Silver v. Pueblo Del Sol Water CoAnnotate this Case
The Supreme Court held that Ariz. Rev. Stat. 45-108 does not require the Arizona Department of Water Resources (ADWR) to consider unquantified federal reserved water rights when it determines whether a developer has an adequate water supply for purposes of the statute.
This case stemmed from the ADWR’s 2013 adequate water supply approving Pueblo Del Sol Water Company’s application to supply water to a proposed development in Cochise County. The superior court vacated ADWR’s decision, concluding that the agency erred in determining that Pueblo’s water supply was “legally available” because ADWR was required to consider potential and existing legal claims that might affect the availability of the water supply, including the Bureau of Land Management’s unquantified federal water right. The Supreme Court vacated the superior court’s decision and affirmed ADWR’s approval of Pueblo’s application, holding that ADWR is not required to consider unquantified federal reserved water rights under its physical availability or legal availability analysis.