EPA Decides About 11 Contaminants
The U.S. Environmental Protection Agency has decided against regulating 11 contaminants on the second drinking water contaminant candidate list. Due to a "preliminary regulatory determination" the EPA has decided that based on a review of health effects and occurrence data, specific contaminants do not occur at high enough levels to be of concern in public water systems. Two contaminants under review, perchlorate and MTBE, will require additional review in order to assess human exposure levels and the subsequent health risks.
The 11 contaminants on the list include naturally occurring substances, pesticides, herbicides, and chemicals used in manufacturing. The list of 11 chemicals is as follows: boron; dacthal mono; di-acid degradates,;1,1-dichloro- 2,2-bis (p-chlorophenyl ethylene (DDE); 1,3-dichloropropene,;2,4-dinitrotoluene; 2,6-dinitrotoluene; s-ethyl propyl thiocarbamate; fonofos; terbacil; 1,1,2,2-tetrachloroethane. More can be learned about the contaminant list on the EPA's website.
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