Grease Trap Requirements
Bismarck, ND
FOG compliance regulations for food service establishments in Bismarck, North Dakota.
Pumping Requirements
Permits & Enforcement
Complete FOG Regulations
| Pumping Frequency | Twice per month or when 25% full |
|---|---|
| 25% Rule | Yes — trap must be pumped when grease and solids reach 25% of capacity |
| Permit Required | Yes |
| Record Keeping | Required — maintain pumping logs and manifests on-site |
| Plumbing Code | Uniform Plumbing Code (UPC) |
| Ordinance Ref. | FOG Control Ordinance Chapter 11.1-04; Industrial Pretreatment Ordinance Title 11.2 (updated 2025) |
| Authority | City of Bismarck Industrial Pretreatment Program / Public Works |
Additional Notes
NOTE: Bismarck is actually the capital of North Dakota (ND), not South Dakota (SD). Grease traps must be cleaned twice a month or when 25% full (updated from previous requirement of weekly or 50% full). Industrial Pretreatment Ordinance updated February 2025 to align with EPA Clean Water Act requirements. Fee thresholds moved to city's fees and charges schedule. Contact: Paul Olson, Industrial Pretreatment Manager, 701-355-1700 ext. 4.
Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.
Contact Information
(701) 355-1700 or bgefroh@bismarcknd.gov
Official Sources
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