Septic Tank Companies in Minnesota
230 septic service companies across 164 cities — approximately 25% of Minnesota homes use septic systems
Minnesota's subsurface sewage treatment systems (SSTS) are regulated by the Minnesota Pollution Control Agency (MPCA) under Minnesota Rules Chapter 7080-7083, with local administration handled by county environmental services departments and licensed inspectors. Minnesota's landscape — a mix of prairie pothole wetlands in the southwest, sandy glacial outwash in the Brainerd Lakes area, and thin soils over granite bedrock in the Arrowhead region near Lake Superior — creates varied and often challenging conditions for onsite wastewater treatment. The state has one of the most detailed SSTS regulatory frameworks in the country, including mandatory maintenance reporting, a statewide database of systems, and a robust professional licensing program for inspectors, designers, and installers.