Simulated Water-Quality Changes in Detention Basinsby Phillip J. Zarriello, US Geological Survey, United States,
Abstract: A study has begun to simulate movement of stormflow through detention basins at four locations in the Irondequoit Creek watershed and determine the effect on peak flow and water quality. Two types of basins were simulated for each site - a temporary-storage basin, which impounds water during high flows, and a maximum-storage basin, which maintains a permanent pool of water. This paper describes the simulated stormflow attenuation and suspended-sediment removal by both types of basins at the four sites. It also examines the effect of particle-size distribution on sediment removal in both types of basins; the relation of suspended-sediment loads to adsorbed phosphorus, lead, and zinc loads; and the effect that these basins could have on the transport of suspended constituents to Irondequoit Bay, to which Irondequoit Creek is the only large tributary.
Subject Headings: Flow simulation | Water quality | Retention basins | Basins | Water storage | Water flow | Water pollution | Detention basins
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