Milwaukee County
Waukesha County
Ozaukee and Washington counties
MMSD member communities
MMSD lists 29 communities in the Greater Milwaukee Area in its service area (MMSD, About Us (service area)). Its Pipe Check program is open to one- and two-family homes in that service area and pays incentives when an MMSD Approved Contractor disconnects clear water, such as a foundation drain or sump discharge, from the sanitary sewer (MMSD, Residential Pipe Check Program (incentives last updated Jan 1, 2026)).
In suburban Milwaukee County, the county's Housing Division offers no-interest home repair loans to income-qualified homeowners. MMSD says that program can't currently be paired with Pipe Check (MMSD, Residential Pipe Check Program (incentives last updated Jan 1, 2026)). Waukesha and South Milwaukee are not on MMSD's list, so Pipe Check doesn't apply there.
Each member town still sets its own permit and discharge rules, so ask the city or village before you reroute a sump or downspout. The communities on this site that MMSD lists: