date:May 04, 2012
EPA selected the contaminants by first reviewing the agencys contaminant candidate list, which highlights priority contaminants that need additional research to support future drinking water protections. The contaminants on the list are known or anticipated to occur in public water systems. However, they are not addressed by existing national drinking water standards. Additional contaminants of concern were selected based on current occurrence research and health-risk factors.
EPA has standa