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,!T� Sequoia <br /> 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 fJ W'rget 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 /> l' 1aine Tech Services, Inc' ' ClientProject1D Chevron 9-4183/960515-A2 V V <br /> ,:985 Timothy Drive Matrix Liquid }n <br /> *San Jose, CA 95133 a <br /> Attention Jim Keller Work Order# 9605C36-03 <br /> x v A V Y Reported May 29, 199fS tk <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dichloro- Tnchloro- Chloro- <br /> ethene ethane benzene <br /> QC Batch# GCO52296801008A GC05229M1008A GC05229MI008A <br /> Analy. Method: EPA8010 EPAS010 EPA8010 <br /> Prep Method. EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: A.U A.Li A.tj <br /> MS/MSD# 9603571612 9603571612 9603571612 <br /> Sample Cone - 27 29 N D <br /> Prepared Date 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 <br /> Instrument I D # GCHP8 GCHP8 GCHP8 <br /> Cone Spiked 25ug/L 25pg/L 25pg/L <br /> Result 27 50 24 <br /> MS%Recovery. 97 84 96 <br /> Dup. Result- 25 47 22 <br /> MSD % Recov : 89 72 as <br /> RPD 77 62 87 <br /> RPD Limit 0-25 0-25 0-25 <br /> LCS# BLK052296 BLK062296 BLK052296 <br /> Prepared Date- 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 <br /> Instrument I D #: GCHP8 GCHPB GCHP8 <br /> Cone Spiked 25ug/L 25pg/L 25ug/L <br /> LCS Result: 25 24 25 <br /> LCS% Recov.: 100 96 100 <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 /> OS OI NALYTICAL 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 /> P g y nner **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference <br /> Pr Ct Manager 96MC36 BLA `4' <br />