Skip to content
  • Español
  • Contact Us
  • Facebook
  • Twitter
  • Instagram
  • YouTube
  • RSS
  • Video Library
  • Welcome
  • Overview
  • Usage
  • Usage History
  • Transactions
  • Pay My Bill
  • Logout
  • Forgot username or password
  • Login
  • Create account
California Water Service. Quality. Service. Value.
  • Districts

      Districts

      https://www.calwater.com/wp-content/uploads/2022/10/menu-districts.png
    • Find My District
    • City, Community, and Water System List
    • District Phone Numbers
    • Antelope Valley
    • Bakersfield
    • Bayshore
    • Bear Gulch
    • Chico
    • Dixon
    • East Los Angeles
    • Kern River Valley
    • King City
    • Livermore
    • Los Altos
    • Marysville
    • Oroville
    • Rancho Dominguez
    • Redwood Valley
    • Salinas
    • Selma
    • Stockton
    • Tesoro Viejo
    • Travis
    • Visalia
    • Westlake
    • Willows
  • Customer Care

      Customer Care

      https://www.calwater.com/wp-content/uploads/2022/10/Customer-Care.png
    • Your Account
    • Pay Your Bill
    • Payment Options
    • Update Contact Information
    • High Bills
    • Office Closure Dates
    • Locate a Payment Center
    • Customer Assistance
    • Customer Assistance Program (CAP)
    • Emergency Preparedness
    • Customer Care FAQs
    • Online Account Maintenance FAQs
  • Conservation

      Conservation

      https://www.calwater.com/wp-content/uploads/2022/10/Conservation.png
    • Rebates
    • Smart Landscape Tune-Up Program
    • Conservation Kits
    • H2O Challenge
    • Drought Information
    • Report Leaks and Waste
    • Conservation Resources
  • Water Quality

      Water Quality

      https://www.calwater.com/wp-content/uploads/2022/10/Water-Quality.png
    • Water Quality Reports
    • Contaminants in Detail
    • Water Treatment and Disinfection
    • Water Quality Testing Labs
    • Backflow Prevention
    • Water Quality FAQs
  • In Your Community

      In Your Community

      https://www.calwater.com/wp-content/uploads/2022/10/In-Your-Community.png
    • Reliability Runs Deep
    • Cal Water in the Community
    • Community Giving
    • ESG Report
    • College Scholarship Program
 February 6, 2023 - In-person scam: Water testing

Published on September 29, 2020 in Infrastructure Upgrade in CupertinoFull resolution (400 × 200)
← Previous
Los Altos main installation

About Cal Water

  • Company Information
  • Latest News
  • In the News
  • Current Alerts
  • Infrastructure Updates
  • HomeServe
  • For Suppliers
  • State Map

Districts

  • District Information
  • Find My District
  • City, Community, and Water System List
  • District Phone Numbers

Customer Care

  • Your Account
  • Pay Your Bill
  • Payment Options
  • Update Contact Info
  • High Bills
  • Office Closure Dates
  • Locate a Payment Center
  • Customer Assistance
  • Customer Assistance Program (CAP)
  • Emergency Preparedness

Conservation

  • Rebates
  • Smart Landscape Tune-Up Program
  • Conservation Kits
  • H2O Challenge
  • Drought Information and Resources
  • Report Leaks and Waste
  • Conservation Resources

Water Quality

  • Water Quality Reports
  • Contaminants in Detail
  • Water Treatment and Disinfection
  • Water Quality Testing Labs
  • Backflow Prevention

Community

  • Reliability Runs Deep
  • In the Community
  • Community Giving
  • ESG Report
  • College Scholarship Program

Rates

  • Rates and Tariffs
  • Advice Letters
  • Operating Rules
  • Preliminary Statements
  • Infrastructure Improvement Plans
  • Disconnection of Water Service Data
  • Other Regulatory

Help

  • Customer Care FAQs
  • Water Quality FAQs
  • Rates FAQs
  • Online Account FAQs
  • Video Library
  • Site Map
  • Contact Us

Policies

  • Accessibility Statement
  • Privacy Policy
  • Terms of use

Corporate Web Site

  • Corporate Overview
  • Investor Relations
  • Stock Information
  • Sustainability Policy
  • Careers

Join Us

  • FacebookFacebook
  • TwitterTwitter
  • InstagramInstagram
  • YouTubeYouTube
  • RSSRSS
  • Video LibraryVideo Library
Copyright © 1998–2023 California Water Service