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1
DRASTIC : a standardized system for evaluating ground water pollution potential using hydrogeologic settings /
Ada, Oklahoma : Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1985

Government Document Book
2
Ground water manual : a guide for the investigation, development, and management of ground-water resources.
Denver, CO : Washington, DC : U.S. Dept. of the Interior, Bureau of Reclamation ; For sale by the Supt. of Docs., U.S. G.P.O., 1985

Government Document Book
3
Beneath the bottom line : agricultural approaches to reduce agrichemical contamination of groundwater /
Washington, D.C. : Office of Technology Assessment, Congress of the U.S. : For sale by the Supt. of Doc., U.S. G.P.O., 1990

Government Document Book
4
National water summary /
[Reston, Va.] : Washington, D.C. : U.S. Dept. of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. G.P.O., 1984

Government Document Serial
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