River basin management plans are a management tool in integrated water resources management. They generally contain descriptions of the water resources in a drainage basin and water allocation plans. River basin management plans are a management tool in integrated water resources management. They generally contain descriptions of the water resources in a drainage basin and water allocation plans. River Basin Management Plans are a requirement of the Water Framework Directive and a means of achieving the protection, improvement and sustainable use of the water environment across Europe. This includes surface freshwaters (including lakes, streams and rivers), groundwater, ecosystems such as some wetlands that depend on groundwater, estuaries and coastal waters out to one nautical mile. The Directive requires member states to aim to achieve at least good status in each water body within their river basin districts. Each member state must produce a plan for each of the river basin districts within its territory.