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Superior !recision .,,o"a/ytica/, !nc_ <br /> 1555 Burke Unri 1 ■ San Francisco, California 94124 • (415) 647-2081 /fax (415) 821-7123 <br /> EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <br /> Quality Assurance and Control Data - Soil <br /> Laboratory Number 30505 <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (ug/kg) (ug/kg) <br /> i <br /> Tetrachloroethene: ND<15 15 <br /> 1, 1, 2, 2-Tetracl-ethane: ND<15 15 <br /> Toluene: ND<15 15 94/92 59-139 2% <br /> Chlorobenzene: ND<15 15 92/91 60-133 1% <br /> Ethyl Benzene: ND<15 15 <br /> Styrene: ND<15 15 <br /> Xylenes: ND<15 15 <br /> 1,3-Dichlorobenzene: ND<15 15 <br /> 1,4-Dichlorobenzene: ND<15 15 <br /> 1,2-Dichlorobenzene: ND<15 15 <br /> 1,2-Dichloroethane-d4 : 90 <br /> Toluene-da: 101 <br /> Bromof luorobenz ene: 88 <br /> Definitions: <br /> ND = Not Detected <br /> RPD = Relative Percent Difference <br /> RL = Reporting Limit <br /> ug/kg = Parts per billion (ppb) Seni3r Chemist <br /> 4PFile No. 30505 Account=Manager <br /> i@d ft,oRorie� <br />