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California Water Service Group Celebrates a Century of Building “Trust on Tap”

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California Water Service Group (NYSE: CWT) celebrates its 100th anniversary in 2026 with a year-long program marking a century of service and setting a foundation for future growth. Founded in 1926 by three World War I veterans, the company began serving four California communities and now serves more than 2.1 million people across communities in California, Hawaii, New Mexico, Texas, and Washington. The company is the third largest publicly traded water utility in the U.S. and the largest regulated public water utility west of the Mississippi River. Chairman and CEO Martin A. Kropelnicki emphasized the company’s resilience, ingenuity, and commitment to providing a safe, reliable water supply as it marks this milestone. More historical details are available on the company’s centennial site.

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SAN JOSE, Calif., Jan. 26, 2026 (GLOBE NEWSWIRE) -- California Water Service Group (NYSE: CWT) turns 100 years old this year, and it will commemorate the milestone with a year-long celebration of its legacy that is the foundation for future success.

“Throughout our history, we have shown resilience, ingenuity, and commitment, overcoming challenges time and time again to provide our customers a safe, reliable water supply,” said Chairman and Chief Executive Officer Martin A. Kropelnicki. “We are a purpose-driven company, and it is our commitment to service that will take us into the next 100 years.”

Founded in 1926 by three World War I veterans, the Company that initially served four California communities now serves more than 2.1 million people in hundreds of communities in California, Hawaii, New Mexico, Texas, and Washington. It is the third largest publicly traded water utility in the United States and the largest regulated public water utility west of the Mississippi River.

“It is an honor of a lifetime to celebrate what many companies never achieve—our centennial anniversary,” Kropelnicki said.

To learn more about Group’s storied history, visit 100years.calwatergroup.com.

About California Water Service Group

California Water Service Group (NYSE: CWT) is the largest regulated water utility in the western United States. It provides high-quality, reliable water and/or wastewater services to more than 2.1 million people in California, Hawaii, New Mexico, Washington, and Texas through its regulated subsidiaries, California Water Service, Hawaii Water Service, New Mexico Water Service, and Washington Water Service, and its utility holding company, Texas Water Service. This year, the company commemorates a century of service.

Group’s purpose is to enhance the quality of life for customers, communities, employees, and stockholders. To do so, it invests responsibly in water and wastewater infrastructure, sustainability initiatives, and community well-being. The company’s nearly 1,300 employees live by a set of strong core values and share a commitment to protecting the planet, caring for people, and operating with the utmost integrity. The company has been named one of “America’s Most Responsible Companies” and the “World’s Most Trustworthy Companies” by Newsweek, a USA Top Workplace, and a Great Place to Work®. More information is available at www.calwatergroup.com.

MEDIA CONTACT:
Yvonne Kingman, (310) 257-1434


FAQ

What milestone did California Water Service Group (CWT) announce on January 26, 2026?

The company announced its 100th anniversary and a year-long celebration marking a century of service.

How many customers does California Water Service Group (CWT) serve in 2026?

The company serves more than 2.1 million people across hundreds of communities.

Which states does California Water Service Group (CWT) operate in as of 2026?

CWT operates in California, Hawaii, New Mexico, Texas, and Washington.

How is California Water Service Group (CWT) ranked among U.S. water utilities?

It is the third largest publicly traded water utility in the U.S. and the largest regulated public water utility west of the Mississippi River.

Who is the CEO of California Water Service Group (CWT) and what did he emphasize about the company?

Chairman and CEO Martin A. Kropelnicki emphasized the company’s resilience, ingenuity, and commitment to providing a safe, reliable water supply.
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