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Large Raised Reservoir register (Locations and undertakers)

Published by:
Natural Resources Wales
Last updated:
14 October 2025
Topic:
Not added
Licence:
None

Summary

This dataset contains details of Large Raised Reservoirs in Wales. Natural Resources Wales (NRW) collects and maintains data on all reservoirs designed or capable of holding more than 10,000 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; or - Non-Impounding. This dataset is an extract from NRW’s Cronfeydd/Reservoir Database. It contains information on the location, undertakers and engineers of the reservoirs. 'Undertaker' is the legal term used to identify who manages and controls the use of the reservoir and is responsible for maintaining compliance with the law. The undertaker is the person, people or company that uses a reservoir for a particular purpose. If there is no use, the owners or lessees are the undertakers. The undertaker may be different from the owner. If several people or organisations manage and control the reservoir, there can be more than one undertaker.

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Data links

Link to the data Format File added Data preview
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Additional information

View additional metadata
Added to data.gov.uk
2024-05-31
Access contraints
Access to this data may be restricted under relevant legislation. NRW may NOT publish or disseminate the data freely.
Harvest GUID
NRW_DS125215
Extent
Latitude: 53.513067° to °
Longitude: -5.777741° to -2.608865°
Spatial reference system
Dataset reference date
2023-10-27 (publication)
Frequency of update
Responsible party
Natural Resources Wales (NRW) (owner, custodian, distributor); (originator)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

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