Stay connected

Cap Highlights

TWG BART Proposal recommendation letter to EPA

Take action now. Use CAP's suggested letter and send your comment to the EPA about the TWG BART Proposal today.more

Cap Highlights

Technical Work Group Submits NGS Agreement to EPA

The TWG has reached agreement on a proposal that will allow Arizona to benefit from the continued operation of NGS while achieving greater emission reductions than an EPA proposal.more

Cap Highlights

Yuma Wetlands Now Part of MSCP

CAP, BOR and other stakeholders recently celebrated the incorporation of the Yuma East Wetlands into the Multi-Species Conservation Program.more

Cap Highlights

CAP Perspectives on the Colorado River Basin Study

CAP has been significantly involved in the Basin Study and is participating in the formulation of the work groups which will take the next steps toward finding solutions to the imbalances between future water supply and demand for Colorado River water...more

Cap Highlights

CAP Announces 2013 Award for Research Winners

Central Arizona Project (CAP) is proud to announce the winners of the 2013 CAP Award for Water Research. The Award recognizes excellence in graduate or undergraduate student research addressing water issues facing the lower basin states...more

Cap Highlights

New U.S.-Mexico Water Agreement Impacts CAP

A new agreement to implement the 1944 treaty between the U.S. and Mexico will give CAP additional water supplies and will help defer shortages in times of drought.more

Cap Highlights

Partners in Conservation Award

On October 18, 2012 the Central Arizona Project, Arizona Department of Water Resources and other cooperating partners in the Colorado River Supply and Demand Basin Report were presented with the prestigious "Partners in Conservation Award" by the Department of the Interior.more

Cap Highlights

Board Increases 2013 Property Taxes

Looming power uncertainties force CAP Board to increase tax rate.more

Cap Highlights

CAP Publishes 2012 Year in Review

CAP's 2012 Year In Review is available now and describes major issues affecting the organization last year, as well as a photo exhibition of internal and external accomplishments and activities. Email info@cap-az.com to request a hard copy.more

Cap Highlights

A Congressional Viewpoint

"I've seen Central Arizona Project from the air. They say that the 7 wonders of the world are unique and they are all man made and I don't know how Central Arizona Project didn't find its way on that list because it's one of the wonders of the world. It's vital to Arizona, and people like me are going to do everything we can to see that it flourishes and develops and goes forward as it was intended for a very long time."-Representative Trent Franks more

Welcome to Central Arizona Project

WELCOME

welcome

Central Arizona Project is designed to bring about 1.5 million acre-feet of Colorado River water per year to Pima, Pinal and Maricopa counties. CAP carries water from Lake Havasu near Parker to the southern boundary of the San Xavier Indian Reservation southwest of Tucson. It is a 336-mile long system of aqueducts, tunnels, pumping plants and pipelines and is the largest single resource of renewable water supplies in the state of Arizona.

During the early 1900's, the seven states of the Colorado River Basin: Arizona, California, Nevada, New Mexico, Wyoming, Colorado, and Utah negotiated for shares of Colorado River water. In 1922, representatives from the seven states and the United States government created the Colorado River Compact, which divided the states into lower and upper basins and gave each basin 7.5 million acre-feet of water to apportion.

TWG BART Proposal