Maine FOG & Grease Trap Rules
Portland, Maine
Restaurants must install city-approved grease interceptors and maintain wastewater within the city’s oil-and-grease limits: total oil and grease below 500 mg/L and non-polar oil and grease below 100 mg/L. Wastewater-capacity applications include grease-interceptor calculations during licensing or development. Contact Portland Public Works for inspection and operating requirements.