WESTERN WATER NEWS
Trump Administration Rescinds Biden-Era Public Lands Protections across the West213
Data Centers and Water Use: The Next Allocation Debate in the Colorado River Basin?215
Washington State Water Law: A Family Farm, 30,000 Claimants, and a Question of What “Help” Really Means—A Survey for Water Law Practitioners, Summer 2026217
LEGISLATIVE DEVELOPMENTS
Rising Concerns over Potential Data Center Developments and Effects on State Water Supplies—California Senate Bills 886 and 887219
Summary of Water Bills Pending in the Oregon Legislature220
REGULATORY DEVELOPMENTS
California Department of Water Resources Releases “A New Vision for San Joaquin Valley,” Addressing Long-Term Water Management in the
Valley223
Nevada Division of Water Resources Releases Middle Humboldt River Basin Groundwater Model224
EPA NEWS AND SANCTIONS
Recent EPA News, Investigations and Sanctions226
RECENT FEDERAL DECISIONS
Circuit Court of Appeals:
Ninth Circuit Clarifies EPA Discretion in Regulating decaBDE230
Alaska Community Action on Toxics v. U.S. Environmental Protection Agency, 175 F.4th 1169 (9th Cir. 2026).
Standing before Substance: D.C. Circuit Dismisses PFAS Citizen Suit Against EPA232
Public Employees for Environmental Responsibility, et al. v. Zeldin, et al., ___F.4th___, Case No. 24-5294 (D.C. Cir. May 1, 2026).
The Ninth Circuit’s Latest Klamath Project Decision—Idaho Water Users Take Note233
Yurok Tribe v. Klamath Water Users Association, ___F.4th___, Case No. 23-15499 (9th Cir. June 17, 2026).
RECENT STATE DECISIONS
Validation, Proposition 218, and Finality: California Court of Appeal’s Decision in Hiller v. Marin Municipal Water District236
Hiller v. Marin Municipal Water District, ___Cal.App.5th___, Case No. A171271 (1st Dist. June 2, 2026).
