Phoenix Rainfall and Water Distribution

The topic of water often begins with rain. Arizona’s three distinct geographic regions have dramatically different rainfall: average annual rainfall ranges from 3 inches in Yuma to over 36 inches in the higher elevations along the Mogollon Rim and in the White Mountains. At 113,909 square miles, Arizona is the sixth largest state in the union, and despite its relatively dry nature, it contains 28 major rivers.  Many of these rivers are dry channels that flow only when it rains.

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Lake Pleasant’s Award Winning Water Treatment Plant

The desert region of central Arizona is now the site of North America’s largest design-build water treatment plant. The advanced facility has succeeded at maintaining and treating an average of 80 million gallons a day and also has state of the art disinfecting capabilities. The current intake will ultimately be expanded to 320 mgd to keep pace with increasing development in northern Phoenix.  This construction effort included a raw water intake and pump station, 1.5 miles of large-diameter pipeline and

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