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Nitrate Vulnerable Zones (NVZ) 2021 Designations

Nitrate Vulnerable Zones (NVZ) 2021 Designations

Summary

This dataset identifies Nitrate Vulnerable Zones for implementation in 2021.

The designations are made by the Secretary of State for the purposes of the Nitrate Pollution Prevention Regulations 2015 (England). This dataset supersedes the previous dataset ‘Nitrate Vulnerable Zones (NVZ) 2017 – Combined (Final Designations)’.

Nitrate Vulnerable Zones (NVZs) are areas designated as being at risk from agricultural nitrate pollution. Waters are defined within the Nitrates Directive and Nitrate Regulations as polluted if they:

contain or could contain, if preventative action is not taken, nitrate concentrations greater than 50mg/l
are eutrophic, or become eutrophic, if preventative action is not taken.

To view maps and NVZ datasheets use 'Check for Drinking Water Safeguard Zones (SgZs) and Nitrate Vulnerable Zones (NVZs) Interactive Map'

Keywords

Use limitation statement

There are no public access constraints to this data. Use of this data is subject to the licence identified.

Licence

Open Government Licence

Attribution statement

© Environment Agency copyright and/or database right 2023. All rights reserved. Derived in part from geological mapping data provided by the British Geological Survey © NERC. Derived in part from data provided by the National Soils Research Institute © Cranfield University. Contains Ordnance Survey data © Crown copyright and database rights 2016. Derived in part from data provided by the Department for the Environment, Farming and Rural Affairs © Crown 2016 copyright Defra. Derived in part from data provided by the Centre for Ecology and Hydrology © NERC. Derived in part from data provided by UK Water Companies.

Technical information

Update frequency

asNeeded

Lineage

This datasets was created from modelling using the following data sources: Digital 1:50,000 river centre-lines (Centre for Ecology and Hydrology), CEH Land cover map of Great Britain (Centre for Ecology and Hydrology), Geology (British Geological Survey), Population statistics per Super Output Area (Office of National Statistics), CORNINE 2006 land use maps (European Environment Agency). National Property Database 2008 (ODPM), Flow Data (Centre for Ecology and Hydrology / Wallingford HydroSolutions), NEAP-N agricultural loads (ADAS / Defra), Source Protection Zones (Environment Agency), WIMS monitoring data (Environment Agency), Water Framework Directive River Waterbodies (Environment Agency) Water Framework Directive River Catchment Waterbodies (Environment Agency), Water Framework Directive Groundwater Waterbodies (Environment Agency), Water Framework Directive Classification (Environment Agency), Water company monitoring data (UK Water Companies), Consented discharges (Environment Agency), HOST database (National Soil Research Institute / Centre for Ecology and Hydrology), Customer and Land Database (Rural Payments Agency), 50m Digital Terrain model (Nextmap), MasterMap (Ordnance Survey), Meridian (Ordnance Survey).

Spatial information

Coordinate reference system

http://www.opengis.net/def/crs/EPSG/0/27700

Geographic extent

Latitude from: 49.922187 to 55.956737
Longitude from: -6.441658 to 2.170246

Metadata information

Language

English

Metadata identifier

60be356d-6475-4d51-9572-9f8c09f1a764

Published by

Environment Agency

Contact publisher

Defra Data Services Forum

Dataset reference dates

Creation date

17 December 2020

Revision date

N/A

Publication date