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Main Title Performance and analysis of aquifer tracer tests with implications for contaminant transport modeling /
Author Molz, Fred J. ; Keely, Joseph F. ; Gueven, O. ; Melville, J. G.
Other Authors
Author Title of a Work
Molz, Fred J.
CORP Author United States. Environmental Protection Agency.; Robert S. Kerr Environmental Research Laboratory.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1986
Report Number EPA/600/2-86/062; EPA-R-810704
Stock Number PB86-219086
OCLC Number 15043014
Subjects Groundwater--Pollution--United States ; Aquifers--United States
Additional Subjects Water quality ; Ground water ; Sediment transport ; Water pollution ; Aquifers ; Mathematical models ; Two dimensional flow ; Plumes ; Hydraulic conductivity ; Dispersions ; Depth ; Tracer studies
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJED  EPA/600/2-86-062 OCSPP Chemical Library/Washington,DC 01/01/1988
ELBD ARCHIVE EPA/600/2-86/062 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-2-86-062 AWBERC Library/Cincinnati,OH 01/01/1988
EMAM  EPA 600/2-86/062 Region 6 Library/Dallas,TX 06/05/2018
EMBD  EPA/600/2-86/062 NRMRL/GWERD Library/Ada,OK 09/29/1995
ERAD  EPA 600/2-86-062 Region 9 Library/San Francisco,CA 10/09/2012
ESAD  EPA 600-2-86-062 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB86-219086 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xii, 88 pages : illustrations ; 28 cm
The scale-dependence of dispersivity values used in contaminant transport models to estimate the spreading of contaminant plumes by hydrodynamic dispersion processes was investigated and found to be an artifact of conventional modeling approaches (especially, vertically averaged parameters in two-dimensional plume simulations). The work reported here shows that variations in hydraulic conductivity with depth result in significant variations in ground-water flow and contaminant transport velocities; it is the resulting velocity variations that, if vertically averaged, give rise to apparant scale-dependency of dispersion. Special depth-selective observation well designs are recommended by the authors for use in tracer tests, so that detailed estimates of the variations in hydraulic conductivity and flow and transport velocities can be obtained.
Distributed to depository libraries in microfiche. "July 1986." "EPA/600/2-86/062." "Funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CR-81074 to Auburn University"--Page ii. Includes bibliographical references (pages 86-88).