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Table 12

Just Add Water: Table 12

May 1, 1996

Table 12.

Fourty (40) pesticides or industrial chemicals violated federal health standards in 325 drinking water systems in 1994-1995.

 
Chemical or Pesticide Number of
Water Systems
Affected
Population
Served
 
Any Chemical or Pesticide Violation 325 935,203
 
Atrazine 58 114,503
Tetrachloroethylene 44 411,824
Trichloroethylene 30 278,141
Copper 26 24,980
Thallium (Total) 22 19,100
Dichloromethane (Methylene Chloride) 17 74,463
Lead 17 10,806
Antimony (Total) 16 5,930
1,1-Dichloroethylene 14 4,336
Barium 12 54,808
Fluoride 11 75,057
Benzene 10 41,575
Sodium 9 4,651
Carbon Tetrachloride 8 4,826
bis(2-Ethylhexyl) Phthalate 8 4,066
Ethylene Dibromide (EDB) 8 3,263
Arsenic 6 9,757
Cyanide 5 14,128
Beryllium (Total) 5 1,755
1,2-Dichloropropane 5 1,124
1,2-Dichloroethane 4 54,687
Cadmium 4 37,656
1,1,1-Trichloroethane 4 18,357
Di(2-Ethylhexyl) Phthalate 4 3,722
cis-1,2-Dichloroethylene 4 863
Vinyl Chloride 4 185
Nickel 4 172
Chloride 3 1,499
Mercury 3 555
trans-1,2-Dichloroethylene 3 498
1,1,2-Trichloroethane 3 350
Iron 2 164
Monochlorobenzene (Chlorobenzene) 2 94
2,4-D 1 720
Manganese 1 678
Di(2-Ethylhexyl) Adipate 1 250
Dichlorodifluoromethane 1 100
Ethylbenzene 1 44
o-Xylene 1 44
Xylenes (Total) 1 25
     
Any Chemical or Pesticide Violation 325 935,203
 
Source: Environmental Working Group. Compiled from EPA Safe Drinking Water Information System 1994-1996.