Shared detention systems that are publicly owned and maintained are proposed to control both the quantity of storm water and the quality. These detention basins will act as primary treatment removing trash and a majority of the silt. The shared detention basins will be approximately 8 - 9 acres of flat land that is dry most of the time so they can be used for sports fields. This strategy differs from the current policy that requires new developments to construct and maintain individual detention systems on each site. Water will be carried from these basins to regional retention facilities or lakes by riparian greenways.