Lake Michigan

What We Do

Protecting public health and the drinking water supply for millions of people takes the expertise of hundreds of specially skilled and dedicated employees.
MMSD is a national leader in wastewater treatment, flood management, and green infrastructure, a recipient of the U.S. Water Prize and many other awards.
We are most proud of our record of 98.6% since 1994 for capturing and cleaning wastewater from 28 communities in 423 square miles. Many metropolitan areas struggle to capture and clean the national goal of 85% of all the rain and wastewater that enters their sewer systems.