Delivering today. Planning for tomorrow.
At San Jose Water, providing water is more than a responsibility—it’s a privilege. Every connection we serve helps sustain what matters most: public health, vibrant neighborhoods, and a reliable future. With over one million customers in the greater San Jose area, we invest in critical infrastructure to protect and strengthen the water supply for generations to come.
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Temporary Water Source Change
As part of ongoing system improvements by Valley Water, the Rinconada Water Treatment Plant will undergo a temporary shutdown from 10/30/25 to 4/28/26. This allows for essential work including pipeline inspections and repairs, and other routine maintenance upgrades.
During this time, customers located on the West Side of SJW’s service area will receive water supplied from local groundwater and the Montevina Water Treatment Plant. No action is required—your water remains safe to drink and use. Please contact our Customer Service team at 408-279-7900 or customer.service@sjwater.com with any questions.
Customer Resources
Water Rates
2026 Water Rate Changes (NEW!)
- Starting January 1, 2026, CPUC-approved rate increases take effect for SJW customers.
- Information on 2025 rate changes can be found here.
General Rate Case Filing 2025-2027
Our GRC application filed for the years 2025-2027 proposes a 3-year $540 million capital investment program to ensure a resilient water system for our customers and local communities.
Smart Water Meter Installations
From 2024-2027, we are installing Smart Meters. Want to know when your smart meter will be installed? Look up your address on the map.
Billing & Payment
PromisePay Payment Plans
SJW has partnered with Promise to provide affordable, flexible, and interest-free payment plans to customers with past due water bills. All new payment plans will be with PromisePay.
In-Person Bill Pay Option for Customers
CheckFreePay® is a convenient way to pay your water bill in-person with cash, with more than 20 locations in our community. Go to our CheckFree page to find one near you!
Service Charge FAQs
What to know about the service charge on your water bill.
Infrastructure & Service Updates
McLaughlin Foundation
Our fluoridation facility is currently offline due to a manufacturer delay and is currently projected to restart service in early 2026. If you have any questions, please email us.
Williams Station Transition
As part of our commitment to providing the highest quality water, SJW has transitioned from using free chlorine to chloramine as the primary disinfectant for the water supplied by Williams Station wells.
Cambrian Reservoirs
Construction to build two new tanks will provide 16 million gallons of potable water storage to our customers, scheduled to complete in September 2027. Learn more here.
Guide to Your Water Bill in 2025
We created this brief video guide to break down exactly where your dollar goes when it comes to your water bill.
Learn how much of what you pay goes towards water supply rates set by Valley Water, operating costs, infrastructure upgrades and more.
Check out the latest from San Jose Water!
From company updates to industry insights, our News & Media page is your source for what’s happening.
About Us
Got Water Quality questions? Check out our current annual reports:
San Jose Water is a regulated private utility and one of the largest, most technically sophisticated urban water systems in the United States.
Rates & Regulations
San Jose Water’s rates are set by the California Public Utilities Commission (CPUC), an independent third party that protects utility customers and ensures rates are fair and reasonable. Our water rates are based on “cost of service,” meaning operating costs are passed through without a markup. Learn more.