watershed health; use; survey

HB 2516 amends Arizona water law by defining "watershed health uses" and requiring the Department of Water Resources director to conduct groundwater quality studies. The bill adds a new duty for the director to perform feasibility studies and remedial investigations on groundwater quality, with the option to enter into federal agreements under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). This change directly affects the Department of Water Resources, which will now have a specific administrative obligation to assess groundwater quality. The bill focuses on clarifying terminology and adding a study requirement without altering existing water rights or funding.