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Su erior precision Ana/ ica� /nom. <br /> P Yt <br /> 1555 Burke, Unit I ■ San Francisco, California 94124 ■ (415) 647-2081 /fax (415) 821-7123 <br /> Touchstone Developments Project 2396-1 <br /> Attn: MICHAEL TAMBRONI Reported 27-December-1993 <br /> EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <br /> Laboratory Number Sample Identification Matrix <br /> 15049- 3 OX-3-16' soil <br /> 15049- 6 OX-6- 16' Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 15049- 3 15049- 6 <br /> Tetrachloroethene: ND<150 ND<15 <br /> iJ <br /> 1,1,2,2-Tetracl-ethane:ND<150 ND<15 <br /> Toluene: 360 ND<15 <br /> Chlorobenzene: ND<150 ND<15 - <br /> Ethyl Benzene: ND<150 ND<15 <br /> • Styrene: ND<150 ND<15 <br /> Xylenes: 480 ND<15 <br /> 1,3-Dichlorobenzene: ND<150 ND<15 <br /> 1,4-Dichlorobenzene: ND<150 ND<15 <br /> 1,2-Dichlorobenzene: ND<150 ND<15 <br /> Concentration: ug/kg ug/kg <br /> -- Surrogate % Recoveries -- <br /> 1,2-Dichloroethane-d4: 96 94 <br /> Toluene-d8: 99 100 <br /> Bromofluorobenzene: 101 99 <br /> i <br /> Page 3 of 5 <br /> Certified Laboratories <br />