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{ 1 11J <br /> SEQUOIA ANALYTICAL ; <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> - n:.:;•.q•:.:�::. •' r•r•:::::nv::::nv::xr:�:?i:is-: <br /> .......:......... <br /> �:-:.;::::::.: *:;::ii;i f:o: •'+.r::...__ _ _ ..;:::;.C:::�:u:.;:`.: } -. �-�-x:s::::::..: ::. :._._ ,::....�. ..,..:�::,:.n-:...:.::: ;.•}:•:::rx.-iR:+:t:.:-.::•:,:::r:;.}::n:;::::::�i:o::.ii�.,:�:::is;�x�?>:..r::;.w <br /> f8runsing Associates, Inc. Client Project ID: 260.4 Doane Products <br /> 1735 E. Bayshore, Suite 2A <br /> Redwood City, CA 94063 <br /> Attention: Joel Bruxvoort QC Sample Group: 209 4177 Reported: Oct 5, 1992:;:: <br /> ! .......... .. .............. ... .............. ... ..v.:v.v..:.:.:�.--::nvnv.rv.v.-..:•:nvnvnv.v:.v.::.:-.w..-..'.,:h`:t:i:.::...:: -::' <br /> ............................................::.v;.v-.:nv:;:i.v v:�n;.:.:.ri':;:..,. ....rn•i:::::nv::.......::._......;,•i.:'v-i:�ii':.;...::�i•: <br /> ,_i:............. ....r. .. .... ......::::::...-..........r.........................r...::.'r:.:'r:v}�rF.:�......-...,n, n.r.v.:..-......,.rvmn <br /> :..::..:..::i-:.:,.nrv:W.•.0...-::..v.n,n,nvv:.:+::t�i:v'.i::::n�...n.n+:rx.:..:............n,.n r... ..h. <br /> v:Aiio-vixriiri.:J:`v::ir.ii::::i:•:i:.:i.:ii.:::::.ivr:nv.vnvrv:v...:.:v.v::::.vxnv.•::.u:su:.:.:::.:r: :'.�::�:•... ...v.vn•.• •••....... ••. <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method: EPA 8020 EPA 6020 EPA 8020 EPA 8020 <br /> Analyst: R.Lee R.Lee R.Lee R.Lee <br /> Reporting Units: erg/L pg/L ug/L ug/L i <br /> Date Analyzed: Oct 1, 1992 Oct 1, 1992 Oct 1, 1992 Oct 1, 1992 <br /> QC Sample#: GBLK100192 GBLK100192 GBLK100192 GBLK100192 <br /> Sample Cone.: N.D. N.D. N.D. N.D. <br /> ;pike Cone. <br /> Added: 110 10 10 30 <br /> Cone. Matrix <br /> ` Spike: 10 11 11 31 <br /> Matrix Spike <br /> %Recovery: 100 110 110 103 <br /> Cone. Matrix <br /> Spike Dup.: 11 11 12 34 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 110 110 120 113 1 <br /> Relative <br /> %Difference: 9.5 0.0 8.7 9.2 <br /> i <br /> IEGIUQIA ANALYTICAL %Recovery: Cone.of M.S.-Conc,of Sample x 100 <br /> Spike Canc.Added <br /> 'VA <br /> Relative%Difference: Conc.of M.S.-Conc.of M.S.D. x 100 <br /> Nokowhat D. Herrera Cone.of M.S. + Cone.of M.S.D. /2 <br /> Project Manager 2094166.588 <8> <br /> I <br />