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Risk of Flooding from Surface Water Hazard: 3.3 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Speed: 0.1 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Depth: 0.1 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Depth: 3.3 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water

• Published by: Natural Resources Wales
• Last updated: 14 October 2025

The surface water flood maps give an indication of the broad areas likely to be at risk of surface water flooding. This includes flooding that takes place from the surface runoff generated by...

Risk of Flooding from Surface Water

• Published by: Natural Resources Wales
• Last updated: 22 June 2023

The surface water flood maps give an indication of the broad areas likely to be at risk of surface water flooding. This includes flooding that takes place from the surface runoff generated...

Risk of Flooding from Surface Water Direction (25m): 1 percent annual chance

• Published by: Environment Agency
• Last updated: 25 July 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Direction (2m): 1 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Direction (2m): 0.1 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Direction (25m): 0.1 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Direction (25m): 3.3 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Risk of Flooding from Surface Water Direction (2m): 3.3 percent annual chance

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...

Working with Natural Processes (WWNP) in Wales: Runoff Attenuation Features 3.3% AEP

• Published by: Natural Resources Wales
• Last updated: 14 October 2025

Runoff Attenuation Features Potential is our best estimate of locations of high flow accumulation across the land surface or in smaller channels, where it may be possible to temporarily store water...

Working with Natural Processes (WWNP) in Wales: Runoff Attenuation Features 1% AEP

• Published by: Natural Resources Wales
• Last updated: 14 October 2025

Runoff Attenuation Features Potential is our best estimate of locations of high flow accumulation across the land surface or in smaller channels, where it may be possible to temporarily store water...

Working with Natural Processes (WWNP) in Wales: Runoff Attenuation Features 3.3% AEP

• Published by: Natural Resources Wales
• Last updated: 14 February 2023

Runoff Attenuation Features Potential is our best estimate of locations of high flow accumulation across the land surface or in smaller channels, where it may be possible to temporarily store...

Working with Natural Processes (WWNP) in Wales: Runoff Attenuation Features 1% AEP

• Published by: Natural Resources Wales
• Last updated: 14 February 2023

Runoff Attenuation Features Potential is our best estimate of locations of high flow accumulation across the land surface or in smaller channels, where it may be possible to temporarily store...

WWNP Runoff Attenuation Features 3.3% AEP

• Published by: Environment Agency
• Last updated: 12 September 2025

This dataset has been produced as part of the Mapping Potential for Working with Natural Processes research project (SC150005). The project created a toolbox of mapped data and methods which enable...

WWNP Runoff Attenuation Features 1% AEP

• Published by: Environment Agency
• Last updated: 12 September 2025

This dataset has been produced as part of the Mapping Potential for Working with Natural Processes research project (SC150005). The project created a toolbox of mapped data and methods which enable...

Risk of Flooding from Multiple Sources: Risk Band

• Published by: Environment Agency
• Last updated: 01 August 2025

PLEASE NOTE: This record has been retired. Flood risk information for Risk of Flooding from Rivers and Sea and Risk of Surface Water is available This dataset is not suitable for identifying...

Risk of Flooding from Multiple Sources: Suitability

• Published by: Environment Agency
• Last updated: 12 September 2025

PLEASE NOTE: This record has been retired. Flood risk information for Risk of Flooding from Rivers and Sea and Risk of Surface Water is available This dataset is not suitable for identifying...