MINNESOTA SEPTIC INFORMATION

Septic systems in Minnesota are referred to as Subsurface Sewage Treatment Systems or SSTS for short. Well-designed and properly installed septic systems are critical to treating wastewater and protecting Minnesota's surface and groundwater from contamination.

Designers must carefully evaluate soil conditions and proximity to groundwater, and create systems to function properly on specific sites. For example, designers may choose trench, bed, at-grade, or mound-style drainfields, depending on site conditions. SSTS designers and installers must use system components registered with the MPCA.

SEPTIC MAINTENANCE

Septic system owners are responsible for system maintenance. Properly maintaining a septic system will extend its life. Owners must employ state-licensed maintenance businesses to periodically pump out solids from septic tanks to properly maintain septic systems. If solids aren't removed, the material can accumulate and move into the drainfield and cause it to fail, or even backup into the residence or business. Minnesota rules require that the system be assessed at least once every three years, though local ordinances may be more stringent or have additional requirements.