San Diego Restaurant Grease Trap Requirements & Compliance Guide

San Diego Municipal Code Grease Trap Requirements

The City of San Diego requires all food service establishments to install and maintain grease interceptors (traps) sized according to flow rate calculations in the San Diego Municipal Code Section 67.0301. Restaurants must pump grease traps at least every 30 days or when contents reach 25% capacity—whichever comes first. The San Diego Water Department enforces these rules and may conduct inspections during routine sanitation reviews. Maintenance records, including pump-out dates and waste disposal documentation, must be kept on-site for inspection by city officials. Failure to maintain compliance can result in fines up to $500 per day and potential closure orders.

California State Plumbing Code & Environmental Standards

California's Title 24 Building Standards Code and the California Plumbing Code establish minimum grease interceptor sizing, installation depth, and material specifications that supersede some local rules when more stringent. The California Department of Water Resources emphasizes that grease interceptors must prevent FOG (fats, oils, and grease) from entering municipal sewer systems, protecting treatment infrastructure statewide. Restaurants must use certified waste haulers who properly dispose of collected grease—California law prohibits dumping or improper disposal. These state requirements apply uniformly across all California jurisdictions but San Diego often implements additional local thresholds. Documentation of proper disposal must be maintained and provided to the city upon request.

San Diego vs. Federal Standards & Reporting Obligations

Federal food safety standards (FDA and USDA) do not directly regulate grease trap maintenance—these fall under local wastewater and environmental authority. However, the EPA's National Pretreatment Standards indirectly apply through San Diego's Industrial Wastewater Pretreatment Program, which may audit high-volume food service facilities. San Diego's requirements are typically stricter than federal minimums because of the region's water scarcity and coastal water quality concerns. Restaurants should understand that compliance with San Diego Municipal Code satisfies federal expectations, but not vice versa. Regular inspections by the Environmental Services Division occur during health and safety reviews; grease-related violations are documented separately from foodborne illness risks.

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