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General   (General discussion, talk about anything.)

Started by: orrellite (2427)

who would have thought that in times of prolonged and heavy rainfall that rivers would overflow onto their natural floodplain, the majority of sewers in Wigan are combined flows ie foul and surface water and so when the surface water flow increases they are designed to overflow into the river and stream system at I think 6 times normal flow rate thus diluted sewage will be in the floodwater, no sewer system in the country will take all of the combined flows in times of storm, sections of the system have retention storage but if this is full and the storm carries on as Friday you will get flooding end of

Replied: 24th Jun 2012 at 13:38

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