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Sv erior P�cision Ana/ ic�/�inc. <br /> p .Yt' - <br /> 1555 Burke Unit I ■ San Francisco CaVornia 94124 ■ (4 15) 647-2081 /fax (4 15) 821-7123 <br /> • EPA SW-846 METHOD 8240 — VOLATILE ORGANICS ,- un <br /> Quality Assurance and Control Data - Soil <br /> Laboratory Number 15038 <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (ug/kg) (ug/kg) M M <br /> Tetrachloroethene: ND<15 15 <br /> 1, 1,2, 2-Tetracl-ethane: ND<15 15 <br /> Toluene: ND<15 15 110/107 59--139 3% <br /> Chlorobenzene: ND<15 15 116/114 60-133 2% <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: 99 <br /> Toluene-d8: 102 <br /> I*mofluorobenzene: 105 <br /> Definitions: <br /> ND = Not Detected <br /> RPD = Relative Percent Difference ` <br /> RL = Reporting Limit <br /> Ikg = Parts per billion (ppb) Senyor62her#st <br /> File No. 15038 Account Manager <br /> Page 7 of 7 <br /> Certified Laboratories <br />