Central Arizona Project (CAP) is Arizona's single largest resource for renewable water supplies. CAP is designed to bring about 1.5 million acre-feet of water from the Colorado River to Central and Southern Arizona every year. More than 5 million people, or more than 80% of the state's population, live in Maricopa, Pima and Pinal counties, where CAP water is delivered.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 Arizona.

Background & History- In the early 20th century, Central Arizona Project was a shared dream of Arizonans; a vision of water security and stability for future generations to enjoy their quality of life in a desert. Now that the 336-mile long water delivery system is a reality, the leadership of CAP is responsible for protecting and preserving what past generations were able to fund and build.