Date of Award
Master of Science
Water Resources Engineering
Claudio Ivan Meier
Groundwater from the Memphis aquifer is the primary source of drinking water in Shelby County, Tennessee. The Memphis aquifer is overlain and confined by the Jackson-upper Claiborne confining unit, which separates the shallow and Memphis aquifers throughout most of the county. However, there are areas where the confining unit is thin or absent, creating windows that allow water to flow from the shallow, unconfined aquifer, recharging the confined Memphis aquifer. A water-table map of the shallow aquifer and the unconfined portion of the Memphis aquifer in Shelby County was created using water-level data collected during October 2015, including groundwater elevations from 122 wells, surface water elevations from 55 bridge crossings, and historical groundwater elevations from 62 wells measured within the last five years (2010-2015). The water-table map was developed using GIS tools and contouring methods, and compared to previous maps completed in 1988 and 2005. Comparison with the previous maps highlights changes in water-table elevations as well as anomalous depressions in the water table that would signify absence of the confining unit and a potential window location.
dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.
Ogletree, Benjamin Tanner, "Geostatistical Analysis of the Water Table Aquifer in Shelby County, Tennessee" (2017). Electronic Theses and Dissertations. 1634.