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VOLATILE AROMATIC COMPOUNDS <br /> MODIFIED EPA METHOD 8020 (BTEB) <br /> AND <br /> TOTAL VOLATILE HYDROCARBONS <br /> Project: 2235 E. Cheroke Lab Project <br /> Road Number. 2576 <br /> Sample Lab ID <br /> Location: 1-West Number: 34990 <br /> Sample Date <br /> Number: 40431 Received: 12/21/89 <br /> Date Date <br /> Sampled: 12/x/89 Analyzed: 12/28/89 <br /> ANALYTE REPORTING <br /> COMPOUND CONCENTRATION LIMIT <br /> ug/g ug/g <br /> (Ppm) (ppm) <br /> Benzene BRL 20. <br /> Toluene BRL 20. <br /> Ethyl Benzene BRL 20. <br /> p-Xylene BRL * 20. <br /> m-Xylene BRL ,* 20.. <br /> o-Xylene BRL * 20. <br /> Total Volatile Hydrocarbons BRL 1000.. <br /> Surrogate recovery (percent) : <br /> a,a,a-Trifluorotoluene 113 <br /> Comments: 1:1000 dilution required due to heavy late eluting <br /> matrix interference. <br /> * m-xylene, p-xylene and o-xylene recovered at 19 ppm, 6 ppm, <br /> and 15 ppm respectively, which is below reporting limit. <br /> Approved By: Date: 12/28/89 <br /> A. Putnam <br /> McLaren <br />