The Environment Agency has issued the advice to bathers visiting the River Deben at Waldringfield, which only received designated bathing water status from the Department for Environment Food and Rural Affairs (DEFRA) in April 2023. An Environment Agency spokesman said: “Specialist officers are working with East Suffolk Council and other agencies after oil leaked from a sunken boat on the River Deben near Woodbridge, in Suffolk, last week. READ MORE: The Deben at Waldringfield was ranked "poor" in 2023“We advise against swimming at the nearby Waldringfield bathing water for the time being, but that advice is under constant review. Designated bathing status means the water is monitored by the Environment Agency, which takes samples during the bathing season between May 15 and September 30. Five facts about the River Deben: