AbstractRecent interest in ground‐water contamination problems has led to a renewed interest in the development of accurate procedures for the analysis of in situ permeability tests. The present study involves the derivation of analytical procedures for slug tests and constant head tests performed in wells with casings open at the bottom and installed flush with the upper confining boundary of a finite‐depth, anisotropic, homogeneous aquifer; the analysis takes into account the effects of a finite‐thickness skin located at the casing bottom. The Laplace transform is used on the governing ground‐water flow equations to derive the transform of time‐dependent water levels measured in the casing. The expression is numerically inverted back into the real time domain to obtain (1) a set of dimensionless type curves for analyzing slug test data, and (2) a relation between the inflow rate, the head maintained in the well, the hydraulic conductivity, and a shape factor expression for the analysis of constant head data. Existing methods of analysis are reviewed and compared with the presently derived analytical p
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