Fairfax County offers an online description and rating for soil types. The ratings are useful in determining the general suitability for development on particular soils in an urban area. Information is also available on asbestos, radon, and soil erosion. See also Dumping, Filling.
- 2011 Official Soils Map (Digital Map Viewer) - Use for all plan submissions and building permit applications.
- Physiographic Provinces of Fairfax County
- 2011 Ratings