Decoding the Colorado River Compact: How It Affects Arizona's Water Supply ====================================================== The Colorado River Compact, signed in 1922 by seven states including Arizona, has had a profound impact on the state's growth

Decoding the Colorado River Compact: How It Affects Arizona's Water Supply

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The Colorado River Compact, signed in 1922 by seven states including Arizona, has had a profound impact on the state's growth, water rights, and major projects like the Central Arizona Project (CAP). This complex agreement governs the allocation of water from the Colorado River among these seven states: Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming. In this article, we'll delve into the world of the Colorado River Compact and its significance for Arizona's water supply.

History and Purpose

The Colorado River Compact was designed to provide a framework for managing the river's waters among the seven signatory states. The agreement allocates approximately 7.5 million acre-feet of water per year, with each state receiving a predetermined share. The compact's primary purpose is to ensure that each state receives its fair share while also protecting the long-term sustainability of the Colorado River system.

Key Facts

• Arizona's Allocation: Arizona is entitled to 2.8 million acre-feet of water per year.
• Water Rights: The compact governs both surface and groundwater rights, as well as the use of stored water in Lake Mead (located on the Arizona-Nevada border).
• Interstate Cooperation: The compact promotes cooperation among states to manage the Colorado River's waters, including sharing data, coordinating reservoir management, and addressing disputes.

Implications for Arizona

The Colorado River Compact has far-reaching implications for Arizona's water supply. Some of these effects include:

• Water Shortages: Arizona is currently facing severe water shortages due in part to drought conditions and climate change.
• Central Arizona Project (CAP): The CAP, a major water delivery system, relies on the Colorado River Compact to transport water from Lake Havasu to Phoenix and Tucson.