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Sequoia los Industrial Road <br /> San Carlos CA 94070-41 d I <br /> Analytical (650) 232-9612 <br /> FAX(650) 232-9612 <br /> Sequoia-Morgan Hill Project Blaine/EQUIVA Sampled 8/18/99 <br /> 885 Jarvis Drive Project Number 9080662 Received 8/21/99 <br /> Morgan Hill,CA 95037 Project Manager Kayvan Kim ai Reported 9/1/99 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Qualsty Control <br /> Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Ana]yte Analyzed Level Result Result Units Recov Limas % Limit % Notes* <br /> Matrix Spike Du continued 9080156-MSD1 L908169-07 <br /> Surrogate a a a-Trifluorotoluene 8/27/99 100 742 u9/1 700-130 742 <br /> Batch 9080161 Date Prepared 8/30/99 Extraction Method EPA 5030B IP/Tl <br /> Blank 9080161-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 8/30/99 ND ug/1 500 <br /> Benzene ND it 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 5 00 _ <br /> Surrogate a s a-Trifluorotoluene 0100 9 89 700-130 98 9 <br /> LCS 9080161-BSI <br /> Benzene 8/30/99 100 9 11 ug/I 700-130 91 1 <br /> Toluene 100 925 700-130 925 <br /> Ethylbenzene 100 926 700-130 926 <br /> Xylenes(total) 300 279 700-130 93 0 <br /> Surrogate a,a a-Triuorotoluene 100 930 700-130 93 0 <br /> Matrix Spike 9080161-MSI L908177-02 <br /> Benzene 8/30199 10 0 ND 8-78ug/]60 0-140 87 8 <br /> Toluene 100 ND 897 600-140 897 <br /> Ethylbenzene 100 ND 903 600-140 90.3 <br /> Xylenes(total) 300 ND 270 600-140 900 <br /> Surrogate a a,a-TriJluorotoluene 100 932 700-130 932 <br /> Matrix Spike Dup 9080161-MSDI L908177-02 <br /> Benzene _ 8/30/99 100 ND 8 93 ug/l 600-140 893 250 169 <br /> Toluene 100 ND 8 90 600-140 890 250 0 783 <br /> Ethylbenzene 100 ND 902 600-140 902 250 0 111 <br /> Xylenes(total) 300 ND 270 600-140 900 25 0 0 <br /> Surrogate a a,a-Triuorotoluene 10 0 909 700-130 909 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definttio <br /> Page 13 of 14 <br />