SSTS and MSTS technical and compliance criteria

SSTS and Midsize SSTS (MSTS) are governed by a combination of state regulations, local government unit (LGU) ordinances, and food/beverage/lodging establishment requirements.

The technical criteria and inspection requirements for SSTS are governed by Minn. Rules Chapter 7080; MSTS by Minn. Rules Chapter 7081. How both apply at the local level is detailed in each LGUs ordinance; therefore it’s important you have the most recent copy of the local ordinance.

This page contains links to current Minn. Rules Chapter 7080 and Chapter 7081 regulations, plus links to fact sheets and forms to assist in interpreting and understanding the technical criteria.

SSTS technical criteria (7080.1550 to 7080.2500)

Links under this heading take you to the Minnesota Revisors of Statutes website.

SSTS compliance criteria and inspections

Links under this heading take you to the Minnesota Revisors of Statutes website.

MSTS technical criteria (7081.011 to 7081.0300)

Links under this heading take you to the Minnesota Revisor of Statutes website.

MSTS compliance criteria (7081.0040 to 7081.0080)

Links under this heading take you to the Minnesota Revisor of Statutes website.

Advanced design guidance

All sizes of Type IV SSTS (systems with advanced treatment), and all SSTS with a flow of 2,501 gallons per day to 10,000 gallons per day need to be designed by an Advanced Design business with some components needing to be designed by AELSLAGID professionals. Below are Prescriptive Standards and Design Guidance that Advanced Designers must follow in designing the above mentioned systems.

Related fact sheets and links

General

Design

Compliance inspections

Abandonment

Maintenance