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"� E' • Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404N Wiget Lane Walnut Creek CA 94598 (510) 988-9600 FAX(Slo) 988%73 <br /> X111 Analytical 819 Sinker Avenue,Suite 8 Sacramento CA 95834 (916) 921-9600 FAX(916) 921 0100 <br /> Canonle Environmental xN ' Client Project IDA 94-367, Stockton Fire #2 r' w <br /> 7901 Stoneridge Drive, Suite 100 Matnx Liquid <br /> Pleasanton, CA 94588 <br /> Attention John Lane Work Order# 9503J54 -01-2, 4-5 Reported Apr 19, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte' Diesel <br /> QC Batch#. GCQ403950HBPE>Z <br /> Analy Method: EPA 8015M <br /> Prep Method: EPA 3520 <br /> Analyst: T Olive <br /> MS/MSD#• 95wrr of <br /> Sample Conc . 210 <br /> Prepared Date 4/3/95 <br /> Analyzed Date. 4/4/95 <br /> Instrument I D.#: GCHP4 <br /> Conc. Spiked: 600ug/L <br /> Result: 670 <br /> MS % Recovery; n <br /> Dup. Result: 640 <br /> MSD % Recov.: 72 <br /> RPD: 46 <br /> RPD Limit- 0-50 <br /> f f}• v ..vx r kf{ +f .}{ 1: ra.v! J n x }xl Ar v .off ,n... w <br /> r` �C+}Var4 ♦ .r^. {ter rr a vv.!r v{Y r 7 w M1..ri tf ni n f nv y <br /> mvr rvr <br /> LCS#: BLKD40395 <br /> Prepared Date: 4/3/95 <br /> Analyzed Date: 4/5/95 <br /> Instrument I.D.#: GCHP4 <br /> Conc. Spiked: 6Wyg/L <br /> LCS Result: 480 <br /> LCS % Recov.: 80 <br /> LCS 38-122 <br /> Control Limits <br /> Please Note <br /> The LCS 1s a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> SEQUOIA 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 /> 01 ! the recovery of analytes from the matrix spike sloes not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Vickie Tague Clark <br /> Project Manager *"MS=Matnx Spike,MSD=MS Duplicate,RPR=Relative%Difference 9503J54 CAN .0> <br /> fid' <br />