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It is essential that work is done to improve understanding of the scale of surface...
Recommendation
It is essential that work is done to improve understanding of the scale of surface water flood risk at a national and local level. In particular, we are concerned to hear evidence of surface and foul water flooding caused or exacerbated by the failure to adequately maintain drainage systems. It is difficult to determine the scale of this risk due to the lack of centralised information on the capacity of sewer systems. The Government should quantify the surface water element of its overall ambition for flood resilience. In its update on the Surface Water Management Action Plan, it should also explain how it will improve the collection and sharing of data on drainage and sewerage capacity.
Paragraph Reference
111
Government Response
Not Addressed
Government Response
Not Addressed
HM Government
Not Addressed
Mitigating the impacts from all forms of flood and coastal erosion risk is a priority and this includes surface water (pluvial) flooding, which is the most widespread in England and affects around 3.2 million properties. In 2020 the Government amended the partnership funding formula to include a new risk category which will enable more surface water flooding schemes to qualify for Government funding. The Government has made progress at better understanding the scale of surface water flood risk at a national and local level and has provided grants to 28 lead local flood authorities to update their surface water risk maps, benefiting 2.4 million people. These improvements will strengthen the next update of surface water risk maps and the Government’s next National Flood Risk Assessment update, providing an improved, single picture of current and future risk, including surface water. Alongside this, the Environment Agency is delivering actions in the Government’s Surface Water Management Action Plan,25 through enhanced modelling, mapping and communication. The Government has also committed to going further; requiring water and sewerage companies to develop statutory Drainage and Sewerage Management Plans, which will include a full assessment of network capacity, short- and long-term infrastructure needs and the impact of their activities on the environment. It has also set up a Storm Overflows Taskforce, which has set a long-term goal to eliminate harm from sewage discharges. This Taskforce is considering drainage issues and the impacts of sewage discharges on people and the environment and the Government has already announced some legislatives changes.26 The Government will be providing an update on progress with the Surface Water Management Action Plan, which includes actions on data sharing, in 2021, and will also be formally responding to the independent review into the arrangements for determining responsibility for surface water and drainage assets,27 which was published in August 2020.
Timeline
Recommendation age
5.3 yrs
Report published
08 Feb 2021