Welcome to the website of the Lea Catchment Partnerships – bringing together people and projects for the benefit of the River Lea and its tributaries.
The River Lea and its tributaries - the Mimram, Beane, Ash, Rib, Quin and Stort - drain over 1000 km2 of south-east England. These rivers include rare and precious chalk streams, canals and navigations, and urban watercourses.
The Storymap for the partnership can be read here.
To view the catchment plans navigate using the map opposite or the menu bars above.
Latest news
06/10/25
– Upper Lea news
Campaign to plant Black Poplars
Click here to read about the campaign to plant 100 new Black Poplars in Hertfordshire. Please note the request for information!
29/07/25
– Upper Lea news
Thames Water Updates Summer 2025
29/07/25
– Upper Lea news
Local Nature Recovery Strategy
Hertfordshire County Council have published the Local Nature Recovery Strategy for Hertfordshire. It looks at what we need to do to help nature recover, how we need to do it and where we need to do it.
You can read the full report here
Roll over the map to highlight a river catchment, click to view information for that river and view the projects and their progress.
A fantastic citizen science scheme helping local volunteers monitor the water quality of their local river