Va. Code Ann. § 23.1-2615

For the purpose of continuing a survey of the soils of the Commonwealth that was begun by the U.S. Department of Agriculture, the Station shall direct and supervise a comprehensive soil survey of the Commonwealth of such a character and along such lines as to obtain an inventory of the soil resources of the Commonwealth and to determine their adaptability to various crops, forestry, and livestock enterprises to promote the utilization of the lands of the Commonwealth in the most practical and economical way. It is contemplated that the Station will make such soil survey in cooperation with the U.S. Department of Agriculture.