Sandbagging operations are underway. The plant serves some 95,000 people in Marin, Napa and Sonoma counties. There is a threat that floodwaters could enter the community's water system. Due to flood water infiltration into a water plant in the San Lorenzo Valley Water District, as many as 400 people there are currently without water service. At least eight others have experienced flooding but as of yet have not declared local emergencies.
Voluntary evacuations are underway in Glenn County.
Levee failures or breaches have been reported in many areas, including Antelope Creek in Tehama County, and Van Sickle Island, Montezuma Slough and Rat Creek in the Delta region. Fifty structures are threatened by floodwaters in Merced County, and as many as 45,000 chickens have drowned.