The National Rivers Authority (NRA) was one of the forerunners of the Environment Agency of England and Wales, existing between 1989 and 1996. Before 1989 the regulation of the aquatic environment had largely been carried out by the ten regional water authorities (RWAs). The RWAs were responsible for the supply and distribution of drinking water, sewerage and sewage disposal, land drainage and flood risk management, fisheries, water quality management, pollution prevention, water resource management and many aspects of the management of aquatic ecology and some aspects of recreation. With the passing of the Water Act 1989, the 10 Water Authorities in England and Wales were privatised by flotation on the stock market. They took the water supply, sewerage and sewage disposal activities into the privatised companies. The remaining duties remained with the newly created National Rivers Authority.