Water rates can be very complicated. On these pages, you will find information and legal documents related to your water rates and how they are set.
- How rates are set: An overview of the process used by the Hawaii Public Utility Commission (HPUC) to set your water rates.
- Rates and tariffs: Details of HPUC-approved water rates and tariffs.
- Other filings: Miscellaneous filings.
- Water charge estimator: An online tool for comparing your estimated monthly water-related charges before and after the proposed rate increase.