Current SSTS Rules, Laws, Statutes, Regulations and Ordinances
For earlier versions of the state SSTS rules, please visit our Rules and Statutes History section.
SSTS Rules – Effective March 14, 2011 to Present
- Chapter 7080: Individual systems with flows up to 5,000 gallons per day (gpd)

- Chapter 7081: Mid-size systems with flows from 5,001 to 10,000 gpd:

- Chapter 7082: Administrative Requirements of Local SSTS Programs

- Chapter 7083: Certification/Licensing, Product Registration and Advisory Committee

Statement of Need and Reasonableness (SONAR) (wq-rule3-11c)
Dual Notice of Intent to Adopt Rules (wq-rule3-11b)
Public Notice - Request for Comments 
Public Notice – Noticed changes to Chapters 7080 to 7083 
Public Notice Comments Received, MPCA Response to Comments and Exhibits 
Administrative Law Judge (ALJ) Report 
Chief ALJ Report (wq-rule3-11k)
Notice of Adoption 
Compiled 7080-7083 SSTS Rule Changes (wq-rule3-11n)- Major changes from 2008 rules:
- Collection systems considered as SSTS
- Modified tank access requirements
- Setback clarification
- No soil pit required for ISTS
- Coarse sand = treatment, rock fragments do not
- Rapidly permeable soils are Type I system
- Simplified and less conservative soil loading charts
- Type III system = only soil problems
- Existing system compliance inspection must check all components
- Apprentices must do observations
- New Type IV treatment levels (A2 and B2)
Minnesota Statutes Governing SSTS Rules
- Local ordinance requirements and alternative local standards
- MPCA rule requirements
- Enforcement
- Inspections, complying criteria, disclosure at property transfer
- Warrantied systems
- The $25 septic tank fee
- Licensing requirements for ISTS professionals
- MPCA licensing enforcement
Federal Requirements
Local Regulations
Local government units (LGUs) can have requirements which are stricter than the minimum state requirements. Always check with your LGU first for SSTS requirements:

