Second-Lowest Snowpack, Powell in Crisis, and a Mussel Breakthrough — Apr 20, 2026

California's April 1 snowpack came in at just 18% of statewide average — the second-lowest reading on record — and the effects are already reshaping the 2026 irrigation season across the Valley. Metropolitan Water District staff called the Colorado River outlook "dire" as Lake Powell is forecast to hit its 3,500 ft emergency trigger earlier than expected. Plus: Arvin-Edison's first-of-its-kind golden mussel treatment delivered 100% kill on caged mussels + canal-wide control, and the Water Blueprint's Unified Valley Water Plan puts the long-term supply gap at $13–20 billion in infrastructure — and still leaves up to a million acre-feet unmet by 2040.Read the full recaps at waterone.ai | Try Chat GSA for instant answers about your district---AI can make mistakes. Check important info.WaterOne.ai (Mizu Analytics, Inc.) strives to provide timely, accurate, and reliable coverage of water, agriculture, and related issues. However, no guarantee is made as to the accuracy, completeness, or timeliness of the information presented. All content is provided for general informational purposes only and should not be relied upon as legal, financial, or professional advice. Users are solely responsible for any actions taken based on the information provided, and WaterOne disclaims all liability for errors, omissions, or outcomes resulting from the use of this site. The opinions expressed are those of the authors.