Grease Interceptor — City of Phoenix (Water Services)

What it is. A pre-approved grease interceptor to keep fats, oils, and grease (FOG) out of the sewer, required under City Code Chapter 28 pretreatment (which implements the Clean Water Act / 40 CFR 403). All pretreatment devices must be pre-approved by the City's Environmental Services Division; the smallest gravity interceptor allowed is a 2-compartment, 2-manway, 500-gallon unit.

Who issues/enforces it. City of Phoenix Water Services Department — Environmental Services Division / Industrial Pretreatment (City layer).

When you need it. Any restaurant discharging FOG; the device is sized and installed during build-out.

How to comply. Install a City-approved, correctly sized interceptor following the FOG Best Management Practices manual.

Fees. Per City of Phoenix Water Services — see source (⟢ VERIFY).

What SpoonSeal tracks. The document(s) you upload for this requirement, with automatic renewal/expiration tracking (Current, Due Soon, Expired). Where the city publishes health-inspection results (e.g., NYC and Chicago), SpoonSeal syncs them automatically; elsewhere they can be added manually.

References

• City of Phoenix Water Services — Commercial Inspection and Fat, Oil, and Grease — https://www.phoenix.gov/administration/departments/waterservices/environmental-excellence/commercial-compliance/commercial-inspection-fat-oil-grease.html — Official source last checked: 2026-07-02
• Phoenix City Code §28-15 (Interceptors—Maintenance) — https://phoenix.municipal.codes/CC/28-15 — Official source last checked: 2026-07-02