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3DFATMIC simulates subsurface flow, transport, and fate of contaminants which are undergoing chemical and/or biological transformations. The model is applicable to transient conditions in both saturated and unsaturated zones. The flow module is a Galerkin finite element solution of Richard's equation. The transport module is a hybrid Lagrangian-Eulerian approach with an adapted zooming and peak capturing algorithm. This model can almost eliminate spurious oscillation, numerical dispersion, and peak clipping due to advective transport.


Version 1.0
Release Date August 1997
Development Status general release
Development Information  
Operating System UNIX, DOS
Development Language  
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Source Code (G-Zip)(147 KB, About G-ZipExit EPA disclaimer)

Input and Output Data Sets (G-Zip)(1.8 MB, About G-ZipExit EPA disclaimer)

US EPA. (1997) 3DFATMIC, Three-Dimensional Subsurface Flow, Fate, and Transport of Microbes and Chemical Model – User's Manual, Version 1.0 Publication No. EPA/600/R-97/053.

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