Austin Water — Grease Trap Maintenance
Not legal advice. Last verified 2026-09-22 · confidence high. Confirm with the city before you set a contract.
Minimum interval: 90 days.
Accumulation rule: Clean more often if grease and solids are 50% or more of wetted height (bottom of trap to invert of outlet).
Records: keep required records about 3 years on site.
Hauler: City of Austin-permitted liquid waste hauler only.
Permit: Follow Austin Water FOG / trap registration rules for your site.
Enforcement: Fines and permit action are possible. Confirm current penalties with Austin Water / 311.
NFPA 96 frequencies (widely republished by fire departments): solid fuel monthly; high-volume quarterly; moderate semiannual; low-volume annual. Insurers and local fire inspectors can be stricter.