compliance
NYC Grease Trap & Interceptor Requirements for Restaurants
New York City's Department of Environmental Protection (DEP) mandates grease trap installation and maintenance for food service establishments to prevent sewer blockages and environmental damage. Failure to comply results in violations, costly fines, and operational shutdowns. Understanding NYC's specific requirements is essential for every restaurant owner and manager.
NYC DEP Grease Trap Installation & Size Requirements
The NYC Department of Environmental Protection requires grease interceptors for all food service facilities that generate grease waste, including restaurants, cafeterias, and catering operations. Interceptor size must be calculated based on peak wastewater flow rates and is typically 1.5 times the hourly flow rate in gallons. Facilities with daily food prep volumes exceeding minimal thresholds must install compliant units before opening; existing non-compliant systems must be upgraded during renovations or by order of the DEP. All installations must be performed by licensed plumbers and inspected by the city before operation.
Maintenance Schedule & Pumping Requirements
NYC regulations require regular grease trap pumping and maintenance to prevent overflow and sewer backups. Most food service establishments must pump traps every 3–6 months depending on usage volume, with high-volume restaurants potentially needing more frequent service. The DEP tracks maintenance records, and facilities must retain documentation of all pump-outs and cleaning services for inspection. Neglected traps accumulate FOG (fats, oils, greases) that harden and create blockages in city sewers, triggering DEP enforcement actions and possible fines up to $1,000+ per violation.
DEP Violations, Inspections & Compliance Strategy
The DEP conducts routine and complaint-based inspections to verify grease trap compliance, looking for improper sizing, lack of maintenance records, and illegal discharge practices. Violations include operating without a trap, using an undersized unit, or failing to maintain pumping logs. Restaurants can avoid enforcement by establishing a documented maintenance contract with a licensed waste hauler, keeping pump receipts on-site, and training staff on proper grease disposal (never pouring FOG down drains). Panko Alerts monitors NYC Health Department and DEP notices in real-time, helping operators stay ahead of regulatory changes and peer violations in their area.
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