Northwest Biosolids Management Association

National Biosolids Partnership

Washington State Department of Ecology Biosolids Program

Biosolids Management Guidelines for Washington State
Managing Nitrogen From Biosolids - Technical Support Document

Environmental Protection Agency - Biosolids

Plain English Guide to the EPA Part 503 Biosolids Rule
A Guide to the Biosolids Risk Assessments for the EPA Part 503 Biosolids Rule
EPA Region 8 Biosolids Management Program

New England Biosolids and Residuals Management Association

Water Environment Federation

Biosolids Information

Pennsylvania Dept. of Environmental Protection

Yard and Garden
Soils and Composting
Agriculture
Forestry

University
Links
(external)

University of Washington

College of Forest Resources

Washington State University

Organic Nutrient Management, Puyallup
Gardening in Western Washington
Biosolids information page

Oregon State University - Soil Extension Program

Biosolids Recycling in Oregon (pdf)
Fertilizing with Biosolids (pdf)
Dryland Wheat Response to Biosolids