The Colorado River Basin continues to experience drought and the impacts of hotter and drier conditions. The Colorado River Basin is in a Tier 1 shortage for 2024. This represents a 512,000 acre-foot reduction to Arizona’s Colorado River water supply, constituting 30% of CAP’s normal supply, about 18% of Arizona’s Colorado River supply, and just under 8% of Arizona’s total water use. Nearly all the reductions within Arizona will be borne by Central Arizona Project (CAP) water users.
A matter of priorities
To understand these impacts, see an “explainer” on the CAP Priority System.
IMPACTS BY PRIORITY POOL
See impacts by priority pool, mitigation agreements and resources, and DCP agreements.
RELATED CAP PRESENTATIONS
MORE ON COLORADO RIVER SHORTAGE
The Colorado River Basin continues to experience drought exacerbated by the impacts of climate change. The Lower Colorado River Basin is in a Tier 2a shortage for 2023.