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Quality Control Report <br /> for <br /> Hydrocarbons (BTEX, TPH-G, TPH-D) <br /> Analyzed By: K. Spiller Reviewed By: B. Stafford <br /> k <br /> QC Sample ID: 061092 -S-BTEX Spike Level: BTEX 0 . 05ppm <br /> ( NA -S-TPHG TPHG NA <br /> NA -S-TPHD TPHD NA <br /> Sample Matrix: Soil Spiked Sample ID: _ Spiking Soil <br /> I <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 85 87 2 <br /> Toluene ND 93 94 1 <br /> Ethylbenzene ND 100 105 5 <br /> Xylenes ND 98 110 12 <br /> TPH-Gasoline ND NA NA NA <br /> I TPH-Diesel ND NA NA NA <br /> Method Blank: A method blank demonstrates the presence or <br /> absence of contamination in the analytical <br /> procedure. <br /> Matrix Spike and Matrix Spike Duplicate: A matrix spike is 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 /> f ND : None Detected <br /> NA : Not Available <br /> 4 <br /> rr <br /> c. c::7 imi�rg�e oxr toriee.�izc. <br /> Fresno Modesto <br /> V�safia Bakersfield <br />