What size grease interceptor is required in Springfield?

Minimum 35 gal / 500 gal, per the official source. Your plumbing official can require more.

Do restaurants in Springfield need a grease trap permit?

Building permit required to install; sampling fees $90 (interceptor), $90 (discharge), FOG analysis $50, per the official source checked 2026-10-17.

States / Illinois / Springfield

Springfield, IL grease trap & interceptor requirements

Q: How often do grease traps have to be pumped in Springfield, IL?

Pump every 30 or 90 days (depends on device type). Source: Sangamon County Water Reclamation District (FOG Ordinance No. 2013-4), checked 2026-10-17. Rules change; confirm with the local sewer authority.

Program run by Sangamon County Water Reclamation District (FOG Ordinance No. 2013-4). Hand-checked against source Last checked 2026-10-17. Report an error / rule changed

Quick answer

How often to pump: Every 30 or 90 days (depends on device type)
Interceptor minimum / sizing: Minimum 35 gal / 500 gal
Permit / fees: Building permit required to install; sampling fees $90 (interceptor), $90 (discharge), FOG analysis $50

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: “For all new building construction, a minimum 500-gallon grease interceptor is required.”
Sizing rule	Grease traps: minimum 35 gallons; grease interceptors: minimum 500 gallons (variance possible for traps). New building construction requires a minimum 500-gallon interceptor. ✓ checked against source
Pumping / cleaning frequency	Grease traps: cleaning intervals may not exceed 30 days (unless a variance is granted). Grease interceptors: cleaning intervals may not exceed 90 days. ✓ checked against source
Permit required?	A permit is required (see source wording). Source says “A licensed Illinois Plumbing Contractor shall install all Grease Interceptors and Grease Traps in compliance with the latest edition of the Illinois Plumbing Code and obtain a building permit from any relevant State, municipal, or other governmental authorities prior to installation.”
Permit & program fees	Ordinance addendum lists an interceptor sampling fee of $90, discharge sampling fee of $90 and FOG analysis fee of $50. ✓ checked against source
Inspections	Not stated in the sources we checked
Record keeping	Keep pumping and maintenance records (manifests/logs) available for inspection. Source says “A Grease Trap Cleaning Log shall be maintained that summarizes all cleaning and maintenance activities.”
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.scwrd.org/pdf/ordinance/scwrd%20fog%20ordinance%2002-26-13%20-%20revised%2010-25-22.pdf · checked 2026-10-17

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Size your interceptor

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

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