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Your Water

​​Where does your water come from?

Visit our interactive water​ efficiency site ​to learn more about the journey of your water and how to be efficient in its use.  Lake Pleasant which holds colorado river water

​​​Over past century, Phoenix has developed a diverse portfolio of water supplies to meet the city's water needs.

Your water comes from one of these four main categories of supply:

The Central Arizona Project (CAP) conveys water about 190 miles from the Colorado River at Lake Havasu on the Arizona-California border through a system of canals to Phoenix, Tucson and beyond. The CAP system includes a series of pumps and an integral storage reservoir at Lake Pleasant on the Agua Fria River. The system is capable of carrying up to 1.8 million acre-feet each year. Visit Related Links in the bottom left corner of this page for more information on the CAP.

The Salt River Project (SRP) conveys surface water from the Verde River and Salt River watersheds that lie to the north and east of Phoenix. The SRP​ system is composed of six dams, 1,300 miles of canals and 255 high-capacity wells. Phoenix water treatment plants receive about 20 percent of the water delivered each year by SRP to the metropolitan area (in 2013, SRP deliveries totaled just over 767,000 acre-feet). 

Unlike the other sources of supplies - which can be used by anyone within the city limits - SRP supplies are available only to certain parts of the city, referred to as "on-project" lands. 

The watersheds of the Salt, Verde and Colorado Rivers cover large areas of the Western U.S., including areas far from Phoenix. Because of this, wet or dry conditions ​in these watersheds can vary considerably from what we are experiencing in the Phoenix area in any given year.

Having diverse supplies helps the city in planning for future growth and copin​g with shortages. The CAP accounts for around two-fifths of the water supply. SRP supplies account for about one-half. The remainder of your water comes from wells or is recycled water.

You can learn more about your water supply in the 2011 Water Resource Plan. 

 

 

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