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Direct‐Push Hydrostratigraphic Profiling: Coupling Electrical Logging and Slug Tests
Author(s) -
Sellwood Stephen M.,
Healey John M.,
Birk Steffen,
Butler James J.
Publication year - 2005
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.2005.tb02282.x
Subject(s) - slug test , hydraulic conductivity , profiling (computer programming) , soil science , environmental science , geology , remote sensing , logging , conductivity , hydrology (agriculture) , geotechnical engineering , computer science , soil water , chemistry , ecology , biology , operating system
Abstract Spatial variations in hydraulic conductivity (K) can significantly affect the transport of contaminants in ground water. Conventional field methods, however, rarely provide a description of these variations at the level of detail necessary for reliable transport predictions and effective remediation designs. A direct‐push (DP) method, hydrostrati‐graphic profiling, has been developed to characterize the spatial variability of both electrical conductivity (EC) and hydraulic conductivity in unconsolidated formations in a cost‐effective manner. This method couples a dual‐rod approach for performing slug tests in DP equipment with high‐resolution EC logging. The method was evaluated at an extensively studied site in the Kansas River floodplain. A series of profiles was performed on a surface grid, resulting in a detailed depiction of the three‐dimensional distribution of EC and K. Good agreement was found between K estimates obtained from this approach and those obtained using other methods. The results of the field evaluation indicate that DP hydrostratigraphic profiling is a promising method for obtaining detailed information about spatial variations in subsurface properties without the need for permanent wells.