Arizona v. California Case

Facts of the Case

“In an original action in the Supreme Court of the United States in which Arizona sued California and seven of its public agencies, and later Nevada, New Mexico, Utah, and the United States were added as parties, the basic controversy was as to how much water each state has a legal right to use from the Colorado River and its tributaries. The Supreme Court referred the case to a special master to take evidence, find facts, state conclusions of law, and recommend a decree, all subject to consideration, revision, or approval by the Court. The master concluded that (1) the issues in the case were not controlled by the Colorado River Compact, the law of prior appropriation, or the doctrine of equitable apportionment