Houston vs Austin
Side-by-side FOG compliance comparison betweenHouston, TX and Austin, TX.
| Requirement | Houston, TX | Austin, TX |
|---|---|---|
| Plumbing Code | IPC (Texas adopts IPC statewide; Houston amends locally) | UPC (Austin has historically used UPC with local amendments; Texas state code is IPC but Austin maintains UPC-based local requirements) |
| Min. Trap Size | Verify required type and sizing with Houston permitting and the applicable plumbing code before installation | Grease interceptors less than 100 gallons classified as grease traps (under-sink); gravity interceptors for FSEs sized per Austin Water Utility Design Criteria, minimum 750 gallons for full-service restaurants; sizing based on fixture count and flow rate |
| Pumping Frequency | Verify the current service interval with the City of Houston grease-trap inspection program | Every 90 days minimum; more frequently if grease and solids exceed 25% of wetted capacity |
| 25% Rule | — | Yes |
| Permit Required | Required | Required |
| Permit Fee | Current FOG Generator permit fee must be confirmed with the Houston Health Department | FOG permit/registration required through Austin Water; fees vary by facility size |
| Max Fine | Check the current Houston Code of Ordinances and enforcement notice for the applicable violation | $2,000 per violation per day under Austin City Code; additional penalties for causing SSOs |
| Inspections | Grease-trap inspections are handled by the City of Houston; confirm the applicable schedule directly | Austin Water Industrial Waste & Water Protection Division conducts inspections; annually for FSEs with compliance issues; routine inspections on risk-based schedule |
| Record Keeping | Yes | Yes |
| Authority | Houston Public Works and Engineering Department; Houston Health Department (grease transporter licensing) | Austin Water Utility, Industrial Waste & Water Protection Division |
| Establishments | 10,038 | 3,440 |
Key Differences
Even though both cities are in Texas, their FOG compliance requirements can differ significantly at the municipal level. Here are the most important differences restaurant operators should know:
- Houston follows the Uniform Plumbing Code (UPC), while Austin uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards.
- Pumping schedules differ: Houston requires "Verify the current service interval with the City of Houston grease-trap inspect", whereas Austin requires "Every 90 days minimum".
- Austin enforces the 25% rule (traps must be pumped when grease and solids reach 25% of capacity), while Houston does not explicitly enforce this standard.
- Fines differ: Houston penalties can reach Check the current Houston Code of Ordinances and enforcement notice for the applicable violation, compared to $2,000 per violation per day under Austin City Code; additional penalties for causing SSOs in Austin.
What This Means for Restaurant Operators
If you operate food service establishments in both cities, understanding these regulatory differences is critical for compliance. Permit requirements vary, so check with each city's wastewater authority before opening a new location. Different plumbing codes (IPC (Texas adopts IPC statewide; Houston amends locally) vs UPC (Austin has historically used UPC with local amendments; Texas state code is IPC but Austin maintains UPC-based local requirements)) mean trap sizing calculations may produce different results for the same kitchen setup. Always verify current requirements directly with your local wastewater authority or plumbing inspector.
Frequently Asked Questions
How do grease trap requirements compare between Houston and Austin?
Houston follows the Uniform Plumbing Code (UPC), while Austin uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards. Pumping schedules differ: Houston requires "Verify the current service interval with the City of Houston grease-trap inspect", whereas Austin requires "Every 90 days minimum".
Which city has stricter grease trap enforcement, Houston or Austin?
Enforcement varies: both cities have similar permit requirements. Houston fines: Check the current Houston Code of Ordinances and enforcement notice for the applicable violation. Austin fines: $2,000 per violation per day under Austin City Code; additional penalties for causing SSOs. Always verify with local authorities.
How do pumping schedules differ between Houston and Austin?
Houston: Verify the current service interval with the City of Houston grease-trap inspection program. Austin: Every 90 days minimum; more frequently if grease and solids exceed 25% of wetted capacity.
Last verified: — Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions.
Operating in Both Cities?
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