Application of Endocrine Activity Standards to Regulated Chemicals

This project evaluated two groups of chemicals recognized as endocrine active chemicals (EACs) that include individual chemicals currently regulated in drinking water by the U.S. Environmental Protection Agency (EPA): (1) anions that can inhibit thyroid function including nitrate, and (2) chlorotriazine herbicides that can affect reproductive function including atrazine. This project was intended to inform the water community about the concepts, issues, unknowns, and implications of the potential regulatory impacts of changing MCLs for existing regulated contaminants, as well as currently unregulated contaminants that might become candidates for regulation. The primary final deliverable is a white paper that focuses on potential regulatory impacts. The research also produced a background document, available under project papers, that provides the technical basis for the white paper. Research partner: AWWA WITAF. Published in 2013.