Seattle vs Fort Worth
Side-by-side FOG compliance comparison betweenSeattle, WA and Fort Worth, TX.
| Requirement | Seattle, WA | Fort Worth, TX |
|---|---|---|
| Plumbing Code | UPC (Washington State uses Uniform Plumbing Code) | IPC (Texas adopted IPC with local amendments) |
| Min. Trap Size | 1,000 gallons minimum for gravity grease interceptors; hydromechanical interceptors per UPC sizing (typically 20-50 GPM) | 1,000 gallons minimum for exterior grease interceptors; hydromechanical grease interceptors (HGIs) must be minimum 50 GPM rated per UPC/manufacturer specs |
| Pumping Frequency | At minimum every 90 days for the first year; frequency may be adjusted based on monitoring records | At minimum every 90 days; must be pumped when FOG and solids accumulate to 25% of wetted depth |
| 25% Rule | Yes | Yes |
| Permit Required | Required | Required |
| Permit Fee | No separate FOG permit fee; covered under King County Industrial Waste discharge program | Included with Industrial Waste Discharge permit; no separate FOG fee typically published |
| Max Fine | $10,000 per day per violation under Seattle Municipal Code; King County may impose additional penalties | $2,000 per violation per day (Class C misdemeanor under city code); up to $10,000/day for industrial pretreatment violations |
| Inspections | Annually; King County WTD inspects FSEs on a risk-based schedule | At least annually; high-risk facilities may be inspected quarterly |
| Record Keeping | Yes | Yes |
| Authority | King County Wastewater Treatment Division (WTD) Industrial Waste Program; Seattle Public Utilities (SPU) for local sewer connections | Fort Worth Water Department, Environmental Division / Pretreatment Section |
| Establishments | 6,372 | 4,506 |
Key Differences
As cities in different states, Seattle (WA) and Fort Worth (TX) operate under distinct regulatory frameworks. Here are the most important differences restaurant operators should know:
- Seattle follows the Uniform Plumbing Code (UPC), while Fort Worth uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards.
- Pumping schedules differ: Seattle requires "At minimum every 90 days for the first year", whereas Fort Worth requires "At minimum every 90 days".
- Both cities enforce the 25% rule, requiring grease traps to be pumped when grease and solids reach 25% of the trap's capacity.
- Fines differ: Seattle penalties can reach $10,000 per day per violation under Seattle Municipal Code; King County may impose additional penalties, compared to $2,000 per violation per day (Class C misdemeanor under city code); up to $10,000/day for industrial pretreatment violations in Fort Worth.
What This Means for Restaurant Operators
If you operate food service establishments in either city, 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 (UPC (Washington State uses Uniform Plumbing Code) vs IPC (Texas adopted IPC with local amendments)) 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 Seattle and Fort Worth?
Seattle follows the Uniform Plumbing Code (UPC), while Fort Worth uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards. Pumping schedules differ: Seattle requires "At minimum every 90 days for the first year", whereas Fort Worth requires "At minimum every 90 days".
Which city has stricter grease trap enforcement, Seattle or Fort Worth?
Enforcement varies: both cities have similar permit requirements. Seattle fines: $10,000 per day per violation under Seattle Municipal Code; King County may impose additional penalties. Fort Worth fines: $2,000 per violation per day (Class C misdemeanor under city code); up to $10,000/day for industrial pretreatment violations. Always verify with local authorities.
How do pumping schedules differ between Seattle and Fort Worth?
Seattle: At minimum every 90 days for the first year; frequency may be adjusted based on monitoring records. Fort Worth: At minimum every 90 days; must be pumped when FOG and solids accumulate to 25% of wetted depth.
Last verified: — Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions.
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