Rinconada Water Treatment Plant

The Rinconada Water Treatment Plant is the second-largest of Valley Water's plants. Completed in 1967 by the Santa Clara County Flood Control and Water Conservation District - the precursor to today's water district - the plant can treat and deliver up to 80 million gallons of water each day for retailers who supply residential and commercial users in the West Valley, including the cities of Santa Clara, Campbell, Sunnyvale, Cupertino, Mountain View, Monte Sereno, Saratoga and Los Altos and the towns of Los Gatos and Los Altos Hills.

Water source

Rinconada mainly draws water from the South Bay Aqueduct (SBA) and the San Luis Reservoir. The San Luis Reservoir is a key component of the federal Central Valley Project. Water from the Sacramento-San Joaquin Delta pumps into the Delta-Mendota Canal and then into the San Luis Reservoir. The SBA is a key component of the State Water Project system. Valley Water is one of many users that draw water from this reservoir. Valley Water's local Anderson and Calero reservoirs can also supply the plant. 

Contact information

If you have any questions or concerns about the Rinconada Water Treatment Plant, please contact Neighborhood Liaison Aimee Green at 408-630-2342 or via email at [email protected].

If an urgent problem arises after regular business hours, please call the on-duty plant supervisor at (408) 630-2121.

Valley Water is committed to providing a healthy, clean, reliable and affordable water supply that meets or exceeds all applicable water quality regulatory standards in a cost-effective manner.