California Water Service Group Announces Rate Increase for Hawaii Water Service's Waikoloa Systems
On October 14, 2025, California Water Service Group (NYSE: CWT) announced a significant development for its subsidiary, Hawaii Water Service. The Hawaii Public Utilities Commission (HPUC) has approved an increase in annual revenue by $4.7 million across the five systems that comprise the Waikoloa service area. This decision is aimed at ensuring the continued safety and reliability of utility services in the region.
1. The Necessity of Rate Adjustment
The recent rate adjustment reflects the company's ongoing commitment to infrastructure enhancements, addressing inflationary pressures, and managing rising operational costs. The increased revenue will allow Hawaii Water to maintain and fortify the water and wastewater systems serving the Waikoloa Resort and Village, which are critical for the area's residents and tourism.
Breakdown of Capital Investments
Over the past few years, Hawaii Water has undertaken numerous capital investment projects totaling approximately $33 million since the last rate adjustment in 2019. Key investments include:
- Drinking Water and Wastewater Enhancements: Nearly $17 million has been allocated for improvements to drinking water wells and sewer pump stations, including the installation of backup power generators. These upgrades are designed to enhance supply reliability, particularly during power outages.
- Infrastructure Modernization: Over $8 million has been invested in new transmission and distribution pipelines aimed at minimizing leaks and further increasing system reliability.
- Water Quality Compliance: An additional nearly $8 million has been directed toward enhancements in water and wastewater treatment plants to ensure that water quality standards are upheld, while also increasing treatment capacity.
These investments not only serve to improve the utility's operational efficiency but also align with Hawaii Water’s objectives to safeguard the environment and provide high-quality service to its customers.
2. Leadership's Commitment to Excellence
Marty Kropelnicki, Group Chairman and CEO of California Water Service Group, emphasized the company's dedication to delivering safe and reliable services. “We take our responsibility to provide safe, reliable drinking water and wastewater service to our Waikoloa Resort and Village customers seriously, while working to protect the environment,” Kropelnicki stated. He further noted that proactive infrastructure upgrades and efficient operations are crucial for maintaining affordable long-term costs for customers.
3. New Rates Effective Immediately
The newly approved rates, which also include a fixed charge for non-residential water system customers aimed at conservation-related activities, became effective on October 9, 2025. This rate adjustment is poised to enhance the financial stability of Hawaii Water while supporting the ongoing maintenance and improvement of essential services.
4. About California Water Service Group
California Water Service Group operates several regulated utilities, including California Water Service, Hawaii Water Service, New Mexico Water Service, and Washington Water Service. The combined efforts of these entities provide regulated and non-regulated water and wastewater services to over 2.1 million customers across California, Hawaii, New Mexico, Washington, and Texas. The company’s commitment to quality service is reflected in its proactive investment strategies and customer-first approach.
In summary, the recent decision by the HPUC to approve a rate increase for Hawaii Water Service marks a pivotal step towards enhancing infrastructure and maintaining service reliability in the Waikoloa area, underscoring California Water Service Group's commitment to operational excellence and customer satisfaction.
