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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(SIO)988 9673 <br /> 6) 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 948632/960207-Z4 h <br /> X985 Timothy Drive Matrix Liquid <br /> ,Sari Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9602583-01 Reported Feb 27, 1996;' <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dichioro- Tnchloro- Chloro- <br /> ethene ethene benzene <br /> QC Batch# GCO21296801008A GCO2129WO1008A GCO21296801008A <br /> Analy Method EPA 8010 EPA 8010 EPA 8010 <br /> Prep. Method EPA 5030 EPA 5030 EPA 5030 <br /> Analyst A Li A Li A Li <br /> MS/MSD #. 960256903 9602566903 960256903 <br /> Sample Conc : N D N D N D <br /> Prepared Date. 2/12/96 2/12/96 2/12/96 <br /> Analyzed Date 2/12/96 2/12/96 2/12/96 <br /> Instrument I D # GCHP8 GCHP8 GCHP8 <br /> Conc Spiked 25ug/L 25Ng/L 25ug/L <br /> Result 22 22 22 <br /> • MS % Recovery 88 68 88 <br /> Dup Result 22 22 22 <br /> MSD % Recov 88 88 88 <br /> RPD: 00 00 00 <br /> RPD Limit 0-50 0-50 0-50 <br /> LCS # BLK021296 BLK021296 BLK021296 <br /> Prepared Date 2/12/96 2/12/96 2/12/96 <br /> Analyzed Date 2/12/96 2/12/96 2/12/96 <br /> Instrument I D #. GCHP8 GCHP8 GCHP8 <br /> Conc. Spiked: 25ug/L 25Pg/L 25ug/L <br /> LCS Result. 24 23 24 <br /> LCS%Recov • 96 92 96 <br /> MS/MSD <br /> LCS 30-140 40-130 40-130 <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 /> :ey <br /> Ol AL ICAL 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 /> interference,the LCS recovery is to be used to validate the batch <br /> enner MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> t Manager 9602583 BLA <7> <br />