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r <br /> 1 <br /> f <br /> _ _ ___ _. _ ., _ .. ""' -- •. - " �,- � 404 N Wiget Lanef <br /> ` Sequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> FAX(925)988-966 <br /> Analytical www sequotalabs <br /> Gettler Ryan,Inc -Dublin i Project Chevron i <br /> 6747 Sierra Court Suite J Project Number Chevron# 9-8264 Reported <br /> Dublin CA,94568 Project Manager Deannal, Harding 12-Mar-01 08 00 <br /> Volatile Organic Compounds by EPA Method 8010B - Quality Control <br /> S <br /> Sequoia Analytical=WalnuC Creekx - <br /> Repartmg ' - -"�Spike'—Source" %REC�"- `-`RPD <br /> — Analyte__T_ Y __ T_.T _ ----Result LimitUnits _ Lcvel _Result „_%REC--Lmuts__ RPD Lunt,,,_ Notes _ <br /> Batch IB26012-EPA 5030B IP/TJ <br /> Blank(1B26012-BLK1) Prepared&Analyzed 26-Feb-01 <br /> - Chloromethane- - -- - - _ _ _ - ND - —20 - ug/l --- <br /> Vinyl chlonde ND 10 <br /> Bromornethane ND 12 <br /> Chloroethane ND 10 " <br /> TnchloroFluoromethane ND 060 , <br /> Freon 113 ND 10 " <br /> I J-Dichloroethene ND 1 0 <br /> Methylene chloride ND 10 - <br /> trans-l,2-Dichloroethene ND 10 " <br /> l,1-Dtchloroethane ND 10 " <br /> cts-l,2-Mchloroethene ND 10 - - - <br /> Chloroform ND 10 " <br /> f � t <br /> 1,1,1-Tnchloroethanc ND 10 <br /> Carbon tetrachlonde ND 1 0 " <br /> 1,2-Dichloroettme ND 16 " <br /> TneWoroethene ND 20 " <br /> 1,2-Dtchloropropane -ND=---- -_-!0 -- <br /> Bromodiddoromet_hanc_ ND__ I 0 _ <br /> cis-1,3-Dtchloropropene - -� -�- - _ NDS 10 - <br /> F <br /> tnuis-1,3-Drchloropropene - - -- -ND- - - 060 - <br /> 1,1,2-Tnehloroethane ND 050 " <br /> Tetrachloroethene ND 060 " <br /> Dibromochloromethane ND 050 - <br /> 1,2-Drbromoethane ND 10 " <br /> Chlorobenzene ND 10 " <br /> Bromoform ND 050 " <br /> 1,2,3-Tnchloropropane ND 050 " <br /> 1,1,2,2-Tetrachloroethane ND 060 " <br /> 1,3-Dichlorobenzene ND 050 " <br /> 1,4-Dichlorobenzene ND 12 " <br /> 1,2-Dichlorobenzene ND 12 " <br /> Surrogate Dtbromodiuorometharne 802 100 801 50-150 <br /> Surrogate 4-,BromoJluombernene 865 100 865 50-150 <br /> _ <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the smnples analyzed to accordance with the chat-o <br /> - custody document Thns a-alytncal report must be reproduced to its entirety <br /> Page 14 of 21 <br />