States / Illinois / Naperville
Naperville, IL grease trap & interceptor requirements
Program run by City of Naperville (Public Works; Code Enforcement). Hand-checked against source Last checked 2026-10-17. Report an error / rule changed
Quick answer
- How often to pump: No grease-trap interval in city code; used-grease containers collected at least monthly
- Interceptor minimum / sizing: Illinois Plumbing Code: at least half of connected fixture capacity
- Permit / fees: not stated in the sources we checked
Need a pump-out? See 5 pumping companies serving Naperville ↓
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 | Naperville has no separate grease-trap ordinance in the code we checked; the statewide rule applies. Illinois Plumbing Code (77 Ill. Adm. Code 890.510): commercial kitchens must have a grease interceptor with all grease-carrying fixtures directed to it; food waste disposers may not discharge into it, and water-cooled interceptors are prohibited. ✓ checked against source |
|---|---|
| Sizing rule | Illinois Plumbing Code minimum: the interceptor must hold at least half the liquid capacity of the connected fixtures on the same floor (60% if it sits on a floor below); fixture capacity in gallons = length × width × depth in inches ÷ 231. ✓ checked against source |
| Pumping / cleaning frequency | Naperville Code 4-2-5.4: food establishments must keep food-generated grease out of wastewater and refuse, store it in a leakproof container, and have it collected monthly or more often (Public Works may require more). This covers grease containers; the code sets no grease-trap pump-out interval. ✓ checked against source |
| 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 | Naperville Code 4-2-6: $200 to $500 per offense for violations of the grease/refuse chapter; each day is a separate offense. ✓ checked against source |
| Program contact | Not stated in the sources we checked |
Sources
- https://library.municode.com/IL/Naperville/codes/Code_of_Ordinances?nodeId=TIT4HESA · checked 2026-10-17
- https://www.ilga.gov/commission/jcar/admincode/077/077008900E05100R.html · checked 2026-10-17
Grease trap pumping companies in Naperville, IL
5 companies that say on their own website they serve Naperville. Free listings are sorted A–Z. A listing is not an endorsement.
Before you book: ask for a full pump-out (not a skim) and a signed manifest for every service, and keep it on site for inspectors.
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Get featuredA & J Sewer Service
RegionalServes Elgin, Chicago, Fox Lake, McHenry, Round Lake, Evanston +16 more
All Around Pumping Service
Serves Elgin, Woodstock, Oswego, Fox Lake, Round Lake, McHenry +6 more
Aurora Tallow
Serves Aurora, Chicago, Joliet, Elgin, Evanston, Schaumburg +6 more
MAS Plumbing
Serves Hoffman Estates, Schaumburg, Chicago, Arlington Heights, Oak Brook, Elk Grove Village
Rocket Plumbing
Serves Chicago, Arlington Heights
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Size your interceptor
Use the grease interceptor sizing calculator (UPC, IPC and PDI methods), then confirm Naperville's own minimums above. Not sure how often to pump? Read how often to pump a grease trap.
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