California Water Service Group (NYSE:CWT) has filed a significant infrastructure improvement plan with the California Public Utilities Commission (CPUC).

The plan, spanning 2025-2027, proposes a $1.6 billion investment in water systems, aiming to enhance water reliability and safety across its California districts.

Among the upgrades are water quality enhancements, pipeline replacements, and solar installations to reduce electric grid dependency.

These improvements, the company asserts, are critical for meeting stringent regulations and addressing climate change impacts.

The proposal also includes a Low-Use Water Equity Program designed to support low-income customers and decouple revenue from water sales, ensuring affordability and conservation.

The plans will undergo an 18-month review by the CPUC, with new rates expected to take effect no sooner than January 2026.