The Drinking Water Contaminants of Emerging Concern (CEC) program identifies environmental contaminants for which current health-based standards currently do not exist or need to be updated, investigate the potential for human exposure to these chemicals, and develop guidance values for drinking water. Contaminants evaluated by CEC staff include contaminants that have been released or detected in Minnesota waters (surface water and groundwater) or that have the potential to migrate to or be detected in Minnesota waters.
The Nobles Soil and Water Conservation District (SWCD) will test waters needing data for impairment listing in the Rock River and Little Sioux watersheds. Two reaches of the Little Rock River and the Ocheyedan River need stream water assessments. Iowa Lake needs sampling completed for impairment identification. The project will obtain adequate stream and lake data to either list the tested stream reaches and lake on the 303(d) list as impaired, or provide evidence that the stream reaches and lake is not impaired.