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o Superior Pre ,01sion Anaiyticai, . )c <br /> 1555 Burke, Unit I • San Francisco, California 94124 )415) 647-2081 / fax [4 15) 821 7123 <br /> EPA SW- 846 METHOD 8270 SEMIVOLATILE ORGANICS BY GC / MS <br /> Quality Assurance and Control Data - Soil <br /> Laboratory Number 15540 <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> ( ug / Kg ) ( ug / Kg ) ( % ) ( % ) ( % ) <br /> 2 -chloronaphthalene : ND< 300 300 <br /> 2 -nitroaniline : ND< 800 800 <br /> acenaphthylene : ND< 300 300 <br /> dimethylphthlate : ND< 300 300 <br /> 2 , 6 -dinitrotoluene : ND< 300 300 <br /> acenaphthene : ND< 300 300 74 / 77 55 - 112 4 % <br /> 3 -nitroaniline : ND< 800 800 <br /> 2 , 4 -dinitrophenol : ND< 800 800 <br /> dibenzofuran : ND< 300 300 <br /> 2 , 4 - dinitrotoluene : ND< 300 300 72 / 73 40 - 101 1 % <br /> 4 -nitrophenol : ND< 800 800 60 / 65 11 - 157 8 % <br /> fluorene : ND< 300 300 <br /> 4 -chlorophenyl -phenyle : ND< 300 300 <br /> diethylphthlate : ND< 300 300 <br /> 4 -nitroaniline : ND< 800 800 <br /> 4 , 6 -dinitro- 2 -methylph : ND< 800 800 <br /> n-nitrosodiphenylamine : ND< 400 400 <br /> 4 -bromo-phenyl -phenyle : ND< 300 300 <br /> hexachlorobenzene : ND< 300 300 <br /> pentachlorophenol : ND< 800 800 65 / 69 17 - 144 6 % <br /> phenanthrene : ND< 300 300 <br /> anthracene : ND< 300 300 <br /> di -n-butylphthlate : ND< 300 300 <br /> fluoranthene : ND< 300 300 <br /> benzidine : ND< 2000 2000 <br /> pyrene : ND< 300 300 79 / 81 55 - 136 3 % <br /> butylbenzylphthlate : ND< 300 300 <br /> 3 . 3 ' -dichlorobenzidine : ND < 700 700 <br /> benzo ( a ) anthracene : ND < 300 300 <br /> Page 6 of 7 <br /> Certified Laboratories <br />