9df8df53-2ab9-37a8-e044-0003ba9b0d98 English dataset British Geological Survey +44 28 9038 8462 Dundonald House, Upper Newtownards Road BELFAST BT4 3SB United Kingdom gsni@detini.gov.uk pointOfContact 2026-04-30 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13605503 TM65 / Irish National Grid (EPSG::29900) GSNI GeoIndex Superficial Aquifers 2001 creation http://data.bgs.ac.uk/id/dataHolding/13605503 This map layer shows the distribution of superficial deposits, as mapped at 1:250 000 scale, which are considered to have the potential to store and transmit significant amounts of groundwater. The areas defined are based upon a sub-set of superficial deposits as mapped by GSNI at 1:250 000 scale where the following mapped deposits are considered to have potentially significant permeability and storage properties: glacial sands and gravels, blown sand, raised beach deposits and alluvium. A regional, detailed assessment of the individual deposits in terms of their aquifer potential (aerial extent, thickness, saturated depth etc.) has not yet been undertaken. Hence formal classification of each deposit as an aquifer area is not possible at present. In some cases limited aerial extent or minimal thickness may result in the mapped geological deposit not being considered as an aquifer. Due to natural geological variability and data availability, this map cannot and is not intended to represent actual conditions on a site-specific scale. For site specific investigations more detailed geological and hydrogeological information is available from GSNI. Advice on groundwater management and protection matters is available from the GSNI hydrogeologist or by contacting the Groundwater Team at NIEA. Further information on the hydrogeology of Northern Ireland is available in Hydrogeology of Northern Ireland, Robins N S (1997) and Hydrogeological Map of Northern Ireland, BGS 1994 both of these are available from the BGS bookshop or from the GSNI office (note: the aquifer classification used on the 1994 hydrogeological published map differs from the classification shown on the GeoIndex layer). NOTE: When considering the distribution of aquifers within a certain area, reference should also be made to the bedrock aquifer layer, available on this website. Enquiries British Geological Survey 028 9038 8462 028 9038 8461 Dundonald House, Upper Newtownards Road BELFAST BT4 3SB United Kingdom gsni@economy-ni.gov.uk distributor Enquiries British Geological Survey 028 9038 8462 028 9038 8461 Dundonald House, Upper Newtownards Road BELFAST BT4 3SB United Kingdom gsni@economy-ni.gov.uk pointOfContact Enquiries British Geological Survey 028 9038 8462 028 9038 8461 Dundonald House, Upper Newtownards Road BELFAST BT4 3SB United Kingdom gsni@economy-ni.gov.uk user continual https://resources.bgs.ac.uk/images/geonetworkThumbs/9df8df53-2ab9-37a8-e044-0003ba9b0d98.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Aquifers Hydrogeology Geology Groundwater BGS Thesaurus of Geosciences 2022 revision UK Location (INSPIRE) dataCentre NERC_DDC otherRestrictions Copyright acknowledgement required: Reproduced from the Geological Survey of Northern Ireland, with the permission of the Director.© Crown Copyright. otherRestrictions 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 any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused. limitation not listed. Copyright acknowledgement required: Reproduced from the Geological Survey of Northern Ireland, with the permission of the Director.© Crown Copyright. grid 10000 English geoscientificInformation ISO 3166_1 alpha-3 2009 revision NIR British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation NORTHERN IRELAND [id=181000] -10.6400 -5.4100 51.3600 55.4400 2001 Enquiries British Geological Survey 028 9038 8462 028 9038 8461 Dundonald House, Upper Newtownards Road BELFAST BT4 3SB United Kingdom gsni@economy-ni.gov.uk distributor https://mapapps2.bgs.ac.uk/GSNI_Geoindex/home.html WWW:LINK-1.0-http--link GSNI GeoIndex search dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false This map layer shows the distribution of superficial deposits, as mapped at 1:250 000 scale, which are considered to have the potential to store and transmit significant amounts of groundwater. The areas defined are based upon a sub-set of superficial deposits as mapped by GSNI at 1:250 000 scale where the following mapped deposits are considered to have potentially significant permeability and storage properties: glacial sands and gravels, blown sand, raised beach deposits and alluvium. A regional, detailed assessment of the individual deposits in terms of their aquifer potential (aerial extent, thickness, saturated depth etc.) has not yet been undertaken. Hence formal classification of each deposit as an aquifer area is not possible at present. In some cases limited aerial extent or minimal thickness may result in the mapped geological deposit not being considered as an aquifer. Due to natural geological variability and data availability, this map cannot and is not intended to represent actual conditions on a site-specific scale. For site specific investigations more detailed geological and hydrogeological information is available from GSNI. Advice on groundwater management and protection matters is available from the GSNI hydrogeologist or by contacting the Groundwater Team at NIEA. Further information on the hydrogeology of Northern Ireland is available in Hydrogeology of Northern Ireland, Robins N S (1997) and Hydrogeological Map of Northern Ireland, BGS 1994 � both available from the BGS bookshop or from the GSNI office (note: the aquifer classification used on the 1994 hydrogeological published map differs from the classification shown on the GeoIndex layer). NOTE: When considering the distribution of aquifers within a certain area, reference should also be made to the bedrock aquifer layer, available on this website.