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Superior Arjeccisicon .,o�a,6vrical. Inc_ <br /> 1555 Burke Unit 1 ■ San Francisco Cafifornia 94124 ■ (415) 647-2081 /fax (415) 82 1-7123 <br /> TOUCHSTONE DEVELOPMENTS Project 2396-1 <br /> Attn: MICHAEL TAMBRONI Reported 20-December-1993 <br /> EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <br /> Laboratory Number Sample Identification Matrix <br /> 15038- 1 SP-1A Soil <br /> 15038- 2 SP-1B Soil <br /> 15038- 3 SP-1C Soil <br /> 15038- 4 SP-1D Soil <br /> 15038- 5 SP-2A Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 15038- 1 15038- 2 15038- 3 15038- 4 15038- 5 <br /> Chloromethane: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> Bromomethane: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> Vinyl Chloride: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> Chloroethane: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> Methylene Chloride: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> Acetone: ND<50 ND<50 ND<50 ND<1000 ND<50 <br /> Carbon Disulfide: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Trichlorof luoromethane:ND<15 ND<15 ND<15 ND<150 ND<15 <br /> 1, 1-Dichloroethene: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> 1, 1-Dichloroethane: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> t-1, 2-Dichloroethene: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Chloroform: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> 1, 2-Dichloroethane: ND<5 ND<5 ND<5 ND<50 ND<5 <br /> 2-Butanone: ND<100 ND<100 ND<100 ND<1000 ND<100 <br /> 1, 1, 1-Trichloroethane: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Carbon tetrachloride: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Vinyl Acetate: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> Bromodichloromethane: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> 1, 2-Dichloropropane: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> c-1, 2-Dichloroethene: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> c-1, 3-Dichloropropene: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Trichloroethene: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Dibromochloromethane: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> 1, 1, 2-Trichloroethane: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Benzene: ND<5 ND<5 ND<5 ND<50 ND<5 <br /> t-1, 3-Dichloropropene: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> Bromoform: ND<15 ND<15 ND<15 ND<150 ND<15 <br /> 4-Methyl-2-Pentanone: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> 2-Hexanone: ND<50 ND<50 ND<50 ND<500 ND<50 <br /> Concentration: ug/kg ug/kg ug/kg ug/kg ug/kg <br /> Page 2 of 7 <br /> Certified Laboratories <br />