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
09/12/25
– Upper Lea news
Herbicide Water Quality Update
To read the herbicide water quality update for the River Lea catchment for the period Sept 2024 to Aug 2025 click here
30/10/25
– Upper Lea news
RSWT River Corridor Petition
RSWT are sharing a petition calling for funding for a nationwide, nature-rich river corridor network. The link is here.
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!
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