Stormwater Requirements

Stormwater Pollution Prevention


Everywhere in the West Valley, storm drains carry water from streets and yards to local creeks and on to the San Francisco Bay - without wastewater treatment. Stormwater pollution occurs when pollutants accumulate on streets or other surfaces and are washed off by rainfall or water. The pollutants flow into storm drains, then directly into creeks and on to the Bay. Residents may contribute to stormwater pollution through regular everyday activities like driving and gardening. Commercial and industrial activities can also be sources of pollution.

Stormwater pollution is an important issue because it reduces water quality and affects the health of local creeks and San Francisco Bay. 

Reporting Violations


Report storm drain violations and illegal dumping online, such as someone pouring substances into the storm drain. Or call:
  • City of Saratoga Public Works Department: 408.868.1258
  • West Valley Clean Water Program: 408.354.5385
More information can be found on the West Valley Clean Water Program website.

Requirements for Development


Conditions of approval for development projects include the installation and maintenance of Best Management Practices (BMP's) for site design and storm water treatment, which must be designed per approved numeric sizing criteria. General guidance on the selection and implementation of BMP's and Storm Water Pollution Prevention Plans can be found on the California Storm Water Quality Association website and at the Santa Clara Urban Runoff Pollution Prevention Program website.

C3 Forms for Development Projects


Applicants with questions about stormwater regulations can contact Public Works staff.

Information Handouts

Additional Information