Grease Trap Requirements
Little Rock, AR
FOG compliance regulations for food service establishments in Little Rock, Arkansas.
FOG Compliance in Little Rock, AR
Food service establishments in Little Rock operate under a combination of federal EPA pretreatment standards, Arkansas state plumbing code, and city-level FOG ordinances. Together these rules determine how grease traps must be sized, how often they must be pumped, and what happens when a restaurant falls out of compliance.
Pumping frequency is the compliance rule restaurant owners interact with most often. In Little Rock, the rule is: Minimum every 90 days (quarterly) or when 25% full. This aligns with the 90-day US median enforced by most major cities. The city follows the International Plumbing Code (IPC) for trap sizing and installation. Under Section 1003.3.4, which sizes traps by drainage fixture unit counts, grease interceptors installed in Little Rock must meet minimum capacity thresholds based on the fixtures connected to them — 3-compartment sinks, dishwashers, pre-rinse stations, wok stoves, and floor drains on the cook line. The local minimum trap size is: 1,000 gallons for gravity interceptors.
Little Rock requires a dedicated FOG permit for any food service establishment generating fats, oils, and grease. The permit is separate from, and in addition to, the plumbing permit required at installation.
Little Rock enforces the 25 percent rule: grease traps must be pumped before the combined FOG and settled solids reach 25 percent of the trap's total liquid depth. Inspectors measure the depth with a sludge judge or dipstick, typically at surprise visits. Exceeding the threshold at inspection triggers a notice of violation and mandatory emergency pump-out, regardless of the scheduled pumping cycle. Devices inspected during each pump-out event. Establishments must maintain pumping logs, hauler manifests, and inspection reports on-site — missing records is itself a violation in most enforcement actions. Enforcement authority rests with the Little Rock Water Reclamation Authority (LRWRA), which handles permit issuance, inspections, and hauler licensing.
For a deeper explanation of the rules this city enforces, read our guides on how grease traps work and the 25/50 pumping rule.
Pumping Requirements
Permits & Enforcement
Complete FOG Regulations
| Minimum Trap Size | 1,000 gallons for gravity interceptors |
|---|---|
| Pumping Frequency | Minimum every 90 days (quarterly) or when 25% full |
| 25% Rule | Yes — trap must be pumped when grease and solids reach 25% of capacity |
| Permit Required | Yes |
| Inspections | Devices inspected during each pump-out event |
| Record Keeping | Required — maintain pumping logs and manifests on-site |
| Plumbing Code | International Plumbing Code (IPC) |
| Authority | Little Rock Water Reclamation Authority (LRWRA) |
Additional Notes
Governed by Ordinance No. 21,801. FSEs must register via FOG Register (fogregister.com/lrwra). BMP certification required. Haulers must be on LRWRA approved list.
Last verified: — Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions.
Contact Information
(501) 688-1410Vincent Hotho Program Supervisor (Engineering Services): (501) 688-1452
Official Sources
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