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Superior PreCWCVn Ana/ytica/, /rnc_ <br /> A member of ESSCON Environmental Support Service Consortium <br /> EPA SW-846 METHOD 8270 SEMIVOLATILE ORGANICS BY GC/MS <br /> Quality Assurance and Control Data - Water <br /> Laboratory Number 92919 <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (ug/L) (ug/L) <br /> bis(2-chloroethyl) ethe: ND<10 10 <br /> aniline: ND<10 10 <br /> phenol: ND<10 10 42/43 9-61 2% <br /> 2-chlorophenol: ND<10 10 76/76 30-113 0% <br /> 1, 3-dichlorobenzene: ND<10 10 <br /> 1, 4-dichlorobenzene: ND<10 10 71/72 42-111 1% <br /> 1,2-dichlorobenzene: ND<10 10 <br /> benzyl alcohol: ND<10 10 <br /> bis-(2-chloroisopropyl : ND<10 10 <br /> methylphenol: ND<10 10 <br /> xachloroethane: ND<10 10 <br /> n-nitroso-dl-n--propyla: ND<10 10 93/94 43-119 1% <br /> 4-methylphenol: ND<10 10 <br /> nitrobenzene: ND<10 10 <br /> isophorone: ND<10 10 <br /> 2-ni.trophenol: ND<10 10 <br /> 2, 4--dimethylphenol : ND<10 10 <br /> bis (2-chloroethoxy) met: ND<10 10 <br /> 2 , 4-dichlorophenol: ND<10 10 <br /> 1, 2, 4-trichlorobenzene: ND<10 10 103/104 44-1.1.8 1?6 <br /> naphthalene: ND<10 10 <br /> benzoic acid: ND<10 10 <br /> 4-chloroaniline: ND<10 10 <br /> hexachlorobutadiene: ND<10 10 <br /> 4-ch loro-3-methylpheno: ND<10 10 101/100 28-117 1% <br /> 2-methyl-naphthalene: ND<10 10 <br /> hexaclorocyclopentadie: ND<10 10 <br /> , 6-trichlorophenol: '24 , Id 1C <br /> 2,4, 5-trichlorophenol: ND<10 10 <br /> Page 5 of 7 <br /> Certified Laboratories <br /> 825 Arnold Or Suite 1 14 1555 Burke St Unit 1 309 S Cloverdale St Suite B-24 <br /> Martinez California 94553 San Francisco California 94124 Seattle Washington 98108 <br /> J5 10) 229-1512 / fax (5 10) 229-1526 J415) 647-2081 / fax (415) 821-7.123 12061 763-2992 / fax (206) 763-8429 <br />