Arizona HB4100 requires municipal water providers to notify customers of potential rate increases due to losing water from the Central Arizona.

Arizona HB4100 mandates that municipal water providers receiving water from the Central Arizona Project must estimate costs of securing an alternative water supply if they lose all their water from the project. Providers must notify customers by April 15, 2026, about potential rate increases, including revenue increases, monthly bill increases for residential customers, and the typical current bill versus potential future bill. Notice must be mailed and posted on the provider's website. This notice requirement is repealed after December 31, 2026.

Arizona HB4100 requires municipal water providers to notify customers of potential rate increases due to losing water from the Central Arizona.

Arizona HB4100 mandates that municipal water providers receiving water from the Central Arizona Project must estimate costs of securing an alternative water supply if they lose all their water from the project. Providers must notify customers by April 15, 2026, about potential rate increases, including revenue increases, monthly bill increases for residential customers, and the typical current bill versus potential future bill. Notice must be mailed and posted on the provider's website. This notice requirement is repealed after December 31, 2026.