Endangerment Assessment in a Multilayered Aquifer Using a Microcomputer Based Transport Modelby Tissa H. Illangasekare, Univ of Colorado, Boulder, CO, USA,
Dhamo S. Dhamotheran, Univ of Colorado, Boulder, CO, USA,
Andrea A. Karoff, Univ of Colorado, Boulder, CO, USA,
Gerald E. Ritter, Univ of Colorado, Boulder, CO, USA,
Abstract: An endangerment assessment describes the types and degrees of potential hazards to public health, welfare, or the environment that may result from the release of hazardous substances into an aquifer used for drinking water purposes. The transport of the contaminant is controlled by the dynamics of the flow of water, the dispersive processes occurring in the porous medium, the interaction of the chemical with the soil, and the other chemical and biological reactions occurring in the soil-water environment. Conceptually, mathematical models which are designed to simulate these transport and interaction processes could be used to predict the spatial and temporal distribution of contaminant. In the absence of all the needed data for the desired accuracy, a user devoted microcomputer with very small computational costs provides an ideal computing environment where a large number of such scenarios could be simulated. A model application study which uses a microcomputer based contaminant transport model is presented.
Subject Headings: Public health and safety | Hazardous materials | Aquifers | Water supply systems | Pollutants | Soil dynamics | Chemical processes | Computer models
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