Latest news

The Summer 2024 Water Quality Update for Lea and tributaries can be viewed here

Thanks to funding from the Environment Agency, we are excited to be working in collaboration with and supporting landholders, communities, stakeholders, to improve the river Mimram's ecological health.

The Thames Water Environmental Newsletter for Summer 2024 can be read here

Luton Lea Upper Lea Middle Lea Mimram Lower Lea Ash Rib and Quin Beane London Lea Stort

Roll over the map to highlight a river catchment, click to view information for that river and view the projects and their progress.

Riverfly button

A fantastic citizen science scheme helping local volunteers monitor the water quality of their local river

Design by LTD Design Consultants and build by Garganey Consulting. Hosting by Stablepoint