How often do grease traps have to be pumped in Indianapolis, IN?

Pump before grease + solids reach 25% of depth/capacity. Source: the official program source, checked 2026-10-17. Rules change; confirm with the local sewer authority.

States / Indiana / Indianapolis

Indianapolis, IN grease trap & interceptor requirements

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

Quick answer

How often to pump: Before grease + solids reach 25% of depth/capacity
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: “In addition, restaurants and other food preparation establishments are required to install grease interceptors (commonly known as grease traps).”
Sizing rule	Not stated in the sources we checked
Pumping / cleaning frequency	Pump before grease + solids reach 25% of depth/capacity. Source says “Monitoring outside grease traps regularly and cleaning them when FOG reaches 25% of the grease trap depth.”
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	Keep pumping and maintenance records (manifests/logs) available for inspection. Source says “Cleaning clogs caused by FOG out of private and public property leads to increased costs for maintaining the restaurant’s sewer line and for Citizens Energy Group, the operator of Sewer pipe clogged with grease the sewer system.”
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	permitquestions@indy.gov · (317) 327-8700

Sources

https://info.citizensenergygroup.com/hubfs/site/wastewater%20FOG%20documents/FOG_Restaurant.pdf · checked 2026-10-17
https://info.citizensenergygroup.com/safety/water/fats-oils-and-grease · checked 2026-10-17

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