Biosolids/Twenty Mile South Farm
The city of Boise owns a 4000-acre farm on South Cloverdale Road. Known as the "Twenty-Mile South Farm", the farm receives the "biosolids" from the City's two main wastewater treatment plants.
The treated biosolids are one of two end products of wastewater treatment that can be recycled as soil supplements. The other product is water. The water is treated and released into the Boise River.
The biosolids are trucked to the farm four times a day in trailers holding approximately 25 tons per load. The biosolids are applied to the fields for growing crops that are eventually sold to farmers for silage and food for livestock. The crops are primarily alfalfa, corn, and small grains. The farm is managed to comply with state and federal regulations governing the reuse of biosolids.