Slide 101 of 119
Notes:
Wet swales intercept the groundwater, and behave almost like a linear wetland cell. The design incorporates a shallow permanent pool and wetland vegetation to provide stormwater treatment. This design also has potentially high pollutant removal. One disadvantage to the wet swale is that it cannot be used in residential or commercial settings because the shallow standing water in the swale is often viewed as a potential nuisance by homeowners. However, wet swales are ideal for treating highway runoff in low lying or flat terrain areas, where the water table is located very close to the surface.