A.R.S. § 45-187: No rights acquired by adverse use or adverse possession

No rights to the use of public waters of the state may be acquired by adverse use or adverse possession as between the person and the state, or as between one or more persons asserting the water right, but nothing contained herein shall be deemed to diminish or enhance the validity of a claim filed under this article originating prior to the effective date of chapter 164 of the laws of 1919.