Stormwater Detention Ponds: An Evaluation Using Frequency Distributions for Detention Times
Detention ponds are used to manage both the peak discharges and pollutant loads in runoff waters. To assess the effectiveness of detention ponds, time conduming and costly field sampling can be done. However, an alternative means of assessment is proposed. It is detention time, which may be a prediction method to assist in the determination of the pollution removal efficiency of a detention pond. Detention time is commonly calculated by dividing the pond volume by the outflow rate. Using detention time frequency distributions, comparisons are made for two existing pond design criteria and four proposed pond design criteria. These detention time frequency distributions are compared with frequency distributions for time between outflow events. The time between outflow events is the time from the start of pond outflow to the start of outflow from the next rainfall event. The object is to determine a detention pond design for which the frequency distribution for detention time is about equal to the frequency distribution for time between outflow events. This study was limited to two sites located in the central Florida area, namely a residential and a commercial site. Using Departrnent of Environmental Regulation design criteria, detention time frequency distribution approximates the time between storms.
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Wanielista, Martin P.
Master of Science (M.S.)
College of Engineering
Civil Engineering and Environmental Sciences
Length of Campus-only Access
Masters Thesis (Open Access)
Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic
Stutler, Denver Joe, "Stormwater Detention Ponds: An Evaluation Using Frequency Distributions for Detention Times" (1989). Retrospective Theses and Dissertations. 4232.