Grease trap requirements Georgia restaurant owners face start with Atlanta’s shocking mandate. Atlanta requires two 1,500-gallon grease interceptors for every new food service establishment, 3,000 gallons combined capacity before you serve a single customer.
Key Takeaways:
• Atlanta’s Department of Watershed Management mandates 3,000 gallons combined capacity (two 1,500-gallon interceptors) for all new food service establishments
• Fulton County operates separate FOG programs outside Atlanta city limits with different sizing requirements and permit processes
• Georgia adopts the International Plumbing Code but gives municipalities full authority to set stricter grease trap requirements
What Are Atlanta Department of Watershed Management Grease Trap Requirements?
Atlanta Department of Watershed Management grease management program is the municipal FOG control system that enforces pretreatment standards for food service establishments within Atlanta city limits. This means every restaurant, cafeteria, and commercial kitchen must comply with specific grease interceptor requirements before connecting to the city’s sewer system.
Atlanta Department of Watershed Management requires two 1,500-gallon interceptors for new food service establishments. The 3,000-gallon combined capacity represents the city’s default mandate, applied uniformly across restaurant types without initial consideration for kitchen size or menu. You cannot open a new restaurant in Atlanta without installing this equipment first.
This requirement stems from EPA 40 CFR 403 pretreatment standards, which prohibit discharge of fats, oils, and grease (FOG) that causes interference with municipal treatment operations. Atlanta’s interpretation sets one of the highest baseline capacity requirements in the United States. Most major cities start with 1,000-1,500 gallon minimums. Atlanta doubles that before you cook anything.
The program covers all food service establishments within Atlanta city limits that connect to the municipal sewer system. Mobile food vendors parking within the city fall under separate permitting rules. Existing establishments face retrofit requirements during major renovations or when violations occur. The Department of Watershed Management issues permits, conducts inspections, and enforces compliance through its Industrial Pretreatment Division.
How Does Georgia State Authority Work for Grease Trap Requirements?
Georgia adopts International Plumbing Code with municipal override authority for local FOG control programs. The state follows IPC Section 1003 for baseline grease interceptor requirements but delegates enforcement and standard-setting to individual municipalities. This creates a patchwork of requirements across the state.
Georgia follows International Plumbing Code Section 1003 for baseline grease interceptor requirements. The code establishes minimum standards for when grease interceptors are required and basic sizing calculations. However, Georgia’s adoption gives municipalities complete authority to impose stricter requirements, different sizing methods, and additional permit processes.
Municipal FOG ordinance authority means Atlanta can require 3,000 gallons while neighboring jurisdictions might accept 1,000 gallons. Gwinnett County uses different sizing formulas. DeKalb County has separate inspection schedules. Each jurisdiction interprets the same federal pretreatment mandate through its own local lens.
State authority essentially ends at code adoption. Georgia provides no statewide FOG program oversight, no uniform sizing standards, and no appeal process for municipal decisions. If you operate restaurants in multiple Georgia cities, you face completely different requirements in each location. The state Environmental Protection Division handles water quality permits but defers grease trap standards to local authorities.
What Are the Variance and Exemption Processes for Smaller Establishments?
Smaller establishments can apply for variance through case-by-case review process administered by Atlanta Department of Watershed Management. The variance system acknowledges that some food service operations generate less FOG than the 3,000-gallon default assumes.
Submit variance application with detailed operational plans showing actual FOG generation estimates, menu descriptions, cooking methods, and projected daily covers served.
Provide engineering calculations justifying reduced capacity based on fixture unit counts, wastewater flow rates, and FOG load analysis from similar operations.
Include site plans showing proposed interceptor locations, access points for maintenance, and compliance with setback requirements from property lines and utilities.
Attend variance review meeting with Department of Watershed Management staff to present your case and answer technical questions about operations and maintenance plans.
Implement approved alternative requirements exactly as specified in the variance approval, including any monitoring or reporting conditions attached to the permit.
Case-by-case variance review process through Atlanta Department of Watershed Management typically takes 60-90 days from complete application submittal. Coffee shops, juice bars, and limited menu operations have the best success rates. Full-service restaurants with frying operations rarely receive meaningful capacity reductions.
The Department considers actual FOG discharge potential, not just square footage or seating capacity. A bakery with minimal oil use might qualify for 1,500 gallons total. A fried chicken restaurant will face the full 3,000-gallon requirement regardless of size. Approval depends on convincing staff that your specific operation genuinely needs less capacity.
How Do Fulton County and DeKalb County FOG Programs Compare?
Fulton County operates separate FOG program from Atlanta city limits with different sizing requirements, permit fees, and violation penalties. Areas outside Atlanta within Fulton County follow county rules, not city rules.
| Factor | Fulton County (Outside Atlanta) | DeKalb County | Atlanta City Limits |
| — | — | — |
| Minimum Capacity | 1,500 gallons single interceptor | 1,000 gallons based on fixture units | 3,000 gallons (two 1,500-gallon units) |
| Permit Fees | $275 initial, $150 annual renewal | $200 initial, $125 annual renewal | $350 initial, $200 annual renewal |
| Inspection Frequency | Every 18 months | Every 12 months | Every 6 months |
| Violation Penalties | $100-$500 per day | $150-$750 per day | $250-$1,000 per day |
| Variance Process | Available for operations under 50 seats | Limited to coffee shops and bakeries | Case-by-case review for any operation |
| Pumping Requirements | Every 90 days maximum | Every 90 days maximum | Every 60 days maximum |
DeKalb County uses fixture unit calculations from the International Plumbing Code to determine minimum interceptor size. A restaurant with 10 fixture units might need only 1,000 gallons. Fulton County outside Atlanta requires 1,500 gallons minimum but allows single-compartment interceptors instead of Atlanta’s dual-unit mandate.
Permit processes differ significantly between counties. Fulton County requires quarterly pumping reports. DeKalb County accepts annual compliance certifications. Atlanta demands monthly waste manifests and semi-annual inspection reports. The documentation burden increases as you move from county to city jurisdiction.
Both counties operate active enforcement programs with regular inspections and meaningful penalties. DeKalb County has stricter fine schedules but less frequent inspections. Fulton County focuses on new construction compliance over existing establishment monitoring. Atlanta combines high baseline requirements with aggressive ongoing oversight.
Which Other Georgia Counties and Cities Have FOG Control Programs?
Gwinnett County maintains active FOG control program separate from Atlanta with its own sizing requirements, permit processes, and enforcement staff. Most Georgia municipalities with populations over 50,000 operate some form of grease interceptor regulation.
• Gwinnett County requires 750-1,500 gallons based on seating capacity calculations, with permits through the Department of Water Resources and quarterly inspection schedules
• Cobb County follows International Plumbing Code minimums (500-1,000 gallons) but requires annual pumping contracts with licensed haulers and violation penalties up to $1,000 per day
• Augusta-Richmond County mandates 1,000-2,000 gallons for restaurants over 2,500 square feet, with permits through the Utilities Department and semi-annual compliance reporting
• Columbus (Muscogee County) requires 1,500 gallons minimum for all food service establishments, with monthly waste manifest submissions and $500 daily violation fines
• Savannah uses fixture unit calculations resulting in 750-1,500 gallon requirements, with permits through the Water and Sewer Department and annual compliance inspections
• Warner Robins requires 1,000 gallons minimum with quarterly pumping schedules and maintains active violation enforcement through the Public Works Department
• Marietta mandates 1,500 gallons for new construction and 1,000 gallons for existing establishments during major renovations, with permits through the Water Department
• Roswell requires 1,000-2,000 gallons based on kitchen square footage calculations, with annual permit renewals and compliance certifications required
City-level enforcement program effectiveness varies dramatically across Georgia jurisdictions. Larger municipalities like Augusta and Columbus maintain dedicated FOG program staff with regular inspection schedules. Smaller cities often rely on complaint-driven enforcement with minimal ongoing oversight.
Most Georgia FOG programs require licensed grease hauler services, waste manifest documentation, and regular pumping schedules. Permit fees range from $100-$350 annually. Violation penalties typically start at $250 per day and escalate for repeat violations or sewer system impacts.
Frequently Asked Questions
Do food trucks need grease traps under Georgia requirements?
Georgia follows International Plumbing Code which exempts mobile food units from permanent grease interceptor installation. However, individual cities like Atlanta can impose stricter requirements for food trucks operating within their jurisdictions. Check with each municipality where you plan to operate.
What happens if my restaurant is on the border between Atlanta and Fulton County?
Your grease trap requirements depend on which jurisdiction issues your business license and handles your wastewater connection. Atlanta city limits follow Department of Watershed Management rules, while unincorporated Fulton County areas follow separate county FOG program requirements. Verify your exact jurisdiction through your water bill or municipal offices.
Can I appeal Atlanta’s 3,000-gallon grease trap requirement?
Yes, smaller establishments can request variances through Atlanta Department of Watershed Management’s case-by-case review process. You must demonstrate that your operation’s actual FOG discharge justifies reduced capacity requirements. Coffee shops and bakeries have better success rates than full-service restaurants with frying operations.