HB2017 proposes amendments to Arizona's water supply laws, specifically regarding the determination of physical availability for assured water supply designations or certifications. The bill allows the Director of the Arizona Department of Water Resources (ADWR) to consider only the source of water supply when determining its physical availability, without regard to whether the water is commingled with other sources in a water delivery system. Additionally, the bill prohibits the ADWR Director from requiring a subdivider to procure or dedicate a water source exceeding 100% of the water needed for the subdivider's proposed use.

The bill also includes technical and conforming changes, such as modifying the notification process for designations of assured water supply and clarifying the application of rules for gray water reuse systems. The bill was vetoed by the Governor, who expressed concerns that it would weaken existing water supply regulations and fail to address the real challenges of groundwater management in Arizona.

Statutes affected:
Introduced Version: 45-576
House Engrossed Version: 45-576