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680 Chesapeake Dnvc Redwood City CA 94063 (415) 364 9600 FAX (415) 364 923 <br /> Sequoia 3 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> 1Il0 Analytical 819 Striker Avenue Suitc 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 woo <br /> Smith Environmental Cklent Project ID 20920, 94-273-94-10 <br /> 441 N Whisman, Bldg 23 Matrix Liquid <br /> Mountain View, CA 94043 <br /> Attention Rich Garlow Work Order# 9609978-03, 05 Reported Oct 1, 1996 <br /> .r r ,.,,r . ry : ..,.,.. � r ` r•,r c s. � . .. M w n v <br /> ' QUALITY CONTROL DATA REPORT <br /> ' Analyte 1,1-Dichloroethene Tnchioroethene Benzene Toluene Chloro- <br /> benzene <br /> QC Batch# MS092396824oF2A MS0923968240F2A MS09239%240F2A MS092396B240F2A MS0923968240F2A <br /> Analy Method EPA 8240 EPA 8240 EPA 8240 EPA 8240 EPA 8240 <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#: 9SWC2101 9609C2101 9609C2101 960902101 960902101 <br /> Sample Cone.: N D N D N D N D N D <br /> Prepared Date 9/23/96 9/23/96 9/23/96 9/23/96 9/23/96 <br /> Analyzed Date 9/23/96 9/23/96 9/23/96 9/23/96 9/23/96 <br /> Instrument I D # MS-172 MS-F2 MS-F2 MS-F2 MS-F2 <br /> Cone Spiked 50ug/L 50 jig/L 50ug/L 50pg/L 50pg/L <br /> Result 46 51 54 56 53 <br /> MS % Recovery 92 102 108 112 106 <br /> ' Dup Result* 45 50 53 55 52 <br /> MSD %Recov.: 90 100 106 110 104 <br /> RPD 22 20 19 18 19 <br /> ' RPD Limit 0-25 0-25 0-25 h. Dry25 v 0-25 <br /> ' LCS# VEM2796 VB092796 VB092796 VB092796 VB092796 <br /> Prepared Date 9/27/96 9/27/96 9/27/96 9/27/96 9/27/96 <br /> Analyzed Date 9/27/96 9/27/96 9/27/96 9/27/96 9/27/96 <br /> Instrument I D #. F2 F2 F2 F2 F2 <br /> Cone Spiked 50Y9/L 50ug/L 50Ng/L Wug/L 50pg/L <br /> ' LCS Result 55 54 60 60 58 <br /> LCS % Recov 110 108 120 120 116 <br /> MS/MSD 60-140 60-140 60140 60-140 60-140 <br /> LCS 65-135 70-130 70-130 70-130 70-130 <br /> Control Limits <br /> 1 <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that 1s analyzed using the same reagents, <br /> SY�nka <br /> LYTI preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> forthed with known quantities of specific compounds and subjected to the entire analytical procedure Hthe 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 /> V "*MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Project Manager 9609978 SSS <2> <br /> r, <br />