Hawaii FOG & Grease Trap Rules
Honolulu
Restaurants applying for a building permit involving a sewer connection must obtain an Industrial Wastewater Discharge Permit. Submit the application through the city process with drainage-fixture-unit data and grease-interceptor sizing calculations stamped by a Hawaii-licensed engineer. Interceptors must be IAPMO-certified and accessible for inspection and maintenance. Noncompliance can lead to fines, permit revocation, or service termination.
Sources
- HI1 — Honolulu wastewater permits
- HI2 — Industrial wastewater permit checklist
- HI3 — Honolulu grease-interceptor review policy
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