Right of a user to use water from a water source
This article is about water usage laws in
common law. For a discussion of the right to water as a human right under
international law, see
right to water.
Water right in water law is the right of a user to use water from a water source, e.g., a[1] river, stream, pond or source of groundwater. In areas with plentiful water and few users, such systems are generally not complicated or contentious. In other areas, especially arid areas where irrigation is practiced, such systems are often the source of conflict, both legal and physical. Some systems treat surface water and ground water in the same manner, while others use different principles for each.