Subsurface Sewage Treatment Systems (SSTS)

  1. Apply for a Permit
  2.  Inspections
  3. Operating Permits
  4. Forms & Resources

A septic permit is required in Washington County when:

  • Installing new septic tanks and/or soil treatment areas
  • All repair and modification of existing systems and components.
  • Changes in the facility served by the system may trigger a permit. Contact Public Health at 651-430-6655 or via email.

Complete a septic application using the online permitting portal. (Not compatible with Internet Explore)

Financial Assistance for Your Septic System


SSTS Records and Risk Assessment Project

In 2017, the county received a Clean Water Fund grant to conduct a records catalog and risk assessment. The CWF grant is for $100,000, with a 25% match, and it ends December 2019. The grant workplan includes: 1) collection and digitation of remaining paper records, including those from cities, 2) conducting a risk assessment countywide, using available data. The risk assessment will be a tool for county and local partners for prioritizing resources and assisting county and local officials with future planning.



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