How do riparian and prior appropriation systems differ in their approach to water rights?

Riparian and prior appropriation systems are two different approaches to water rights in Tennessee. The main difference between the two is when and where they are applied. Riparian systems are based on English common law and are typically seen in states east of the Mississippi River. This system grants rights to the owners of land adjacent to a body of water. It gives these riparian owners the right to access water and requires them to act reasonably in order to do so. For example, they must not divert the water for an unreasonable amount of time or amount. Prior appropriation systems, on the other hand, are based on Western water law and are seen west of the Mississippi River. This system is based on the notion that the first person to put the water to beneficial use is the one who gets the right to use the water. It prioritizes the use of water based on how much of the water source is already being used, and allows those who have already established a right to it to keep using it. These systems are both used in Tennessee and have their benefits and drawbacks. Ultimately, it is up to the state to decide which one to use, as water laws vary depending on the location.

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How do riparian and prior appropriation systems differ in their approach to water rights?

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