After Office Hours
To report an emergency, such as a water main or service line leak, or if water service is required to be turned on or off, please call the San Mateo County Public Safety Communications Dispatch Office at (650) 363-4951.
For non-emergency related matters, you may leave a message at (650) 726-4405.
766 Main Street
Half Moon Bay, CA 94019
Email Customer Service:
Key District Staff
Mary Rogren, General Manager
James Derbin, Superintendent
Gina Brazil, Office Manager
Nancy Trujillo, Accounting Manager
Cathleen Brennan, Water Resources Analyst
Lisa Sulzinger, Administrative Analyst
Detailed information can also be found in the the District’s General Regulations Regarding Water Service.