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r Sequoia 680 Chesapeake Dave Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 15) 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 967 404 N iget Fane Walnut Creek CA 94598 (510) 988 9600 FAX(5i0)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-8264 /961105-Cl <br /> 985 Timothy Drive Matrix Liquid <br /> Sari Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9611258-02 Reported Nov 23, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Diesel <br /> QC Batch#: GC 11 12960H BPEXA <br /> Analy Method EPA S015M <br /> Prep Method EPA 3510 <br /> Analyst: B Sullivan <br /> M S/MSD#: 961125802 <br /> Sample Conc.- ND <br /> Prepared Date 11/12/96 <br /> Analyzed Date 11/16/96 <br /> Instrument I D # GCHP5 <br /> Conc Spiked: 1000{ig/L <br /> Result 1200 <br /> MS % Recovery: 120 <br /> Dup Result* 1100 <br /> MSD% Recov : 110 <br /> RPD: 87 <br /> RPD Limit 0-50 <br /> LCS #: 131-1<11 11296 <br /> Prepared Date: 11/12/96 <br /> Analyzed Date 11/16/96 <br /> Instrument I D #. GCHP5 <br /> Conc. Spiked. 1000 ug/L <br /> LCS Result: 1600 <br /> LCS% Recov.: 160 <br /> MS/MSD 50-150 <br /> LCS 60.140 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-tree matrix that is analyzed using the same reagents, <br />%Project <br /> EF; <br /> AL 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 M <br /> the recovery of analytes from the matrix spike does not fail within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9611258 BLA <9> <br />