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' Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N Wtget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-6264 /961105-C1 <br /> Y985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9611258-01 Reported Nov 23, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: 1,1-Dichloro- Tnchloro- Chloro- <br /> ethene ethene Benzene <br /> QC Batch#: GC1112968010008A GC11129CM10008A GC1112968010008A <br /> Analy Method: EPA 8010 EPA 8010 EPA 8010 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 <br /> Analyst R Bou-Salman R Bou Salman R Bou-Salman <br /> MS/MSD # 961124902 961124902 961124902 <br /> Sample Conc N D N D N D <br /> Prepared Date 11/12/96 11/12/96 11/12/96 <br /> Analyzed Date 11/12/96 11/12/96 11/12/96 <br /> Instrument I D # GCHP8 GCHP8 GCHP8 <br /> Conc Spiked- 25pg/L 25Pg/L 25 u9/L <br /> Result' 22 22 22 <br /> MS %Recovery- 88 88 88 <br /> Dup. Result: 23 24 22 <br /> MSD % Recov : 92 96 88 <br /> RPD- 44 87 00 <br /> RPD Limit 0-25 0.25 0-25 <br /> LCS # BLK111296 BLK111296 BLK111296 <br /> Prepared Date 11/12/96 11/12/96 11/12/96 <br /> Analyzed Date. 11/12/96 11/12/96 11/12/96 <br /> Instrument I D # GCHP8 GCHP8 GCHP8 <br /> Conc Spiked. 25pg/L 25yg/L 25pg/L <br /> LCS Result: 25 25 24 <br /> LCS%Recov : 100 100 96 <br /> 60-140 60.140 60-140 <br /> LCS 65-135 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 /> MSEIGUOIAANA;1CAL 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 riot fall 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 <br /> 9611258 BLA <8> <br />