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a }'S25 CITY OF STCCKTO9 WELLS I ST1t'e v'�aiit Chellcal Anda 7 `✓ ; f10 - Benjaain Holt EPA MCL DLR ; 5/13 9/09 11/16 3115 5/17 9116 1/03 3/28 ; CONSTITUENT Method ug/L ug/L ; 1988 1988 1988 1989 1989 1989 1990 1991 ; Bromodichloromethane w 502,2 N�0.50 ; nd � M -nd nd - nd - - nd ; Bromofora 501.2 0.50 ; nd nd nd nd nd ; Chloroform 502.2 0.50 ; nd nd . nd nd nd ; Dibroaochloromethane 501.2 0.50 ; nd nd nd nd nd ; Benzene 501.2 1 0.50 ; nd nd nd nd nd nd nd ; Carbon tetrachloride 502.2 0.5 0.50 nd nd nd nd nd nd nd ; Ethyl benzene 502.2 680 0.50 ; nd nd nd nd nd ; 1,4-Dichlorobenzene 501.2 5 0.50 nd nd nd nd nd nd nd ; 1,2-Dichlorcethane 502.2 0.5 0.50 ; nd nd nd nd nd nd nd ; 1,1-Dichloroethylene 502.2 6 0.50 nd nd nd nd nd nd nd ; c-1,3-Dichloropropene 501.2 0.50 ; nd nd ' t-1,3-Dichloroppropene 501.1 0.50 ; nd nd ; Total 1,3-dichloropropene 502.1 0.5 0.50 nd nd nd ; Monochlorobenzene 501.2 30 0.50 ; nd nd nd nd nd ; 1,1,1,2-Tetrachloroethane 502.2 1 0.50 nd nd nd nd nd ; Tetrachloroethylene (PCE) 502.1 5 0.50 ; nd nd nd nd nd ; 1,1,1-Trichloroethane 502.2 200 0.50 ; nd nd nd nd nd nd nd ; 1,1,2-Trichloroethane 502.1 32 0.50 nd nd nd nd nd ; Trichloroethylene (TCE) 502.2 5 0.50 ; nd nd nd nd nd nd nd ; Vinyl chloride 502.2 0.5 0.50 ; nd nd nd nd nd nd nd 1 m/p-Xylene 502.2 0.50 ; nd nd nd nd ; a-Xylene 502.2 0.50 nd nd nd nd ; Total xylenes 502.2 1750 0.50 ; nd nd nd ; Dibromochloropropane (DBCP) 504 0.2 0.01 ; nd nd nd nd nd ; Ethylene dibromide (EDB) 504 0.02 0.02 ; nd nd nd nd nd ; Atrazine 507 3 1.0 ; nd nd ; Simazine 507 10 1.0 ; nd nd ; Carbofuran - - Waived by DHS - - ; ; Glyphosate - - Waived by DNS - - ; ; Chlordane - - Waived by DHS - - ; ; Heptachlor - - Waived by DHS - - ; ; Heptachlor epoxide - - Waived by DHS - - ; ; Diethylhexylphthalate - - Waived by DHS - - ; ; Endrin 0.2 ; (0.01 ; Lindane 4 ; (0,4 ; Methoxychlor 100 ; (10 ; Toxapphene 5 11 (0.5 ; 2,4-D 100. ; (10 ' 1,4,5-TP Silvex 10 Bromobenzene 502.2 0.50 ; nd nd nd nd nd ; Bromochloromethane 501.2 0.50 ; nd nd nd nd ; Broaoaethane 502.2 0.50 ; nd nd nd nd nd ; n-Butylbenzene 502.2 0.50 ; nd nd nd nd ; Sec-butMenzene 502.1 0.50 ; nd nd nd nd Tert-butylbenzene 502.1 0.50 nd nd nd nd ; Chloroethane 501.2 0.50 nd nd nd nd nd ; Chloromethane 502.2 0.50 ; nd nd nd nd nd ; 1-Chlorotoluene 502.2 0.50 ; nd nd nd nd nd ; 4-Chlorotoluene 502.2 0.50 ; nd nd nd nd nd ; Dibromomethane 502.2 0.50 ; nd nd nd nd nd ; 1,2-Dichlorobenzene 502.2 0.50 ; nd nd nd nd nd ; 123-Dichlorobenzene 502.2 0.50 ; nd nd nd nd nd ; Dichlorodifluoromethane 502.2 0.50 ; nd nd nd nd ; 1,1-Dich)orcethane 502.2 TBD 0.50 ; nd nd nd nd nd ; c-1,2-Dichloroethylene 502.2 TBD 0.50 nd nd nd nd nd ; t-1,2-Dichloroethylene 502.2 TBD 0.50 ; nd nd nd nd nd ; 1,2-Dichloropropane 501.2 TBD 0.50 ; nd nd nd nd nd ; 1,3-Dichloropropane 501.2 0.50 ; nd nd nd nd nd ; 2,2-Dichloropropane 502.2 0.50 ; nd nd nd nd nd ; 1,1-Dichloropproaene 502.2 0.50 ; nd nd nd nd nd ; Hexachlorobutadiene 502.2 0.50 ; nd nd nd nd ; Isopropylbenzene 501.2 0.50 ; nd nd nd nd ; t-Isopropyltoluene 502.2 0.50 ; nd nd nd nd ; ichlaromethane 502.2 0.50 ; 4.1 nd nd nd nd ; Nappthalene 502.2 0.50 ; nd nd nd nd ; n-Propylbenzene 501.2 0.50 ; nd nd nd nd ;. Styrene 502.2 0.50 ; nd nd nd nd nd ; 1,1,1,1-Tetrachloroethane 502.2 0.50 nd nd nd nd nd ; Toluene 502.1 0.50 ; nd nd nd nd nd ; 192,4-Trichlorobenzene 502.2 0.50 nd nd nd nd ; 1,2,3-Trichlorobenzene 502.2 0.50 ; nd nd nd nd ; Trichlorofluoromethane 502.1 TBD 0.50 ; nd nd nd nd ; 1,2,3-Trichloropropane 502.1 0.50 ; nd nd nd nd nd ; Tr ichlorotrifluoroethane 502.1 TBD 0.50 ; nd nd nd nd ; 1,2,4-Trimethylbenzene 502.2 0.50 ; nd nd nd nd ; 1,3,5-Trimethylbenzene 502.2 0.50 ; nd nd nd nd ; ------------------------------------------ --------------------------------------- MCL - Mazimum Contaminant Level. TBD To be detereined. ao}or}nri :a n, 0 -- ------