Seattle vs Las Vegas
Side-by-side FOG compliance comparison between Seattle, WA and Las Vegas, NV.
| Requirement | Seattle, WA | Las Vegas, NV |
|---|---|---|
| Plumbing Code | UPC (Washington State uses Uniform Plumbing Code) | UPC |
| Min. Trap Size | 1,000 gallons minimum for gravity grease interceptors; hydromechanical interceptors per UPC sizing (typically 20-50 GPM) | 750 gallons minimum for gravity grease interceptors; hydromechanical interceptors sized per fixture count and flow rate per UPC tables (minimum 20 GPM) |
| Pumping Frequency | At minimum every 90 days for the first year; frequency may be adjusted based on monitoring records | Every 90 days minimum; more frequently if grease and solids exceed 25% of interceptor capacity |
| 25% Rule | Yes | Yes |
| Permit Required | Required | Required |
| Permit Fee | No separate FOG permit fee; covered under King County Industrial Waste discharge program | Health permit for food establishments includes FOG compliance; separate grease hauler permits also required |
| Max Fine | $10,000 per day per violation under Seattle Municipal Code; King County may impose additional penalties | $1,000 per violation per day under Clark County code; escalating penalties for repeat violations |
| Inspections | Annually; King County WTD inspects FSEs on a risk-based schedule | Annual inspections as part of health permit and sewer discharge compliance |
| Record Keeping | Yes | Yes |
| Authority | King County Wastewater Treatment Division (WTD) Industrial Waste Program; Seattle Public Utilities (SPU) for local sewer connections | City of Las Vegas Public Works Department and Clark County Water Reclamation District; Southern Nevada Health District (SNHD) for food establishment inspections |
| Establishments | 6,372 | 5,457 |
Key Differences
As cities in different states, Seattle (WA) and Las Vegas (NV) operate under distinct regulatory frameworks. Here are the most important differences restaurant operators should know:
- Seattle follows the Uniform Plumbing Code (UPC), while Las Vegas 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 Las Vegas requires "Every 90 days minimum".
- 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 $1,000 per violation per day under Clark County code; escalating penalties for repeat violations in Las Vegas.
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 UPC) 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 Las Vegas?
Seattle follows the Uniform Plumbing Code (UPC), while Las Vegas 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 Las Vegas requires "Every 90 days minimum".
Which city has stricter grease trap enforcement, Seattle or Las Vegas?
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. Las Vegas fines: $1,000 per violation per day under Clark County code; escalating penalties for repeat violations. Always verify with local authorities.
How do pumping schedules differ between Seattle and Las Vegas?
Seattle: At minimum every 90 days for the first year; frequency may be adjusted based on monitoring records. Las Vegas: Every 90 days minimum; more frequently if grease and solids exceed 25% of interceptor capacity.
Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.
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