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
25/08/26
– Upper Lea news
Water Brief 2026
The water brief from Thames Water showing the situation up until end of July 2026 can be viewed below. They have also provided some tips for saving water consumption.
18/08/26
– Upper Lea news
Herbicide Water Quality Update Summer 2026
The herbicde water quality update from Thames Water can be viewed here
02/06/26
– Upper Lea news
Chalk Stream Species at Risk Webinar
The next CaBA Chalk Streams webinar is on Tues 30th June at 9.30. If you are interested in joining the sign-up link is 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