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885 Jarvis[]rive <br /> Morgan Hill,CA 95037 <br /> Sequoia 76 FAX(408)782-6308 <br /> Analytical ^ww-sequoialabs.com <br /> Blaine Tech Services(Shell) Project: Shell Sampled: 1/6100 <br /> 1680 Rogers Avenue Project Number: 341 Main St Received: 116100 <br /> San Jose, CA 95112 Project Manager: Nick Sudano Reported: 5122/00 16:09 <br /> MTBE by EPA Method 8260A/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: 0010262 Date Prepared: 11/10/00 Extraction Method: EPA 5030B IP/Tl <br /> Blank 0010262-BL K 1 <br /> Methyl tert-butyl ether 1110100 ND ugh 0.500 <br /> Surrogate: 1,2-Dichloroethane-d4 10.0 8.88 70-130 88.8 <br /> Blank 0010262-BLK2 <br /> Methyl-tert-butyl ether ill 1100 _ - _ ND ug/l 0.500 <br /> Surrogate: 1,2-Dichloroethane-d4 10.0 8.91 70-130 89.1 <br /> Blank 0010262-BLK3 <br /> Methyl tert-butyl ether 1112100 ND ug/l 0.500 <br /> Surrogate: 1,2-Dichloroethane-d4 10.0 8.31 10-130 83.1 <br /> LCS 0010262-BSI <br /> Methyl tert-butyl ether - --1110100 10.0 8.02 ug./l 70-130 80.2 <br /> Surrogate. ,',2-Dichloroethane-d4 10.0 - - 7.53 70-130 -75.3 <br /> LCS 0010262-BSZ <br /> Methyl tert-butyl ether 1111100 10.00 7.88 ug/l 70-130 78.8 <br /> Surrogate: 1.2-DiehIorOethane-d4 " 10.0 7.71 70-130 77.1 <br /> LCS 0010262-BS3 <br /> Methyl tent-butyl ether 1/12/00 10.0 7.38 ug/! 70-130 73.8 <br /> Surrogate: 1,2-Dichloroethane-d4 10.0 7.53 " 70-130 75.3 <br /> Matrix Snike 0010262-MSI_ M912750-02 <br /> Methyl tert-butyl ether 1/10100 2000 332.0 4900 ug/I 70-130 79.0 <br /> Surrogate: 1,2-Dichloroethane-d4 10.0 7.88 70-130 78.8 <br /> Matrix Spike Dup 0010262-MSDI M912750-02 <br /> Methyl tent-butyl ether 1110/00 2000 3320 4860 Ug/.1 70-130 77.0 25 0.820 <br /> Surrogate: 1,2-Dichloroethane-d4 10.0 7.55 70-130 75.5 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for text of notes and definitions. <br /> Page 5 of 8 <br />