GGSD Program Details for EPA-VHS

EPA-VHS

Category	Contaminant modelling
Publisher	International Ground Water Modeling Center
Platform	DOS
Status	Public domain
Description	EPA-VHS is a screening level model to predict maximum concentration of a pollutant at a prescribed distance downstream from a continuous source (at the compliance point). The model is based on an analytical solution for the transport of a conservative constituent in a homogeneous, isotropic aquifer with 1D horizontal, steady-state flow and dispersion perpendicular to the flow path. The model assumes zero retardation, a continuous input source, and saturated conditions. The program package contains two versions: 1) the modified EPA version as published in the Federal Register, 50 FR 48886, November 27, 1985; and 2) the original VHS model as published by Domenico and Palciauskas in Ground Water, Vol. 20, No. 3, pp. 301-311, 1982. Menu-driven with interactive data entry and editing. The program can be used with either metric or US customary units. Results are displayed on screen in tabular format.
Cost	US Dollars 50
Data formats supported	None stated
Supplier in United States of America	International Ground Water Modeling Center