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_ . <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 [J Wlget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)98$ 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> n <br /> Blaine Tech Services, Inc Client Project ID Shell, Stockton / 960820-K1 <br /> 985 Timothy Drive Matrix Liquid Jan 0, 1900 <br /> San Jose, CA 95133 <br /> Attention Fran Thie Work Order # 9608E66-04 Reported Sep 10, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dlchloroethene Trichloroethene Benzene Toluene Chloro- <br /> benzene <br /> OC Batch# MS0903968260F3A MS0903968260F3A MS0903968260F3A MS0903968260F3A MS0903968260F3A <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 Duong L Duong L Duong L Duong L Duong <br /> MS/MSD # 9608B7304 9608B7304 9608137304 960887304 960867304 <br /> Sample Conc.. N D N D N D N D N D <br /> Prepared Date - - - - - <br /> Analyzed Date 9/3/96 9/3/96 9/3/96 9/3/96 9/3/96 <br /> Instrument I D # F3 F3 F3 F3 F3 <br /> Conc Spiked 50ug/L 50 fig/L 50Yg/L 50 fug/L 50 fug/L <br /> Result 51 47 49 49 49 <br /> MS % Recovery 102 94 98 98 98 <br /> Dup Result 48 48 49 50 50 <br /> MSD %Recov 96 96 98 100 100 <br /> RPD 61 21 00 20 20 <br /> RPD Limit 0-25 0-25 0-25 0-25 0-25 <br /> LCS #- VD090496 V0090496 VD090496 V0090496 V0090496 <br /> Analyst' M Williams M Williams M Williams M Williams M Williams <br /> Prepared Date - - - - <br /> Analyzed Date 9/4/96 9/4/96 9/4/96 9/4/96 9/4/96 <br /> Instrument I D.# F3 F3 F3 F3 F3 <br /> Conc Spiked 50pg/L 50ug/L 50ug/L 50ug/L 50ug/L <br /> LCS Result 51 48 51 50 5o <br /> LCS % Recov 102 96 102 100 100 <br /> MS/MSD 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,tnterferent-free matrix that 1s analyzed using the same reagents, <br /> E OI ANALYTICAL 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 /> e Penner **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative% Difference <br /> roject Manager 9608E66 BLA <4> <br /> g�' <br />