T - T- - - ^T-2 <br /> I <br /> Sequoia Analytical-Morgan Hill *Refer to end ofreport for text of notes and definitions <br /> Page 4 of 6 <br />