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a- ) Sequoia +� Redwood Gcy,CA 94063 364-96,00 FAX(415)364-9233 <br /> ClBat,=�t,L Con==CA 94528 t"0) 68&9600 FAX(510)ba6.9689 <br /> molal Cal $19 Striker A,,.,,SW,a Sats-mento,CA 95934' (916) 911-9600 FAX(916)921-0100 <br /> .<:fi::r:-. :..::::... �x-�r a-'K+s:?1s...,�P.�'�7.. s"e ,�yS. � :u�� .. :ea."y�r.. r�a�ea•�,snC.. <br /> Nov 2, 1994 <br /> -�}sire:•iinvPi.4.L:h±:•:::'!:-:ti}r fr}Y� e4J{r.��}:}isi::>e::�4:ii4::!JhnL'�`}�Ys4t.''W"Y�:ry)M$`vFi.�fr�t'�"ei'rhivti:i':+`:�=:ii:v:J•:iC:ti•k'iC�'.i4irr]Wi.�:v:4,:�c-s:e- aea <br /> :Geraghty S Myler C1'ient Project tD: RCA291.QOt,514 Kettlerrlan Ln. { <br /> :x.1050 Marina way, South Matrix: liquid <br /> Aichmorld, CA 94804 <br /> Attention: C. Sean Birch Work O 33 -02 <br /> -" rder#• _ <br /> r. <br /> ":.,,.:-..:.::.,,,�.•,• ---':;-r..xu•:xmwx.,.��-,.un,:.:..,:..-:.:",...�>rr.r.-E;r.:n»::, .w.:.:n>;w..�r:^ -- Gc`�:��S::cn_.x !}-w^;cr;�±r,•vii>:-:,r!+xrfi°i..�":n" <br /> 941 <br /> .�...x.>.- ... .-..-:.-:... fu-•c r -ar .. -...tk-..ia...,:..-,c..:wx::;..-,Y_.:- ... :-.:,i..._ ... .,,.a 3.-•.:..::;:.r.:r.'.:eti=.k;3:...r....:.-...:rhtjo-xtch <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GC102494w Ex17A GC102mmeTEmA GC10249413TEX17A GC1024N TEX17A <br /> Analy.Method: EPAa= EPA 8020 EPAt'1020 EPASM <br /> Prep. Method: N/A N/A N/A N/A <br /> Analyst: R Vincent R Vwmnt R.Vincent R Vincent <br /> MS/MSD#: 9410A3606 9410A3606 9410A3606 9410A3606 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: N/A N/A N/A N/A <br /> Analyzed Date: 10/24/94 10/24/94 10/24/94 10/24/94 <br /> Instrument I.D.#: GCHP17 GCHP17 GCHP17 GCHP17 <br /> Conc. Spiked: 10ug/L 10ug/L 10gg/L 30pg/L <br /> Result: 9.7 9.6 9.7 29 <br /> MS%Recovery: 97 96 97 10 <br /> Dup. Result: 10 9.8 9.4 29 <br /> MSD % Recov.: 100 98 94 97 <br /> RPD: 3.0 2.1 3.1 0A <br /> RPD Limit: 0-50 0-50 0.50 0-50 <br /> { <br /> - } `v��' b'µ'tM'Y.•:.� �°-ice.. <br /> LCS #. <br /> Prepared Date: <br /> Analyzed Date: <br /> Instrument E.D.#: <br /> Conc.Spiked: <br /> LCS Result: <br /> LCS %Recov.: <br /> LCS 71-133 72-128 72-130 71.120 <br /> Control Limits <br /> ?lease Note: <br /> The LCS is a control sample of known.interferent-free matrix that is analyzed u by the same reagents, . <br /> SEQUOIA ANALYTICAL Preparation.and analytical metrtods employed for the samples. The n a nx spam is an aliquot of samph <br /> tortified with known quantities of specific compounds and subjected to the entire wlytieal procedure. 9 <br /> a recovery of analytes from the matrix spike does not tall within specified cor mot limits due to matrix <br /> berterence.the LCS recovery is to nye used to validate the batch. <br /> Todd Olive <br /> Pro ct Manager MS=Matrix Spike.MSO=MS <br /> Duplicate.RPD=Relative%Difference 9410E33.GER <1a <br />