New water service and customer service
For account information, billing questions or to make a payment
Website
Email
844-463-6567
Non-emergencies
Email
650-330-6750
Emergencies
Monday through Thursday, 7:30 a.m. to 4:30 p.m.
Alternating Fridays, 7 a.m. to 3:30 p.m.
650-330-6780
After-hours or weekends
650-330-6300
Report water waste
Online
650-330-6750