Scottsdale’s Water Reckoning Arrives With the Colorado River Plan

Federal officials will unveil their Colorado River plan next week, and for Scottsdale and other cities in the area, the news is unlikely to bring relief. Quite the opposite.

Central Arizona Project

The pain lands here first

Scottsdale draws roughly 70% of its water from the Central Arizona Project. That canal now sits at the center of a shrinking river. Federal officials will release a long-awaited Colorado River management plan next week. As our ongoing coverage has documented, the reservoirs keep falling. The Lower Basin water fight has left Arizona holding the heaviest losses.

Arizona surrenders the most

The Lower Basin states proposed deep cuts for 2027 and 2028. Arizona, California and Nevada would give up at least 3.2 million acre-feet. Arizona alone would surrender 760,000 acre-feet in mandated cuts. That comes from its 2.8 million acre-foot share. California loses 444,000. Nevada gives up just 50,000 a year.

The math is not accidental. Federal law placed CAP water below California’s supply in priority. So when the river shrinks, CAP absorbs the blow first. Scottsdale sits at the end of that vulnerable line.

Lake Mead keeps dropping

Lake Mead is the river’s largest reservoir. It entered summer below 30% of capacity. Lake Powell fared no better. Combined storage broke its record low on July 12. Researchers called it a significant moment in the crisis. Every day now threatens a new record.

Photo Credit: Utah State University

Near-record low snowpack last winter deepened the wound. Experts warned for years that storage was too thin. Nobody rebuilt it. Now the bill comes due.

No lasting certainty

The plan covers only two years at a time. The Department of the Interior chose flexibility over long-term clarity. The seven states still cannot agree on a broader deal. A decade-old set of shortage rules expires October 1. New guidelines must take effect for the 2027 water year.

The conflict will not end next week. Arizona may still sue upstream states over shrinking flows. The Upper Basin insists it cannot conserve water it never receives.

What Scottsdale should expect

Less water. Higher costs. Harder choices. The city built its growth on Colorado River deliveries. That foundation is thinning fast. Conservation is no longer a talking point here. It is the new baseline.

The river gave Scottsdale its lawns and its fountains. Now it is asking for much of that back.