Plots were 1000 feet long by 50 feet wide. The strips of darker green plants due to biosolids was visible from nearby roads. Compost and Turf Demonstrations Scientists at the Washington State University Research and Extension Center in Puyallup have created a compost demonstration garden and conducted research on pasture grass and turf grass production using a variety of biosolids products. A collaborative research effort in Kellogg, Idaho, is testing ways to restore vegetation to severely contaminated and eroding hillside soils and reduce the toxicity of wetland soils on this former mine and smelter site. Partners include the US Environmental Protection Agency, US Department of Agriculture's Agriculture Research Service, University of Washington, University of Idaho and the Northwest Biosolids Management Association.
Initial results show good remediation potential.
Since 1989, the Northwest Biosolids Management Association has coordinated collaborative research in the region. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site.