Maine · FOG rules

Portland, ME grease trap requirements

Official pumping rule: 25% rule or at least every 3 months. Quoted from the official source below — verify with your city.

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Last checked Nov 2, 2026 against City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47)

Program run by City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47). Hand-checked against source Report an error / rule changed

Quick answer

How often to pump: 25% rule or at least every 3 months
Interceptor minimum / sizing: 1,000 gal for full-service restaurants (Class 3)
Permit / fees: Not stated in the sources we checked. Ask City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47) whether a FOG or wastewater permit applies.

From the official source(s) below, last checked 2026-11-02. Rules change; verify with your city.

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Tell us what you need and we'll send your request to the Featured grease trap service companies in Portland, ME, with a copy to us. If there are none yet, it comes only to us and we may reply to help you find someone. Free, no obligation. For restaurants and for property, building and facility managers.

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How often does Portland require grease trap pumping?

Portland's pumping rule is quoted below from the official source. Want a heads-up before your next pump-out? Get free email reminders on Portland's schedule. For restaurants and for property, building and facility managers. How reminders work

Portland rule: 25% rule or at least every 3 months. The source says: “Inspect interceptors monthly. Clean when FOG and solids reach 25% or at least every three months, whichever is more frequent. No partial pumping. Passive units/AGRUs: weekly inspection and full cleanout at least monthly.” Source: City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47), checked 2026-11-02.

Fines: “Civil penalty of at least $1,000 per day per violation after the notice deadline. If the City has to pump the interceptor, the charge is twice the actual cost. Causing a blockage triggers an Industrial Discharge Permit requirement.” Source: City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47), checked 2026-11-02.

Required by Portland: every 90 days.

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Yes, email me free grease trap pump-out reminders from GreaseTrapRules for the business and city above: up to 3 emails before each due date. Reminders include a link to request quotes from local pumping companies; nothing is shared with any company unless I send a quote request myself or tick the optional sharing box below. I can unsubscribe in one click from any email. Privacy Policy Optional: let the Featured pumping companies for my city see my business name, city, email and next due date, so they can offer to book my pump-out. Off unless you tick it. You can turn it off any time by replying to any reminder email.

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Rules change; verify with your city. Summaries are plain-English restatements of the official source linked below; “Source says” shows the exact wording. Blank rows mean the sources we checked did not state that rule, not that there is no rule.

Portland grease trap rules at a glance

Grease trap and FOG (fats, oils and grease) rules for restaurants in Portland are set by City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47). Pumping: 25% rule or at least every 3 months. Sizing: 1,000 gal for full-service restaurants (Class 3). Pumping must be done by an approved or licensed hauler. Keep pumping records or manifests on site for inspectors. The ordinance sets penalties for violations (see Fines & penalties below). Got a FOG violation notice in Portland? What to do.

Of the 1 Maine program we track, 1 states a pumping schedule and 0 require a permit. We have not verified a pumping company for Portland yet; see Maine pumping companies. Compare all Maine cities.

Portland grease trap & interceptor rules, line by line

Required trap / interceptor type	Not stated in the sources we checked
Sizing rule	By FSE class: Class 1-2 need a 25 gpm AGRU; Class 3 full-service restaurants a 1,000-gallon grease interceptor; Class 4 buffets 1,500 gallons; Class 5 institutions 2,000 gallons. ✓ checked against source
Pumping / cleaning frequency	Inspect interceptors monthly. Clean when FOG and solids reach 25% or at least every three months, whichever is more frequent. No partial pumping. Passive units/AGRUs: weekly inspection and full cleanout at least monthly. ✓ checked against source
Permit required?	Not stated in the sources we checked
Permit & program fees	Not stated in the sources we checked
Inspections	Not stated in the sources we checked
Record keeping	Keep records on site for 3 years (dates, quantity pumped, condition, repairs, who serviced it). The City may require them yearly with business license renewal. ✓ checked against source
Pumper / hauler approval	Use a licensed hauler for complete removal, with written documentation. ✓ checked against source
Reporting portal	Not stated in the sources we checked
Fines & penalties	Civil penalty of at least $1,000 per day per violation after the notice deadline. If the City has to pump the interceptor, the charge is twice the actual cost. Causing a blockage triggers an Industrial Discharge Permit requirement. ✓ checked against source
Program contact	Not stated in the sources we checked

Sources

https://content.civicplus.com/api/assets/6d6bc104-fbf3-463a-8360-e582df54f8c1 · checked 2026-11-02
https://www.portlandmaine.gov/563/Fats-Oils-and-Grease-Program · checked 2026-11-02

Featured spots in Portland: 3 of 3 available. Free to be listed — pumpers pay a flat $59 only when a request we send becomes a booked job. For pumping companies · Free service record & manifest maker

Grease trap cleaning & pumping companies in Portland, ME

No verified pumping company for Portland yet. Free listings are sorted A–Z. A listing is not an endorsement.

Pump traps in Portland? Free paperwork for every job. Make a service record or manifest PDF with the record fields Portland's rules ask for, signed on your phone and ready to send the restaurant.

Make a Portland service record

Before you book: Portland has hauler rules (see the table above). Ask the company to confirm it is approved for Portland, and keep a signed manifest for every pump-out.

Be the recommended pumper here. Top-pick pumpers get first look at quote requests from Portland kitchens. Listing is free; you pay a flat $59 only when a request we send becomes a booked job — under a short written agreement first, and nothing for leads that don’t book. 3 of 3 spots left
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Size your interceptor

Use the grease interceptor sizing calculator (UPC, IPC and PDI methods), then confirm Portland's own minimums above. Not sure how often to pump? Read how often to pump a grease trap.

Portland grease trap FAQ

How often do grease traps have to be pumped in Portland, ME?

Pump 25% rule or at least every 3 months. Source: City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47), checked 2026-11-02. Rules change; confirm with the local sewer authority.

What size grease interceptor is required in Portland?

1,000 gal for full-service restaurants (Class 3), per the official source. Your plumbing official can require more.

Who enforces grease trap rules in Portland, ME?

City of Portland Public Services, FOG Program Rules (City Code Ch. 24, Sec. 24-47). Contact them for permits, inspections and approved haulers.

Grease trap guides

For property and building managersTenant vs landlord, shared interceptors, records How often to pumpThe 25% rule and city schedules FOG inspection checklistWhat inspectors check Printable maintenance logPlus record-keeping rules All guidesSizing, trap vs interceptor, cost factors

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