Local Portland Resources for Urban Agriculture

• PortlandMaps to check for historic permits
• Oregon Department of Environmental Quality Environmental Cleanup Site Information database

Environmental Protection Agency

• Growing Gardens in Urban Soils guide gives a comprehensive overview and is an excellent place to start
• Eco-Tools for ecological land reuse is EPA's information clearinghouse
• ¿Cómo Crece Tu Jardín? a Spanish-language fact sheet for urban growing
• Cơ Quan Bảo Vệ Môi Sinh Hoa Kỳ - Tiếng Việt Vietnamese-language fact sheets on the environment

Taking a Good Soil Sample

• Oregon State University Extension Service soil sampling guide
• Purdue University Cooperative Extension soil sampling fact sheet