Groundwater Vulnerability (1990 - 2008)

This is a spatial dataset of Groundwater Vulnerability between 1990 and 2008 residing as a reference or archived dataset in Natural Resources Wales' geodatabases. A newer version of this data is now available. This older 1990 - 2008 data consists of two polygon spatial layers available at a scale of 1:100,000. These are Groundwater Vulnerability Zones, and Groundwater Vulnerability Zones Drift. The data broadly define areas relevant to the protection of groundwater. The approach considers the vulnerability of the groundwater resources as a whole; and the specific importance of areas which for the catchments main sources of supply. Groundwater resources are assigned a vulnerability class [Groundwater Vulnerability 100K], based on soil type and the underlying geology only (e.g. depth to groundwater is not considered): - Variably permeable groundwater with low leaching potential - Variably permeable groundwater with intermediate leaching potential - Variably permeable groundwater high leaching potential - Highly permeable groundwater with intermediate leaching potential - Highly permeable groundwater with high leaching potential - Highly permeable groundwater with low leaching potential The Groundwater Vulnerability data is intended to be used to indicate where groundwater resources may be vulnerable from activities carried out on the surface land. Other information, such as depth of groundwater and thickness and type of overlying cover will always be required for a site-specific assessment. An assessment of the vulnerability of groundwaters to diffuse pollution is also included as the Groundwater Vulnerability Drift 100K spatial layer ('Drift' is transported rock debris overlying the solid bedrock) - it shows the distribution of low permeability drift deposits and should be used in conjunction with Groundwater Vulnerability 100K.

Identification

Identifier
NRW_DS116262
Alternative Title
  • Groundwater Vulnerability Zones drift.LYR
  • Groundwater Vulnerability Zones.LYR
  • Groundwater Vulnerability Zones Drift
  • Groundwater Vulnerability Zones
  • Perygl Dŵr Daear
  • AfA199 Groundwater Vulnerability
Metadata Language
English
Lineage

These data have been mostly superseded by the Aquifer Designation Maps however, these maps do not provide information on surface soils. Aquifers previously designated as major and minor now become principal and secondary respectively. Users will still need to refer to the Groundwater Vulnerability maps if you are assessing activities on undisturbed natural soils (e.g. agricultural land) and need the soil classes. In this case you should disregard the old geological classes and combine the soils information with the new aquifer designations.
Additional Information

This dataset has subsequently been updated. Please refer to the Groundwater Vulnerability 2018 NRW_DS120494 for the most up to date version of the data: https://libcat.naturalresources.wales/webview/?infile=details.glu&loid=120494&rs=674418&hitno= 2

Dataset Reference Date (Publication)
2020-07-21
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Environment Agency Wales
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://www.environment-agency.gov.uk/regions/wales
Originator
  Environment Agency (EA)
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://www.environment-agency.gov.uk/
 

Extent

Extent

Geographic Extent
England (ENG)
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Format Type and Description
  • Geographic Information System ( )

    Specification

    ESRI Feature Class

 

Quality

Data quality

Quality Scope
Dataset
Conformity
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
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

These data have been mostly superseded by the Aquifer Designation Maps however, these maps do not provide information on surface soils. Aquifers previously designated as major and minor now become principal and secondary respectively. Users will still need to refer to the Groundwater Vulnerability maps if you are assessing activities on undisturbed natural soils (e.g. agricultural land) and need the soil classes. In this case you should disregard the old geological classes and combine the soils information with the new aquifer designations.
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus
  • flood risk
  • hydrogeology
  • groundwater
  • SOILS
Type
Theme

Citation

Date (Publication)
2025-01-08
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

IPSV Subjects List
  • Geology
  • Environmental protection
Type
Theme

Citation

Date (Publication)
2020-11-18
Code
geonetwork.thesaurus.external.theme.subjects

Keywords

NRW SMNR Keywords
  • Management Areas (SMNR)
  • Regulating Services (SMNR)
  • Natural Resources (Incl. Features and Processes) (SMNR)
  • Freshwater and Wetlands (SMNR)
  • Ecosystem (SMNR)
  • Soils (SMNR)
  • Sustainable Management of Natural Resources (SMNR)
  • Ecosystem Services (SMNR)
  • Soil and Land (SMNR)
  • Water Resources (SMNR)
  • Cultural Services (SMNR)
  • Provisioning Services (SMNR)
  • Water Quality (SMNR)
  • Hydrological Processes (SMNR)
Type
Theme

Citation

Date (Publication)
2024-06-26
Code
geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

This data is jointly owned by NRW and BGS There are no access restrictions on this data. However, there are third party use restrictions.
 

Use Constraints

Use constraints type
Other restrictions
Other constraints

NRW does NOT grant permission to third parties to re-use or disseminate this dataset. In some cases the dataset may be made available for non-commercial purposes . For commercial use please contact the British Geological Survey.
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-313136323632 XML
Metadata Language
English
Resource type
Dataset
Metadata Date
2025-03-07T15:39:04.019Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

pointOfContact
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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