A meeting will take place this week to discuss concerns about pollution in the River Swale.
The meeting is being organised by a new campaign group, Save Our Swale.
A spokesperson for the group said: “We are a group of volunteers, concerned about the ongoing pollution of the River Swale, working together to make it better.
“To find out more about the situation and how you can get involved come along to the public meeting.”
In April, slurry got into the stream which runs through Gilling West and Skeeby and into the Swale.
The spillage is thought to have killed hundreds of fish and other wildlife.
Campaigners have also raised concerns about foam seen recently at the Easby sewage works outfall.
For more details on the group, click here.