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Natural Resources and Parks

King County, Washington

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Nov. 21, 2012

Save your pipes after the feast by taking used cooking oil to a recycling facility in King County

General Biodiesel, King County partner to collect used cooking oil so that it won’t clog pipes but will be given a second life as biodiesel fuel

Making plans for holiday dinners should include having a plan for dealing with the leftover cooking oil and kitchen grease. Pouring it down the drain will clog pipes and cause costly headaches. 

For the fourth consecutive year, King County and General Biodiesel have made proper disposal of used cooking oil easy. The partners have set up 15 easy-to-find locations throughout the county where used cooking oil and grease can be dropped off so that it can be recycled and given a second life as sustainable biodiesel fuel. 

Most locations are open 24 hours a day, seven days a week. 

King County’s Wastewater Treatment Division supports this effort in order to keep pipes free of this oily mess and provide a free recycling resource to all.

When they’re poured down the drain, fats, oils and greases, also known as “FOG,” clog and back up municipal and private pipes. 

Each year, thousands of taxpayer dollars are spent clearing public sewer lines that are blocked by FOG that shouldn’t have gone down the drain. Residents can spend hundreds more in costly emergency home plumber visits. 

Recycling this valuable resource is easy. Just collect the oil and grease from fryers, pots, and pans in a safe transport container before taking it to a recycling depot. 

Current locations in King County include: Auburn, Bellevue, Burien, Federal Way, Kirkland, Mercer Island, Renton, Sammamish, Seattle and Shoreline. For the full interactive map of all site locations and directions, visit:

More information on keeping our sewers “fat-free” is available at or by calling 206-684-1280 or 711-TTY. 

Residents enjoy clean water and a healthy environment because of King County's wastewater treatment program. The county’s Wastewater Treatment Division protects public health, the environment and the economy by serving 17 cities, 17 local sewer districts and more than 1.5 million residents in King, Snohomish and Pierce counties. Formerly called Metro, the regional clean-water agency now operated by King County has been preventing water pollution for nearly 50 years.


General Biodiesel is a Seattle-based renewable energy firm that aggregates, refines and transforms regionally generated sustainable feedstock into renewable fuel. The company’s mission is to be a leader in the renewable energy field. Generating Positive Energy™ reflects both what we produce and our commitment to making a meaningful and measurable contribution to the environment, people and communities we serve. For more information, visit

Note to editors and reporters: Visit the WTD Newsroom, a portal to information for the news media about the Wastewater Treatment Division, King County Department of Natural Resources and Parks: