This study evaluates the performance of a [Bioretention]] system that treats runoff from a commercial parking lot (Earth Rangers, located in Vaughan, ON.). Key parameters examined include runoff volumes, runoff reduction, surface ponding and infiltration, water quality, surface soil and effluent water temperatures, soil moisture and operation and maintenance requirements. Results show that bioretention systems can significantly improve the management of stormwater runoff from parking lots and other small drainage areas relative to conventional treatment practices. Runoff volumes were reduced by over 90% and the mass of pollutants discharged from the facility was between 65 and 92% less than that discharged from a nearby asphalt pavement. To read more about these results and the various operation and maintenance requirements of these LID features click the button above. | This study evaluates the performance of a [Bioretention]] system that treats runoff from a commercial parking lot (Earth Rangers, located in Vaughan, ON.). Key parameters examined include runoff volumes, runoff reduction, surface ponding and infiltration, water quality, surface soil and effluent water temperatures, soil moisture and operation and maintenance requirements. Results show that bioretention systems can significantly improve the management of stormwater runoff from parking lots and other small drainage areas relative to conventional treatment practices. Runoff volumes were reduced by over 90% and the mass of pollutants discharged from the facility was between 65 and 92% less than that discharged from a nearby asphalt pavement. To read more about these results and the various operation and maintenance requirements of these LID features click the button above. |