aquifer systems / gas chromatography / Map showing regional aquifer systems / fractured-rock regional aquifer systems / minute gas chromatography / chemical constituents / selected chemical constituents / /
NaturalFeature
State University Valley / /
Organization
U.S. Department of the Interior U.S. Geological Survey Aquifer Susceptibility / Federal Center Denver / U.S. Government / U.S. Environmental Protection Agency / Department of Health office of Drinking Water Cover / International Atomic Energy Agency / Department of Health / Department of Health office of Drinking Water Richmond / U.S. DEPARTMENT OF THE INTERIOR / /
Person
George E. Harlow / Jr. / David L. Nelms / Virginia Aquifer Susceptibility / L. Niel Plummer / Virginia Polytechnic / Charles G. Groat / /
Position
Chief U.S. Geological Survey / Director The use / Secretary U.S. GEOLOGICAL SURVEY / /
U.S. Department of the Interior U.S. Geological Survey Aquifer Susceptibility in Virginia, Water-Resources Investigations Report