Which group uses approximately 70% of Arizona's available water?

The group that utilizes approximately 70% of Arizona's available water is the agricultural sector. This substantial percentage is primarily due to Arizona's reliance on agriculture as a foundational element of its economy and the arid conditions that necessitate significant water use for irrigation purposes. Agriculture in Arizona encompasses a variety of crops, including those that require extensive water, such as alfalfa, cotton, and various fruits and vegetables.

Despite the increasing demands for water in urban and industrial sectors, agriculture remains the dominant user due to the state's climate and the historical focus on farming and production. Understanding this allocation of water resources is crucial, particularly in the context of water management and policy decisions in Arizona, as the competition for this limited resource continues to grow amidst population expansion and climate change.