Water: Brought to you by Central Arizona Project. The 336-mile CAP system took 20 year to build, cost $4 billion, and is an engineering marvel that has contributed dramatically to our quality of life and the sustainability of the state’s water supply and economy.
2022 Tier 1 Colorado River shortage
Learn more about the declared Tier 1 Colorado River shortage for 2022.
Water Supply
Colorado River water: Adapting, protecting and building resiliency.
CAP System
Reliable deliveries to central and southern Arizona.
About Us
Central Arizona Project (CAP) is Arizona’s single largest resource for renewable water supplies. CAP delivers Colorado River water to Maricopa, Pinal and Pima counties, serving more than 5 million people, or more than 80% of the state’s population.
Contracting
Doing business with CAP. CAP engages in a wide range of activities while operating and maintaining the components of the system, and a great variety of equipment, supplies and services must be purchased to support these operations.
Arizona’s colorful water history comes alive in CAP Oral Histories
Learn about Arizona’s water history from those who lived it, stories of conflict and collaboration. . .hostility and harmony.
Colorado River under stress – Arizona’s response
The Colorado River Basin has been in a prolonged drought, exacerbated by climate change and we are experiencing the driest conditions in the Colorado River Basin in more than 1,200 years. The Basin’s reservoirs, Lake Powell and Lake Mead, are approaching critical elevations and will require unprecedented management actions to protect infrastructure and water supplies. Learn more about Arizona’s response in this Opinion piece which appeared in the Arizona Republic on Sunday, May 8, 2022.
A time-lapse glimpse into a rare pump overhaul
Photographing the work involved in a pump overhaul will help direct the work of future craftsmen.
Public Meetings
Unless otherwise noted, all meetings are held at CAP Headquarters, 23636 N. 7th St., Phoenix, AZ. Sign up to be notified of CAP board meetings.
