Red 'do not swim' flags remain in place at the beach in Wells-next-the-Sea.
The flags were raised on August 2 by North Norfolk District Council (NNDC) following a ‘pollution risk forecast alert’ from the Environment Agency (EA).
The council said it was "awaiting further guidance" from the EA about when the flags could be removed.
An NNDC spokesman said the risk forecast alert was "different from a controlled spillage overflow alert, based on data predictions and modelling."
An EA spokesman said: "These forecasts are based on rainfall, wind and tidal patterns and alert people when water quality may be poor.
“Throughout the bathing season (May to September) the Environment Agency will issue warnings of any forecasted pollution risk on its Swimfo website.”
It follows red flags being put up at Mundesley Beach for around 24 hours in July.
Wells is currently in the middle of its carnival week, which draws thousands of people to the town, recently dubbed Norfolk's coolest, every year.
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