Prepared by GreaseTrapLocator · Fact review: August 8, 2026
Who may inspect
Depending on the jurisdiction and issue, the inspector may represent a sewer or pretreatment program, public health, plumbing/building enforcement, or another authorized body. The inspection notice, permit, and local program identify the scope and authority.
Build the inspection packet
- Permit, registration, approved plan, and revisions.
- Exact device make/model and current manufacturer manual.
- Maintenance and inspection log.
- Service reports, invoices, and required waste/disposal documents.
- Defect, repair, alarm, and corrective-action records.
- Previous notices, deadlines, communications, and proof of completion.
- Facility manager and local-program contact information.
Prepare safe access
Clear ordinary storage and access obstructions, identify the device, and keep the responsible manager available. Do not open, enter, or lean into equipment for a generic inspection checklist. Follow the inspector's authority, the manufacturer instructions, and the site safety process.
If the inspector issues a notice
Read the exact finding, cited rule, required correction, deadline, appeal or review process, and reinspection direction. Assign one person to the response, preserve all communications, and submit only accurate evidence. Do not rely on generic national fine ranges or assumed grace periods.
Official sources used
Seattle Public Utilities
Seattle uses a 25 percent trigger when manufacturer specifications are unavailable, prohibits emulsifying agents/enzymes/bio-additives, supplies local self-cleaning guidance, and directs a business with a backup into the premises to close and contact public health.
Fats, Oils, & Grease: Commercial Kitchens · reviewed August 8, 2026
City of Chandler
Local programs may require maintenance records and specific service information; the actual local record rule controls.
Food Service Establishments: Industrial Pretreatment Program · reviewed August 8, 2026
Connecticut Department of Energy and Environmental Protection (DEEP)
The cited permit uses 25 percent of operating depth or three months, whichever is more frequent, requires specified records for five years, and prohibits intentionally using hot water, steam, chemicals, or biological additives to release FOG.
General Permit for the Discharge of Wastewater Associated with Food Establishments (effective October 5, 2025) · reviewed October 16, 2026
U.S. Occupational Safety and Health Administration
Smell is not a reliable warning. Evaluate hydrogen-sulfide and confined-space hazards and apply the monitoring, training, entry controls and respiratory protection required by the applicable standards and site assessment.
Hydrogen Sulfide: Evaluating and Controlling Exposure · reviewed August 8, 2026
Frequently asked questions
How often will our grease trap be inspected?
The frequency and trigger depend on the local program, permit, complaint, project, and enforcement history.
What records should we have ready?
Prepare the locally required permit or plan, device manual, maintenance log, service reports, required disposal records, repairs, notices, and corrective actions.
Are enzymes usually acceptable?
Do not assume so. Some local programs prohibit enzymes and bio-additives. Check the controlling rule before use.
What should we do after a notice?
Follow the cited rule, correction, deadline, and response process in the actual notice, and keep evidence of completion.
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