stormwater treatment train

The stormwater treatment train consists of a stormwater interceptor, infiltration basin, rain gardens, bioswales and pervious pavement. Stormwater enters the landscape through a limestone boulder sediment trap that slows water and controls erosion. It moves across the native prairie restoration into infiltration basins planted with native grasses (root structures host organisms that feed on suspended pollutants). The basins have valves to regulate the system when plants are being established or for longer detention during storm events. Native species encourage additional infiltration with a lower runoff coefficient. Simple farm terraces throughout the state inspired the process of water movement across the landscape while moderating steep site slopes. Inside, a simple and replicable strategy. [2]

From a site perspective, 100+% of the average annual rainfall event that falls upon the site is infiltrated and treated, along with the diverted adjacent site stormwater. The resulting native prairie landscape is an integral part in the stormwater management system employed on site; it purifies water using native plants for increased downstream water quality and eliminates the need for irrigation. [2]