What is Stormwater?
Stormwater runoff is rainfall that has fallen onto hardened surfaces, such as streets, roofs, and driveways, picked up the various pollutants that are on those surfaces, and carried the pollutants into the storm drain and stream systems. Those pollutants include, but are not limited to, oil, fertilizers, bacteria, heavy metals, gasoline, and sediment. A great stormwater control measure in highly urbanized areas, such as San Antonio, is low impact development.
DID YOU KNOW: In San Antonio, stormwater does not drain into a sanitary sewer system. It flows directly into our creeks and rivers.
What is Low Impact Development?
Low Impact Development (LID) is a sustainable land planning and engineering design approach to managing stormwater runoff as close as possible to the source.
LID design features
- Emphasize the use of on-site natural drainage features
- Maintain or enhance the site’s hydrologic characteristics after development
- Reduce overall imperviousness
- Polish stormwater for quality.
What Can I Do?
This table highlights some simple and easy solutions for helping protect the San Antonio River watershed.