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R Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> * 404 N Wiget Lane Walnut Creek 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 /> Smith Environmental Client Project ID 94-367 10-11/ 14506 <br /> 1260 Graphics Drive - Matrix Liquid <br /> Modesto, CA 95351-1502 <br /> Attention Jeanne Homsey Work Order# 9701 E07-01-05 Reported Feb 5, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Diesel <br /> I <br /> QC Batch# GC0129970HBPEXA <br /> Analy Method EPA 8015M <br /> Prep Method EPA 3510 <br /> Analyst B Sullivan <br /> MS/MSD # 9701EO701 <br /> Sample Cone 1200 <br /> Prepared Date 1/29/97 <br /> Analyzed Date. 1/30/97 <br /> Instrument 1.1) # GCHP4 <br /> Cone. Spiked 1000pg/L <br /> Result 2800 <br /> MS % Recovery 160 <br /> Dup. Result 2800 <br /> MSD % Recov 160 <br /> RPD 00 <br /> RPD Lima 0-50 <br /> LCS # BLK012997 <br /> Prepared Date 1/29/97 <br /> Analyzed Date 1/30/97 <br /> Instrument I D # GCHP4 <br /> Cone. Spiked 1000ug/L <br /> LCS Result 1200 <br /> LCS % Recov 120 <br /> 50-150 <br /> LCS 60-140 <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 />. 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 /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> C _ interference,the LCS recovery is to be used to validate the batch <br /> Sheila lynn <br /> Project Manag **MS=Matrix Spike,MSD=MS Duplicate,RPO=Relative%Difference 9701E07 SSS 43> <br />