AZ HB2099

Prohibits municipal water providers from storing Colorado River water or Central Arizona Project water as long-term storage credits during federally-declared shortage periods on the Colorado River.

Requires the Arizona Department of Water Resources director to reject any assignment or transfer of long-term storage credits that would violate the new shortage-period storage prohibition.

Bars municipal providers from placing orders with the Central Arizona Water Conservation District for Central Arizona Project water intended for underground storage during declared shortage periods.

Amends three sections of Arizona Revised Statutes (45-852.01, 45-854.01, and 48-3713.02) related to underground water storage, savings, and replenishment.

Applies to shortage declarations made by the U.S. Secretary of the Interior or the Commissioner of the Bureau of Reclamation.