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Quala.ty Control Report - <br /> for <br /> Hydrocarbons (BTEX, TPH-G, TPH-D) <br /> Analyzed By: S . Singh Reviewed By: B. Stafford <br /> QC Sample 1D: NA --S-BTEX Spike Level: BTEX NA <br /> NA -S-TPHG TPHG NA <br /> 061192 -S-TPHD TPHD 5 . Oppm <br /> Sample Matrix: Soil Spiked Sample 1D: Spa-king Spa-kingSoil <br /> Quality Control Report for Exam Number: 692-3121 . 1-5 , 7 <br /> Matrix <br /> Method Matrix Spike <br /> Constituent Blank Spike Dup Spike <br /> (mg/kg) ( % Rec) ( % Rec) Range <br /> Benzene ND NA <br /> NA NA <br /> Toluene ND NA NA NA <br /> Ethylbenzene ND NA NA NA <br /> Xylenes ND NA NA NA <br /> TPH-Gasoline ND NA NA NA <br /> TPH-Diesel ND 127 114 13 <br /> Method Blank: A method blank demonstrates the presence or <br /> absence of contamination an the analytical <br /> procedure . <br /> ti <br /> Matrix Spike and Matrix Spike Duplicate: A matrix spike as a <br /> sample to which a known amount of analyte has been added. <br /> The percent recovery and percent recovery difference of <br /> the matrix spike and the matrix spike duplicate are <br /> analyzed to measure the accuracy and precision of the <br /> analytical procedure. <br /> NOTES : <br /> TPH: Total Petroleum Hydrocarbons ' <br /> ND : None Detected <br /> NA : Not Available <br /> r� <br /> ��u�ucnc�rj�n�otalor1E, �n� <br /> Tres rIooes,c. v sal, Baaers <br />