Assessing Seepage at Uncontrolled Hazardous Waste Sites

by Brad J. Berggren, CH2M Hill, Milwaukee, WI, USA,
Lawrence A. Holm, CH2M Hill, Milwaukee, WI, USA,
James R. Schneider, CH2M Hill, Milwaukee, WI, USA,



Document Type: Proceeding Paper

Part of: Seepage and Leakage from Dams and Impoundments

Abstract: This paper presents a conceptual framework for estimating the concentration of organic contaminants in a groundwater plume over time. The basis of this framework is the application of adsorption-desorption principles together with chemical mass-balance considerations for organic contaminant depletion. The approach considers the concentration of organic contaminants in the partially saturated soil above the groundwater level, as well as contaminants already in the groundwater at startup of extraction. The approach is meant for use in a pragmatic manner, as an aid to considered judgment; it is not proposed as a strict analytical model.

Subject Headings: Occupational safety | Pollutants | Waste sites | Hazardous materials | Groundwater pollution | Frames | Plumes

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