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LEED Green Associate

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One of the strategies for controlling and reducing storm water runoff includes to direct runoff into dry ponds, rain gardens, bioswales, and similar landscaping features designed to hold water and slow to rate of runoff. Bioswales are a:

Natural infiltration device to limit the extent of impervious surface area
Hydrolic net compound to capture soil erosion and sedimentation
Trough drainage course with sloped sides filled with vegetation and/or compost
Pavement grid with inset of organic materials

Explanation

Answer - C - Bioswales are trough drainage courses with sloped sides filled with vegetation and/or compost designed to remove silt and pollution from surface runoff water. Depending upon the geometry of land available, a bioswale may have a meandering or almost straight channel alignment. Biological factors also contribute to the breakdown of certain pollutants.

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