Fats, Oils & Grease (FOG) Program

We need your help to keep Bothell’s sewer system working its best and keep repair costs down. Fats, oils and grease from cooking cause up to a third of all sewage overflow problems in Bothell. This can result in potential public health issues and pollution problems.

Effects of pouring fats, oils & grease down the drain


Fats, oils and grease are found in common food and food ingredients such as meat, fish, butter, cooking oil, mayonnaise, milk, gravies, sauces and food scraps. If poured down the drain or into your garbage disposal, fats, oils and grease will build up over time by sticking to your side sewer. This could eventually cause an expensive sewer back up into your home or our natural water system. The results of a grease-blocked sewer pipe can be:
  • Sewage overflows in your home or your neighbor's home.
  • Expensive and unpleasant cleanup that often must be paid for by the property owner.
  • Possible contact with disease-causing organisms.
  • An increase in operation and maintenance costs by the City sewer system and the regional treatment system, which causes higher sewer bills for customers.

How to prevent sewer backups


By following a few simple steps, you can help prevent sewer backups and spills:
  • Pour cooled fats, oils and grease into a covered, disposable container and throw it into your garbage. Never pour fats, oils or grease down sink drains or toilets.
  • Soak up remaining oils and grease.
  • Before you wash dishes, scrape food scraps, fats, oils and grease into your compost or trash.
  • Avoid putting fats, oils and grease down your garbage disposal. Use sink strainers to catch any remaining food waste while washing dishes.

By keeping fats, oils and grease out of the drain, you directly help the City of Bothell keep costs low for everyone!