The Arizona Revised Statutes have been updated to include the revised sections from the 57th Legislature, 1st Regular Session. Please note that the next update of this compilation will not take place until after the conclusion of the 57th Legislature, 2nd Regular Session, which convenes in January 2026.
DISCLAIMER
This online version of the Arizona Revised Statutes is primarily maintained for legislative drafting purposes and reflects the version of law that is effective on January 1st of the year following the most recent legislative session. The official version of the Arizona Revised Statutes is published by Thomson Reuters.
45-261 - Presumption in favor of prior filings and decrees
45-261. Presumption in favor of prior filings and decrees
A. Except as otherwise specifically provided in this article and to the extent that water rights have not been forfeited or abandoned, the director, the master and the court shall apply the following evidentiary rules in determining the attributes of water rights claimed pursuant to this article:
1. The court shall accept information in an applicable prior decree as prescribed by section 45-257, subsection B, paragraph 1.
2. If information in a prior decree conflicts with information in one or more applicable prior filings, the court shall accept the information in the prior decree as prescribed by section 45-257, subsection B, paragraph 1.
3. If there is no information in any applicable prior filing or decree or if the court finds that information contained in an applicable prior filing regarding a water right attribute is clearly erroneous, the court shall determine the attribute. In making a determination pursuant to this subsection, the court may use the director's report, statement of claimant information, information obtained in claimant interviews, aerial photographs, satellite technology, historical records, maps, technical data or other relevant information in evidence.
B. If there is a conflict in applicable prior filings regarding the ownership of a water right and multiple parties have filed applicable statements of claimant, any claimant may offer that information to support or refute a claim of water right ownership.
C. Section 45-256, subsections D and E apply to the evidentiary weight given to the following determinations made by the director:
1. That information contained in a prior filing is clearly erroneous as it relates to the water right claim or use being investigated.
2. That no water right was initiated or perfected under the applicable federal, state or territorial law.
3. That a water right was forfeited or abandoned.
D. The director's report shall contain the basis for determinations made pursuant to subsection D of this section.