Degree Name

MS (Master of Science)

Program

Geosciences

Date of Award

5-2020

Committee Chair or Co-Chairs

Ingrid Luffman

Committee Members

Andrew Joyner, Kurt Maier

Abstract

Escherichia coli changes in Sinking Creek, an impaired water body in the Watauga watershed of northeast Tennessee, were assessed during storm events using water samples collected with ISCO automated samplers during eight storms at two locations. Turbidity and electrical conductivity (EC) data loggers were deployed in the creek, and dissolved oxygen (DO) was measured in situ to test the stream’s water quality and reaction to inclement weather. Cotton fabric was deployed at both locations and sent to an external lab to test for the presence of Optical Brighteners (OB), which are indicators of residential wastewater. E. coli and turbidity at the creek generally increased within 2.5 hours of a rain event, remaining above the single sample standard for several hours during the storm. At the spring, E. coli became elevated within 30 minutes of precipitation onset, but generally decreased below the standard during the event.

Document Type

Thesis - embargo

Copyright

Copyright by the authors.

Available for download on Wednesday, April 03, 2024

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