The Environment Agency is investigating a potential pollution incident at a wastewater treatment works.
A warning was issued advising people against bathing along Eastbourne seafront after an electrical fault at Southern Water’s Eastbourne Wastewater Treatment Works late on August 31.
The warning has since been removed.
An Environment Agency spokesman said on September 4: "We are investigating a potential pollution incident at Eastbourne Waste Water Treatment Works on the 31 August.
"As a precaution, we issued advice against bathing as there was a risk of untreated sewage being washed back towards the beach on the incoming high tide.
"This warning has now been removed.
"We will not hesitate to take enforcement action if appropriate."
According to an incident log on the Environment Agency website, the warning was implemented at 11.13pm on August 31 and ended at 9am on September 2.
A spokesman for Southern Water said: "There was an electrical fault that occurred at Eastbourne Wastewater Treatment Works on Monday evening 31 August.
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"Tidal modelling was carried out and predicted no impact on bathing water quality at Eastbourne or neighbouring designated bathing waters.
"Water quality remained within the 'Excellent' classification threshold throughout the incident and afterwards.
“Our operational teams returned the site to normal working on Monday evening."
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