AZ HB2331

Amends the definition of "area of impact" in Arizona water law to reference section 45-802.01 rather than providing separate definitions, creating a unified standard across statutes.

Modifies section 45-576.08 regarding assured water supply designations in the Pinal active management area to streamline review of stored water recovery outside impact areas.

Removes language requiring hydrologic modeling as the sole method to demonstrate positive impact from water storage, allowing for alternative demonstration methods approved by the director.

Updates provisions related to long-term storage credits and stored water recovery to align terminology and procedures across multiple sections of Arizona Revised Statutes.

Effective date established as December 31, 2024 for amendments to section 45-802.01.