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Groundwater Mounding Beneath Stormwater Infiltration Basins

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2007 ASAE Annual Meeting  072026.(doi:10.13031/2013.23367)
Authors:   Mike Alan Nimmer, Anita M Thompson, Debasmita Misra
Keywords:   Infiltration, infiltration basin, stormwater, groundwater, mounding

Increased impervious areas resulting from urbanization cause an increase in stormwater runoff and a decrease in infiltration to the groundwater table. Infiltration basins are often required to recharge a portion of the pre-development infiltration volume. The localized recharge by these relatively small basins can cause a groundwater mound to form below the basin. Mound formation is important as it may reduce the ability of the soil to filter pollutants, and may reduce the infiltration rate of the basin. Therefore, an accurate understanding of groundwater mound formation is important in the proper design of infiltration basins.

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