Minnesota Grease Trap Regulations
FOG Compliance Overview
Minnesota follows the Uniform Plumbing Code (UPC) as its base plumbing code. The UPC requires grease interceptors for commercial kitchens and uses fixture unit calculations for sizing requirements. The state's regulatory authority is the Minnesota Pollution Control Agency (MPCA).
With approximately 10,937 food service establishments statewide, Minnesota has significant FOG compliance needs. Individual cities and municipalities may adopt additional local ordinances that go beyond the state plumbing code, including stricter pumping schedules, permit requirements, and enforcement penalties. Of the 5 cities we cover, 1 require a dedicated FOG permit. 1 city enforces the 25% rule for grease trap pumping.
Need a grease trap in Minnesota?
Our free calculator uses UPC code requirements to recommend the right size for your establishment.
Size My Grease TrapCity Regulations in Minnesota
| City | Pumping Frequency | Permit | 25% Rule |
|---|---|---|---|
| Elk River | See details | — | — |
| Minneapolis | Minimum every 90 days (quarterly). Some establishments ... | Required | Yes |
| Minneapolis-St. Paul | See details | — | — |
| Rochester | See details | — | — |
| St. Cloud | See details | — | — |
Frequently Asked Questions
What plumbing code does Minnesota follow for grease traps?
Minnesota follows the Uniform Plumbing Code (UPC). The UPC requires grease interceptors for commercial kitchens and uses fixture unit calculations for sizing. Individual cities may adopt stricter local ordinances.
How many food service establishments are in Minnesota?
Minnesota has approximately 10,937 food service establishments according to Census Bureau County Business Patterns data. We currently cover detailed FOG regulations for 5 cities in the state.
Do I need a grease trap permit in Minnesota?
Permit requirements vary by city. Of the 5 cities we cover in Minnesota, 1 require a dedicated FOG permit. Check your specific city's requirements below or contact your local wastewater authority.
What size grease trap do I need in Minnesota?
Grease trap sizing in Minnesota depends on your establishment's flow rate, number of fixtures, and local code requirements under the UPC. Use our free sizing calculator for a recommendation tailored to your setup.
Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.