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. a/ ical~Inc. <br /> Superior Precision An yt , <br /> 1555 Burke Unit I ■ San Francisco California 94124 • (415) 647-2081 /fax (415) 821-7123 <br /> �< f <br /> • <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 /> Chloromethane: ND<500 ND<50 <br /> Bromomethane: ND<500 ND<50 <br /> Vinyl Chloride: ND<500 ND<50 � <br /> Chloroethane: ND<500 ND<50 <br /> Methylene Chloride: ND<500 ND<50 <br /> Acetone: ND<500 150 <br /> Carbon Disulfide: ND<150 ND<15 <br /> Trichlorofluoromethane:ND<150 ND<15 <br /> 1, 1-Dichloroethene: ND<150 ND<15 <br /> 1, 1-Dichloroethane: ND<150 ND<15 <br /> t-1, 2-Dichloroethens: ND<150 ND<15 <br /> Chloroform: ND<150 ND<1.5 <br /> 1,2-Dichloroethane: ND<50 ND<5 <br /> 2-Butanone: ND<1000 ND<100 <br /> 1, 1, 1-Trichloroethane: ND<150 ND<15 <br /> Carbon tetrachloride: ND<150 ND<15 <br /> Vinyl Acetate: ND<500 ND<50 <br /> Bromodichloromethane: ND<150 ND<15 <br /> 1, 2-Dichloropropane: ND<150 ND-<15 <br /> c-1,2-Dichloroethene: ND<150 ND<15 <br /> c-1, 3-Dichloropropene: ND<150 ND<15 <br /> Trichloroethene: ND<150 ND<15 <br /> Dibromochloromethane: ND<150 ND<15 <br /> 1, 1, 2-Trichloroethane: ND<150 ND<15 <br /> Benzene: 160 5 <br /> t-1, 3-Dichloropropene: ND<150 ND<15 <br /> Bromoform: ND<150 ND<15 <br /> 4-Methyl-2-Pentanone: ND<500 ND<50 <br /> 2-Hexanone: ND<500 ND<50 <br /> Concentration: ug/kg ug/kg <br /> Page 2 of 5 <br /> Certified Laboratories <br />