California Water Service Group

About California Water Service Group

California Water Service Group is the third-largest publicly traded water utility in the United States. We have 6 wholly owned subsidiaries operating in California, Washington, New Mexico, and Hawaii. Four of the 6 subsidiaries are regulated by state public utilities commissions. Non-regulated operations leverage our expertise in operating water and wastewater systems and provide related water and wastewater utility services. Formed in 1926 and based in San Jose, we serve more than 509,000 customers. We have more than $400 million in annual revenue and more than $1.5 billion in gross utility plant assets. California Water Service is the largest subsidiary of California Water Service Group, which also includes Washington Water Service, New Mexico Water Service, Hawaii Water Service, CWS Utility Services, and HWS Utility Services. Together, the Group provides high-quality utility services to approximately 2 million people in 100 communities. Our mission is to be the leading provider of water and wastewater services. We have been named a Top Workplace in the Bay Area, and Cal Water ranked "Highest in Customer Satisfaction Among Water Utilities in the West" by J.D. Power in 2016.

Utilities & Telecommunications
San Jose, CA
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At Cal Water, we concern ourselves with ensuring our customers always have a reliable supply of high-quality water so that our customers don't have to think twice when they turn on the tap.

Scientists in our state-of-the-art water quality laboratory conduct tests for more than 300,000 compounds each year.

Customer Service Representatives answer customers' phone calls during regular business hours, but the service doesn't stop there; employees also handle all after-hours emergencies. We are here for our customers 24 hours per day, 7 days per week.

Engineers design the infrastructure – and crews construct and install it – that deliver high-quality water to our customers,

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