Across the UK, citizen scientists bring knowledge, passion and local insight to the health of our rivers, lakes and seas. Every week, people measure water quality, track flow rates and water clarity, and record the wildlife that tells its own story about a waterway's health. Collecting data is only half the story. To unlock its full value, it must be used, and that's exactly what we'll be exploring at this year's River Summit.
A wealth of data, but a fragmented picture
From individuals monitoring a stretch of river near their home, to large-scale citizen science initiatives working across the country, people are gathering enormous amounts of information: contaminant testing, observational readings, biodiversity counts. Alongside data from water companies, regulators, academia and government, it adds up to a huge and valuable picture of the health of the UK's waterways.
The challenge is that the data is scattered. It sits in different places, is collected in different ways, and is published in different formats, if it’s published at all. Some initiatives have full technical teams behind them. Others are a handful of people recording readings on paper or spreadsheets. The result is a wealth of insight that is distributed, fragmented and often invisible, which makes it far harder to see the full health of a river, region or catchment.
The trust gap holding citizen science back
In 2025, Stream explored the citizen science water data landscape here in the UK. We reviewed existing research and literature, and spoke directly with many people across the ecosystem, including citizen scientists, water companies, regulators, campaign groups and universities.
During this explorative work, three challenges came up consistently:
A trust deficit. Historic scepticism about the variability and reliability of citizen science data means it is too often overlooked by policymakers and decision-makers, before its value has even been explored.
No shared assurance framework. Without a common framework guiding how data is collected, recorded, assured and published, even carefully gathered data becomes difficult to compare or combine with other datasets, so local insight stays local.
Fragmentation. Data collected by citizen scientists is spread across numerous individual initiatives, with no consistent way to bring it together into a fuller picture.
None of this reflects a lack of effort or care. Citizen scientists are gathering exactly the kind of data that could transform how we understand and protect our rivers. What is missing is the connective tissue: the trust, the common framework and the shared infrastructure to let this data reach its full potential.
What we're proposing: a trust framework, built together
This is where Stream comes in. Stream is the data sharing infrastructure for the UK water sector (covering all activities, stakeholders and systems relating to water), with a vision to unlock the potential of water data to benefit citizens, society and the environment. We work across the sector; bringing industry, regulators, government, citizen scientists, campaign groups and academia together to collaborate and deliver impact through data.
And our research points to a clear first step: co-creating a trust framework for citizen science data, one that collaboratively sets out the guardrails and framework needed to foster trust across the ecosystem.
Get this right, and citizen science data can be shared, used and turned into positive insight and action at scale, reaching the decision makers and communities who can help act on it.
From data to action
Of course, publishing and sharing data is just the beginning of the journey. Data needs context before it becomes information, and information needs interpretation before it becomes knowledge. It is only when that knowledge leads to action, that its full value is realised.
This is the outcome we are working towards: a UK water sector where citizen science evidence is trusted, accessible, understood and used to drive better decisions for our UK waterways.
We'll be discussing all of this in our lightning talk at The River Summit & Festival. Come and hear more, and help us shape the future of trusted, open water data.
About Stream
Stream is the data sharing infrastructure for the UK water sector. A collaboration between all British water companies, water sector stakeholders, and supported by specialist partners including the Open Data Institute, we bring data and people together to address key water sector challenges.
Our open data platform and user support makes it easy to find, understand and access the data needed to develop real insight, and we've already published well over 250 datasets under an open licence, with more in the pipeline.
Find out more at www.streamwaterdata.co.uk or get in touch at info@streamwaterdata.co.uk.