Emergency: All St. Louis County offices are now open to the public.

Information on COVID-19, vaccines and testing


On-Site Wastewater (Septic Systems)



Notice: On-Site Wastewater Inspections during the COVID-19 Outbreak

The On-Site Wastewater Division is responsible for the administration and coordination of on-site wastewater treatment systems throughout St. Louis County. The division regulates the St. Louis County Subsurface Sewage Treatment System Ordinance 61, along with incorporating by reference minimum standards established by Minnesota statutes and administrative rules of the Minnesota Pollution Control Agency (MPCA). These regulations are intended to serve the best interests of the County's citizens by protecting their health, safety, general welfare and natural resources.

Buying-Selling Property
Financial Assistance-Septic
Training and Education

Apply Now

    1. New! Online Permitting is here! Click here to apply for a septic permit online.
    2. New! Septic Records Online: Click Here
    3. New! Free Subscription service about septic news: Click Here

For further information, email us at: oswinfo@stlouiscountymn.gov