The University of Massachusetts Amherst
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Coliform transport in a pristine reservoir: Modeling and field studies

TitleColiform transport in a pristine reservoir: Modeling and field studies
Publication TypeJournal Article
Year of Publication1998
AuthorsGarvey E, Tobiason JE, Hayes M, Wolfram E, Reckhow DA, Male JW
JournalWater Science & Technology
Start Page137
Keywordscoliform decay, Coliform fate and transport, hydrodynamic modeling, water currents, water quality modeling

This paper reports on field studies and model development aimed at understanding coliform fate and transport in the Quabbin Reservoir, an ofgotrophic drinking water supply reservoir. An investigation of reservoir currents suggested the importance of wind driven phenomena, and that both lateral and vertical circulation patterns exist. In-situ experiments of coliform decay suggested dependence on light intensity and yielded an appropriate decay coefficient to be used in CE-QUAL-W2, a two-dimensional hydrodynamic and water quality model. Modeling confirmed the sensitivity of reservoir outlet concentration to vertical variability within the reservoir, meteorological conditions, and location of coliform source.