What legal framework governs Don's diversion of water to irrigate his crops?

The correct answer is based on the principle of prior appropriation, which is the legal doctrine that governs water rights in Arizona. Under this doctrine, water rights are typically granted to those who first divert and use the water for beneficial purposes, such as irrigation. The principle establishes a "first in time, first in right" rule, meaning that the first user of a water source has the right to continue using that water as long as it is put to beneficial use. This framework is especially important in arid regions like Arizona where water is a limited resource.

In the context of Don's situation, by diverting water to irrigate his crops, he is claiming his right to that water under the prior appropriation doctrine, which allows him to benefit from the water as long as he meets the conditions set by the law, such as demonstrating beneficial use.

Other frameworks, such as the riparian water system or water usage based on necessity, do not apply in Arizona, where prior appropriation is the primary governing principle for water rights. Water conservation regulations may influence water use practices, but they do not define the legal rights associated with water diversion and use. Therefore, understanding the importance of prior appropriation helps clarify why it is the correct framework for Don's