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Simulation of Contaminant Migration Under Conditions of Declining Ground Water Levels

by Kit Yin Ng, Bechtel Corp, San Francisco, United States,
Angelos N. Findikakis, Bechtel Corp, San Francisco, United States,
Jing-Yea Yang, Bechtel Corp, San Francisco, United States,



Document Type: Proceeding Paper

Part of: Engineering Hydrology

Abstract:

A ground water flow and transport model was developed to simulate the migration of contaminants originating from an industrial site. The development and calibration of the model were based on data collected from the field investigation and monitoring activities which were part of a restoration program for the site. Contaminant migration patterns at the site were complicated by the regional decline of the ground water table which led to dewatering of the uppermost aquifer zone. The model was used to simulate this condition, as well as to evaluate the hypothesis of potential interconnection and existence of pathways between different aquifer zones. The transport model was calibrated by simulating the historical migration of contaminants since the beginning of plant operations. The model was subsequently used to simulate and evaluate the effectiveness of alternative ground water extraction remedial schemes. The simulations were conducted with the Princeton Transport Code, a three-dimensional, ground water flow and transport model.

Subject Headings: Groundwater flow | Contaminant transport | Groundwater pollution | Simulation models | Three-dimensional models | Water supply systems | Flow simulation

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