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

• Published by: Environment Agency
• Last updated: 06 July 2026

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 It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...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: 3.3 percent annual chance

• Published by: Environment Agency
• Last updated: 06 July 2026

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 It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...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 Hazard: 3.3 percent annual chance

• Published by: Environment Agency
• Last updated: 06 July 2026

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 It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...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: 06 July 2026

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 It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...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: 06 July 2026

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 It has been superseded by: https://environment.data.gov.uk/dataset/b5aaa28d-6eb9-460e-8d6f-43caa71fbe0e This dataset is not suitable for identifying...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: 06 July 2026

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: 06 July 2026

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: 06 July 2026

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: 06 July 2026

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: 06 July 2026

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...

Flood Map for Planning – Surface Water Spatial Planning Depths – Present Day

• Published by: Environment Agency
• Last updated: 06 July 2026

The Flood Map for Planning Service includes several layers of information. This includes Surface Water Spatial Planning Depths. These datasets show the extent of land at risk of flooding from...

Flood Map for Planning – Surface Water Spatial Planning Extents – Present Day

• Published by: Environment Agency
• Last updated: 06 July 2026

The Flood Map for Planning Service includes several layers of information. This includes Surface Water Spatial Planning Extents. These datasets show the extent of land at risk of flooding from...

Flood Map for Planning – Surface Water Spatial Planning Depths – Climate Change

• Published by: Environment Agency
• Last updated: 06 July 2026

The Flood Map for Planning Service includes several layers of information. This includes Surface Water Spatial Planning Depths. These datasets show the extent of land at risk of flooding from...

Flood Map for Planning – Surface Water Spatial Planning Extents – Climate Change

• Published by: Environment Agency
• Last updated: 06 July 2026

The Flood Map for Planning Service includes several layers of information. This includes Surface Water Spatial Planning Extents. These datasets show the extent of land at risk of flooding from...