A Physically Based Conceptual Model for Simulating Contaminant Levels in Subsurface Water

by Miguel A. Mejia, Univ of California, Davis, United States,
Mohamed M. Hantush, Univ of California, Davis, United States,
Miguel A. Mari?o, Univ of California, Davis, United States,

Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems


A conceptual physical model is developed to simulate solute transport and mixing in the vadose (unsaturated) and groundwater zones. The conceptual model couples lumped-parameters models that simulate leaching through the unsaturated zone with a model that simulates two-dimensional transport in the aquifer. The model accounts for important physical and chemical processes such as volatization, evapotranspiration, adsorption, decay rate, advection, and dispersion. The model only requires a small amount of data and does not demand excessive resources of time and budget. Results based on sensitivity analysis and application to real data are shown.

Subject Headings: Simulation models | Two-dimensional models | Physical models | Mathematical models | Groundwater pollution | Sensitivity analysis | Chemical processes

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