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Sequoia 1551 Industrial Road <br /> San Carlos, CA 94070-4111 <br /> (650) 232-9600 <br /> Analytical <br /> FAX(650) 232-9612 <br /> i <br /> Blaine Tech Services Project Chevron(3) Sampled 6121/99 <br /> 1680 Rogers Avenue Project Number Chevron 9-3232/990621 R-2 Received 6123/99 <br /> San Jose,CA 95112 g Pyro ect Mana er Chnstine Lithe qn R ortged 7/7/99 09 51 <br /> �^...',.aa��s°�� �� �.: c4 v�w'""=��` yoµ .��� q.k ' 5.ca�� 015x: •� �' ''�a,r �� `��' .a�' �9�e�`�n3t , �� E . �l��.«s b �F <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Anal ed Level Result Result Units Recov Limits % Lumt % Notes* <br /> Batch 9060143 Date Prepared 6/25/99 Extraction Method EPA 5030E IPM <br /> Blank 9060143-BLK1 --— <br /> 1,2-Dibromoethane 6/25/99 ND ug/l 200 <br /> 1,2-Dichloroethane it ND to 200 <br /> Ethanol " ND " 1000 <br /> Tert-butyl alcohol ND It 200 <br /> Methyl tert-butyl ether " ND " 200 <br /> Di-isopropyl ether " ND It 200 <br /> Ethyl tert-butyl ether ND „ 200 <br /> Tert-amyl methyl ether ND11 200 <br /> Surrogate 1,2 Dichloroethane-d4 it 500 548 760-114 110 <br /> Blank 9060143-_BLK2 <br /> Ethanol 6/28/99 ND ug4 1000 <br /> butyl alcohol 91 ND It <br /> 200 <br /> yl tert-butyl ether to ND if 200 <br /> M-isopropyl ether ND „ 200 <br /> Ethyl tort-butyl ether " ND01 200 <br /> Tert-amyl methyl ether it ND 200 <br /> Surrogate 1,1-Dichlomethane-d4 500 556 760-114 111 <br /> Blank 9060143•BLK3 <br /> Ethanol 6/28199 ND ug/l 1000 <br /> Tert-butyl alcohol to ND 200 <br /> Methyl tert-butyl ether to ND 200 <br /> Di-isopropyl ether ND it 2.00 <br /> Ethyl tert-butyl ether ND „ 200 <br /> Tert-amyl methyl ether ND It 200 <br /> Surrogate 1,2-Dtchloroethane-d4 to 500 539 H 760-114 112 <br /> LCS 9060143-BS1 <br /> Methyl tert-butyl ether 6/25/99 500 447 ug/1 700-130 894 <br /> Surrogate 1,2-Dtchloroethane-d4 ly Soo 51 1 11 760-114 102 <br /> LCS 9060143-BS2 <br /> Methyl tert-butyl ether 6/28/99 600 53 7 119/1 700-130 895 <br /> Surrogate 1,2-Dtchloroethane-d4 if Soo 564 If 760-114 113 <br /> LCS 9060143-BS3 <br /> Methyl tert-butyl ether 6/28/99 500 466_ ug/l 700-130 93 2 <br /> Surrogate 1,2Dtchloroethane-d4 or 500 534 IF 760-114 107 <br /> Mom Analytical-San Carlos - - - *Refer to end of report for text of notes and definitions <br /> Page 7 of 9 <br />