Every drop of water that flows from your tap depends on a network of pipelines working behind the scenes. At Valley Water, we work hard to keep that system strong through regular inspections, maintenance and upgrades that protect Santa Clara County’s water supply.
This fall, we’re starting an important project to inspect and repair the West Pipeline, one of the key parts of our water delivery network. Built in 1966, the West Pipeline carries treated drinking water from the Rinconada Water Treatment Plant in Los Gatos to local water retailers serving communities in Campbell, Cupertino, Los Altos, Los Altos Hills, Los Gatos, Mountain View, Santa Clara, Saratoga, Sunnyvale, and West San Jose.
Crews will repair 25 sections along 2.8 miles of the West Pipeline, from More Avenue in Los Gatos to Cox Avenue in Saratoga. The work is set to begin in late October 2025 and continue through April 2026.
The West Pipeline will be offline through April 2026. During this time, some residents and businesses may receive water from their cities’ or local retailers’ own sources instead of the Rinconada Water Treatment Plant. Your water service will not be interrupted, but the source of your water will temporarily change while we complete these important improvements.
If you have questions about your water quality, your local water retailer can help. You can find their contact information at valleywater.org/find-my-retailer.
Valley Water thanks our partner water retailers for their willingness to work closely with us, and with one another, in a coordinated effort to keep water flowing safely and reliably for all residents and businesses during this important work.
This project is part of Valley Water’s 10-Year Pipeline Inspection & Rehabilitation Program, our long-term commitment to maintaining a reliable water system. So far, we’ve:
- Inspected 80 miles of pipeline
- Repaired 560 feet of critical sections
- Replaced 1,000+ pipeline components
- Added 18 new valves and nearly 300,000 feet of fiber-optic monitoring systems
These efforts are an investment in our future. They help ensure that clean and safe water will be available for generations to come.