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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)986 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> n..` .-r r r.,.�a�.. v.. l ry e 4�^a',{ :vNh yF ,,,. r ,.!ry A ea:x ,..,,.v., .:.'h" n •- � cm rou <br /> Blaine Tech Services,Inc' Client Project IDv n 9-82647970827-T1-to v av <br /> ` �Chevron <br /> ,1680 Rogers Ave Matrix Liquid } <br /> "San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9708E76-01, 02, 03 Reported Sep 9, 1997. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dichloroethene Trichloroethene Benzene Toluene Chloro- <br /> benzene <br /> OC Batch#. MS0902978260H6A MS0902978260H6A MS0902978260H6A MS09029782601-16A MS09029782601-16A <br /> Analy Method EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 <br /> Analyst L Zhu L.Zhu L Zhu L.Zhu L Zhu <br /> MS/MSD# 9708F00-02 9708F00-02 9708F00-02 9708F00-02 9708FOO-02 <br /> Sample Cone 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.# He He He He He <br /> Cone Spiked 50Ng/L 50ug/L 50yg/L 50u9/L 50pg/L <br /> Result 43 45 50 48 47 <br /> MS % Recovery 86 90 100 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# VDB0903S V080903S VDBO903S VDBO903S VDBO903S <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.# He He H6 H6 He <br /> Cone Spiked 50 pg/L 50 ug/L 50 ug/L 50 ug/L 50 ug/L <br /> LCS Result 44 44 48 47 46 <br /> LCS % Recov: 88 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 /> I A ALYTICAL 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 r *'MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference <br /> P ct Manager 9708E76 BLA <6> <br />