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Commercial Liquid Waste Management

Grease Interceptor Services

High-capacity pumping and maintenance for large in-ground grease interceptors. Built for chain restaurants, hospitals, universities, and any kitchen moving serious volume — fully permitted, fully documented.

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Grease Interceptor

The Basics

Large Outdoor Interceptors for High-Volume Kitchens

A grease interceptor is not the same as the small grease trap under a sink. Interceptors are large, in-ground tanks — typically 500 to 10,000+ gallons — installed outside to handle the fats, oils, and grease (FOG) produced by high-volume commercial kitchens. Chain restaurants, hospital cafeterias, university dining halls, hotels, stadiums, and food courts all rely on interceptors to protect municipal sewer systems and pass health inspections. Southwaste specializes in these big systems. Our high-capacity vacuum trucks and experienced operators pump, clean, inspect, and document large interceptors on schedule, keeping you ahead of the 25% FOG accumulation threshold and fully compliant across all six states we serve. If you have been managing a small under-sink trap and are moving to a larger operation — or you already run a facility with an in-ground interceptor — this is the service built for your volume.

The Importance

Why Large Interceptor Maintenance Matters

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Built for Big Tanks

Undersized equipment can not handle a 5,000-gallon interceptor. Our high-capacity vacuum trucks pump large interceptors completely in a single visit — no half-done jobs or return trips.
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Avoid Sewer Surcharges

A bypassing interceptor sends grease straight into the municipal sewer — triggering fines, surcharges, and even legal action from your local authority. Routine pumping prevents it.
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Documented for Inspectors

High-volume facilities get inspected more often. We provide full digital manifests and service reports formatted for your health department and sewer district.
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Predictable, Not Reactive

Large interceptors are expensive to fix and catastrophic to ignore. A scheduled plan spreads cost predictably and keeps your kitchen open without emergency shutdowns.

Our Process

How Our Grease Interceptor Service Works

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Size & Schedule Assessment

01

We evaluate your interceptor capacity, kitchen output, and local code requirements to build the right pumping frequency — monthly, quarterly, or semi-annual for the largest tanks.
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Pump & Clean Completely

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Our high-capacity trucks remove accumulated FOG and solids down to the tank floor, then clean accessible interior surfaces to restore full working volume.
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Inspect & Report

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We inspect baffles, inlet/outlet pipes, and structural condition — flagging any repair needs — and deliver a digital service report with a full waste manifest.
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Monitor & Remind

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We track your accumulation rate and send automatic reminders before your next service window, so you never cross the 25% threshold between visits.

what you get

Every Interceptor Service Includes

  • Complete pumping of large in-ground interceptors (500–10,000+ gallons)

  • High-capacity vacuum trucks sized for big tanks

  • Interior cleaning of accessible baffles and surfaces

  • Visual inspection of baffles, inlet/outlet, and structural condition

  • Digital waste manifest and compliance-ready service report

  • FOG and solids level measurement at every visit

  • Automatic scheduling and reminder system

  • 24/7 emergency response for backups and overflows

Schedule Your Grease Interceptor Service

A large interceptor is too expensive to neglect. Set up a reliable pumping schedule to keep your high-volume kitchen compliant, open, and odor-free.

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Who We Work With

Who Needs Grease Interceptor Services

Any facility generating high volumes of kitchen FOG relies on an in-ground interceptor. These are the operations we serve most.

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Chain Restaurants

Multi-location, high-volume kitchens with large interceptors that demand consistent, documented pumping across every site.
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Universities & Colleges

Dining halls feeding thousands daily produce enough FOG to overwhelm small equipment — large interceptors are required.
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Hotels & Resorts

Banquet kitchens and room-service operations with big interceptors that need scheduled, after-hours-friendly service.
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Hospitals & Healthcare

Cafeterias operating around the clock. Our reliability matches the stakes of healthcare food service.

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Food Courts & Grocery

Prepared food sections and in-store kitchens sharing large interceptor infrastructure across multiple tenants.
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Stadiums & Event Venues

Peak-load kitchens with interceptors sized for massive event-day volume and infrequent but critical service windows.
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Correctional & Government

Commissaries and institutional kitchens require fully permitted, documented interceptor maintenance.
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Commissaries & Processors

Centralized food production facilities with the largest interceptors and the highest FOG output in the industry.

Stay Ahead of Inspectors

Grease Interceptor Compliance & Sizing

Large interceptors are governed by stricter rules than small traps — and getting the sizing wrong is the most common reason facilities fail. Here is what you need to know and how Southwaste keeps you ahead.

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The 25% Rule

FOG and solids accumulation must never exceed 25% of your interceptor’s total liquid capacity. This is the universal standard enforced by municipalities nationwide — exceed it and your interceptor stops separating grease effectively, which is the most common cause of failed health inspections and sewer surcharges.
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Sizing by Flow Rate

Interceptors are sized by gallons per minute (GPM) of wastewater flow, not just by the number of fixtures. An undersized interceptor will bypass grease even when pumped regularly. Our team can help you confirm whether your current interceptor is sized correctly for your kitchen’s output—and flag issues before the inspector does.
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Required Documentation

Most jurisdictions require proof of pumping at defined intervals, including waste manifests showing the volume removed and the disposal destination. Southwaste provides complete digital records formatted for your sewer district and health department, maintained and accessible whenever you need them.
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Local Code Varies

Grease interceptor regulations differ by city, county, and state — from pumping frequency to minimum sizing to required cleaning of downstream lines. We know the local codes and the people enforcing them across all six states we serve, so your facility stays compliant without you having to become an expert.

Service Areas

Our Service Locations

Southwaste operates across twelve states with dedicated teams in each metro area. Click your city for location-specific service details, local compliance info, and contact numbers.

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Atlanta

Serving Metro Atlanta, Cobb County, Marietta, and Vinings, with fast, dependable service.
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Austin

Serving the Austin metro, Round Rock, and Travis County with reliable liquid waste services.
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Chicago

Full coverage of Chicagoland — downtown, suburbs, and the collar counties with Illinois EPA-compliant service.
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Dallas / Fort Worth

Full coverage of the DFW metroplex — Dallas, Fort Worth, Arlington, and all suburbs.
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Houston

Our headquarters. Serving Harris County and all surrounding areas with same-day emergency response.
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Jacksonville

Jacksonville manages liquid waste services throughout Duval County and Northeast Florida
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Lafayette

Covering Lafayette Parish, Acadiana, and the I-10 corridor with reliable grease trap maintenance across Cajun Country.
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Orlando

Our Florida hub. Serving Orange County, Kissimmee, and Central Florida with Florida DEP-compliant service.
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San Antonio

Covering San Antonio, New Braunfels, and the I-35 corridor with scheduled and emergency service.
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San Diego

Serving San Diego County, the Gaslamp Quarter, and coastal communities with California-compliant liquid waste management.
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Santa Ana (LA)

Covering Orange County, Anaheim, Irvine, and Southern California with reliable, scheduled grease trap service.
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Tampa

Covering Tampa Bay, St. Petersburg, Clearwater, and the Gulf Coast with Florida DEP-compliant service.
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Got Questions?

Grease Interceptor FAQ

Common questions about large in-ground grease interceptors, pumping frequency, and compliance across our service area.

What is the difference between a grease trap and a grease interceptor?

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People often use the two terms interchangeably, but they describe different equipment. A grease trap is a small indoor unit, typically installed under or near a sink, rated for low-flow kitchens. A grease interceptor is a large in-ground tank — usually 500 gallons and up — installed outside to handle the high FOG volume of commercial kitchens, chains, and institutional facilities. Interceptors require larger, high-capacity vacuum trucks and follow stricter municipal sizing and maintenance rules. Southwaste handles both, but this page focuses on large interceptors.

How often should a large grease interceptor be pumped?

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It depends on capacity and kitchen output, but large interceptors are typically pumped quarterly, semi-annually, or annually. The governing rule is universal: FOG and solids must never exceed 25% of the tank’s total liquid capacity. We measure accumulation at every visit and adjust your schedule so you are always pumped before hitting that threshold — never after failing an inspection.

What happens if my interceptor is not pumped on schedule?

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FOG builds up past capacity and begins bypassing into the municipal sewer — triggering surcharges, fines, and possible legal action from your sewer district. Inside the facility, you will notice slow drains, foul odors, and eventually backups that can shut down the kitchen entirely. A neglected interceptor is also far more expensive to recover from than a scheduled pump, and large interceptors cost substantially more to repair or replace than small traps.

Do you service interceptors at multi-location chains?

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Yes, this is a core strength. We manage interceptor programs across dozens of sites simultaneously, with consistent documentation, consolidated billing, and a single point of contact. Our 12 hubs across 6 states mean we can cover a chain’s entire footprint with one vendor and one service standard.

Are you permitted to haul and dispose of interceptor waste in all your service areas?

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Southwaste is fully permitted by TCEQ, Florida DEP, CalEPA, Georgia EPD, Illinois EPA, and Louisiana DEQ to haul, process, and dispose of grease interceptor waste. Every load is transported under permit to an approved processing facility — never to an unauthorized location — and the beneficial reuse of recovered brown grease supports our zero-landfill commitment.

Can you handle emergency interceptor overflows?

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Absolutely. We offer 24/7 emergency response across all six states. Call 866-413-9494 and our nearest hub dispatches a high-capacity truck immediately to pump down an overflowing interceptor, clear downstream lines if needed, and get your kitchen back in operation.

Still have questions?

Our team is happy to walk you through anything — pricing, scheduling, compliance requirements, or technical details.

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Complete Your Wastewater Solution

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