We will be hosting the eighth annual Creeks to Bay Clean-up with the Tri-Valley Adopt-a-Creek Spot on September 21, 2019. This clean-up effort is part of the global Coastal Clean-up day where communities come together to prevent garbage from entering our oceans.

We will be cleaning sections of the Arroyo Mocho, Arroyo Las Positas and Altamont Creek. Details and sign-up can be found here.