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Sequoia 404 N , CA Lane <br /> Walnut Creek, CA 94598 <br /> al <br /> -y-fical - _ - - _ FAX(925)988-996073 <br /> Gettler Rvan IIIL -Dublin Project Unocal <br /> 6747 Sierra Court Suite. I Project Number Unocal 4 1205 Reported <br /> Dublin CA 94568 Project Manager Deaima L Harding 15-Feb-00 10 45 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical - Walnut Creep <br /> -- - - -- —Reporting'-- -- - --- — - - - — - -- <br /> Analyte Result Lirmt Unib, Dilution Batch Prepared Analyzed Method Notes <br /> MW4 (W0112059-05)W,itLr Sampled 31-Jan-00 11 10 Received 01-Feb-00 18 30 <br /> tert-Butyl alwhol ND 100 ugll 1 OB03024 03-Feb-00 03-Feb-00 EPA 8260A <br /> Methyl tert-butyl ether ND 20 <br /> Di-isopropvl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tert-Amvl methyl ether ND 20 <br /> 5ttrrogate Dthttmtolluoromethane 980 % 50-150 <br /> butrogate 12-Dtchloroethane-cN 106 % 50-150 <br /> Sequoia Analvacal - Walnut Creek 1&.m wN to Nus tr.1vi-r apply to the uunple%unaly_cd to(xcurckince wuh Nie churn of <br /> eetetudy doctunent Thtr awlyttccd report must he reproduced to ttr entirety <br /> 1 <br /> .111 K1-111 ,1 01,1100 )IIL'LtOr Page 5 of 11 <br />