Abstract
Slug and bailing tests were made on shallow monitoring wells constructed in saprolite at two sites in the North Carolina Piedmont. Calculations for hydraulic conductivity were made using several common methods, and the hydraulic conductivity obtained from the same data depended upon the calculation method used. For bailing tests, the Bouwer-Rice method provided the most consistent result internally, but no one method proved “best” for the slug tests. Bouwer-Rice calculations for both slug and bail tests gave consistently lower conductivities than other methods. Caution should be used in applying conductivities obtained from the Hvorslev method because only a single point value is obtained. It is recommended that several methods of calculating hydraulic conductivity be employed and that the ranges of values be examined and compared prior to choice of a single value for use in any remediation work. The geometric mean of the ranges of values is thought to be best for comparison between methods.
Published Version
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