
FreshWater Watch in the UK
Fighting for healthy freshwater habitats across the UK
Pollution, climate change, and over-exploitation have brought our fresh water systems to crisis point. Many rivers are no longer fit to swim in and our water supplies for drinking and growing food are threatened.
Working together with local communities and partners, we have created a growing network of concerned local citizens who care about the health of their precious freshwater resources: FreshWater Watch. This involves training community groups across the UK to use our FreshWater Watch toolkit to detect nutrient pollution and fight for real change.
Only 14% of the UK’s rivers are considered to be in good ecological health, and every single one of them fails to meet the required chemical standards.
FreshWater Watch UK at a glance
There are 58 community groups across the UK, monitoring the health of their local freshwater bodies.
FreshWater Watch groups cover catchments across England, Wales, Scotland and Northern Ireland.
Over 1,000 group members are actively collecting monthly data and sharing it on our open-access platform.

How we make a difference
Water quality research, community engagement, individual empowerment.
It is not always possible to determine water quality at first glance. The FreshWater Watch toolkit helps to uncover the secrets hidden underneath the surface and makes the invisible, visible.
Our community groups turn into citizen scientists as they learn how to test a freshwater sample for nitrates, phosphates and turbidity.
By submitting a simple survey, they can see their data mapped in real-time, with automatically generated feedback explaining what their results show. Our data map, which has been built up over many years, creates a lasting legacy and is open access, meaning anyone can use it to track and mobilise change.
Not only is the toolkit easy to use, but it is accessible to everyone, regardless of their education or background. Many of our FreshWater Watch community group members in the UK come to us with no prior research experience or scientific qualifications, but that doesn’t stop them from participating directly in citizen science.
Samantha Hayes, Project Manager

Each FreshWater Watch community group has its own set of local environmental challenges, such as intensive agricultural land-use, nearby mining activities or discharges from sewage treatment works (STWs). By creating a monitoring schedule that suits their needs, volunteers can enable long-term data collection that documents exactly why pollution is occurring, where and when, and then drive actions to mitigate these pollution events.
The data can also be used to evidence where healthy waterbodies are located and push for the necessary protection measures to be put in place (such as certified ‘Bathing Water Status’) to ensure that they remain this way for future generations.
Benefits for FreshWater Watch members
- Access to water testing kits, online platform and mobile app for data collection
- Technical support and freshwater expertise from our FreshWater Watch Team
- Regular updates and inspiration from our global network of community groups
- Training resources and video tutorials
Join the fight for fresh water
Community groups
Experience the power of freshwater citizen science! We offer training in the use of our global data platform and water testing kits. Join an existing community group or set up your own.
WaterBlitz events
We organise local, national and international WaterBlitz events, encouraging everyone to take water samples locally over one weekend. Keep an eye out for upcoming events.
Support FreshWater Watch
Help stand against water pollution by supporting Earthwatch Europe with a one-off or monthly donation.
Businesses
Partner with us and help us equip more communities with the tools and knowledge to take action for their local freshwater resources. We are seeking visionary sponsors to help us drive the freshwater revolution forward. Talk to us about sponsorship opportunities today.
We have to start treating our waterways with the respect they deserve. Solving the problem will require policy changes and innovative technologies, but the power of community-based initiatives should not be underestimated!
Dave Wallace, FreshWater Watch citizen scientist
FreshWater Watch news

Great UK WaterBlitz finds ‘cocktail of chemicals’ in UK rivers
Thousands of volunteer citizen scientists across the UK braved the wettest weekend of the year, 20-23 September, to test their… Read more
Earthwatch’s Great UK WaterBlitz finds 75% of rivers in poor ecological health
Earthwatch Europe publishes its report from the Great UK WaterBlitz, the UK’s largest citizen science water quality testing event, and… Read more
Earthwatch publishes results of the Big WaterBlitz 2022 revealing nutrient pollution as a global issue
From 30 September – 3 October 2022, Earthwatch Europe encouraged their existing FreshWater Watch community groups to take part in a global water… Read moreOur research

Tyre particulate freshwater pollution pilot study
Earthwatch Europe partnered with Emissions Analytics on a pilot study in the Evenlode and Windrush river catchments to monitor freshwater… View
Great UK WaterBlitz September 2024 Report
During the weekend of 20 – 23 September 2024, over 4,500 people across the UK measured the water quality of… View
Great UK WaterBlitz June 2024 Report
Discover the Great UK WaterBlitz June 2024 report results. Over the weekend of 7-10 June, over 2,600 people across the UK went… ViewFreshWater Watch stories

East Anglia Youth Rowing: Water testing on the River Cam
FreshWater Watch is our global movement of volunteers who test the… Read more
The Ealing Beaver Project: Water testing after the beaver reintroduction in London
FreshWater Watch is our global movement of volunteers who test the… Read more
Elly Platt: Revealing river pollution – stitch by stitch
The Great UK WaterBlitz is a biannual campaign calling on… Read more
Reg Godwin: Inspiring schools to dive into freshwater citizen science
FreshWater Watch is our citizen science programme that gives communities fresh water… Read more
Ramune Kuzminiene: Making a community care for their river
FreshWater Watch is our citizen science programme that gives communities… Read more
James Levelle: Living on the water
FreshWater Watch is our citizen science programme that gives communities fresh water… Read more
Rebecca Lewis: Discovering the wider river ecosystem
FreshWater Watch is our citizen science programme that gives communities fresh water… Read more
Dave Wallace: Swimming in sewage
FreshWater Watch is our citizen science programme that gives communities fresh… Read moreGet in touch
Want to join the fight for healthy freshwater habitats? Get in touch with our FreshWater Watch team today.