The Northern Virginia Soil and Water Conservation District can provide general information on soils found in Fairfax County. This information is from the Soil Survey conducted by the USDA Soil Conservation Service in 1963 and the Fairfax County Soil Survey update of 1990. While this information is valid, it is based on a broad survey of the county. If you have a concern that necessitates a site-specific analysis, consider hiring a geotechnical consultant. * indicates required information
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