Stormwater is a term used to describe water that originates during precipitation (rain or snow) events. Stormwater that does not soak into the ground becomes surface runoff, which either flows into surface waterways or is channeled into storm drains.
Stormwater pollution occurs when stormwater runoff comes in contact with contaminants before reaching the Pismo Creek or Pacific Ocean. Contaminants can be:
Storm Drain System
- Animal waste
- Automotive fluids
- Food processing waste
- Many more substances
The city's storm drain system is designed to route all untreated runoff from impervious surfaces including roofs, parking lots, roads, sidewalks, and other hardened surfaces to the Pismo Creek and to the Pacific Ocean. The system is supplied by storm drains, cross gutters, and surface swales that can be seen on city roads, parking lots, and freeways and highways.