Green Infrastructure Program
The City of Daly City is subject to the requirements of the Municipal Regional Stormwater National Pollutant Discharge Elimination System Permit (MRP). A section of the MRP requires the City to develop and implement a long-term Green Infrastructure (GI) Plan for the inclusion of GI measures into storm drain infrastructure on public and (sometimes) private property, including:
- Parking Lots
- Other Elements
GI uses vegetation, soils, and natural processes to manage stormwater runoff and create healthier urban environments. Examples of GI include landscape-based stormwater "biotreatment" using soil and plants ranging in size from:
- Grasses to trees
- Pervious paving systems (e.g., interlocking concrete pavers, porous asphalt, and pervious concrete)
- Tree wells with suspended pavement systems
- Other methods to capture and use stormwater as a resource
Scale of City / County
At the scale of a city or county, green infrastructure refers to the patchwork of natural areas that provides habitat, flood protection, cleaner air, and cleaner water. At the scale of a neighborhood or project site, green infrastructure refers to stormwater management systems and features that mimic nature by absorbing and storing water.
Green infrastructure provides many benefits such as improving water quality by removing trash and pollutants, reversing urbanization on local creeks and waterways, decreasing the chance of localized flooding, biodiversity and habitat preservation for native plants and animals, traffic calming, and overall enhancement of neighborhood aesthetics.