The Wye and Usk Foundation (WUF) is a Rivers Trust that improves the ecology, habitat and water quality of the Rivers Wye and Usk in Wales.
As part of CaSTCo, WUF is part of the Usk catchment demonstration, focusing on four pillars of work: farm interventions, citizen science, monitoring, and data recording.
Building relationships with citizen scientists and farmers has been essential to the success of the WUF. Working across disciplines, expertise, and catchments, the work at WUF demonstrates the power of community in protecting rivers.

Bringing communities together for water
The Wye & Usk Foundation’s success is a testament to the collaborative spirit of community. In the profiles below, you’ll meet some of the volunteers and farmers conducting data monitoring and contributing their local knowledge and expertise. Learn about their origins, inspiration, methodologies and what they’ve gained from joining the project, all in their own words.
Understanding Wales
Following Brexit, there were many changes to funding, notably in terms of funding for the River Trusts.
The Welsh Government is allocating more funding opportunities to Welsh River trusts, including accelerator funds and other initiatives, enabling them to undertake effective environmental works. There has been limited additional support from other Rivers Trust and the Environment Agency, but further support from private investors is needed to effectively fund urgently needed environmental works.
In England, prior to 2021, the Department for Environment, Food and Rural Affairs (DEFRA) had funded many River Trusts and other eNGOs to carry out environmental goods. English River Trusts now rely heavily on the Water Restoration Funds (fines against water companies) which they can bid into, National Lottery, Water Company funding and OFWAT innovation funds, along with social and business funding.
Where
The river Wye (Afon Gwy in Welsh) is the fifth longest river in the UK, flowing approximately 152 miles.
The river Usk (Afon Wysg in Welsh) rises on the northern slopes of the bralck Mountain (y Mynydd Dy) at the western edge of Brecon Beacons National Park.

Methodology
- Working closely with the Gwent River Trust as a CaSTCo partner and Stump Up For Trees
- Physical habitat monitoring – hydrological flow maps and wet weather walkovers
- Soil sampling – P, K, Mg, Organic matter and pH
- Soil VESS Scoring – Visual Evaluation of Soil Structure
- Waterblitzes, MoRPh river testing and infiltration testing
- Mapping the farm and ID potential Natural Flood Management (NFM) interventions
- Creation of a farmer focus group, with education days, peer-to-peer learning and group meetings
- Entries collected into EpiCollect: Wye Alliance Citizen Science

Learning from farmers
Paul Matthews
Organic beef and sheep hill farm: Aberhyddnant, Crai
Paul and his family have been on the farm since 1983, starting as commercial farmers and transitioning to organic farming in 1999. The principle is to let the farm produce what it naturally produces and to only let the stock eat the grass grown on the farm.
Working with the Wye and Usk Foundation, Paul and his family set out to better understand the benefits of thie divers flower meadow, and to help repair numerous field ponds across the farm.

Field Ponds
Organic beef and sheep hill farm: Aberhyddnant, Crai
When the family moved to the farm, they created ponds to rely solely on natural water sources, meaning there are no troughs in the fields.
Under CaSTCo, the Wye and Usk Foundation collaborated with Paul to reconstruct three of the original seven ponds, which were losing their dam walls. They ensured that access to drinking water was available on one side, with the dam walls opposite, fenced off from livestock.
Diverse meadow
Paul joined the Tir Gofal scheme in 1999, designating his field as a Lapwing Conservation area, which would become the site for CaSTCo infiltration testing. This scheme saw the field bloom yellow rattle, wild red clover, plantain and 30 other species of herbs and flowers, creating an extremely biodiverse field.
With the help of the Wye and Usk Foundation and CaSTCo, Paul and his family sought to understand how to replicate this approach across the entire farm.
Using infiltration testing, Wye and Usk monitored the field to understand the forage cover, root structure and infiltration levels. They discovered that platain accounted for 60% of forage cover in the meadow and that the infiltration of the area was bhelpd by root structure. Additionally, the soil was “alive”, which can take about 7 years to achieve in a conventional farming system.
Ultimately, the soil fauna and flora, microbiones, fungus and mycorrhizal worked together in the field to create healthy plants, healthy soil and good infiltration.


Benefits of CaSTCo
By being a part of CaSTCo, Paul’s farm was provided many opportunities:
- Sharing Paul’s knowledge with the CaSTCo and Wye and Usk teams and creating a lasting relationship
- Working with the Usk Demo team to install interventions
- Trial reseeds and liming
- Attending the Weatherproof Farming training with Niels Corfield
- Conducting infiltration tests
- Joining the farmer focus group working on development of the Usk Catchment Market

Meet the volunteers
Gareth Williams
Areas monitored: Pill Brook, Olway Brook, Clawdd Brook, Ffwd Brook, Ochram Brook, Gavenny River
” When I first retired, I was looking after my mum 24/7; she’s now in a home, and I found myself with time on my hands. Initially, I just went fishing, but there is only so much fishing you can do! I realised I needed something worthwhile to do, and researched soup kitchens and other volunteering but I then saw the Citizen Science opportunity with Gwent Wildlife Trust, a partner of Wye and Usk. I’ve been with them for a year now – I have a real affinity with wildlife and nature, so this really appeals.
I test six sites, which could take a whole day and a 40-mile round trip, but I break it down over 2 days and do some on my way to shopping or to see mum.
I really enjoy being a Citizen Scientist. I’ve learnt a lot about the river and I feel a great sense of purpose.”
Kath Roberts
Area monitored: Afon Tarrell
“I spend lots of time outdoors, and especially walking along this stretch of river, and it’s really interesting to understand what is happening with the river.
Now that I am a Citizen Scientist for the Castco project, I am paying more attention to the river as I walk alongside it, see what is going on and what I can see.
The Citizen science sampling has been really interesting, and I enjoy meeting up as a group to find out what they are finding and seeing on their patches!
It is great I am able to provide evidence and information, as we hear so much more about rivers and health, but we do need measurements and to data to back up that information to see how it varies over the course the Usk. I feel proud that the data I collect is helping answer the questions being asked and is being used to supplement the other information that is out there.”
Nicola and Tony Boggust
Area studies: Ewan Brook and Rhiangoll
Tony: “We have lived here for over 20 years and when we first came there were lots of fish and insects in the river.
We’ve noticed the decline and there are no longer fish in this river. We used to come out at night with a torch, and watch the fish fluttering about but we don’t see that anymore. We’ve also seen a decline in insects, especially the dragonflies and damselflies. This led us to ask, ‘What’s happening? Why is there a decline in the insect and fish life in the river?’
That’s why we joined the Castco Citizen Science programme, so we can help learn more and help gather data to answer those questions.”
Nicola: ” “I felt quite angry that the rivers were losing their quality. I’d heard what government officials were saying but they didn’t seem to have enough evidence to why the rivers were losing their quality. I felt that becoming a citizen scientist could help get that evidence.”
Jacqui King
Areas monitored: River Usk
“I’ve lived here for 20 years, and I can see the river changing.
I feel that people aren’t realizing why it’s changing, so it was interesting to hear that Gwent Wildlife was advertising for volunteers to help monitor the river. They explained precisely what the volunteering would entail to test water quality.
I’ve noticed that the fishing is changing. I’m not a fisherman, I’m a Fisherman’s wife. There are plenty of trout, but no salmon. In fact, people haven’t caught salmon now for over a year, and you want to try to explain why. It’s interesting to know that we can obtain information about the water quality.
Hopefully, our work will demonstrate that there’s a problem with the quality of the water, and the evidence is there to inspire action. I’m very lucky to be able to spend the time doing it. It’s actually quite interesting because you feel you’re being a scientist – you’re doing quite meticulous testing. Plus, it’s a pleasant environment to sit and enjoy every week, watching the wildlife.”
Kate Norris
River Monitored: River Usk
“Not everyone has an hour a week, but if you do, I think it’s quite nice to be part of the bigger picture.
Personally, I’m interested in knowing what’s going on with the river, why the decline is happening, and what individuals can do about it. There are quite a few citizen scientists now, which is really great and I enjoy coming out with Jacqui to test together.
We have encountered some skepticism about the accuracy of our data. However, I think it’s becoming widely known now that the data is fairly accurate. The Water Blitzes, we’ve taken part in all 3 of them, have helped to establish this, and it’s nice to be part of something bigger than yourself.”
Tim Henson
Areas monitored: Honddu and AfronTarrell
“I’ve conducted approximately 130 tests since joining the CaSTCo citizen science programme.
I test two sites, and I like to think I have a good grasp of what is going on with the river. If what I am doing on my two sites is replicated across the whole Usk catchment, we are providing really good data to work from.
Why do I do it? I enjoy being outside, and it’s a great excuse to walk up here once a week. I am interested in the state of our rivers and the quality of the water, and if there is anything I can do to help improve it, then it’s a good thing.
The Castco Citizen Science programme has given a really good picture of the Usk Catchment, and I think it will allow the bright people to see where the pinch points and Issues with the water are, and they can address them.”

Lessons learned
- Relationships are critical: For action in the Wye and Usk, relationships have been built between citizen scientists, academics, farmers and local communities. This has overcome mistrust and inspired collaboration on new techniques, while also encouraging more volunteers to help protect and interact with their local environments.
- Overcoming skepticism: The data collected by citizen scienctists continues to face skepticism from academic and formal scientific communities. To overcome this, the use of Waterblitzes and working directly with the University of Cardiff and the Environment Agency has helped promote the accuracy of data collection and enhance the work of volunteers.
- Community building: Both volunteers and farmers recognize that joining WUF has provided a greater sense of community and more pride over their local catchments. With the help of CaSTCo, multiple opportunities are presented, including those to share local knowledge, connect across disciplines and learn new monitoring techniques.

“Working with CaSTCo has been essential in allowing our the Usk and Wye demo to learn and utilzie new monitoring methods and platforms, while also allowing us to conenct with other trusts across the UK. The comraderie built between fellow CaSTCo participants has helpd to inspire condience, overcome relationship chalelnges, and crate an environment for sharing between disciplines, communities and organisations.
Sian Mercer, Specials Project Manager , Wye and Usk Foundation

