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Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (650) 364 9600 FAX(650)364 92 3 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9 3 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 f FAX(916)921 0100 <br /> 1 i <br /> BlaiileTecti Services, Inc ' client Projec'trlD $hell $tocktonif 970822-J1a '�WyyYM yr~wa y ANA'�'rcNM yf ryY tr <br /> Liquid <br /> 168Q Rogers Ave Matrix LI q _ a> <br /> «San Jose, CA 95112 S" <br /> r�< <br /> Attention Fran Thie Work Order# 9708D32 -01-04, 06 Deported Sep 5, 1997h <br /> h,. r.,.wuw a.r•.. c <br /> ' .. n` t .N ` ryp ry .ail Ory�� ♦4Shvw v{+w` }Hfi v afff{ . 4h vrnwta i`+. vaf• <br /> QUALITY CONTROL DATA REPORT _ <br /> Analyte: Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> QC Batch#: =82797BTEX17A GC082797BTEX17A GCO82797BTEX17A GCO82797BTEX17A GCO82797BTEX17A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: A.Miraftab A.Miraftab A.Miraftab A-Miraftab A.Miraftab <br /> MS/MSD#- 97OBB3606 970883606 9708B3606 970883606 9708B3606 <br /> Sample Conc: N D N D N D N D N D <br /> Prepared Date: 8/27/97 8/27/97 8/27/97 8/27/97 8/27/97 <br /> Analyzed Date: 8/27/97 8/27/97 8/27/97 8/27/97 8/27/97 <br /> Instrument 1.134: GCHP17 GCHP17 GCHP17 GCHP17 GCHP17 <br /> Conc. Spiked: 10pg/L 10pg/L 10pg/L 30ug/L 60pg/L <br /> Result: 84 85 85 25 57 <br /> MS % Recovery: 84 85 85 83 95 . <br /> Dup. Result. 85 86 87 25 57 <br /> MSD %Recov.: 85 86 87 83 95 <br /> RPD: 12 12 23 00 00 <br /> RPD Limit: 0-25 0-25 0-25 0-25 0-25 <br /> wV x r f`rJ.4 .`rr v f f ry w ♦ ry vfffY v v va n r rV f f .. A J'. v ryry y r n r1 r 4 , }ry 4 Y. r r v 1 r a`. r r f v 4 nx f h �}~`{ _ <br /> LCS#: BLK082797 BLKOU797 BLKG82797 BLK082797 BLK082797 <br /> Prepared Date- 8/27/97 8/27/97 8/27/97 8/27/97 8/27/97 <br /> Analyzed Date: 8/27/97 8/27/97 8/27/97 8/27/97 8/27/97 <br /> Instrument I.D.#: GCHP17 GCHP17 GCHP17 GCHP17 GCHP17 <br /> Conc. Spiked: 10ug/L 10 pg/L 10 pg/L 30 pg/L 60 pg/L <br /> LCS Result: 8 5 8 5 8 6 25 57 <br /> LCS %Recov.: 85 85 86 83 95 <br /> 60-140 60-140 60-140 60-140 6D-140 <br /> LCS 70-130 70-130 70-130 70-130 70-130 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,Interferent-free matrix that is analyzed using theErnegents <br /> Iroject <br /> ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an alimpl <br /> fortified with known quantities of specific compounds and subjected to the entire analyticaure <br /> the recovery of analytes from the matrix spike does not fall within specified control limas dtrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> y Penner <br /> Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9708D32 BLA <1 n <br />