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Western Water Law & Policy Reporter

April 2025

Volume 29, Number 6 April 2025

FEATURE ARTICLE

Colorado Supreme Court Clarifies Law on Anti-Speculation Doctrine, Plans for Augmentation by John M. Sittler, Esq., Patrick, Miller & Noto, P.C.,

Aspen, Colorado113

WESTERN WATER NEWS

California Governor Newsom Declares State of Emergency Due to

Wildfires—Exempts Certain Projects from CEQA and the Coastal Act118

REGULATORY DEVELOPMENTS

Council on Environmental Quality Publishes Interim Final Rule: “Removal of National Environmental Policy Act Implementing Regulations” in the Federal Register120

California Department of Water Resources Approves 15 of 16 Groundwater Sustainability Plans—The Legal Implications122

Washington State Department of Ecology Reports on Water Supply in the Yakima Basin124

Utah Division of Water Resources Reports on the Great Salt Lake Basin Integrated Plan Including Dust Research125

PENALTIES AND SANCTIONS

Recent Investigations, Settlements, Penalties, and Sanctions127

LAWSUITS FILED OR PENDING

City of Twin Falls Files Suit Against the Idaho Water Resource Board130

JUDICIAL DEVELOPMENTS

United States Supreme Court Declares that EPA Cannot Impose “End-Result” Requirements in Clean Water Act NPDES Permits132

City and County of San Francisco, California v. Environmental Protection Agency, 604 U.S. ___, 145 S. CT. 704 (2025).