As water becomes ever more important in a rapidly growing United States challenged by lessening firm-yield water reliability, the public needs to understand the myriads of quite different state-by-state water policies. States share surface water and groundwater sources that relate to each other conjunctively. Texans for example, should understand New Mexico water ownership and state policies because they share surface water and groundwater sources. Californians should understand Nevada’s water policies for the same reasons. Above all else, the people of the United States must realize that a water policy in one state can drastically impact water availability in neighboring states. Although the federal government has supra-legal authority over some state water policies and acts as the ultimate arbiter of interstate disputes, no one current book exists that explains the complicated relationships between state water policies with an analysis of federal water policies.Water Rights and Polices in the United States is a one-stop resource providing a state-by-state analysis of water ownership, regulatory agencies, and water polices. It explains the complicated relationships between state water policies and provides an analysis of federal water polices. How we manage these policies is of utmost importance to all Americans.