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Orgaaic Chemical Analyses CITY OF STCCKTCN WELLSOa <br /> 110 - Benjamin Holt ; <br /> EPA M� DLR ; 5/23 9/09 11/16 3/15 5/11`''9/26 1/03 3/18 <br /> C <br /> ONSTITUENT Method ug/L ug/L ; 1988 1988 1988 1989 1989 1989 1990 1991 <br /> ------------------------loromethane 502.2 0.50 1 nd nd nd nd nd <br /> Brosoform 502.2 0.50 nd nd nd nd nd . <br /> Chloroform 501.2 0.50 1 nd nd . nd nd nd <br /> Dibrosochloromethane 501.1 0.50 1 nd nd nd nd nd <br /> Benzene 502.2 1 0.50 1 nd nd nd nd nd nd nd ; <br /> Carbon tetrachloride 502.2 0.5 0.50 1 nd nd nd nd nd nd nd <br /> Ethyl benzene 502.2 680 0.50 1 nd nd nd nd nd 1 <br /> 1,4-Dichlarobenzene 501.1 5 0.50 1 nd nd nd nd nd nd nd 1 <br /> 1,2-Dichloroethane 502.1 0.5 0.50 ; nd nd nd nd nd nd nd 1 <br /> 1,1-Dichloroethylene 501.2 6 0.50 ; nd nd nd nd nd nd nd 1 <br /> c-1,3-Dichloropropene 501.2 0.50 1 nd nd ; <br /> t-1,3-Dichlorappropene 502.2 0.50 nd nd <br /> Total 1,3-dichloraprDpene 502.2 0.5 0.50 ; nd nd nd <br /> Monochlorobenzene 502.1 30 0.50 1 nd nd nd nd nd 1 <br /> 1,1,1,2-Tetrachloroethane 501.2 1 0.50 1 nd nd nd nd nd 1 <br /> Tetrachloroethylene (PCE) 502.1 5 0.50 ; nd nd nd nd nd 1 <br /> 1,1,1-Trichloroethane 502.2 200 0.50 nd nd nd nd nd nd nd <br /> 1,1,2-Trichloroethane 502.1 32 0.50 ; nd nd nd nd nd 1 <br /> Trichloroethylene (TCE) 502.2 5 0.50 1 nd nd nd nd nd nd nd 1 <br /> Vinyl chloride 502.2 0.5 0.50 1 nd nd nd nd nd nd nd 1 <br /> 21 <br /> -Iylene 502.1 0.50 1 nd nd nd nd 11 <br /> o-Xylene 502.2 0.50 1 nd nd nd nd <br /> Total xylenes 501.2 1750 0.50 1 nd nd nd 1 <br /> Dibromochloropropane (DBCP) 504 0.2 0.01 1 nd nd nd nd nd 1 <br /> Ethylene dibroside (EDB) 504 0.01 0.01 1 nd nd nd nd nd 1 <br /> Atrazine 507 3 1.0 1 nd nd <br /> Simazine 507 10 1.0 1 nd nd <br /> Carbofuran - - Waived by DHS - - 1 ; <br /> Glyphosate - - Waived by DHS - - ; <br /> Chlordane - - Waived by DHS - - 1 ; <br /> Heptachlor - - Waived by DHS - - 1 <br /> Heptachlor epoxide - - Waived by DHS - - 1 ; <br /> Diethylhexylphthalate - - Waived by DHS - - 1Endrin 2 ; <br /> Lindane 0.4 1 <C.01 <br /> 0.4 <br /> Methoxychlor 100 1 (10 t ' <br /> Toxapphene 5 ; <0.5 <br /> 2,4-D 100_ (10 <br /> 2,4,5-TP Silvex 10 1 U ; <br /> Bromobenzene 502.2 0.50 1 nd nd nd nd nd <br /> Brosochlorosethane 501.2 0.50 1 nd nd nd nd 1 <br /> Bromomethane 50).2 0.50 nd nd nd nd nd 1 <br /> n-Butylbenzene 502.2 0.50 nd nd nd nd 1 <br /> Sec-butylbenzene 502.1 0.50 1 nd nd nd nd 1 <br /> Tert-butylbenzene 502.2 0.50 ; nd nd nd nd <br /> Chloroethane 502.2 0.50 nd nd nd nd nd 1 <br /> Chlorosethane 502.2 0.50 1 nd nd nd nd nd 1 <br /> 2-Chlorotoluene 502.2 0.50 1 nd nd nd nd nd 1 <br /> 4-Chlorotoluene 502.2 0.50 1 nd nd nd nd nd 1 <br /> Dibrososethane 501.2 0.50 nd nd nd nd nd <br /> 1,2-Dichlorobenzene 502.1 0.50 1 nd nd nd nd nd <br /> 1=3-Dichlorobenzene 502.2 0.50 1 nd nd nd nd nd <br /> Dichlorodifluorosethane 502.2 0.50 1 nd nd nd nd 1 <br /> 1,1-Dichloroethane 502.2 TBD 0.50 1 nd nd nd nd nd 1 <br /> c-1,2-Dichloroethylene 502.2 TBD 0.50 1 nd nd nd nd nd 1 <br /> t-1,2-Dichloroethylene 501.2 TBD 0.50 1 nd nd nd nd nd 1 <br /> 1,2-Dichloropropane 502.2 TBD 0.50 ; nd nd nd nd nd 1 <br /> 1,3-Dichloropropane 502.2 0.50 1 nd nd nd nd nd 1 <br /> 2,2-Dichloropropane 502.2 0.50 1 nd nd nd nd nd 1 <br /> 1,1-Dichloroppropene 502.2 0.50 1 nd nd nd nd nd 1 <br /> Hexachlorobutadiene 502.1 0.50 nd nd nd nd 1 <br /> Isopropylbenzene 501.2 0.50 1 nd nd nd nd 1 <br /> t-Isopropyltoluene 502.2 0.50 1 nd nd nd nd 1 <br /> ichloroaethane 502.2 0.50 1 4.1 nd nd nd nd 1 <br /> Happthalene 502.2 0.50 1 nd nd nd nd 1 <br /> n-Propylbenzene 501.2 ' 0.50 ; nd nd nd nd <br /> Styrene 502.2 0.50 1 nd nd nd nd nd 1 <br /> 1,1,1,2 <br /> -Tetrachloroethane 502.2 0.50 1 nd nd nd nd nd 1 <br /> Toluene 502.2 0.50 1 nd nd nd nd nd I <br /> 1,2,4-Trichlorobenzene 502.2 0.50 1 nd nd nd nd 1 <br /> 1,2,3-Trichlorobenzene 502.2 0.50 1 nd nd nd nd 1 <br /> Trichlorofluoroaethane 502.2 TBD 0.50 1 nd nd nd nd 1 <br /> 1,2,3-Trichloropropane 502.2 0.50 1 nd nd nd nd nd 1 <br /> Trichlorotrifluaroethane 502.2 TBD 0.50 nd nd nd nd 1 <br /> 1,2,4-Trimethylbenzene 502.2 0.50 1 ' nd nd nd nd <br /> 1,3,5-Trimethylbenzene 502.2 0.50 1 nd nd nd nd 1 <br /> ------------------------------------------------------------------------------------------- <br /> MCL - Maximum Contaminant Level. TBD To be detersined. <br /> n� - ►Ind ?ci or}eri ]L nID IT%,4­I.' t :-:a <br />