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SEQUOIA ANALYU AL <br /> 680 Chesapeake Drive • Redwood City,CA 94063 <br /> (415)364-9600 • FAX(415)364-9233 <br /> Waeerwork <br /> Client Pra]ect!D.367,k6 lsiand Resort <br /> 1710 Main Street <br /> `Escalon.CA 95320 Ey <br /> Attention Tina LePage QC Sample Group 105.3316 Reported.Jun S 1991 a <br /> ........::.:.X.:,iii°fc .M=.,w.,'.-.ia°<'�'c.s..,, :::os:,M..�,a..,;.ti..:',<:t�'w',�.aF <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE _ <br /> Diesel <br /> Method: EPAW15 <br /> Analyst: I Malerstein <br /> Reporting Units: Pg/L <br /> Date Analyzed: Jun 3, 1991 <br /> CC Sample#: BLK053091 <br /> Sample Cone.: N.D. <br /> Spike Cone. <br /> Added: 300 <br /> t Cone.Matrix <br /> Spike: 260 <br /> Matrix Spike <br /> %Recovery: 86 <br /> Conc.Matrix € <br /> Spike yup.: 260 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 92 <br /> Relative <br /> %Difference: 7.4 <br /> 0.. <br /> 5E 0)A ANALYTICAL %Recovery: Cann,of M.S.•Conc.of Sampfe <br /> x100, <br /> Spike-5n <br /> c.Addetl <br /> Relative%D+Herence: Conc.of M.S.-Conc.of M.S.D. x 100 <br /> za eth W. ac I . <br /> F o;ect Manager (Conc,of M.S.Y Conc.of M.S.D.)/2 <br /> IM316.wAT <4> <br />