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E <br /> Sequoia <br /> 1551 Industrial Road <br /> a ~ <br /> (] San Carlos, CA 94070-41 t 1 <br /> 4 '1 (650) 232-9600 <br /> D� Analytical FAX(650) 232-9612 <br /> Sequoia-Morgan Hill Project 1 Sampled 7/22/99 <br /> 885 Jarvis Drive Project Number 9070059(Blame) Received 8/2199 <br /> Morgan Hill,CA 95037 Project Manager Kayvan Kimyai R orted 8/5/99 1345 <br /> +r^?f x""^7ai�r 3� 3 •aa^, z''' * �m�.'" `- raor=+-sin r w.s,m5z. -z r e* r m'^m� re+<,Qt^,Compotmds�by,EPA�1VIethod°82bDA/ ualiyCantrol, a, <br /> Date Spike Sample QC Reporting Limit Reeov RPD RPD <br /> lAnalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9080018 Date Prepared 8/4199 Extraction Method EPA 5030B IPITI <br /> Blank 9080018-BLK1 <br /> Ethanol 8/4/99 ND ug/l 500 <br /> Tert-butyl alcohol ND 100 <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 1,2-Drchloroethane-d4 500 415 760-114 830 <br /> LCS 9080018-BSI <br /> Methyl tent-butyl ether 8/4/99 Soo 543 ug/I 700-130 109 <br /> Surrogate 12-Dichloroethane-d4 50 0 52 4 760-114 105 <br /> Matrix Spike 9080018-MSI L908003-02 <br /> Methyl tert-butyl ether 8/4/99 500 ND 484 ug/l 600-140 968 <br /> Surrogate 1,2-Drchloroethane-d4 It500 493 760-114 986 • <br /> Matrix Spike Dup 9080018-MSD1 L908003-02 <br /> Methyl tert-butyl ether 8/4/99 50 0 ND 47 3-ug/1 600-140 946 230 2.30 <br /> Surrogate 1,2-Drchloroethane-d4 500 514 760-114 103 <br /> Sequoia Analytical- San Carlos *Refer to end of report for text of notes and definitions <br /> ,p Page 5 of 6 <br />