Electronic Theses and Dissertations

Identifier

6618

Date

2020

Document Type

Thesis

Degree Name

Master of Science

Major

Civil Engineering

Concentration

Water Resources Engineering

Committee Chair

Brian Waldron

Committee Member

Daniel Larsen

Committee Member

Scott Shoefernacker

Abstract

The limitation of field measurements leads to parameter non-uniqueness of numerical models, which can be addressed by including more parameter data. Six pumping tests were conducted in five municipal well fields within Shelby County following the procedure described in the ASTM D4050-14 and considering strengthening factors to achieve greater reliability. Drawdown data of the pumping tests was analyzed using AQTESOLV, which allowed accounting for partial penetration and interference from neighboring production wells. The values of transmissivity and storativity estimated have a combined range of 600 to 3100 m2/day and 0.0005 to 0.002, respectively, varying within one order of magnitude on each well field. The average quality score of the tests, of 8.7 was higher than the average score of previous records of 4.1. The parameter values determined are expected to reduce non-uniqueness of numerical modeling solutions for groundwater flow, leading to improved evaluation of groundwater resources and environmental impact assessments.

Comments

Data is provided by the student.

Library Comment

Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.

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