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o 1MGlLAMIteS�S s LARORATCRES, INC. <br /> t S rGLIN'Ata.Cwttu [NOR. <br /> 4100 PIERCE RD.. BAKERSFIELD,CALIFORNIA 9330a PHONE 3x7.4911 <br /> grx/Mi GASOLINE <br /> Quality Control Data <br /> Water Work Spilvi ID: 9419-2 <br /> 1710 Main St Analysis Date: 29-Nov-89 <br /> Facalcn, CA 95320 Sample Matrix: Soil <br /> Attention: Units: ug/g <br /> Qtaality Control <br /> for Gab Nos: 9302-1 <br /> One saWle in bnsnty is selected as a representative mtrix which is <br /> spiked. The percentage recovery (% Rae) if the spike is a relative <br /> measuxe of the accuracy of the analysis. The c omparism of the: spike, <br /> with a duplicate spike is a measure of tka relative procision of the <br /> analysis. <br /> Cone. Ccnc. Dxp <br /> in Spike Added to Spike Spike Spike <br /> Constituent Sample Spike % Rec X Rec RPD <br /> Benzene 0.00 5.02 106.72 104.12 2.47 <br /> Toluene 0.00 5.16 102.79 100.26 2.47 <br /> .. Ethyl Benzene 0.00 5.01 109.97 104.20 2.62 <br /> p-Xylene 0.00 5.06 105.04 102.54 2.41 <br /> 1�Yylarl8 0.00 5.01 109.47 106.70 2.56 <br /> o-XYlene 0.00 5.00 108.97 109.45 2.34 <br /> TPH Gays 0.00 301.06 85.27 87.04 2.05 <br /> QC Cmmmts: <br /> r.. <br /> Spikai Smaple Cm=tration - S&wle Concentration <br /> x FOnrery X 100 <br /> (C wmtration of Spike) <br /> MM (Relative Port Differerm) _ <br /> Spiked Sample Cone. - Spiked Duplicate Sample Coen. <br /> ---------------------- X 100 <br /> _. (Average' Conc. of Spm) �____. <br />