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SEQUOIA ANALYTICAL <br /> 660 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> .....o..v....s.................... .. c{ ...v:......}....v.....:.,.....0-..:...........}.. .....t......,.........,.................:.»... .:..;. �,.,.v.:oSf•ox^9:? "' x ny� : :.:. �ryryyy,, <br /> i4....................,.,..r.....n.nnY..ski:.r-.4.v��t.:..............................v.................v.v,................v....... -:- .{W... ..:)::..:...::::.v::.:.:::.�:::::�f:2�iR-:�i.�ti:2iO;�,j!:".:1 i.f'.^S�{'i.}.i{i{tiViO::.Y... .�?�t',?h}:A <br /> ` RESNA Client Project ID: 8181 E. 11thrySt.,Tracy „A <br /> rs 1710 Main Street }" <br /> {{{ <br /> "Escalon, CA 95320 <br /> r. y <br /> Attention: Lois Frantz OC Sample Group: 2109764-5 Reported: Oct 12, 1992 <br /> -oxum:}�:{cb uxox{o.3'..v:..:.... .... -.,: s.:rn..o..rr>'s G`•,.:n: ':.s:o�ss»:::v.o. <br /> ::,,�:.,�:n�n�::::?:rr::ri„ri.,�r.r.:nvn:ao`.�'`of.:hodkt:.::?�:.::.,..v-:...._.,:::^.^F:S:�F.:::::.v.r:::r:::r:,:.:s::::..:,..::?x0-:..:.:.,::•,.v::�;a}xo;x:o:.:}.-:}.:::;:c�vri+isv"{fcr!u......:...........:.¢::::r.r.n...r......::Fr..:9+:..a.¢.......F.r... ."}. .4'.°;5:.�..?>S;?�•c�i:::.:....:. <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene benzene Xylenes Qiesel <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015 <br /> Analyst: J.Dinsay J.Dinsay J.Dinsay J.Dinsay J.Dinsay <br /> Reporting Units: mg/kg mg/kg mg/kg mg/kg mg/kg <br /> Date Analyzed: Oct 7, 1992 Oct 7. 1992 Oct 7, 1992 Oct 7, 1992 Oct 7, 1992 <br /> OC Sample#: 210-9765 210-9765 210-9765 210-9765 210-9765 <br /> Sample Conc: N.D. N.D. N.D. N.D. N.D. <br /> a <br /> Spike Conc. <br /> Added: 0.20 0.20 0.20 0.60 15 <br /> Conc. Matrix <br /> Spike: 0.20- 0.20 0.19 0.56 16 <br /> Matrix Spike <br /> % Recovery: 100 100 95 93 106 <br /> Conc. Matrix <br /> Spike Dup.: 0.20 0.20 0.19 0.56 14 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 100 100 95 93 88 <br /> Relative <br /> %Difference: 0.0 0.0 0.0 0.0 13 <br /> SEQUOIA ANALYTICAL %Recovery: Conc,of M.S.-Conc.of Sample x 100 <br /> Spike Conc.Added <br /> Relative%Difference: Conc.of M.S.-Conc.of M.S.D. x 100 <br /> ri L 9 (Cone.of M.S. + Cone.of M.S.D.) 2 <br /> roject Manager 2109762.WAT <10> <br />