Septic systems in Wisconsin
Permits, inspections, and records for septic systems.
Wisconsin septic system permits
Wisconsin calls a septic system a private onsite wastewater treatment system, or POWTS. Your county issues the permit under state plumbing rules. Start here for the rules, the soil test and the county.
About septic systems
Find the state or local program responsible for septic permits, inspections, and system records. The responsible agency and application process depend on the state and property location.