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Infiltration basin

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Title: Infiltration basin  
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Subject: Stormwater detention vault, Percolation trench, Level spreader, Dry well, Wastewater treatment
Collection: Environmental Engineering, Hydrology, Infrastructure, Physical Infrastructure, Stormwater Management
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Infiltration basin

Infiltration Basin

An infiltration basin (also known as a recharge basin or in some areas, a sump[1]), is a type of best management practice (BMP) that is used to manage stormwater runoff, prevent flooding and downstream erosion, and improve water quality in an adjacent river, stream, lake or bay. It is essentially a shallow artificial pond that is designed to infiltrate stormwater though permeable soils into the groundwater aquifer. Infiltration basins do not release water except by infiltration, evaporation or emergency overflow during flood conditions.[2][3][4]

It is distinguished from a detention basin, sometimes called a dry pond, which is designed to discharge to a downstream water body (although it may incidentally infiltrate some of its volume to groundwater); and from a retention basin, which is designed to include a permanent pool of water.

Contents

  • Design Considerations 1
  • See also 2
  • References 3
  • External links 4

Design Considerations

Infiltration basins must be carefully designed to infiltrate the soil on a given site, at a rate that will not cause flooding. They have been less effective in areas with:

  • high groundwater levels, close to the infiltrating surface;
  • compacted soils;
  • high levels of sediment in stormwater; or
  • high clay soil content.[5]

At some sites infiltration basins have worked effectively where the installation also includes an extended

  • Stormwater management Tools:
    • Model for Urban Stormwater Improvement Conceptualisation (MUSIC)
  • Maryland Stormwater Design Manual - See Section 3.3 for Infiltration Feasibility Criteria & Design Diagrams
  • International Stormwater BMP Database - Performance Data on Urban Stormwater Best Management Practices

External links

  1. ^
  2. ^ http://ianrpubs.unl.edu/live/ec701/build/ec701.pdf "Stormwater Management: Terminology" 2011. University of Nebraska Extension Circular
  3. ^ New Jersey Department of Environmental Protection. Trenton, NJ."New Jersey Stormwater Best Management Practices Manual." Chapter 9.5: Standard for Infiltration Basins. April 2004.
  4. ^ U.S. Environmental Protection Agency. Washington, D.C. "Preliminary Data Summary of Urban Storm Water Best Management Practices." Chapter 5. August 1999. Document No. EPA-821-R-99-012.
  5. ^ Water Environment Federation, Alexandria, VA; and American Society of Civil Engineers, Reston, VA. "Urban Runoff Quality Management." WEF Manual of Practice No. 23; ASCE Manual and Report on Engineering Practice No. 87. 1998. ISBN 1-57278-039-8. Chapter 5.
  6. ^ U.S. EPA. "National Menu of Stormwater Best Management Practices: Infiltration Basin."
  7. ^ Atlanta Regional Commission. Atlanta, GA. "Georgia Stormwater Manual: Volume 2." Page 3.1-5. 2001.

References

See also

[7]

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