Recent water level data at Dumbarton Bridge has been collected by the U.S. Geological Survey, funded by the Alameda County Flood Control and Water Conservation District. These data begin in Water Year 2011 through the present, and can be found at this link:

Older data collected at Dumbarton Bridge, including the tide gauge data from 01-28-2011 to 10-18 (funded by the U.S. Fish and Wildlife Service) are available on the NOAA Tides and Currents website for Station ID 9414509 Dumbarton Bridge, CA.