Regulations on Restaurant Grease: What You Need to Know

Many of Omni Containment Systems’ patented design solutions were created with the commercial kitchen exhaust cleaner in mind. However, Omni Containment Systems’ products have helped restaurants and food processing facilities around the world manage their grease containment. We often refer to the fire danger grease causes, but it is equally important to manage your fats and oils to prevent them from entering storm drains.

Would you know if your restaurant is causing environmental issues? Would you know if your kitchen exhaust cleaning company is causing environmental issues? Because of the advancements in technology, municipalities can coordinate their FOG (fats, oils, grease) handling regulatory compliance with web-based applications. It is important to know the environmental regulations that may apply to your business so you can better manage grease to avoid potential problems.

Are Fats, Oils, and Grease Regulated?

Nearly every city in the United States has a mandatory FOG control program with code enforcement directed toward food service establishments. It is with good reason; grease vented to kitchen exhaust hoods or grease sent down the drain can cause a destructive effect on our public sewer systems and clean water. When grease simply washes away down the drain, it doesn’t stop there. Eventually, it cools and turns solid that mixes with other solids, causing a fatberg , and municipalities are shouldering the burden of clearing these gross grease giants.

Regulate Your Kitchen Exhaust Fan Discharge

The good news is that with regular preventative maintenance, you can safeguard your business and our waterways. If you ignore your fans’ grease collection systems, grease will eventually drain onto your rooftop. Once it gets onto the rooftop, it will wash into the rain gutters and down into the storm sewer. Grease can also flow down the side of the building into a parking lot and storm sewer. Grease that enters the storm sewers can make its way to the nearest stream where it can discolor the water, kill fish, and plants, and cause an odor.

Regulate Disposal of Wash Water

For kitchen exhaust cleaning professionals and restaurants, washwater from cleaning equipment can also cause environmental problems if allowed to enter a storm drain. Care must be taken when washing your exhaust system, filters, and storage containers. In addition to grease, chemicals are added into the mix; this washwater combination can cause serious problems in streams, lakes, ponds, and other waters. That is why you need to partner with a reputable kitchen exhaust cleaning company. There should never be cleaning of filters in prohibited areas that allow grease to enter storm sewers or cause excess grease in grease traps.

This may seem overwhelming, but there are several resources available to help with compliance. A reputable kitchen exhaust cleaner, your local AHJ, and your local wastewater treatment plant can provide further information on your specific location. Omni Containment Systems’ products can also help manage your fats, oils, and grease. Here are our top products that help your facility keep fats, oils, and grease out of streams:

Rooftop Grease Containment

Omni Containment Systems designs rooftop grease containment systems that feature Off-the-Roof Protection. Each containment system defends your rooftop from grease and will not hide grease under layers of filters that sit on top of your roof. We carry five distinct rooftop grease containment systems. Each are designed with specific restaurant circumstances in mind, making sure that the proper solution is available and affordable for any grease containment need. All of our grease containment systems allow rainwater to pass through while absorbing all the grease output from the fan. This is achieved by using our hydrophobic filters.

Hydrophobic Absorbent Filters

All Omni products are designed and built with our environment in mind. We are proud of our hydrophobic filter technology that is utilized in the Grease Gutter , the Grease Gutter Sidekick , and the Grease Box. The Omni hydrophobic filter is made of biodegradable and recycled materials, meaning it will not sit in a landfill for the remainder of its life. It can also become 100% fully saturated with grease, leaving no extra room for water or an unsaturated filter. The filter meets EPA Storm Water Management requirements by absorbing all grease output and no water. Make sure to have your filters changed regularly to keep your rooftop safe and compliant.

Protect Your Parking Lot

Commercial restaurants can also cause environmental problems around grease dumpster areas. Professional cleaners also need to take special care when cleaning grease dumpster areas to deter fats, oils, and grease from entering the stormwater drain. These areas are susceptible to dangerous grease spills that are often laden with garbage and other caustic pollutants. Omni Containment has your FOG solution, the Lane Guard. If you do not have a Lane Guard, it can lead to grease being dispersed all over your pavement and, if ignored, these grease particles will enter the stormwater system. This is just one of the top four reasons to choose a Lane Guard.

When you invest in the Omni brand of solutions, you are not only safeguarding your investment from fire, but you also are protecting against stormwater pollution in our environment. Contact our team today to learn more about how we can protect your commercial kitchen.

Regulations on Restaurant Grease: What You Need to Know

Omni Containment Systems

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Grease Containment & the Environment: How Your Rooftop Impacts Local Water Systems

23 April 2026

When people think about environmental responsibility in commercial kitchens, they usually focus on what goes down the drain. But one of the most overlooked sources of pollution isn’t inside your facility, it’s on your roof. Rooftop grease runoff from kitchen exhaust systems can have a direct and damaging impact on local water systems, storm drains, and surrounding ecosystems. Without proper containment , that grease doesn’t just disappear, it travels. From Rooftop to Waterway: How Grease Becomes Pollution Commercial kitchen exhaust systems are designed to remove heat, smoke, and airborne grease particles. While hood filters capture some of that grease, a significant amount still passes through the system and accumulates in ductwork and exhaust fans. Over time, this buildup begins to drip onto the roof, spread across roofing materials, and get carried away by rainwater. Once rain hits your roof, it acts as a transport system, moving grease into gutters, downspouts, and ultimately into storm drains. Unlike sanitary sewer systems, stormwater runoff is often discharged directly into local waterways without treatment. As a result, grease from your rooftop can end up in rivers, lakes, municipal stormwater systems, and surrounding soil. Why It Matters: Environmental and Operational Risks The impact of rooftop grease runoff extends beyond a messy roof; it creates real environmental and operational concerns. Grease contains fats, oils, and contaminants that can degrade water quality. When introduced into natural water systems, it can harm aquatic life, disrupt oxygen levels, and contribute to long-term ecosystem damage. At the same time, regulatory compliance is at risk. Local and federal requirements , often tied to EPA stormwater guidelines, mandate that facilities prevent pollutants from entering storm drains. Uncontrolled grease runoff can lead to fines, failed inspections, and increased scrutiny. There are also direct impacts on your facility. Grease buildup can deteriorate roofing materials, void warranties, and create slip hazards for maintenance personnel. What begins as a rooftop issue can quickly escalate into a costly problem. The Role of Grease Containment Systems A properly designed grease containment system serves as a critical barrier between your exhaust system and the environment. Instead of allowing grease to spread across the roof, these systems capture it at the source, right at the exhaust fan's discharge. Filtration media absorbs and holds the grease, preventing runoff during rain events and reducing the risk of environmental contamination. More advanced systems incorporate multi-stage filtration, improving efficiency while reducing maintenance frequency. The result is a cleaner, safer, and more controlled rooftop environment. Sustainability Starts at the Source Environmental responsibility isn’t just about compliance; it’s about prevention . By addressing grease at the rooftop level, facilities can reduce their environmental footprint, support local water quality initiatives, and align with broader sustainability. For multi-site operators and property managers, this becomes even more important. A single poorly managed rooftop can impact not just one building, but an entire property, or even the surrounding community. Best Practices for Preventing Rooftop Grease Runoff Preventing grease runoff doesn’t require a complete overhaul, but it does require consistency and the right approach . Start by installing a high-quality grease containment system designed for durability and ease of maintenance. From there, regular maintenance is key. Filtration media should be inspected and replaced as needed to ensure the system continues performing effectively. Routine rooftop inspections can help identify buildup early, before it becomes a larger issue. Finally, working with experienced professionals ensures proper system selection and installation, setting up the foundation for long-term performance. A Small Change with a Big Impact Grease containment may seem like a small part of your operation, but its impact extends far beyond your rooftop. By taking proactive steps to manage grease runoff, you’re not only protecting your building, but you’re also helping protect your local environment and water systems. Looking to improve your rooftop grease management? Omni Containment Systems provides innovative solutions designed to keep grease where it belongs, off your roof and out of waterways.