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Closing a septic system for the winter is a vital task for seasonal homeowners to prolong the life of the system and to keep it operating at peak performance.
Download Privy/Outhouse Information Sheet (Word Document)
Freezing of onsite wastewater systems can be prevented with a combination of appropriate design, installation, and homeowner or commercial owner maintenance. The St. Louis County Environmental Services Staff and Technical Advisory Committee have reviewed many of the means to help prevent freezing of septic systems. The best design, installation, and management practices are:
Design and Installation:
To find a septic contractor in Minnesota, visit the MPCA search page.
More information about applying for a septic permit can be found on our Onsite Wastewater page.
St. Louis County Courthouse
100 North 5th Avenue West
Duluth, MN 55802