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Superior P ision In <br /> y�ica/ c.o <br /> 1555 Burke Unit 1 ■ San Francisco California 94124 ■ f4 15) 647-2081 /fax (4 15) 82 1-7 123 <br /> 10 EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <br /> _Quality Assurance and Control Data - Soil <br /> Laboratory Number 15043 <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (ug/kg) (ug/kg) M ($) M <br /> Chloromethane: ND<50 50 <br /> Bromomethane: ND<50 50 <br /> Vinyl Chloride: ND<50 50 <br /> Chloroethane: ND<50 50 <br /> Methylene Chloride: ND<50 50 <br /> Acetone: ND<50 50 <br /> Carbon Disulfide: ND<15 15 <br /> Trichlorofluoromethane: ND<15 15 <br /> 1, 1-Dichloroethene: ND<15 15 98/100 59-172 2% <br /> 1, 1-Dichloroethane: ND<15 15 <br /> t-1, 2-Dichloroethene: ND<15 15 <br /> loroform: ND<15 15 <br /> -Dichloroethane: ND<5 5 <br /> utanone: ND<100 100 <br /> 1, 1, 1-Trichloroethane: ND<15 15 <br /> Carbon tetrachloride: ND<15 15 <br /> Vinyl Acetate: ND<50 50 <br /> Bromodichloromethane: ND<15 15 <br /> 1, 2-Dichloropropane: ND<15 15 <br /> c-1, 2-Dichloroethene: ND<15 15 <br /> c-1, 3-Dichloropropene: ND<15 15 <br /> Trichloroethene: ND<15 15 94/96 62-137 2� <br /> Dibromochloromethane: ND<15 15 <br /> 1, 1, 2-Trichloroethane: ND<15 15 <br /> Benzene: ND<5 5 104/103 66-142 1$ <br /> t-1, 3-Dichloropropene: ND<15 15 <br /> Bromoform: ND<15 15 <br /> 4-Methyl--2-Pentanone: ND<50 50 <br /> 2-Hexanone: ND<50 50 <br /> Page 6 of 7 <br /> Certified Laboratories <br />