CC/FM: Flooding and integrated water management

4.22. The emerging policy sets a requirement for new development to provide integrated water management, including SuDS, where surface water is managed close to its source and on the surface where possible. In addition, potential flood risk from developments will need to be fully addressed and account for potential climate change impacts.
4.23. North Cambourne is located in Flood Zone 1, so is at low risk of flooding from rivers and the sea. However, there are some isolated areas of the site at risk of surface water flooding, adjacent to existing watercourses. Through an integrated sitewide SuDS strategy, this risk will be mitigated within public open spaces and potentially mitigated through a centralised rainwater harvesting system to reduce potable water consumption.
4.24. The SuDS strategy will aim to ensure that the peak runoff rate post development is no greater than that which currently exists on the site.