What standard of proof applies to Utah water right change applications? Searle v. Milburn Irrigation Company Explained

The Utah Supreme Court’s decision in Searle v. Milburn Irrigation Company provides critical clarity on the standards governing water right change applications, resolving confusion that had plagued practitioners for decades.

Background and Facts

Lawrence and Ann Searle purchased property on the Wasatch Plateau and needed an on-site water source to obtain a building permit for their cabin. They acquired water right number 65-2977 with a 1956 priority date, entitling them to one half-acre foot annually for irrigation from April to October. However, the existing point of diversion was located near Chester, Utah, far from their property. The Searles filed a change application to move the diversion point to the nearby Jacobsen well and convert the use to domestic and stockwatering purposes year-round. Milburn Irrigation Company protested, fearing the change would impair their vested water rights by affecting their water source from the South San Pitch River.

Key Legal Issues

The court addressed three fundamental questions: (1) whether the proper standard of proof for impairment determinations is preponderance of the evidence or some other standard; (2) whether the burden of persuasion shifts to protestants after applicants make a prima facie showing; and (3) whether circumstantial evidence can defeat a change application.

Court’s Analysis and Holding

The court distinguished between the application phase and final adjudication of water rights. During the application phase, courts review administrative decisions rather than adjudicate rights. The proper standard requires applicants to show only “reason to believe” that no impairment will result—sufficient evidence to support a reasonable belief that the proposed change can be perfected without impairing vested rights. This standard falls between Justice Oaks’s minimal threshold and the preponderance standard used in final adjudications. The court rejected burden-shifting, holding that applicants bear the burden of persuasion throughout the process. However, protestants may present direct or circumstantial evidence to undermine the applicant’s showing.

Practice Implications

This decision provides much-needed clarity for water law practitioners. The “reason to believe” standard encourages experimentation with water use while protecting vested rights. Applicants need not meet the higher preponderance standard at the application phase, but they cannot rely on burden-shifting to protestants. The decision balances competing policy goals of promoting beneficial water use and protecting existing rights by allowing a preliminary approval process followed by rigorous proof requirements during the perfection phase.