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• *, Sequoia 680 Chesapeake Dave Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creels CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 4T,*.w xvY Cvx�q • ^ � x4 -; NJ1: l.v <br /> ,,Blaine Tech SeSfi1eEl,Stockton/ <br /> Services,Inc JA Client Project lD {960516-T2 <br /> ,985 Timothy Drive Matrix Liquid <br /> `,,Attention Jim Keller Waris Order# 9605C68 -01-06r ?: A Deported; May,29, 1996 } <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#' GC052296BTEX20A GC0522%BTEX20A GC052296BTB=A G1005229613TEX20A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: J Woo J Woo J Woo J Woo <br /> MS/MSD#: 9605A6004 9605A60a4 9605A6004 9605A6004 <br /> Sample Conc.: N D N D N D N D <br /> Prepared Date. 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I.D.#. GCHP20 GCHP20 GCHP20 GCHP20 <br /> Cons. Spiked: 10Ng/L 10N9/ <br /> L 10{tg/L 30Ng/L <br /> Result: 84 85 so 23 <br /> MS %Recovery: 84 85 80 77 <br /> Dup. Result: 92 94 88 26 <br /> MSD%Recov.• 92 94 88 87 <br /> RPD 91 10 95 12 <br /> RPD Limit 0-25 0-25 0-25 0-25 <br /> LCS#: BLK052296 BLK052296 BLK052296 BLK052296 <br /> Prepared Date. 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I.D.#. GCHP20 GCHP20 GCHP20 GCHP20 <br /> Conc. Spiked: 10 ug/L 10lig/L 10 ug/L 30Ng/L <br /> LCS Resutt: 94 99 94 28 <br /> LCS%Recov.- 94 99 94 93 <br /> 60.140 60-140 60-140 60-140 <br /> LCS 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 the same reagents, <br /> U ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery Is to be used to validate the batch <br /> Pe gy Penner <br /> r dlect Manager **MS Matrix Spike,MSD MS Duplicate,RPD Relative 96 Difference 9605C68 BLA <1> <br />