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EA Hydrological Boundaries
The Hydrological Areas are a polygon dataset showing 139 hydrological units across England and parts of Wales, that have been defined by the Environment Agency. The units show... -
Drinking Water Safeguard Zones (Surface Water)
Drinking Water Safeguard Zones (Surface Water) are catchment areas that influence the water quality for their respective Drinking Water Protected Area (Surface Water). They are... -
Drinking Water Protected Areas (Surface Water)
Drinking Water Protected Areas (Surface Water) are defined by the Water Environment (Water Framework Directive) (England & Wales) Regulations 2017 (or WFD Regulations) as... -
Digital Land Utilisation Survey 1933-1949
These data are a digital version of the 1 inch to 1 mile ‘Dudley Stamp Maps’ that provide a pre-war land survey. These data have been scanned and digitised and contain the... -
Consented Discharges to Controlled Waters with Conditions
These data provide details of all permit details as required under the Environmental Permit Regulation. Information is held for all permit holders and covers all substances that... -
Historic Landfill Sites - Quarterly Summary
This data is a national historic landfill dataset that defines the location of and provides specific attributes for known historic landfill sites. An historic landfill is a site... -
AIMS Channel
An asset that conveys water Asset Sub-Types include: Complex Culvert, Open Channel, Simple Culvert See the Data Requirements Library for more detail:... -
Reservoir Flood Extents - Fluvial Contribution (National)
This data shows the extent of river flooding added to the reservoir model to determine the impacts of failure on a wet-day. It is not exactly the same as the flooding from... -
NCEA Small Streams Network Analysis Ready Data
The NCEA is Defra's largest research and development (R&D) programme. It will produce a baseline of our natural assets by 2029; enabling a natural capital approach to policy... -
NCEA River Surveillance Network Analysis Ready Data
The NCEA is Defra's largest research and development (R&D) programme. It will produce a baseline of our natural assets by 2029; enabling a natural capital approach to policy... -
Flood Warning Areas
This record is for Approval for Access product AfA054 Flood Warning Areas. These are geographical areas where we expect flooding to occur and where we provide a Flood Warning... -
Flood Alert Areas
This record is for Approval for Access product AfA055. Flood Alert Areas are geographical areas where it is possible for flooding of low-lying land and roads to occur from... -
Water Framework Directive (WFD) River, Canal, and Surface Water Transfer...
This is a polyline dataset showing Water Framework Directive (WFD) River, Canal, and Surface Water Transfer Water Bodies. River centrelines represent the official river water... -
Reservoir Flood Extents - Wet Day (National)
This data shows the individual flood extents for all large raised reservoirs in the event that they were to fail and release the water held on a “wet day” when local rivers had... -
Reservoir Flood Extents - Dry Day (National)
This data shows the individual flood extents for all large raised reservoirs in the event that they were to fail and release the water held on a “dry day” when local rivers are... -
Environmental Permitting Regulations - Waste Sites Quarterly Summary
A waste management licence was a legal document issued under the Environmental Protection Act 1990. A licence authorised the treatment keeping or disposal of waste in or on the... -
Environmental Permitting Regulations - Landfill Sites Quarterly Summary
The Environmental Permitting Regulations brought together the IPPC (Integrated Pollution Prevention and Control) Directive (EC/61/96) and the Waste Management Licensing... -
Environmental Permitting Regulations - Industrial Sites Quarterly Summary
The Environmental Permitting Regulations amongst other things implement the IPPC (Integrated Pollution Prevention and Control) Directive (EC/61/96) in England and Wales.... -
Saltmarsh Extent & Zonation
Saltmarsh Extent and Zonation Summary: The Saltmarsh Extent & Zonation V4_10 layer was mapped from aerial photography collected predominantly between 2016 and 2019. Dataset... -
Historic Flood Map
The Historic Flood Map is a GIS layer showing the maximum extent of individual Recorded Flood Outlines from river, the sea and groundwater springs that meet a set criteria. It...