Madison, WI grease trap & interceptor requirements

Quoted from official source Last checked 2026-10-17. Report an error / rule changed

Quick answer

How often to pump: not stated in the sources we checked
Interceptor minimum / sizing: not stated in the sources we checked
Permit / fees: not stated in the sources we checked

From the official source(s) below, last checked 2026-10-17. Rules change; verify with your city.

Rules change; verify with your city. Summaries are plain-English restatements of the official source linked below; “Source says” shows the exact wording. Blank rows mean the sources we checked did not state that rule, not that there is no rule.

Required trap / interceptor type	Source says: “Facilities with grease traps/interceptors are required to submit proof of maintenance on an annual basis.”
Sizing rule	Not stated in the sources we checked
Pumping / cleaning frequency	Not stated in the sources we checked
Permit required?	Not stated in the sources we checked
Permit & program fees	Not stated in the sources we checked
Inspections	Not stated in the sources we checked
Record keeping	Not stated in the sources we checked
Pumper / hauler approval	Not stated in the sources we checked
Reporting portal	Not stated in the sources we checked
Fines & penalties	Not stated in the sources we checked
Program contact	streets@cityofmadison.com · webadmin@cityofmadison.com · 608-266-4751

Sources

https://www.cityofmadison.com/engineering/sanitary-sewer/education/fats-oils-grease · checked 2026-10-17

Find a grease trap pumper in Madison

Compare pumpers that service Madison. Directory coming soon.

Get notified

Pump grease traps in Madison?

Put your company in front of restaurants checking these rules. Featured listing (paid) – coming soon.

List your company

Size your interceptor

Use the grease interceptor sizing calculator (UPC, IPC and PDI methods), then confirm Madison's own minimums above. Not sure how often to pump? Read how often to pump a grease trap.