Hydrogeological maps of Scotland

BGS Datasets

Key information

1:100 000
GIS polygon data (ESRI, MapInfo, others available by request)

£0.42 per km2. Subject to number of users, licence fee and data preparation fee.

Local-level use

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Free access

Our free data is available under the Open Government Licence. Please acknowledge reproduced BGS materials.

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Supporting documents

The BGS has produced a suite of hydrogeological maps of Scotland. The suite comprises two layers: groundwater vulnerability and aquifer productivity (bedrock and superficial).

Groundwater vulnerability layer

Groundwater vulnerability is the tendency and likelihood for general contaminants to move vertically through the unsaturated zone and reach the water table after introduction at the ground surface. The groundwater vulnerability map shows the relative vulnerability to contamination of groundwater at the uppermost water table.

Aquifer productivity layer

The aquifer productivity maps describe the potential of bedrock and superficial deposit aquifers across Scotland to sustain various levels of borehole water supply, plus the dominant groundwater flow type in each aquifer. They have been used to help characterise groundwater bodies as required by the Water Framework Directive and are useful in policy development to prioritise water supply and site investigations, to inform planning decisions and to improve awareness of groundwater in general.

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