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ENVIRONhENTAL <br /> "'EC LVED <br /> NOV 13 1992 <br /> ANALYTICAL CHEMISTS WMl ALHVIbto <br /> November 9, 1992 QA/QC ID# 921029 8020-301A <br /> Custom RV RE: Organic Analysis <br /> 4807 South Airport Way <br /> Stockton CA 95206 Extracted: October 29, 1992 <br /> Analyzed : October 29, 1992 <br /> FGL Environmental Quality Assurance Report <br /> EPA METHOD 8020 <br /> CONC. ACCURACY PRECISION <br /> SPIKED % RECOVERED % DIFFERENCE <br /> CONSTITUENT mg/kg MS MSD AR RPD MAV <br /> Chlorobenzene 5.0 90 97 55-135 7.0 20.0 <br /> Ethyl Benzene 5.0 94 101 32-160 7.0 20.0 <br /> 1,3-Dichlorobenzene 5.0 97 104 50-141 8.0 20.0 <br /> 1,4-Dichlorobenzene 5.0 115 124 42-143 7.0 20.0 <br /> MS = Matrix Spike MSD = Matrix Spike Duplicate Matrix = Laboratory Blank Yater <br /> AR = Acceptable Range RPD = Relative Percent Difference MAV = Maximum Acceptable Value <br /> FGGL ENVIRONMENTAL <br /> L� <br /> T mas Bart en, M.S. <br /> l� lity Assurance Offi r <br /> Corporate offices& y.Laborator Office&Laboratory Field Office <br /> �— 2500 Stagecoach Road V;sn;a- California <br /> P.O.Be.272/653 Corporation Sleet 209 734 9473 <br /> Santa Paula.CA 93061-0272 Stockton.CA 2 018 ( l <br /> TEL (805)659-0910 TEL(209;94�Ot6i Mobile (209)739-6273 <br />