The bill, H.B. 2019, mandates the Arizona Department of Water Resources (ADWR) to provide public access at no cost to any hydrologic modeling used to assess projected groundwater levels for applications related to assured water supply. This includes making available the findings, conclusions, methods, and assumptions of the hydrologic models. Additionally, the bill requires the Director of ADWR to post anticipated assumptions of new groundwater models on the department's website and invite public comments at least 90 days prior to their use. Following the comment period, a public meeting must be held to gather further input, and all comments and responses must be documented and posted online.

The key differences from current law include the explicit requirement for public inspection of hydrologic modeling and the structured process for public engagement prior to the implementation of new groundwater models. Current law does not specify these public engagement processes, which the bill aims to formalize, thereby enhancing transparency and stakeholder involvement in groundwater management decisions. The bill was ultimately vetoed by the Governor, who cited that ADWR already provides this information and engages with stakeholders effectively, suggesting that the proposed processes could create unnecessary bureaucratic delays.

Statutes affected:
Introduced Version: 45-581
House Engrossed Version: 45-581