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Superior Preclsian Analytical, /nc. <br /> A member of ESSCON Environmental Support Service Consortium <br /> EPA SW-846 METHOD 8240 - VOLATILE ORGANICS <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) (e) (%} (o) <br /> Chloromethane ND<10 10 <br /> Bromomethane ND<10 10 <br /> Vinyl Chloride ND<10 10 <br /> Chloroethane ND<10 10 <br /> Methylene Chloride ND<10 10 <br /> Acetone ND<20 20 <br /> Carbon Disulfide ND<3 3 <br /> Trichlorofluoromethane ND<3 3 <br /> 1 , 1-Dichloroethene ND<3 3 90/86 61-145 50 <br /> 1 , 1-Dichloroethane ND<3 3 <br /> cis-1 , 2-Dichloroethene ND<3 3 <br /> trans-1, 2-Dichloroethe . ND<3 3 <br /> oroform ND<3 3 <br /> -Dachloroethane ND<1 1 <br /> 2-Butanone ND<20 20 <br /> 1, 1, 1-Trichloroethane . ND<3 3 <br /> Carbon Tetrachloride - ND<3 3 <br /> Benzene ND<1 1 94/93 76-127 1% <br /> Trichloroethene ND<3 3 86/86 71-120 00 <br /> 1, 2-Dzchloropropane ND<3 3 <br /> Bromodichloromethane ND<3 3 <br /> cis-1 , 3-Dichloropropen ND<3 3 <br /> trans-1, 3-Dichloroprop ND<3 3 <br /> 1, 1, 2-Trichloroethane ND<3 3 <br /> Dibromochloromethane . ND<3 3 <br /> Bromoform ND<3 3 <br /> 4-Methyl-2-pentanone ND<10 10 <br /> Toluene ND<3 3 96/95 76-125 106 <br /> 2-Hexanone ND<10 10 <br /> 0 <br /> Perg*d L4bcrEtor+as <br /> 825 Arnold Dr Suite 1 14 1555 Burke St Unft 1 309 S Cloverdale St Suite B-24 <br /> Martinez California 94553 San Francisco California 94124 Seattle Washington 98 108 <br /> (510) 229-1512 / fax (510) 229-1526 (415) 647-2081 / fax 1415) 821-7123 (206) 763-2992/fax (2061 763-2429 <br />