dataset · Wales
Groundwater vulnerability data for Wales
The Environment Agency and Natural Resources Wales have updated its groundwater vulnerability map to reflect improvements in data mapping, modelling capability and understanding of the factors affecting vulnerability. Two new maps are available which show the vulnerability of groundwater to a pollutant discharged at ground level. The potential impact of groundwater pollution is considered using the aquifer designation status which provides an indication of the scale and importance of groundwater
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Licence: ["The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in an
Evidence quality: 42.4
Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- groundwater vulnerability to a pollutant discharged at ground level (two maps)
- Coverage docs-verified
- Wales (extent lat 51.3226° to 53.4586°, lon -5.6374° to -2.6733°)
- Update frequency docs-verified
- as needed (no fixed schedule)
- Access docs-verified
- Open to view/download on data.gov.uk with no auth stated. Not OGL for dataset-derived materials: NERC holds copyright and reproduction requires prior permission from the BGS copyright holder.
Useful for
- Use cases llm-inferred
- Groundwater vulnerability screening for pollution risk at Welsh development or contaminated land sites · Infiltration and SuDS feasibility constraint check against aquifer vulnerability in Wales · Groundwater constraint mapping for siting of fuel storage or waste facilities in Wales
- Audience llm-inferred
- hydrogeologists · contaminated land consultants · drainage engineers · geotechnical engineers · planners
Limitations
- Constraints llm-inferred
- Reproduction and redistribution restricted by NERC/BGS copyright; permission needed · No warranty on quality or accuracy; use is at the customer's own risk · Dataset reference date is 2017-12, though the record was updated 2 October 2026 · Wales only; no coverage outside Wales
Evidence
- https://www.bgs.ac.uk/datasets/groundwater-vulnerability-data/
- https://www.data.gov.uk/dataset/f9587ecd-9faf-483d-8473-b5f92f678aba/groundwater-vulnerability-data-for-wales
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.