Arizona Grease Trap Regulations (2026)
Everything a Arizona restaurant or commercial kitchen needs to know about grease trap requirements: who regulates it, how often you must clean, what permits and registration you need, what records to keep, and what violations actually cost. Citations link to the official source so you can verify every claim — and show your inspector you did.
Arizona Requirements at a Glance
| Cleaning frequency | No statewide FOG interval — cities set the rules. Phoenix: gravity interceptors fully pumped at least every 3 months (or at 25% of capacity); hydromechanical units at least every 30 days. Pima County (Tucson): hydromechanical at least monthly; gravity interceptors at least every 6 months or at the 25% threshold. |
| State regulator | Arizona Department of Environmental Quality (ADEQ), Water Quality Division — FOG programs run by local pretreatment authorities |
| Governing regulation | Arizona Revised Statutes Title 49 (AZPDES program); local grease interceptor requirements set by municipal industrial wastewater ordinances |
| Manifest required | Yes — work orders/manifests per local program — Pima County's Preferred Pumper Program requires pumpers to file monthly work-order reports with Industrial Wastewater Control (source) |
| Licensed hauler required | Yes — ADEQ Septage Hauler License for vehicles of 750+ gallon capacity; Pima County additionally runs a Preferred Pumper Program with local standards (source) |
| Record retention | 3 years minimum in Phoenix — all cleaning dates, volume removed, device capacity, disposal details, and repairs, kept at the facility and produced on request (Phoenix City Code §28-15) (source) |
| Penalties | Enforcement is municipal: Phoenix issues written correction requirements under City Code Chapter 28 and may take enforcement action for sewer blockages; Pima County escalates from a no-fine 30-day correction notice to formal enforcement, sewer surcharges, or permit review. (source) |
Who Regulates Grease Traps in Arizona
At the state level, Arizona Department of Environmental Quality (ADEQ), Water Quality Division — FOG programs run by local pretreatment authorities (program page) oversees FOG (fats, oils, and grease) discharge; the governing rule is Arizona Revised Statutes Title 49 (AZPDES program); local grease interceptor requirements set by municipal industrial wastewater ordinances. Day-to-day enforcement — inspections, cleaning intervals, fines — usually happens through your city or county sewer utility's pretreatment program, which can set stricter rules than the state.
Hauler Licensing & Verification
Arizona requires grease trap waste to be transported by licensed/registered haulers under ADEQ Septage Hauler License for vehicles of 750+ gallon capacity; Pima County additionally runs a Preferred Pumper Program with local standards. (source) Before signing a contract, verify the hauler's registration on the official lookup — it takes two minutes and it's the single best protection against illegal-dumping liability landing on you.
Manifests & Record Keeping
- Collect a signed manifest (work orders/manifests per local program — Pima County's Preferred Pumper Program requires pumpers to file monthly work-order reports with Industrial Wastewater Control) at every service — date, volume removed, hauler license, disposal facility. (source)
- Keep records 3 years minimum in Phoenix — all cleaning dates, volume removed, device capacity, disposal details, and repairs, kept at the facility and produced on request (Phoenix City Code §28-15). (source)
- Track everything in one place: free maintenance log and cleaning schedule template.
City Programs in Arizona
Cities run their own FOG programs and often set stricter rules than the state:
Phoenix
- Program: City of Phoenix Water Services — Commercial Inspection / FOG Program
- Ordinance: Phoenix City Code §28-15
- Cleaning frequency: Gravity interceptors: at least every 3 months or at 25% of capacity. Hydromechanical interceptors: at least every 30 days.
- Permit: Approved grease interceptors required at food service establishments; inspected by Environmental Services Division. Note: chemicals, enzymes, or bacteria in lieu of physical cleaning are prohibited.
Tucson (Pima County)
- Program: Pima County Regional Wastewater Reclamation — Industrial Wastewater Control Grease Management + Preferred Pumper Program
- Ordinance: Pima County Industrial Wastewater Ordinance 2013-32, §13.36.400–.450
- Cleaning frequency: Hydromechanical: at least monthly. Gravity: at least every 6 months or at 25% of depth.
- Permit: Industrial wastewater discharge permit; minimum sizing of 300-gallon gravity or 25 GPM hydromechanical
- Fines: First written notice carries a 30-day correction window with no fine; unresolved violations escalate to formal enforcement and sewer surcharges
Worth Knowing in Arizona
Arizona has no state-level FOG statute — everything runs through municipal industrial wastewater ordinances. Phoenix explicitly bans the enzyme/chemical shortcut: under City Code §28-15, additives may not substitute for physical cleaning. Pima County's Preferred Pumper Program effectively pre-vets haulers and requires them to report your pump-outs monthly, so Tucson kitchens get compliance reporting almost for free by using a PPP hauler.
Frequently Asked Questions
How often must grease traps be cleaned in Arizona?
No statewide FOG interval — cities set the rules. Phoenix: gravity interceptors fully pumped at least every 3 months (or at 25% of capacity); hydromechanical units at least every 30 days. Pima County (Tucson): hydromechanical at least monthly; gravity interceptors at least every 6 months or at the 25% threshold. Your city's FOG program may require more frequent service — and regardless of the legal interval, clean before fats, oils, and grease reach 25% of trap capacity.
Do I need a manifest for grease trap cleaning in Arizona?
Yes. Get a signed manifest (work orders/manifests per local program — Pima County's Preferred Pumper Program requires pumpers to file monthly work-order reports with Industrial Wastewater Control) from the hauler at every service and keep it 3 years minimum in Phoenix — all cleaning dates, volume removed, device capacity, disposal details, and repairs, kept at the facility and produced on request (Phoenix City Code §28-15). It's the document inspectors ask for first.
What are the penalties for grease trap violations in Arizona?
Enforcement is municipal: Phoenix issues written correction requirements under City Code Chapter 28 and may take enforcement action for sewer blockages; Pima County escalates from a no-fine 30-day correction notice to formal enforcement, sewer surcharges, or permit review. Enforcement is usually municipal, so your city's fine schedule controls — the fastest way to stay off it is a maintained cleaning schedule and complete records.
Can anyone pump my grease trap in Arizona?
No — use a licensed/registered hauler (ADEQ Septage Hauler License for vehicles of 750+ gallon capacity; Pima County additionally runs a Preferred Pumper Program with local standards). If your hauler dumps illegally, the paper trail you kept is your protection. Verify registration on the official lookup linked above.
Do I need a permit for a grease trap in Arizona?
In most Arizona cities, yes — food service establishments must register with, or get a permit from, the local FOG / pretreatment program before discharging grease trap waste to the sewer. The exact permit and registration requirements vary by city; the major-city programs are listed above, and your local sewer authority has the specifics for your address.
Next Steps
- Find grease trap cleaning companies in Arizona
- Run the Arizona-adapted compliance checklist
- Put manifests and pricing in writing (free template)
Official Sources
- https://azdeq.gov/septage-haulers
- https://azdeq.gov/permits-needed-septage-hauler
- https://phoenix.municipal.codes/CC/28-15
- https://www.phoenix.gov/waterservices/envservices/comminsp
- https://www.pima.gov/1805/Industrial-Wastewater-Control-IWC
- https://www.pima.gov/1810/Preferred-Pumper-Program-PPP
This guide summarizes official sources for general information and is not legal advice. Rules change — confirm requirements with Arizona Department of Environmental Quality (ADEQ), Water Quality Division — FOG programs run by local pretreatment authorities and your local FOG program.
Arizona Grease Trap Costs & Rules by City
City-level pricing, cleaning frequency and permit requirements:
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