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j SEQUOIA ANALYTICAL
<br /> 680 Chesapeake Drive • Redwood City,CA 94063
<br /> " (415) 364-9600 FAX(415) 364-9233
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<br /> ��I?INaterWOrl( IeM Project ID: 519,aS2;?tocwk:3toGn�Se-?SrCcviw c?se..:w/:W;.^.•:-er`Kvctier
<br /> Trucking
<br /> <>1710 Main Street
<br /> 'Escalon, CA 9.5320
<br /> ;Attention: John lane Q.C. Sample Group: 106-271
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<br /> Reported: Jul 1
<br /> po 1991
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<br /> QUALITY CONTROL DATA REPORT
<br /> ANALYTE Chloro. !
<br /> 1,1 Dichloroethene Trichloroethene benzene Heptachlor Dieldrin Endrin
<br /> Method: EPA 8010 :',EPA 8010 EPA 8010 EPA 8i)80 EPA 8080 EPA 8080
<br /> Analyst: A-Fulcher A.Fulcher A.Fulcher D.Tran D.Tran D.Tran
<br /> Reporting Units: ug/L ug/L u9/L ug/kg ug/kg ug/kg
<br /> Date Analyzed: Jun 28, 1991 Jun 28, 1991 Jun 28, 1991 Jun 19, 1991 Jun 19, 1991 Jun 19, 9991
<br /> CC Sample#: BLX062891 BLK062891 SLK062891 BLKOM1891 BLKWI891 BLK061891
<br /> Sample Conc.: N.D. N.D. N.D. N.D. N.D. N.D.
<br /> Spike Conc.
<br /> Added: 5.0 5.0 5.0 25 50 50
<br /> Conc. Matrix
<br /> Spike: 6.5 . .4.8 5.1 24 44 50
<br /> Matrix Spike
<br /> %Recovery: 130 96 100 96 88 100
<br /> Conc. Matrix
<br /> Spike Dup.: 5.8 `4.3 4.9 27 50 57
<br /> Matrix Spike
<br /> Duplicate
<br /> %Recovery: 120 98 110 100 110
<br /> Relative
<br /> % Difference: 11 11 4.0 12 13 13
<br /> S 000IA ANALYTICAL %Recovery: Conc.of M.S..Conc.of Sample x 100
<br /> Spike Conc.Added
<br /> Relative%Difference: Conc,of M.S.-Conc.of M.S.D. x 100
<br /> eth . Hack
<br /> - (Conc.of M.S. + Conc.of M.S.D.)/2
<br /> roject Manager 1062710.wAT <9>
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