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Sequoia 680 Chesapeake Drive Redwood Gty,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988-9673 <br /> tical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> Analy <br /> =r <br /> Envlros Client Prol ID� Shell 6131 Paclflc, Stockton Sampled 09/1m6/97 L <br /> 270 Perkins Ave Sample Descrlpt MW-5-41' Received 09/19/97 E <br /> Sonoma, CA 95476 Matra SOLID Extracted 09/29/97 'L <br /> Ana[ysls Method EPA 8260 Analyzed 09/29/97 <br /> W <br /> —E-Attention _J-_G_aarde_r _-—_ _ _ _ Lab Number9709C09-04_ __ _______ Reported _1003f97 t- <br /> _ .., — —--- 1«••••••^««'1'R i1 niiitRlfifttitilfiiinSini JSifmmiiimii65niiii'i <br /> _ _f.«......« _ 1 __ <br /> r-r..................«..........5.�.x.iii............-.......1:...�.......«...........................«....3[µL......J <br /> CC Batch Number MS092997MTBEEXA <br /> Instrument ID F2 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/Kg ug/Kg <br /> Ethanol 50000 N D <br /> t-Butanol 5000 N D <br /> Metyl t-Butyl Ether{MTBE) 100 N D <br /> Di-lsopropyl Ether (DIPS) 100 N D <br /> Ethyl t.-Butyl Ether (ETB ) 100 N D <br /> t-Amyl Methyl Ether (TAME) 100 N D <br /> Surrogates Control Limits % % Recovery <br /> 1,2-Dlchloroethane-d4 70 121 94 <br /> I - <br /> I <br /> i <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN YTICAL - ELAP #1210 <br /> MiwdrRcry - - - -- - <br /> Project Manager Page 11 <br />