UNITED KINGDOM · ENGLAND · LANDSCAPE · WATER
Drinking Water Safeguard Zones (Groundwater)
What this layer shows
Safeguard zones around groundwater drinking supplies, paired with their Source Protection Zones: the catchments where nitrate or pesticide pressure on an aquifer is being managed at the surface. 251 zones.
Publisher and licence
Environment Agency and database rights. Derived from BGS digital data under licence from the British Geological Survey, © NERC
Licence not stated by the publisher
© Environment Agency and database rights. Derived from BGS digital data under licence from the British Geological Survey, © NERC
Where the data comes from
ARCGIS · services1.arcgis.com
Merestone asks this service live for the area on screen. Nothing is copied or stored beyond a short cache.
Facts shown for each feature
Zone · Linked SPZ
In these presets
Contaminated land
Old landfills, regulated waste sites and the water beneath them. England only. No geology, superficial deposits or radon yet: BGS publishes its 625K geology openly and it is on the list. A ground report still has to be commissioned.
Other layers in this group
- Nitrate Vulnerable Zones 2013 (Wales)
- Internal Drainage Districts
- Nitrate Vulnerable Zones 2021
- Drinking Water Safeguard Zones (Surface)
- Principal Salmon Fisheries (England)
- Bathing Waters (England)
- Bathing Waters (Scotland)
- Bathing Waters (Wales)
- Bathing Waters (Northern Ireland)
- Groundwater Bodies (WFD 2025)
- River Water Body Catchments (WFD 2025)
- Statutory Main River Map