Flood Alert Info - Groundwater flooding in South East London
Area Description
Areas at risk from Groundwater flooding including Caterham Bourne, Coulsdon Bourne, Beddington, Carshalton, Coulsdon, Kenley, Purley, South Croydon, Whyteleafe, Bromley, Bexley, Greenwich and Lewisham.
This is a Flood Alert Area. For this area the highest level of flood notification that you will receive is a Flood Alert. No Flood Warnings or Severe Flood Warnings are issued for this area.
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There are no Flood Alerts currently in force for this area. See below for historical flood warnings.
Area Covered by this Flood Alert
The orange highlighted area on the map below outlines the area covered by this Flood Alert.
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Flood Alert History
Number of historic Flood Alerts that have previously been recorded for this area:
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Historical Flood Alerts for this Area
Flood Alert issued on 14 May 2024 16:33
Groundwater
Groundwater levels in East Surrey and South London rose during the winter following higher than average rainfall. Levels continued rising until late March and remained high in April. The Caterham Bourne is in flow since mid-March and is still flowing in the Whyteleafe and Kenley area, and the Environment Agency is monitoring the levels and flow of the Bourne in Kenley Bourne Park.
However, groundwater levels across the area have now started to fall, although some properties with deep basements in and around Purley and low-lying land near the Caterham Bourne could still experience flooding.
Whilst property and garden flood risks have reduced, riparian owners are reminded to keep clear any sections of river that flow through their land. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Thursday 23 May 2024, or sooner if the situation changes.
Flood Alert issued on 2 May 2024 17:12
Groundwater
Groundwater levels in East Surrey and South London rose during the winter following higher than average rainfall. Levels continued to increase until the second half of March in response to heavy rainfall and have remained high in April. The Caterham Bourne is in flow since mid-March and is still flowing in the Whyteleafe and Kenley area and the Environment Agency is monitoring the levels and flow of the Bourne in Kenley Bourne Park. Some properties with deep basements in and around Purley and low lying land near the Caterham Bourne could still experience flooding.
Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Thursday 15 May 2024, or sooner if the situation changes.
Flood Alert issued on 24 Apr 2024 14:04
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and until the second half of March in response to heavy rainfall and storm events during the previous month. The Caterham Bourne is in flow since mid-March and is still flowing in the Whyteleafe and Kenley area and the Environment Agency is monitoring the levels and flow of the Bourne in Kenley Bourne Park. At times of very heavy rainfall, some properties with deep basements and low lying land in and around Purley and the Caterham Bourne could still experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Thursday 2 May 2024, or sooner if the situation changes.
Flood Alert issued on 22 Apr 2024 16:52
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and until the second half of March in response to heavy rainfall and storm events during the previous month. The Caterham Bourne is in flow since mid-March and is still flowing in the Whyteleafe and Kenley area and the Environment Agency is monitoring the levels and flow of the Bourne in Kenley Bourne Park. At times of very heavy rainfall, properties with deep basements and low lying land in and around Purley and the Caterham Bourne could still experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Thursday 2 May 2024, or sooner if the situation changes.
Flood Alert issued on 10 Apr 2024 13:10
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and until the second half of March in response to heavy rainfall and storm events during the previous month. The Caterham Bourne is in flow since mid-March and is still flowing in the Whyteleafe and Kenley area and the Environment Agency is monitoring the levels and flow of the Bourne in Kenley Bourne Park.
At times of very heavy rainfall, properties with deep basements and low lying land in and around Purley and the Caterham Bourne could still experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time.
The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Wednesday 17 April 2024, or sooner if the situation changes.
Flood Alert issued on 3 Apr 2024 16:52
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and until the second half of March in response to heavy rainfall and storm events during the previous month. The Caterham Bourne between Woldingham and Purley is now flowing along its course. On 15 March 2024, the Environment Agency installed equipment to monitor the flow and levels on the Caterham Bourne in Kenley Bourne Park.
Properties with deep basements and low lying land in and around Purley and the Caterham Bourne may experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time.
The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Wednesday 10 April 2024, or sooner if the situation changes.
Flood Alert issued on 27 Mar 2024 13:33
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and until the second half of March in response to heavy rainfall and storm events during the previous month. The Caterham Bourne between Woldingham and Purley is now flowing along its course. On 15 March 2024, the Environment Agency installed equipment to monitor the flow and levels on the Caterham Bourne in Kenley Bourne Park.
Properties with deep basements and low lying land in and around Purley and the Caterham Bourne may experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time.
The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Wednesday 3 April 2024, or sooner if the situation changes.
Flood Alert issued on 20 Mar 2024 13:41
Groundwater
Be prepared.
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and March in response to heavy rainfall and storm events. The Caterham Bourne between Woldingham and Purely is now flowing along its course. On 15 March 2024, the Environment Agency installed equipment to monitor the flow and levels on the Caterham Bourne in Kenley Bourne Park.
Properties with deep basements and low lying land in and around Purley and the Caterham Bourne may experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time.
The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Wednesday 27 March 2024, or sooner if the situation changes.
Flood Alert issued on 13 Mar 2024 13:43
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and early March in response to heavy rainfall and storm events. The Caterham Bourne between Woldingham and Purely is now flowing in certain sections along its course. Properties with deep basements and low lying land in and around Purley and the Caterham Bourne may experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time.
Flood Alert issued on 6 Mar 2024 17:09
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and early March in response to heavy rainfall and storm events. The Caterham Bourne between Woldingham and Purley is close to flowing. Properties with deep basements and low lying land in and around Purley and the Caterham Bourne may experience flooding. Riparian owners are reminded to keep clear the sections of river that flow through their land. Flooding of properties, gardens and low lying land elsewhere is not expected at this point in time.
The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Wednesday 13 March, or sooner if the situation changes.
You can search South London groundwater situation on gov.uk
Flood Alert issued on 31 Mar 2020 11:09
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and early March in response to heavy rainfall and storm events. Groundwater levels currently remain high but stable with the onset of drier conditions. Properties with deep basements in and around Purley may experience flooding. However, due to the nature of groundwater flooding, other properties across East Surrey and South London may also experience flooding. The Caterham Bourne between Woldingham and Purley is now flowing, but remains in channel and is not considered a flood risk without further heavy rainfall. Flooding of gardens and low lying land may occur. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Tuesday 7 April, or sooner if the situation changes.
Flood Alert issued on 24 Mar 2020 10:57
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels continued to increase through most of February and early March in response to heavy rainfall and storm events. Groundwater levels currently remain high but stable with the onset of dryer conditions. Properties with deep basements in and around Purley may experience flooding. However, due to the nature of groundwater flooding, other properties across East Surrey and South London may also experience flooding. The Caterham Bourne between Woldingham and Purley is now flowing, but remains in channel and is not considered a flood risk without further heavy rainfall. Flooding of gardens and low lying land may occur. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Tuesday 31 March, or sooner if the situation changes.
Flood Alert issued on 17 Mar 2020 11:18
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter, following higher than average rainfall. Levels increased through most of February in response to rainfall received during Storms Ciara and Dennis, and have continued to rise further in response to the early March heavy rainfall event. Properties with deep basements in and around Purley may experience flooding. However, due to the nature of groundwater flooding, other properties across East Surrey and South London may also experience flooding. The Caterham Bourne between Woldingham and Purley is now flowing, but remains in channel and is not considered a flood risk without further heavy rainfall. Flooding of gardens and low lying land may occur. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Tuesday 24 March, or sooner if the situation changes.
Flood Alert issued on 10 Mar 2020 09:56
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Levels have continued to increase through most of February in response to rainfall received during Storms Ciara and Dennis, and have continued to rise further with the early March heavy rainfall event. Properties with deep basements in and around Purley may soon experience flooding. However, due to the nature of groundwater flooding, other properties across East Surrey and South London may also experience flooding. The Caterham Bourne between Woldingham and Purley is now flowing but remains in channel and is not considered a flood risk without further heavy rainfall where flooding of gardens and low lying land may occur. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message on Tuesday 17 March, or sooner if the situation changes.
Flood Alert issued on 3 Mar 2020 13:45
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Since mid-February, levels have increased rapidly in response to rainfall received during Storms Ciara and Dennis. Properties with deep basements in and around Purley may soon experience flooding. However, due to the nature of groundwater flooding, other properties across East Surrey and South London may also experience flooding. The Caterham Bourne between Woldingham and Purley is now flowing but remains in channel and is not currently increasing flood risk. Further rainfall could cause groundwater levels to rise further increasing the flood risk. The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message by Tuesday 10 March, or sooner if the situation changes.
Flood Alert issued on 25 Feb 2020 13:46
Groundwater
Groundwater levels in East Surrey and South London have been rising throughout the winter following higher than average rainfall. Since mid-February, levels have increased rapidly in response to rainfall received during Storms Ciara and Dennis.
We expect properties with deep basements in Dale Road and Godstone Road in Purley will start flooding imminently. However, due to the nature of groundwater flooding, other properties may also experience flooding too.
The Caterham Bourne between Woldingham and Purley is now flowing but remains in channel and is not currently increasing flood risk.
Further rainfall could cause groundwater levels to rise further.
The Environment Agency is monitoring the situation alongside Surrey County Council, Tandridge District Council and the London Borough of Croydon. We will update this message by Tuesday 3 March, or sooner if the situation changes.