Committed To Providing Pure And Reliable Water

California Water Service: Excellence in Water and Wastewater Management

Committed to Providing Pure and Reliable Water

California Water Service Group, the largest subsidiary of California Water Service, is a premier provider of high-quality water and wastewater utility services in California, Oregon, and Washington. With a long-standing tradition of excellence, our company is dedicated to providing safe drinking water and efficient wastewater treatment solutions to our valued customers.

Serving Cities and Communities

As the largest water and wastewater provider in the West, we operate in over 100 cities and communities, serving a diverse population of residential, commercial, and industrial customers. Our commitment to delivering reliable services extends to every corner of our service areas, ensuring that our customers have access to the fresh, clean water they need to thrive.

Investing in Infrastructure and Innovation

California Water Service is committed to investing in the modernization and expansion of our infrastructure. We continuously upgrade our water and wastewater treatment facilities, utilizing the latest technologies to enhance the efficiency of our operations and improve the quality of our services. Our dedication to innovation drives us to explore new solutions to meet the evolving water challenges of our time.