Cryptosporidium parvum is a common surface water contaminant that can cause illness in human beings. The presence of this etiological agent in groundwater identifies the groundwater as under the direct influence (GWUDI) of surface water. Currently the determination of GWUDI water sources requires an expensive, labor-intensive laboratory procedure called the Microscopic Particulate Analysis (MPA). The results of the MPA provide a risk index that rates the degree of surface water contamination. The objective of this study is to identify other methods of identifying GWUDI of surface waters, such as well characteristics and hydrogeologic factors which may contribute to higher MPA risk indices.
In order to determine which public water systems that are GWUDI, a total of sixty-two wells at water treatment systems suspected of being GWUDI were investigated. The wells sampled were distributed across seven counties in the Central Florida region. Water samples were collected and analyzed at the Department of Health Laboratory in Tampa, Florida using the MPA. The study also investigated the well characteristics and the hydrogeology of the well locations.
Nnadi, Fidelia N.
Master of Science (M.S.)
College of Engineering
Civil and Environmental Engineering
Water Resources Engineering
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Masters Thesis (Open Access)
Sharek, Robert Christopher, "Well Characteristics Influencing Microscopic Particulate Analysis Risk Index" (1998). Retrospective Theses and Dissertations. 2533.
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