Arizona Water Resources Director Tom Buschatzke stressed that the announcement is not a final deal.

Source: https://www.csmonitor.com/Environment/2023/0523/Western-states-strike-a-deal-to-conserve-water-from-Colorado-River?icid=rss

Instead, Tom Buschatzke, director of the Arizona Department of Water Resources, called the proposal a key step in the “ongoing dialogue” among the seven states “as we continue to seek a collaborative solution to stabilize the Colorado River system.”

Source: https://www.latimes.com/environment/story/2023-01-31/states-miss-deadline-for-agreement-on-colorado-river-water

The Director of the Arizona Department of Water Resources — currently Tom Buschatzke — will chair the council and create committees.

Source: https://ktar.com/story/5408670/arizona-gov-hobbs-talks-water-management-in-state-of-state-launches-groundwater-council/

“The numbers are not yet completely defined because, as was discussed, all of this is being done through voluntary agreements,” Buschatzke said at the conference.

Source: https://cronkitenews.azpbs.org/2023/05/25/katie-hobbs-arizona-no-water-crackdown-colorado-river-plan/