PUBLICATIONS--Report: Storage of Low Level Radioactive Wastes in the Ground: Hydrogeologic and Hydrochemical Factors, by S. S. Papadopulos and I. J. Winograd--EPA-520/3-74-009 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY RESTON, VIRGINIA 22092 February 19, 1975 GROUND WATER BRANCH TECHNICAL MEMORANDUM NO. 75.12 Subject: PUBLICATIONS--Report: Storage of Low Level Radioactive Wastes in the Ground: Hydrogeologic and Hydrochemical Factors, by S. S. Papadopulos and I. J. Winograd-- EPA-520/3-74-009 The report should be called to the attention of persons involved in pollution studies, land use projects, modeling of flow in porous media, or mass transport in ground water. The subject report was prepared by the U.S. Geological Survey for the Office of Radiation Programs of the U.S. Environmental Protection Agency. Although the Geological Survey was furnished only a limited number of copies by EPA, we believe the report should be given wide distribution for the following reasons: 1. Although directed towards land burial of radioactive wastes, the criteria are applicable also to toxic wastes and, to a large degree, to all landfills. 2. The discussion of data required to model a site and predict waste movement shows that today's models can handle only simple geology and hydrology. 3. The brief review of the mathematical simulation of solute transport in hydrologic systems is quite current. 4. The report is a very logical analyses of an approach to landfill siting from the scientific point-of-view. (s) Leonard A. Wood Coordinator Subsurface Waste WRD Distribution: A, B (w/o attach.), FO-L (w/attach.)