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Sequoia 1561 Road <br /> San Carlos CAA 94070-4111 <br /> 4070 94070-41 I i <br /> m%ff Analytical FAX(650)232-9600 <br /> (650)232-9612 <br /> Blaine Tech Services Project Shell(2) Sampled 5/6/99 <br /> 1680 Rogers Avenue Project Number Shell 1267 Country Club,990506-X2 Received 5/7/99 <br /> San Jose,CA 95112 Project Manager Fran Thie Reported 5/21/99 <br /> i.•i rdµ ».,,.,wa ......,� �a� ...,,..._ ,_,r., _ w.. .,.,...d „.a.. .e._.....-....,.-,.,,. y m......_..;nr•�---r---- .,.-. � .. ..,w..�.,, ., ...................,.,.,.,._. --. ., ,.... m <br /> „ Volatile Orga,We t)aygiiked Camponnds by EPAaMethod 926©A/Qiahty C6n661 <br /> Sequoia 4yhcatl SanCarlos_ <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9050072 Date Prepared 5/17199 Extraction Method EPA 5030B [P/T <br /> Blank 9050072-BLKI <br /> Ethanol 5117/99 ND ug/l 1000 <br /> Tert-butyl alcohol 11ND " 200 <br /> Methyl tent-butyl ether ND 10200 <br /> Di-isopropyl ether ND to 200 <br /> Ethyl tert-butyl ether ND It <br /> 200 <br /> Tert-amyl methyl ether ND " 200 <br /> Surrogate 1,2-Drchloroethane-d4 500 533 to760-114 107 <br /> LCS 9050072-BS1 <br /> Methyl tert-butyl ether 5/17/99 500 520 ug/1 700-130 104 <br /> Surrogate 1,2-Drchloroethane-d4 of500 53 7 11760-114 107 <br /> Matrix Spike 9050072-MSI L905225-01 <br /> Methyl tert-butyl ether 5/17/99 500 ND 520 ug/1 600-140 104 <br /> Surrogate 1 2-Dichloroethane-d4 to500 561 760-114 112 <br /> Matrix Spike Dnp 9050072-MSD1 L905225-01 <br /> Methyl tert-butyl ether 5/17/99 Soo NO 524 ug/I 600-140 105 25 0 0 957 <br /> Surrogate 1 2-Dichloroethane-d4 of 500 507 to 760-114 101 <br /> Sequoia Analytical-San Carlos "Refer to end of report for text of notes and def nitior <br /> Page 10 of i <br />