Rain gardens are shallow depressions in the landscape that typically include plants and a mulch layer or ground cover. In addition to providing increased groundwater recharge, they are expected to provide pollutant treatment. Rain gardens can be used in residential settings to accept runoff from a roof or other impervious surface. In a commercial setting, bioretention areas are similar to rain gardens, but are often larger, and have an engineered design.
Funded in part by the Connecticut Department of Energy and Environmental Protection through a
United States Environmental Protection Agency Clean Water Act Section 319 Nonpoint Source Grant.