What Is a Fatberg? The Gross Grease Giants Threatening Cities

A fatberg found in a Macomb County, Michigan sewer pipe in 2018. Photo courtesy of the Macomb County Public Works Office.

Fatbergs have become commonplace in city sewer systems around the world. They are an accumulation of fat, oil, and grease congealed around common household solid waste items like “flushable” wipes, paper towels, and tampons. The removal of fatbergs places a financial burden on cities. Residents can do their part by remembering that the four Ps—pee, poop, puke, and (toilet) paper—are the only things that should be flushed. Learn more about how to dodge clogs in LCC’s Clean Lake Tip.

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