Who makes Loop®?

King County

King County Wastewater Treatment Division cleans all the water that goes down drains from homes and business and creates three recycled resources: biosolids, recycled water and biogas (renewable energy). Biosolids produced by King County are called Loop. Loop is an endlessly renewable fertilizer replacement and soil builder that grows healthy and lush crops and forests.

For more information visit the King County Loop Biosolids Program or schedule a tour of a wastewater treatment plant.