News Details

Source Water Change South of Cuesta Drive

The City's Water Operations will be conducting a temporary source water change from June 7-21. During this period, the southern part of the city (south of Cuesta Drive), which typically receives imported water from Valley Water, will receive San Francisco Public Utilities Commission "Hetch Hetchy" source water. While any change in source water may be noticeable in terms of taste, both water sources meet all Federal and State water quality requirements. 

Water quality information for all of Mountain View's water sources can be found in the City's annual Water Quality Report posted online at

Please contact 650-903-6241 or for questions and concerns.