A resource guide for planning, designing and maintaining a beautiful rain garden.
If you live in Nashville, much of the land around you has been covered with roads, parking lots and buildings. Rain water that falls onto these hard surfaces becomes runoff that flows across paved areas warming and collecting contaminants, such as oil, pesticides and pet waste, along its way. This warm polluted water flows into storm water sewer systems eventually entering streams. Even worse, in some older areas of the city with combined storm water and sewage pipes, runoff can combine with raw sewage during heavy rains. If the volume of this combined sewage is too great it can overflow untreated into our rivers. All this runoff puts a heavy burden on our streams and leads to flooding, erosion and habitat loss. This costs our city extra money in water treatment and repairs.