California Water Library
The San Francisco Bay region is 4500 square miles, extending from Tomales Bay in Marin County to southern Santa Clara County and inland to the eastern edge of Suisun Bay. Land use varies from the urban Bay area cities to the Napa and Sonoma Valley wine growing regions and includes significant Pacific Coast marshes as well as Suisun Marsh, the largest contiguous brackish marsh on the West Coast of North America.
U.S. Department of Agriculture (USDA) | December 9th, 1930
California Department of Water Resources (DWR) | December 1st, 1931
California Department of Water Resources (DWR) | March 29th, 1957
California Department of Water Resources (DWR) | July 15th, 1964
California Department of Water Resources (DWR) | November 15th, 1966
California Department of Water Resources (DWR) | August 15th, 1967
California Department of Water Resources (DWR) | June 15th, 1968
California Department of Water Resources (DWR) | August 15th, 1969
California Department of Water Resources (DWR) | June 15th, 1970