Environment Agency still investigating river foam
Tees Rivers TrustWater testing is continuing after a large stretch of foam appeared on the surface of a river.
Chris Davison, 45, was cycling home at 22:45 BST on 24 September when he spotted "what looked like snow" covering the River Skerne in Darlington.
He stopped to take a better look and found a "thick" layer of foam covering the entire surface of the waterway.
The Environment Agency (EA) said it could "take some time for results to come back from water testing".
Mr Davison previously said he had never seen anything like the foam and reported it to the EA.
He said the foam floated along the river through the centre of Darlington and down towards South Park.
Chris DavisonWarren Bearpark, project manager for the Tees Rivers Trust, said the investigation needed to find the cause of the foaming.
"I don't think it was natural. It was too brightly white," he said.
"I would like to know where it came from and who is responsible for it."
An EA spokesperson previously said: "We've received a report of foaming on the River Skerne in Darlington.
"Officers are on site this morning to investigate the source and to assess any impact on the environment."
