river nitrate pollution

by Cami Koons, Iowa Capital Dispatch
August 12, 2025

The U.S. Environmental Protection Agency has rescinded its previous decision to add seven segments to Iowa’s list of impaired waters due to their high nitrate concentrations. 

In November the agency decided the Iowa Department of Natural Resources’ list of impaired waters only “partially” met the requirements of the Clean Water Act to identify waterways with identified pollutants in excess of water quality standards.