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 A newer version of this data is now available.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
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
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These data have been mostly superseded by the Aquifer Designation Maps however, these maps do not provide information on surface soils.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
Temporal Extent
- Begin date
- 1990-01-01
- End date
- 2008-12-31
- Topic category
-
- Geoscientific information
Extent
Extent
- Geographic Extent
- England (ENG)
- Geographic Extent
- Wales (WLS)
))
Distribution
- Format Type and Description
-
-
Geographic Information System
()
- Specification
-
ESRI Feature Class
-
Geographic Information System
()
Quality
Data quality
- Quality Scope
- Dataset
- 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
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
-
- groundwater
- flood risk
- hydrogeology
- soils
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- Integrated Public Sector Vocabulary
-
- environmental protection
- geology
- Type
- Theme
Citation
- Date (Revision)
- 2013-04-03
Keywords
-
NRW SMNR Vocabulary
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- Cultural Services (SMNR)
- Water Resources (SMNR)
- Sustainable Management of Natural Resources (SMNR)
- Ecosystem (SMNR)
- Management Areas (SMNR)
- Regulating Services (SMNR)
- Natural Resources (incl. Features and Processes) (SMNR)
- Soil and Land (SMNR)
- Provisioning Services (SMNR)
- Ecosystem Services (SMNR)
- Soils (SMNR)
- Freshwater and Wetlands (SMNR)
- Water Quality (SMNR)
- Hydrological Processes (SMNR)
- Type
- Theme
Citation
- Date (Revision)
- 2023-12-27
Spatial Reference System
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
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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
- 2024-05-31T09:09:19.615Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0