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q/ \ 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 (510) 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 Shell, Stockton /960820-K2 <br /> 988 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 960BE67-04 Reported Sep 11, 199fi <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dlchloroethene Trichloroethene Benzene Toluene Chloro- <br /> benzene <br /> OC Batch# MS090696826OF2A M50906968260F2A MS090696826OF2A MS090696826OF2A MS090696826OF2A <br /> Analy Method EPA 8260 EPA 8260 EPA 8260 EPA 8250 EPA 8250 <br /> Prep Method N/A N/A N/A N/A N/A <br /> Analyst L.Duong L Duong L.Duong L Duong L Duong <br /> MS/MSD # 96095901 96095901 96095901 96095901 96095901 <br /> Sample Conc N D N D N D N D N D <br /> Prepared Date 9/6/96 9/6/96 9/6/96 9/6/96 9/6/96 <br /> Analyzed Date 9/6/96 9/6/96 9/6/96 9/6/96 9/6/96 <br /> Instrument I D # F2 F2 F2 F2 F2 <br /> Conc Spiked 10 ug/L 10 pg/L 10 pg/L 1011g/L 10 pg/L <br /> Result 9 3 88 10 9 2 94 <br /> MS % Recovery 93 88 100 92 94 <br /> Dup Result 94 91 10 9 9 97 <br /> MSD % Recov 94 91 100 99 97 <br /> RPD 11 34 00 73 31 <br /> RPD Limit 0-25 0-25 0-25 0-25 0 25 <br /> LCS# VRB090696 VRB090696 VRB090696 VR3090696 VRB000696 <br /> Prepared Date - <br /> Analyzed Date 9/6/96 9/6/96 9/6/96 9/6/96 6/6/66 <br /> Instrument I D # F2 F2 F2 F2 F2 <br /> Conc Spiked 10Ng/L 1opg/L 10pg/L 10pg/L 10Ng/L <br /> LCS Result 9 7 92 11 9 8 97 <br /> LCS % Recov 97 92 110 98 97 <br /> MS/MSD 60-140 60-140 60-140 60-140 60-140 <br /> LCS 65-135 70-130 70-130 70-130 70130 <br /> Control Limits <br /> i <br /> Please Note <br /> �� The LCS 1s a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> W///Q IOIA NALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> I 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 /> Pe gy Panner **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Project Manager 9608E67 BLA <2> <br /> n <br />