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Sequoia680 Chesapeake Drive Redwood City, CA 94063 (650) 364 9600 FAX(650)364 97,98 „ <br /> 404 N W�get Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 Afj f """ <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 Shell Stockton /970829-S1 <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thle Work Order# 9708FOO-01-02 Reported Sep 3, 1997 <br /> . v Y v n ,v <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dichloroethene Trichloroethene Benzene Toluene Chloro- <br /> benzene <br /> QC Batch#: MS09029782601-16A MS0902978260H6A MS0902978260H5A MS0902978260H6A MS09029782601-16A <br /> Analy. Method: EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 <br /> Prep. Method N A N A. N A. N A. N A. <br /> Analyst L Zhu L.Zhu L Zhu L Zhu L Zhu <br /> MS/MSD # 9708F0002 9708F0002 9708F0002 9708F0002 9708F0002 <br /> Sample Conc N D N D N D N D N D <br /> Prepared Date 9/2/97 9/2/97 9/2/97 9/2/97 9/2/97 <br /> Analyzed Date 9/2/97 9/2/97 9/2/97 9/2/97 9/2/97 <br /> Instrument I D.# H6 H6 H6 H6 H6 <br /> Conc. Spiked 50pg/L 50pg/L 50pg/L 50pg/L 50pg/L <br /> Result 43 45 50 48 47 <br /> MS % Recovery 86 go 100 96 94 <br /> Dup. Result 45 46 51 49 48 <br /> MSD % Recov 90 92 102 98 96 <br /> RPD. 45 22 20 21 21 <br /> RPD Limit 0-25 0-25 0-25 0-25 0-25 <br /> LCS #. VDB090297 VDBO90297 VDBO90297 VDBO90297 VDBO90297 <br /> Prepared Date: 9/2/97 9/2/97 9/2/97 9/2/97 9/2/97 <br /> Analyzed Date. 9/2/97 9/2/97 9/2/97 9/2/97 9/2/97 <br /> Instrument 1.13 # H6 H6 H6 H6 H6 <br /> Conc Spiked- 50Ng/L 50pg/L 50pg/L 50pg/L 50pg/L <br /> LCS Result. 43 44 48 47 46 <br /> LCS % Recov: 86 88 96 94 92 <br /> 60-140 60-140 60-140 60-140 60-140 <br /> LCS 65-135 70-130 70-130 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 /> SE N LYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sampl <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 /> interference,the LCS recovery is to be used to validate the batch <br /> Peg P n er **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Projec nager 9708F00 BLA <3> <br />