It's not always easy to know who to contact about a problem related with the river, whether it's to let someone know about a tree floating along or you want to report someone behaving in a dangerous way near the water.
The main responsibility for ensuring a clean, safe and navigable river is shared between:
These agencies work in partnership to protect and enhance the River Tees. If you have spotted a problem please contact British Waterways on 01642 633273.