The site lies within Flood Zone 1 which is the area at lowest risk of river and sea flooding.
The SuDs strategy will be planned and integrated from the start of the development. It is designed to cope with heavy storms (up to a 1-in-100-year rainfall event), with extra capacity included for future climate change so will generate a betterment over the existing runoff rate.
The SuDs features will form part of the wider blue-green corridors across the site, providing attractive green spaces that help manage surface water and enhance biodiversity.
They will also ensure that those areas where the site is currently affected by saturated ground and pooling water are addressed.
Wastewater from the existing school is pumped to a nearby sewer in the verge on the west side of the B2118, close to the site entrance.
Both the new school and the proposed residential development will connect to the existing foul sewer system via a new pumped drainage system.
Southern Water have confirmed that there is adequate capacity in the local sewerage network to accommodate a foul flow in this location.
The surface water and foul water systems will thus be separately controlled and managed.