Who keeps track of drinking water quality in Minnesota?
Monitoring the quality of drinking water in public water supply systems (those that supply water to the public) is a joint responsibility of the Minnesota Department of Health (MDH) and the state s public water supply systems. Local water supply systems are responsible for taking some of the required water samples, according to a schedule established by MDH. MDH staff collect the remainder of the required samples. Certified laboratories test the water samples for a broad variety of possible contaminants.
