OPINION — In August 2026 the nation’s two largest reservoirs, Lake Mead and Lake Powell, both on the Colorado River, hit their lowest levels since they first began to be filled in 1936 and 1963, respectively.
The federal government and the seven Colorado River basin states — Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming — have been unable to reach an agreement about who should reduce water usage by how much to avoid catastrophic declines in lake levels.
And the existing plans and commitments, including a federal outline announced in late July 2026, don’t get close to achieving what’s needed to keep the river flowing. Here’s a look at the key issues making an agreement so hard to reach.