A water treatment plant which supplies water to more than 46,000 properties and 116,000 people in Purley, South Croydon, Warlingham and Caterham, is still under threat of flooding despite the reduced rainfall over the weekend.

Sutton and East Surrey Water’s (SESW) employees are working 24 hours a day with the emergency services to protect Kenley water treatment works in Godstone Road, Kenley.

The road is closed while the water is being pumped away from the site.

SESW’s managing director Anthony Ferar said: “We are doing all we can to protect Kenley treatment works and our teams are working round the clock to manage the incident.

“Flood water has been pumped away from the site and the flooding has abated somewhat over the weekend, but the weather forecast this week remains a serious concern.

“Maintaining the quality of our drinking water is our overriding priority.”

The water company is working with Croydon Council, the London Fire Brigade and the Environment Agency to ensure flood defence work and efforts to remove the water are coordinated as the inundation is affecting a wide area.