Joliet, IL grease trap & interceptor requirements
Program run by City of Joliet Department of Public Utilities. Hand-checked against source Last checked 2026-10-17. Report an error / rule changed
Quick answer
- How often to pump: At least every 90 days; weekly for small traps
- Interceptor minimum / sizing: not stated in the sources we checked
- Permit / fees: Permit required
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 | Hydro-mechanical grease interceptors are required in all new food service establishments. âś“ checked against source |
|---|---|
| Sizing rule | Not stated in the sources we checked |
| Pumping / cleaning frequency | At a minimum, grease interceptors must be cleaned every 90 days and grease traps once per week. âś“ checked against source |
| Permit required? | All food service establishments must obtain a permit. âś“ checked against source |
| 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 | Not stated in the sources we checked |
Sources
- https://www.joliet.gov/government/departments/public-utilities/sanitary-system/fog-fats-oils-grease · checked 2026-10-17
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