EMERGENCY Responders: Fire/Police/Medical/Coast Guard – CALL 911 (be prepared to advise of your current location).

Note: Levee problem siren testing: Will take place the first Wednesday each month @ 11:00 a.m. If there is a serious levee problem and the siren sounds day or night, take to high ground and wait for instructions.

Non-Emergency Numbers:

County Sheriff Dispatch (925) 646-2441
California Highway Patrol Dispatch (925) 646-4980
County Marine Patrol Dispatch (925) 427-8507