260 West Seeboth Street , Milwaukee, WI 53204
Our main job is to help protect Lake Michigan. MMSD is a regional government agency that provides water reclamation and flood management services for about 1.1 million people in 28 communities in the Greater Milwaukee Area. We serve 411 square miles that cover all, or segments of, six watersheds. Established by state law, the District is governed by 11 commissioners with taxing authority.