Oswego, IL grease trap & interceptor requirements
Quoted from official 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: not stated in the sources we checked
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: “Grease traps and interceptors shall be installed by a licensed plumber.” |
|---|---|
| Sizing rule | Source says: “The total number of fixture units multiplied by one hundred and twentyfive (125) gallons shall determine the minimum total liquid capacity of the interceptor.” |
| Pumping / cleaning frequency | Pump at least every 90 days; weekly for small traps. Source says“At a minimum, interceptor-style GRS shall be cleaned at least once every 90 days and trap-style GRS cleaned at least once per week.” |
| Permit required? | Not stated in the sources we checked |
| Permit & program fees | Not stated in the sources we checked |
| Inspections | Grease traps/interceptors are subject to inspection. Source says“Completed grease traps and interceptors shall be subject to inspection by the Control Authority Pretreatment Inspector prior to connection to the sanitary sewer.” |
| Record keeping | Keep pumping and maintenance records (manifests/logs) available for inspection. Source says“Manifests must be on site and available for Fox Metro to review during the FSE or NFD grease inspection.” |
| Pumper / hauler approval | Not stated in the sources we checked |
| Reporting portal | Not stated in the sources we checked |
| Fines & penalties | Penalty amounts in the source: $1000. Source says“Falsification of maintenance records: $1000 6.3 Appeal of Grease Policy Any Food Service Establishment (FSE) may appeal a fine that has been assessed for failure to comply with the Grease Control Policy.” |
| Program contact | Not stated in the sources we checked |
Sources
- https://www.foxmetro.org/wp-content/uploads/2013/09/Grease-Program-Ordinance-No.-784.pdf · checked 2026-10-17
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