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FOG Control Program

A sign advising not to pour fats, oils, or grease down the drain, shown with a red prohibition symbol.

The purpose of the FOG Control Program is to prevent fats, oils, and grease (FOG) from entering the Mammoth Community Water District’s sewer system. FOG accumulation causes sewer backups and spills which are a threat to health and safety. FOG is difficult and costly to manage both in the sewer collection system and at the wastewater treatment plant. MCWD strives to minimize the amount of FOG entering the sewer through outreach and education, offering free supplies such as dish squeegees and sink strainers, and through the establishment and enforcement of regulations for the discharge of FOG and other insoluble waste. We thank you for working with us to provide sustainable service to the community.

A clogged pipe filled with a thick, greasy substance blocking the flow.

Please remember the drain is not a trash can. It is in your best interest to keep FOG out of your pipes! Clogs and backups are very costly, and your pipes are your responsibility.

In case of a sewage spill, notify the District immediately by telephone at (760) 934‐2596. For questions about FOG use extension 232. Do not hesitate to reach out with any questions, we are always happy to chat.

Residential:

Your pipes are only designed to handle toilet paper and human waste. See Know your System for a helpful infographic.

 Tips to keep your drains fat free:

  • Pour fats, oils and grease into a container such as an empty jar, coffee can, soup can or empty caryons. Once the materials have cooled and solidified, secure the lid and throw it in the trash. 
  •  Anything greasy, oily, or fatty (salad dressing, dairy products, etc.) should go in the trash, not down the drain. When in doubt, put it in the trash.
  • Before washing dishes, scrape food scraps into the trash and use a paper towel to wipe FOG from pans.
  • An in-sink garbage disposal should be used minimally. Use a sink strainer to catch food waste.

Commercial:

The FOG Control Program requires all Food Service Establishments (FSEs) to obtain a FOG Discharge Permit prior to any operations. FSEs must also notify the District in advance of any substantial changes to the FSE, property, menu, or operations.

Program Resources

FOG Training Videos

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