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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Wiget Lane Walnut Creek CA 9 (510)988-9600 FAX(5 10)488-9673 <br /> lker Avenue Suite 8 Sacramento CA 95 (916)921-9600 FAX(41t5j$21-01)0,0 <br /> Analytical i McDowell Blvd North Ste D Petaluma CA 9495 (707)792-1865 FAx(707)742-0342 <br /> Blaine Tech Services, Inc Client Project ID Shell 7910 Lower Sacramento <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9805F05 -01-05 Reported Jun 12, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Gasoline <br /> QC Batch#. 34135 <br /> Analy Method EPA 815A <br /> Prep Method. NA <br /> Analyst S Farkis <br /> MS/MSD # 701372633 <br /> Prepared Date 6/2/98 <br /> Analyzed Date 6/2/98 <br /> Instrument I D # <br /> MS % Recovery 101 <br /> MSD % Recov 103 . <br /> RPD 20 <br /> RPD Limit. 0-50 <br /> LCS # LCS060298 <br /> Prepared Date 6/2/98 <br /> Analyzed Date 6/2/98 <br /> Instrument I D # - <br /> LCS % Recov 102 <br /> 60-140 <br /> LCS 70-130 <br /> Control Limits <br /> Please Note <br /> SEQUOIA ANALYTICAL The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> Elap 245 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 ' <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> e gy Penner interference,the LCS recovery is to be used to validate the batch <br /> Project Manage **MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative% Difference 9805FO5 BLA <1> <br />