Drinking water standards are set by the U.S. Environmental Protection Agency and regulated through the Safe Drinking Water Act. Here, standards are enforced by the Minnesota Department of Health (MDH) and Minnesota Pollution Control Agency.
The City of Edina works with the MDH to test drinking water for more than 100 contaminants. It is not unusual to detect contaminants in small amounts. No water supply is ever completely free of contaminants. Drinking water standards protect people from substances that may be harmful to their health.