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Biosolids Recycling

Twice recognized as the best operating biosolids program in the country, King County recycles a high-quality biosolids that benefits soils and crops in eastern and western Washington.

King County is among the first agencies certified into the Environmental Management System for biosolids and awarded the National Biosolids Partnership seal of approval.

Environmental Management System

 national biosolids partnership EMSlogo
King County's biosolids program is used as a model throughout the nation and has won numerous awards for its innovative and environmentally sensitive operations. Best management practices, developed in conjunction with the University of Washington and Washington State University, protect both public health and the environment.

New!

Biosolids, the Ultimate in Recycling! is a 2 x 3 foot poster that chronicles the journey of biosolids from urban areas to forests and farms. General information on soil and biosolids, teacher friendly biosolids related exercises, and resources are located on the reverse side of the poster. 

Biosolids, The Ultimate in Recycling! is used in "Seeking Solutions," the Mountains to Sound Greenway education program for schools, and was created in partnership with King County Wastewater Treatment Division.

Biosolids Poster front (1MB pdf)
Biosolids Poster back (2MB pdf)


2006 Biosolids Program Summary(pdf) 2006 Biosolids Quality Summary (pdf)



Biosolids Recycling Brochure (pdf)
Green Globe Awards

King County Biosolids Projects/Partnerships

Links to Related Web Sites

For questions about biosolids recycling or this website, please use 'comments' link below or contact:

Technology Assessment and Resource Recovery
201 S. Jackson Street
Mail Stop: KSC-NR-0512
Seattle, WA 98104
Phone: (206) 684-1255
 Fax: (206) 684-2057

Updated: September 24, 2007

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