Modeling Coal Pile Leachate - A Case Study

by Gail G. Crosbie, Pennsylvania Power & Light Co, Allentown, PA, USA,
Gerard P. Lennon, Pennsylvania Power & Light Co, Allentown, PA, USA,



Document Type: Proceeding Paper

Part of: Engineering Hydrology

Abstract:

Ground water transport of coal leachate from an existing unlined coal storage pile was modeled using the USGS 'Computer Model of Two-Dimensional Solute Transport and Dispersion in Ground Water. ' Flow calibration was obtained by varying head, transmissivity and recharge. Solute transport modeling achieved a good match with some observed contaminant levels. Simulated results point to unlined runoff collection ponds as major potential sources of ground water contamination. The model proved useful in defining gaps and inconsistencies in the existing data base. More data from and near these sources would help determine the validity of the results.

Subject Headings: Freight transportation | Coal | Groundwater flow | Water storage | Water pollution | Two-dimensional models | Case studies

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