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Sequoia 1551 Industrial Road <br /> IDSan Carlos CA 94070-41 11 <br /> q4w Analytical {650} 232-9602 <br /> FAX(650) 232-9612 <br /> 0 <br /> Sequoia-Morgan Hill Project 1 Sampled 7127199 <br /> 885 Jarvis Dnve Project Number 9070121 Received 7131/99 <br /> Morgan Hill,CA 95037 Project Manager Kayvan Kimyai Reported 8/9/99 11 01 <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A/Quahty Control <br /> Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Matrix Spike 9080007-MSI L907304-15 <br /> Methyl tert-butyl ether 8/2/99 500 ND 520 ug/l 600-140 <br /> Surrogate 1,2-Dichloroethane-d4 11500 549 760-114 110 <br /> Matrix Spike Dun 9080007-MSDI L907304-15 <br /> Methyl tert-butyl ether 8/3/99 500 ND 542 ug/l 600-140 250 377 <br /> Surrogate 12-Dcchloroethane-d4 it500 547 11760-114 109 <br /> Batch 9080018 Date Prepared 8/4/99 Extraction Method EPA 5030B 1P/T1 <br /> Blank 9080018-BLK1 <br /> Ethanol 814/99 ND ug/l 1000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 1 2-Dichloroethane-d4 500 415 760-114 830 <br /> Blank 9080018-BLK2 <br /> Ethanol 8/5/99 ND ug/l 1000 <br /> ---Tertebuty1 alcohol. --. -- -- -- - " - -- - ---- ND "- -- -—200 <br /> -----200 <br /> Methyl tent-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 12-D►chloroethane-d4 500 516 760-114 103 <br /> LCS 9080018-BSI <br /> Methyl tert-butyl ether 8/4/99 500 543 ug/l 700-130 109 <br /> Surrogate 1 2-Dichloroethane-d4 11500 524 760-114 105 <br /> LCS - -- -- -9080018-BS2- - - -- - --- -- -- -- --- - - - - - - - ---- — — <br /> Methyl tert-butyl ether 815199 500 569 ug/l 700-130 114 <br /> Surrogate 12-Dcchloroethane-d4 f, 500 508 760-114 102 <br /> Matrix Spike 9080018-MSI L908003-02 <br /> Methyl tert-butyl ether 8/4/99 500 ND 484 ug/1 600-140 968 <br /> Surrogate 1 2-Dcchloroethane-d4 le500 493 760-114 986 <br /> Matrix Spike Dup 9080018-MSDI L908003-02 <br /> Methyl tert-butyl ether 8/4/99 500 ND 473 ug/l 600-140 946 250 230 <br /> Surrogate 1 2-Dichloroethane-d4 500 514 760-114 103 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and defcnitc <br /> Page 22 of 25 <br />