ENVIRONMENT officers attended a major incident of leaking farm slurry escaping into a stream at Pandy.
Environmental officers were alerted to the incident on Thursday evening when a resident of Wern Gifford was out walking her dog along the tram road that runs alongside the river.
She noticed that there was amount of slurry pouring under the bridge and realised that this was a major problem and reported the incident.
The Environment agency responded immediately and located the farmer whose fields are adjacent to the stream.
Over the following days Environment Agency officers stayed at the scene and several samples were taken. An operation to contain the spillage was being put in place with a series of dams being built to contain the slurry and a number of pipes installed around the affected area to bypass the affected parts of the stream.
A spokesman for the Environment Agency in Wales said: "Officers are investigating a possible pollution on a tributary of the River Honddu.
"The pollution is believed to have affected a tributary of the Honddu. So far, the River Honddu itself has not been impacted."
The officers remaining on site are taking a series of water samples to determine the extent of any pollution.
The spokesman added, "We are very grateful to the members of the public who reported the incident to us.
"If anyone sees pollution, please call our Incident Hotline on 0800 807060."