Michigan Septic Regulation Bill Advances Toward Senate Passage

Michigan's Senate is positioned to approve a long-debated statewide septic inspection measure, moving the state closer to regulating systems that are currently overseen by varied local rules. The bill, SB 771, would have the Department of Environment, Great Lakes, and Energy set periodic inspections for more than 1.3 million onsite septic systems, with a target of every 10 years. Its prospects in the House remain uncertain as local officials raise concerns about implementation and property rights.
Michigan is the only state without one uniform framework for septic system construction, upkeep, and inspection. Its 45 local health departments each set their own policies, and many require no checks after initial installation. Twelve of Michigan’s 83 counties have adopted local septic ordinances.
SB 771 would direct EGLE to create periodic review rules for over 1.3 million systems, with a goal of inspections every 10 years. Older systems and those near lakes or other sensitive environmental features would be prioritized. Homeowners could face civil penalties for missing evaluations or failing to make needed repairs.
If enacted, the proposal could affect homeowners with onsite systems, local health agencies, and people buying or selling rural property. More regular reviews may catch failures that threaten wells, lakes, and rivers, potentially lowering health and environmental risks. At the same time, inspection costs, timelines, and enforcement could burden some residents and challenge local implementation. The House’s response may shape how soon any statewide system begins.