FEMWATER/LEWASTE: Numerical Codes for Delineating Wellhead Protection Areas in Agricultural Regions Based on the Assimilative Capacity Criterion

DESCRIPTION

The FEMWATER model is designed to provide a numerical procedure for establishing wellhead protection zones (in agricultural areas) using the assimilative capacity criterion. FEMWATER is a three-dimensional variably saturated zone model that models contaminant movement in heterogeneous and anisotropic media consisting of many geologic formations as desired, considers both distributed and point sources/sinks that are spatially and temporally dependent, and accept four types of boundary conditions. The model is intended to be used to delineate wellhead protection zones based on concentrations at various wellhead points.

Input and output are through files.

Keywords

description: groundwater flow, groundwater pollution, finite element method
objectives: simulation
application: generic aquifer, first-order pollutant decay, transient or stationary conditions.

SOFTWARE AVAILABILITY

Center for Exposure Assessment Modeling (CEAM)
U.S. Environmental Protection Agency
Office of Research and Development
Environmental Research Laboratory
960 College Station Road
Athens, Georgia 30605-2720
Tel. 706/546-3549

Back to list of ground water models