Large Raised Reservoirs

This dataset has been discontinued. Please see the datasets - Large Raised Reservoir register (Locations and undertakers) and Large Raised Reservoir (Registered information) which have replaced it. This dataset contains details of Large Raised Reservoirs. Natural Resource Wales (NRW) collects and maintains data on all reservoirs designed or capable of holding more than 25,000 cubic metres of water above the natural level of any part of the land adjoining them defined as 'large raised reservoirs' under the Reservoirs Act 1975. Two types of reservoir are maintained within the register: - Impounding (Dammed); or - Non-Impounding (Pumped/unimpeded)