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Floot defence
Due to the high water table, a 150mm deep system using 2,614 Permavoid cells delivered 138m3 of stormwater storage beneath the hard landscaping surface. Permavoid was also selected due to its high structural load capacity.
To treat oil and capture silt, 35m of Permachannel, Permavoid Biomat and four Permaceptor separators were used to channel the collected stormwater away from the site and into local water networks.
Phil Williams, consultant engineer at EPG, said: By working with Polypipe’s technical experts, we were able to design a system that could be considered ‘good practice’ by the SuDS manual, local and national planning documents.”
