1983
10/20/2025
We continue expanding our Southern California service with the purchase of Westlake Water Company and formation of our Westlake District.
1984
10/20/2025
A new regulation requires the testing of 25% of wells for volatile organic compounds in groundwater, but Cal Water goes beyond and tests 100% of our wells.
1986
10/20/2025
Cal Water continues innovating; the company switches from recording meter reads on paper to entering them into electronic handheld devices.
1987
10/20/2025
We embrace advancements in technology to enhance water quality and install a carbon absorption system that successfully removes chemicals from groundwater, the first use of this treatment in California.
1989
10/20/2025
The devastating Loma Prieta earthquake rocks the Bay Area, destroying our communities and employees’ homes. Our employees quickly mobilize to help those affected, and our response earns a letter of…