The Los Altos Suburban District will experience a limited water supply until tomorrow because of a leak on one of California’s waterline facilities. The California Water Service (CWS) issued a two-day emergency conservation request yesterday to accommodate the reduced water supply and avoid service interruptions. 

Residents of the district, which includes parts of Los Altos, Los Altos Hills, Sunnyvale, Mountain View and Cupertino, have been asked to turn off irrigation systems and minimize water usage. At this point, the CWS does not expect to extend the timeframe of the water supply limitations. 

“We are doing everything we can to ensure water service remains uninterrupted, and really appreciate our customers’ efforts to reduce their use during this time,” CWS Director of Corporate Communications Yvonne Kingman said. 

Valley Water, the CWS’s wholesale water provider, is currently undergoing repairs following the leak on the water line. Until Valley Water resumes supplying water, the district will be served by groundwater wells, water already held in the CWS’s storage tanks and water provided by other utilities. Groundwater will be harder than the water source usually serving Los Altos, meaning it contains more dissolved minerals, but meets federal and state safety standards, according to the CWS.