In An Emergency:

Water Emergencies: Call MWSD at (650) 728-3545
Sewer Emergencies: Call SAM at (650) 726-0124
Dial 911 for life-threatening and safety


Start and Stop Service

To Start or Stop Service Water Service of existing water connections please call our District staff at (650) 728-3545 or email If you would like to apply for water and sewer connections please find detailed information in the applications below.

Existing Homes Water Service Application
New Domestic Water Service Application
Private Fire Protection Application
Application for Sewer Connection Permit