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i V <br /> Superior Precision �ria/ytica/, Inc. <br /> 1555 Burke Unit I ■ San Francisco California 94124 • {4 1 5J 647-2081 / fax (415} 82 1-7 123 <br /> METHOD 8270 SEMIVOLATILE ORGANICS BY GC/MS � <br /> Quality Assurance and Control Data - Soil <br /> Laboratory Number 14713 <br /> Average <br /> Method Spike <br /> Compound Blank PQL Recovery Limits RPD <br /> (ug/Kg) (ug/Kg) <br /> bis(2-chloroethyl) ethe: ND<330 330 <br /> aniline: ND<330 330 <br /> phenol: ND<330 330 89% 26-90 6% <br /> 2-chlorophenol: ND<330 330 95$ 25-102 6% <br /> 1, 3-dichlorobenzene: ND<330 330 <br /> 1, 4-dichlorobenzene: ND<330 330 67% 28-104 6% <br /> 1,2-dichlorobenzene: ND<330 330 <br /> benzyl alcohol: ND<330 330 <br /> bis-(2-chloroisopropyl: ND<330 330 <br /> 2-methylphenol: ND<330 330 <br /> hexachloroethane: ND<330 330 <br /> n-nitroso-di-n-propyla: ND<330 330 76% 41-126 7% <br /> ethylphenol: ND<330 330 <br /> robenzene: ND<330 330 <br /> isophorone: ND<330 330 <br /> 2-nitrophenol: ND<330 330 <br /> 2, 4-dimethylphenol: ND<330 330 <br /> bis (2-chloroethoxy)met: ND<330 330 <br /> 2 ,4-dichlorophenol: ND<330 330 <br /> 1,2,4-trichlorobenzene: ND<330 330 67% 38-107 5% <br /> naphthalene: ND<330 330 <br /> benzoic acid: ND<330 330 <br /> 4-chloroaniline: ND<330 330 <br /> hexachlorobutadiene: ND<500 500 <br /> 4-chloro-3-methylpheno: ND<330 330 102% 26-103 9% <br /> 2-methyl-naphthalene: ND<330 330 <br /> hexaclorocyclopentadie: ND<330 330 <br /> 2 , 4, 6-trichlorophenol: ND<330 330 <br /> 2 ,4 ,5-trichlorophenol: ND<800 800 <br /> 0 <br /> Page 5 of 7 <br /> Certified Laboratories <br />