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- <br /> F <br /> "E1.4 ,o4ALYT1CAL <br /> 580 Chesapeake Drive • Redwood City,CA 94063 RCEiVED MAY 31 g <br /> (4S5)364-9600 FAX(4155)364.9233 <br /> r <br /> .oxo,-.,�, <br /> r N " <br /> aterwork Client ID.-R erasExxon,388 <br /> 1710 Main Street ` <br /> Ag <br /> Escalon,CA 95320 <br /> Altention: Bill Channail QC Sample Group: lo4298S,298x3-91 Reported:May 1, 1991 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE t,l-Didtloro- Trichioro- Chloro- <br /> ethane ethroe benzene <br /> Method: EPA 9010 EPA 8010 EPA 8410 <br /> Analyst: J.vinar J.Vilar ,i vinat <br /> Reporting Units: mg/kg mg/kg mg/kg <br /> Date Analyzed: Apr 24. 1991 Apr 24, 1991 Apr 24, 1991 <br /> OC Sample : Mcuix Martix Matrix <br /> Sample Conc.: N.D. N.D. N.D. <br /> Spike Cone. <br /> t' Added: 50 S0 50 <br /> } Cone.Matrix <br /> j Spike: 48 44 48 <br /> Matrix Spike <br /> %Recovery: 96 88 96 <br /> Conc,Matrix <br /> Spike Dup.: 50 45 49 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 104 90 98 <br /> w Relative <br /> %Difference: 4.1 2.2 2.1 <br /> SEQUOIA ANALYTICAL x Recovery Cone,of M.&..Conc of Sample x 100 <br /> �za�b&e�h <br /> Spike Conc.Added <br /> lative%Werence: Conc.o!M.S.-Conc.or M.S.D. x 100 <br /> E W.>�1acs '`z �s� <br /> (Conc.of M.S. +Conc.of M.S.D.)12 <br /> Fr <br /> oject Mareger 10429e8.WAr <1r, <br /> - rs <br />