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Dataset title	BGS Permeability Index version 8
Dataset creators	British Geological Survey
Dataset theme	Geoscientific Information
Dataset abstract	The BGS Permeability Index dataset shows estimated rates of water movement from the ground surface to the water table. The v8 dataset incorporates the latest geology mapping (BGS Geology 50k). This includes updates to the lithology-coding schema, the LEX_RCS. A 2-part code used to identify the named rock unit from the BGS lexicon of named rock units (LEX) followed by a Rock Classification Scheme (RCS) code which describes the rocks lithological characteristics e.g. texture and composition. Updates to these codes and latest dissolution hazard data sourced from BGS GeoSure: Soluble Rocks have been reviewed and classified as part of the version 8 release. The dataset covers Great Britain and is presented at a scale of 1:50 000, based on the geological data at the same scale. However, in areas where the geology is not mapped to this scale, the next best available scale is used. The BGS Permeability Index can be used to compare the relative permeability of deposits at the regional scale, indicating where highly permeable rocks could allow rapid infiltration to occur, or where less permeable rocks are present and water could pond on the ground surface. The dataset can be used as a component in a wide range of geo-environmental assessments such as natural flood management, Sustainable Drainage Systems, engineering desk studies, slope stability, and aquifer vulnerability. It is for use at the regional scale and is not recommended for use at the site-specific scale.
Dataset content dates	before 2017
Dataset spatial coverage	Great Britain North: 60.866269 South: 49.846369 East: 2.697705 West: -8.344021
Dataset supply format	ESRI Shapefile (.shp)
Dataset language	English-United Kingdom
Dataset discovery metadata record	Discovery Link to the dataset's BGS Discovery Metadata record
Dataset publisher	British Geological Survey
Dataset publication date	2021
Dataset digital object identifier(DOI)	10.5285/7f9c6bb5-1e7a-4405-ae59-d893a80df2b3
Dataset citation text	British Geological Survey (2021): BGS Permeability Index version 8. British Geological Survey. (Dataset). https://doi.org/10.5285/7f9c6bb5-1e7a-4405-ae59-d893a80df2b3
Constraints and terms of use	This data set is issued to third parties under BGS data licensing terms.
Access the dataset	Contact BGS enquiries, enquiries@bgs.ac.uk
Further information	https://www.bgs.ac.uk/datasets/permeability/.