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Title:Undistributed core method for determining and evaluating the hydraulic conductivity of unsaturated sediments
Author(s):Elzeftawy, Atef; Cartwright, Keros
Contributor(s):Illinois State Geological Survey; Engelhart, Julie
Water resource development
Water resource development--Illinois
Unsaturated hydraulic conductivity
Soil water
Matching factor
Soil water potential
Water retention
Abstract:This paper describes a new method developed to predict the transport of moisture and contaminants in soils. Study results indicate that this method could help simplify evaluation of municipal and industrial waste disposal sites for their potential environmental impact. Saturated and unsaturated hydraulic conductivities of several Illinois soils, calculated on the basis of pore size distribution, were shown to predict reliably the experimentally measured laboratory valhes. For coarse-textured soil materials and materials with a relatively narrow range of pore size, only one matching factor was required to calculate the hydraulic conductivity-water content relation accurately enough for many purposes; however, for finetextured soil materials with a wide range of pore size distribution, two or more matching factors at a water content in the 0.3 to 0.4 bar range may be needed to obtain a useful evaluation for the unsaturated hydraulic conductivity.
Issue Date:1983-04-01
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Sponsor:U.S. Department of the Interior
U.S. Geological Survey
Rights Information:Copyright 1983 Atef Elzeftawy, Keros Cartwright
Date Available in IDEALS:2016-09-28

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