Welcome to the State of California 

Emerging Contaminants 

 Last Update:  February 21, 2014

This page contains links to information about new and emerging contaminants that pertain to drinking water and to recycled water.

New and emerging contaminants are unregulated and may be new contaminants (e.g., MTBE, now regulated in California) or those that may have been present but not detected (e.g., perchlorate, now also regulated in California).  Other examples such contaminants are 1,2,3-trichloropropaneNDMA and other nitrosamines and 1,4-dioxane.

Also among the emerging contaminants are pharmaceuticals and personal care products, industrial chemicals present at low concentrations, and chemicals that may affect hormone status, referred to as "endocrine disruptors." 

LIsted below are links for more information about emerging contaminants.

Last modified on: 3/21/2014 12:26 PM