AZ HB2019

Requires the Department of Water Resources to make hydrologic models available for free public inspection, including the models' findings, conclusions, methods, and assumptions used to evaluate water supply applications.

Mandates the director post anticipated model assumptions on the department's website at least 90 days before implementing a new groundwater model within an active management area.

Requires the director to hold a public meeting to receive comments on model assumptions after the initial posting period expires.

Directs the department to post all public comments received and departmental responses on its website, with statements indicating whether each comment resulted in additions, modifications, revisions, or deletions to assumptions.