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W-50ft <br /> t S 1' AN <br /> lA� <br /> 680 Chesapeake Drive • Redwood City,CA 94063 <br /> n. (415)364-9600 • FAX(415)364-9233 <br /> 'rWaferuork <br /> Client i'rojecf ID: Edchdm <br /> 1710 Main Street <br /> Escalon,CA 95.=20 q ed:AAa 6, 1991 <br /> Attention: BBI Channell QC Sample Group: 104-3733 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> PCB 1250 <br /> Method: EPAWW <br /> Analyst: D.Tran <br /> Reponing Units: pg/kg <br /> Date Analyzed: Apr 23, 1991 <br /> GC Sample#: BLK042m' <br /> Sample Conc.: H.D. <br /> Spike Conc. <br /> Added: 1,000 <br /> Conc.Matrix <br /> Spike: 1,100 <br /> Matrix Spike <br /> %Recovery. 110 <br /> Conc.Matrix <br /> - Spike Dup.: 1,0G0 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 100 <br /> Relative <br /> %Difference: 9.5 <br /> –..._...Conc.at M.3.--Conc.of Sample 1D0 <br /> 5filU.OtA ANAL]YT]C L - p.carent ..._... ---- <br /> - <br /> Added , — -------- <br /> paw"%DWomnce: Conc.of M.S.-Cone.Q#M.S.D. x 100 <br /> b4hH rano.of iA 5.+Conc.of M.S•D. 2 1047731.WAT c 12> <br /> roject Manager <br /> ii <br />