Welcome to the North Bay Watershed Association

The North Bay Watershed Association is a group of diverse regional and local public agencies throughout the North Bay region working to craft regional approaches to managing our common watershed.

Association members work cooperatively on water resources issues and go beyond traditional boundaries to promote good stewardship of the North Bay watersheds – watersheds that drain 850 square miles of eastern Marin County, Sonoma County, southern Napa county, and portions of Solano County.

If you would like more information about the NBWA, see our brochure here or contact us.


Stay up to date with the NBWA by reading our latest newsletter.


Next NBWA Board Meeting

July 13th, 2018

Marin Municipal Water District

More Information

Announcements and News

Wired: After the Napa Fires, a Disaster-In-Waiting: Toxic Ash

The devastation [caused by the fires] leave behind another potential disaster: ash.

Learn More

Featured Video

Re-Oaking the Valleys: New Strategies for Enhancing Local Biodiversity and Resilience

June 2, 2017

Robin Grossinger and Erica Spotswood, San Francisco Estuary Institute

More Information

NBWA Brochure

View Brochure