Grease Trap Regulations in New Jersey

Overview

New Jersey FOG rules come from a mix of state, county, and city authorities. They apply to any retail food shop or food processor. Food service kitchens fall under the NJ Department of Environmental Protection (NJDEP) and local sewer utilities. Newark's Passaic Valley Sewerage Commission serves over 1.6 million residents in 48 municipalities across Bergen, Essex, Hudson, Union, and Passaic Counties. The Bergen County Utilities Authority and the Middlesex County Utilities Authority run their own active FOG programs. New Jersey's dense urban restaurant scene means tough enforcement. Most operators face interceptor installation, quarterly pumping, certified hauler manifests, and three-year record retention.

Governing Authorities

Restaurants, cafeterias, institutional kitchens, and any kitchen that discharges large amounts of grease must use a grease trap and a high-strength wastewater pretreatment unit. This rule comes from the NJ Department of Environmental Protection (NJDEP) under New Jersey Administrative Code (N.J.A.C.) 7:9A-8.1. Local enforcement runs through municipal plumbing officials, health departments, and regional sewer authorities.

Major enforcement bodies include:

• New Jersey Department of Environmental Protection (NJDEP): State oversight of waste manifests and transporter licensing.
• Passaic Valley Sewerage Commission (PVSC): Serves 48 municipalities across Bergen, Essex, Hudson, Union, and Passaic Counties with over 1.6 million residents.
• Bergen County Utilities Authority (BCUA): Handles wastewater treatment for 47 Bergen County municipalities.
• Middlesex County Utilities Authority (MCUA): Serves over 800,000 residents and businesses in central New Jersey.
• Local health departments: Run code enforcement and FOG licensing.

Key Requirements

Interceptor Sizing and Installation

A grease trap serving a restaurant, cafeteria, or institutional kitchen must hold at least 750 gallons. Install grease traps on a separate line near the wastewater source, where the water is still hot. Hot water helps separation. Interceptors must be designed by a licensed professional engineer, comply with the New Jersey plumbing sub-code, and be installed by a licensed plumber.

Cleaning Frequency

Cleaning intervals vary by city. Key standards include:

• Clean grease removal devices when captured FOG and settled solids reach more than 25% of capacity.
• Many cities, such as Clementon, require all grease traps to be cleaned at least every six months.
• Inspectors check cleaning records. The minimum is every six months in many boroughs.
• Some cities require pumping when liquid depth fills to 25%, and no longer than every 30 days.
• Most kitchens clean every one to three months. High-volume restaurants and heavy fryers may need monthly service.

Waste Manifests and Record-Keeping

Every load of grease trap waste or used cooking oil that leaves your kitchen must carry an NJDEP manifest. The manifest creates a legal chain of custody. Health inspectors ask for it first during audits. Only firms with an active NJDEP "Vehicle/Transporter ID" may haul grease. Verify haulers in the NJDEP DataMiner database.

NJDEP requires generators and transporters to keep each manifest for at least three years from the pickup date. The Passaic Valley Sewerage Commission extends that to five years in its service area. Operators must also keep a maintenance log with cleaning dates, events, and staff training. Submit the log with the annual FOG license application.

Best Management Practices

• Do not use a garbage grinder when grease removal equipment is required.
• Cities like Elizabeth require every food shop to hold a FOG control license from the city health department.
• Document best practices in writing, including how you dispose of food waste.
• Report any prohibited discharge within 7 days.

Fines and Enforcement

New Jersey cities and sewer authorities hit FOG violations hard:

• NJ Water Pollution Control Act §58:10A-10 allows civil penalties up to $50,000 per violation per day for missing or fraudulent manifests.
• Local sewer authorities add their own fines. Some towns charge $1,000 per occurrence.
• Toms River charges $500 for a second violation and $1,000 for a third.
• Clementon violations carry fines up to $2,000, jail time up to 90 days, and community service up to 90 days.
• Repeat offenses can trigger facility shutdowns or criminal charges.
• Owners can be liable to the city for any loss, damage, or expense the city covers because of a violation. That can run to thousands of dollars.

Non-compliance can mean steep fines or operating suspension. City inspectors run routine checks. Grease trap inspections happen every year, or more often if needed. Initial inspection fees can run $100 in some cities.

Major City FOG Programs

Newark

Newark's FOG program runs through the Passaic Valley Sewerage Commission (PVSC), founded in 1902. The PVSC opened the Newark Bay Treatment Plant in 1924. Today it is one of the largest wastewater plants in the United States. The plant treats an average of 330 million gallons per day. Newark food service kitchens must meet strict pretreatment standards and keep detailed grease removal records.

Jersey City

Jersey City sets specific rules for grease trap maintenance. Restaurants and commercial kitchens must clean traps regularly under the city's plumbing and health codes. Jersey City is served by the Passaic Valley Sewerage Commission. Several agencies can fine restaurants for poor grease control. These include the Department of Environmental Protection (DEP), Department of Buildings (DOB), and local health departments. The DEP requires that grease interceptors be sized and installed under the Plumbing Code.

Paterson

Paterson is also served by the Passaic Valley Sewerage Commission. The Main Interceptor Sewer runs through Paterson, Clifton, and Passaic in Passaic County. Paterson restaurants face the same strict rules as other PVSC-area communities. That includes proper sizing, regular maintenance, and full manifest records for every waste pickup.

Elizabeth

An owner of a facility with FOGs or grease-generating activity must install a grease interceptor. The unit must separate and remove FOGs before discharge to the public sewer. Every food shop must hold a FOG control license from the city health department. NJ FOG control licenses are issued after certification and payment of fees. They expire on the same date as the food shop license each year. Elizabeth's program requires detailed records and best management practices.

Frequently Asked Questions

How often must I have my grease trap cleaned in New Jersey?

Cleaning frequency depends on your city and trap usage. Clean grease removal devices when captured FOG and settled solids reach more than 25% of capacity. Many cities require cleaning every six months. High-volume kitchens may need monthly service. Some places require cleaning at least every 90 days, no matter the fill level. Check with your local sewer authority for the exact rule.

What documentation must I keep for grease trap maintenance?

Every load of grease trap waste must travel with an NJDEP manifest. The manifest creates a legal chain of custody. Health inspectors ask for it first during audits. NJDEP requires generators and transporters to keep each manifest for at least three years from the pickup date. Some authorities, like PVSC, require five years. Keep a maintenance log too. Record cleaning dates, volumes pumped, and the licensed hauler's NJDEP transporter number. Maintenance logs and cleaning or disposal invoices must be ready for inspectors at the time of inspection.

What are the penalties for improper grease trap maintenance?

Penalties vary, but they can be severe. NJ Water Pollution Control Act §58:10A-10 allows civil penalties up to $50,000 per violation per day for missing or fraudulent manifests. Local sewer authorities add their own fines. Some towns charge $1,000 per occurrence. Other cities run from $500 for a second violation to $1,000 for a third. Repeat offenses can trigger facility shutdowns or criminal charges. You may also be on the hook for all costs the city or sewer authority spends to clear blocked sewer lines caused by your discharge.

Find Grease Trap Service in New Jersey

We list 39 certified grease trap service providers across New Jersey. They can help you stay compliant with state and local FOG rules. These pros know NJDEP manifest rules, local cleaning frequencies, and proper waste disposal. They handle interceptor sizing, installation, regular maintenance, and emergency service. Their work helps your kitchen run smoothly and avoid costly violations. Visit our New Jersey grease trap service directory to find providers in your area today.