Nitrate Vulnerable Zones (NVZ)
Nitrate Vulnerable Zones (NVZs) were areas within Wales that contain surface water or groundwater that is susceptible to nitrate pollution from agricultural activities. They were designated in 2013 accordance with the requirements of the European Commission’s Nitrates Directive 91/676/EEC, which aimed to protect water quality across Europe by preventing nitrates from agricultural sources polluting ground and surface waters and by promoting the use of good farming practices. In April 2021 the designated NVZs in Wales were revoked by the introduction of the Water Resources (Control of Agricultural Pollution)(Wales) Regulations with some measures transitioning into law over a period of time. The transition periods do not apply to those farms located in previously designated NVZ where all the measures within CoAPR apply immediately. This dataset is relevant until all measures transition into law.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS116240
- Alternative Title
-
- AfA 169
- Metadata Language
- English
- Lineage
-
The Nitrate Vulnerable Zone boundaries were delineated using a Geographical Information System. The first step was to look at the previous NVZ boundaries and compare them with ground water body data from BGS. This information was used to produce a first draft of the new boundaries, which were then clipped to field boundaries and put out to consultation. Following responses from the consultation, amendments were made to the boundaries which also considered estimated borehole catchments. Next, boundaries were re-adjusted to field boundaries and the mean high water spring tide mark (unless fields fell below the mean high water spring tide mark).
- Dataset Reference Date (Publication)
- 2017-01-12
Temporal Extent
- Begin date
- 2008-01-01
- End date
- 2013-01-01
- Topic category
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- Inland waters
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
Distribution
- Format Type and Description
-
-
Geographic Information System
Geographic Information System
()
- Specification
-
Esri Format
-
Geographic Information System
Geographic Information System
()
- Resource Locator
-
Download Data and Web Service
World Wide Web page
- Resource Locator
-
Web Mapping Service
World Wide Web page
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
The Nitrate Vulnerable Zone boundaries were delineated using a Geographical Information System. The first step was to look at the previous NVZ boundaries and compare them with ground water body data from BGS. This information was used to produce a first draft of the new boundaries, which were then clipped to field boundaries and put out to consultation. Following responses from the consultation, amendments were made to the boundaries which also considered estimated borehole catchments. Next, boundaries were re-adjusted to field boundaries and the mean high water spring tide mark (unless fields fell below the mean high water spring tide mark).
Keywords
Keywords
Keywords
- NRW Thesaurus
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- nitrates (nitrogen)
- nitrate sensitive areas
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
-
NRW SMNR Vocabulary
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- Natural Resources (incl. Features and Processes) (SMNR)
- Soils (SMNR)
- Ecosystem Services (SMNR)
- Geodiversity (SMNR)
- Sustainable Management of Natural Resources (SMNR)
- Water Resources (SMNR)
- Cultural Services (SMNR)
- Management Areas (SMNR)
- Water Quality (SMNR)
- Regulating Services (SMNR)
- Minerals (SMNR)
- Hydrological Processes (SMNR)
- Provisioning Services (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
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Attribution Statement: © CNC/NRW All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right
Attribution Statement
- Other constraints
- Open Government Licence (OGL)
Licence
- Other constraints
- Open Government Licence (OGL)
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313136323430 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2024-05-30T14:09:16.882Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0