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i <br /> I <br /> o Superior ,recision AnaiyticcyL Inc <br /> 1555 Burke, Unit I • San Francisco, California 94124 (415) 647-2081 / fax (4 15) 82 1 -7 123 <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 /> bis ( 2 - chloroethyl ) ethe : ND< 300 300 <br /> aniline : ND< 400 400 <br /> phenol : ND< 300 300 68 / 69 55 - 105 1 % <br /> 2 - chlorophenol : ND< 300 300 69 / 71 60 - 111 3 % <br /> 1 , 3 -dichlorobenzene : ND< 400 400 <br /> 1 , 4 -dichlorobenzene : ND< 400 400 64 / 65 52 - 116 2 % <br /> 1 , 2 -dichlorobenzene : ND< 300 300 <br /> benzyl alcohol : ND< 300 300 <br /> bis - ( 2 - chloroisopropyl : ND< 300 300 <br /> 2 -methylphenol : ND< 300 300 <br /> hexachloroethane : ND< 400 400 <br /> n-nitroso -di -n-propyla : ND< 300 300 70 / 71 59 - 130 1 % <br /> 4 -methylphenol : ND< 300 300 <br /> nitrobenzene : ND < 300 300 <br /> isophorone : ND< 300 300 <br /> 2 -nitrophenol : ND< 300 300 <br /> 2 , 4 -dimethylphenol : ND< 300 300 <br /> bis ( 2 -chloroethoxy ) met : ND< 300 300 <br /> 2 , 4 -dichlorophenol : ND< 300 300 <br /> 1 , 2 , 4 -trichlorobenzene : ND< 300 300 74 / 75 45 - 119 1 % <br /> naphthalene : ND< 300 300 <br /> benzoic acid : ND< 300 300 <br /> 4 -chloroaniline : ND< 400 400 <br /> hexachlorobutadiene : ND< 400 400 <br /> 4 - chloro - 3 -methylpheno : ND< 300 300 75 / 76 50 - 120 1 % <br /> 2 -methyl -naphthalene : ND< 300 300 <br /> hexaclorocyclopentadie : ND< 300 300 <br /> 2 , 4 , 6 - trichlorophenol : ND < 300 300 <br /> 2 , 415 -trichlorophenol : ND< 800 800 <br /> i <br /> Page 5 of 7 <br /> i <br /> Certified Laboratories <br /> f <br />