Cal Water finalizes infrastructure improvement plan
California Water Service (Cal Water), the largest subsidiary of California Water Service Group, received a final decision on its 2024 General Rate Case and Infrastructure Improvement Plan from the California Public Utilities Commission (CPUC) on April 30, 2026. The Company notes that the decision enables Cal Water to invest responsibly in water system infrastructure through 2027 to support its communities and sets Cal Water’s revenue and rates to help sustain safe, clean, reliable water service through 2028.
The CPUC adopted the proposed decision issued March 13, 2026, with revisions issued on April 29, 2026. The final decision increases Cal Water’s company-wide revenues by $90.5 million in 2026, which is a rate increase of 10.9%. The final decision also increases the company’s future revenues by $43.2 million in 2027, a rate increase of 4.7%, and $48.9 million in 2028, a rate increase of 5.1%.
The decision also authorizes Cal Water to invest $1.45 billion in its districts from 2024 through 2027 to upgrade infrastructure, such as water quality projects to protect customers from existing and newly regulated contaminants; pipes and other infrastructure to keep pumping and delivering water reliably; equipment to keep water flowing during power outages and shutoffs; cyber and physical security improvements to protect employees, customers and facilities; and water supply initiatives to secure long-term sustainability of water sources.
