… Water managers in states that use the Colorado River say they have plans to make water systems more efficient as supplies shrink due to drought and climate change.  A new list of potential water infrastructure projects shows the ways Arizona and its neighbors might adapt to a drier future, and the massive spending it will take to make them possible. The list appears to follow an April meeting between Interior Secretary Doug Burgum and governors from the seven states that use water from the Colorado River. The secretary requested a sort of wishlist from those states, and they returned a wide-ranging collection of more than 80 projects with ballpark cost estimates that totaled in the tens of billions of dollars. The list, which was obtained by KJZZ, outlines more than $25 billion of potential spending in Arizona alone.

Other Colorado River management news:

• The New York Times: Tensions are rising between states that rely on the Colorado River
• Las Vegas Review-Journal: Lake Mead’s slow demise just sped up in latest federal study
• KLAS (Las Vegas): Projections sink for Lake Mead in latest 2-year study of Colorado River reservoirs
• KPBS (San Diego): Imperial Valley data center developer files lawsuit seeking access to Colorado River water
• WBUR (Boston, Mass.): Groundwater supplies in the Colorado River basin are falling fast. Is there a solution?
• Daily Journal (Los Angeles): Paper water markets and the future of the Colorado River
• The Arizona Republic (Phoenix): Opinion: If Valley cities would cooperate, none needs to lose water