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Will L Weck Laboratories, Inc. <br /> Environmental and Analytical Services-Since 1964 <br /> Client: FGL Environmental QC Report Date: Thursday, September 13, 2001 <br /> Project Name: 134469/3-12612 Project#: <br /> QUALITY CONTROL REPORT <br /> Amt. %RPD <br /> ATr,, % <br /> Sample QC TrueR or for Low High <br /> QC lab# TestGroup Parameter Result Result Units Value RPD MSD Limit Limit <br /> A106241-001MS 218-Ms Chromium,hexavalem(Cr VI) ND 4.84 ug/L 5 96.8 90 110 <br /> A106241-OOIMSD 218_msd Chromium,hexavalent(Cr VI) ND 4.95 ug/L 5 99 2 90 110 <br /> LCS 218_Ics Chromium,hexavalent(Cr VI) 2.47 ug/L 2.5 98.8 90 110 <br /> Method Blank 218_bl Chromium,hexavalent(Cr VI) - NO ug/L 0 0.5 <br /> Worksheet#: lab#: Test Name Analyzed Date <br /> W 527464 A106241-001 Chromium A by Ion Chromatography 9/11/01 <br /> WS27464 A106259-001 Chromium A by Ion Chromatography 9/11/01 <br /> Note: <br /> ND=Not Detected MS=Matrix Spike MSD=Matrix Spike Duplicate SURR=Surrogate <br /> BL=Blank CUP=Duplicate RPD=Relative Percent Deviation LCS=Laboratory Control Standard <br /> Page 1 of 1 <br /> 14859 East Clark Avenue, City of Industry, Califomia 91745-1396 (626)336-2139 FAX(626)336-2634 <br /> www.wecklabs.com <br />