Loop® biosolids
Turn your dirt around
The King County Biosolids Program oversees the production and distribution of Loop®, its brand name for the nutrient-rich organic product created during the County’s wastewater treatment process. Loop is a natural soil builder and endlessly renewable resource that returns carbon and nutrients to the land. Loop enhances soil biology and helps it hold water. Simply put, it is good stuff that builds good soil.
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Compost made with Loop
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For more information about Loop biosolids, please contact us at:
- loop@kingcounty.gov
- 201 S. Jackson Street, KSC-NR-0512, Seattle, WA 98104
- 206-477-5557