Infrastructure Improvement Plan Overview & Helpful Information

Cal Water provides safe, clean, reliable drinking water for everyday and emergency needs, and we’ve been serving local communities for nearly 100 years. This page is designed to share helpful information on our 2024 Infrastructure Improvement Plan.


Watch this video to learn more about Cal Water’s Infrastructure Improvement Plan.

How Rates Are Set

How rates are set

Understanding the Infrastructure Improvement Plan and rate review process

Cal Water’s rates are set by an independent, third party, state agency—the California Public Utilities Commission (CPUC)—with input from the public. We are required to file a new application every three years, so that rates reflect the actual cost of operating, maintaining, and upgrading our water system to provide safe, clean, reliable drinking water to our customers.

Any changes to customer bills as a result of this Infrastructure Improvement Plan would not occur until January 2026 at the earliest.

Learn more about how rates are set.