Date of Award
Master of Science
Water Resources Engineering
Thinning or localized breaches in an aquitard warrant concern as this limits the protection it affords to water supply aquifers underneath. The objective of this study was to assess the potential spatial configurations of breaches within the aquitard overlying the Memphis aquifer for the Sheahan well field in Memphis, Tennessee. A three-dimensional groundwater model was utilized to investigate leakage pathways into the well field when simulating five potential breach configurations under three different hydraulic conductivity values. Through particle tracking analysis, estimates for the modern water percentage and apparent age of the modern water extracted by the production wells at the well field were obtained and compared to published age-dating data. Breach configurations resembling a paleochannel, that could originate through erosional scarring within the aquitard, were found to be more likely to match the extent and magnitude of the presence of modern water around the well field supported by previous studies.
dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.
Torres Uribe, Hugo Enrique, "Application of a Numerical Groundwater Model to Determine the Spatial Configuration of Breaches Near a Municipal Well Field in Memphis, Tennessee" (2020). Electronic Theses and Dissertations. 2114.