Rivers | H2O Global News

Yorkshire reservoirs record largest weekly rise in over 30 years

H2O Team — Fri, 26 Sep 2025 12:14:22 +0000

H2O Global News
Yorkshire reservoirs record largest weekly rise in over 30 years

Yorkshire’s reservoirs have recorded their largest weekly increase in more than three decades, with total stocks rising to 45.6%—an uplift of 14.8 percentage points in seven days following heavy rainfall across the region. Despite the improvement, storage remains well below the seasonal average of 69.6%.Significant inflows were reported at several key reservoirs over the last week, including:

Scar House (Nidderdale): over 3 billion litres
Grimwith (Yorkshire Dales): over 2.7 billion litres
Langsett (South Yorkshire): over 900 million litres
Digley (West Yorkshire): over 750 million litres

Groundwater levels and river flows across the region have also seen a marked rebound, helping support water resources recovery.

Dave Kaye, director of water services at Yorkshire Water, said:

The rainfall we’ve seen over the last seven days has had a significant impact – the largest weekly increase in stocks we’ve seen in 30 years. The rain over the last seven days has also recharged groundwater and the region’s rivers. The recharge of the rivers means we can enact our drought orders and permits to allow the reservoirs maximum recovery.

While the increase in reservoir and groundwater stocks is positive and very welcome after the driest summer on record, our stocks are still well below where they should be at this time of year. We hope the reservoirs and groundwater will continue to recover through the autumn and winter months so we’re in a good position entering 2026.

Despite the relief of the rainfall, we are continuing our efforts to tackle more than 800 leaks per week and lay over 1,000km of new water pipes over the next five years. The hosepipe restrictions remain in place and will be in effect until reservoir and groundwater levels have seen sufficient recovery. We’re hoping this will occur through usual autumn and winter rainfall and we will continue to monitor levels and remove the restrictions as soon as we are able.

Once again we’d like to thank customers’ efforts to adhere to the restrictions and for those taking further steps to conserve water resources.

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Yorkshire reservoirs record largest weekly rise in over 30 years
H2O Team

Tagus SAIH strengthens role in smart water management with technological upgrades

H2O Team — Tue, 16 Sep 2025 15:54:06 +0000

H2O Global News
Tagus SAIH strengthens role in smart water management with technological upgrades

The Tagus Water Authority (CHT) has enhanced its Automatic Hydrological Information System (SAIH) through new technological and operational upgrades delivered under its contract with the TAJO 2024 consortium, led by Idrica and Adasa Sistemas.

The Tagus basin, covering more than 55,000 km² and home to nearly eight million people in Spain, is one of Europe’s most complex river catchments. Its monitoring network includes 222 SAIH stations, 30 water quality stations (SAICA), 12 river gauging stations (ROEA), and over 100 piezometers (SAIHTajo). The system generates a vast volume of data that requires advanced analytics to transform into actionable insights for water security and resilience.

Advancing water security and compliance

The latest upgrades to SAIH are designed to strengthen hydrological forecasting, anticipate pollution episodes, and improve responses to climate-driven risks such as floods and droughts. They also support monitoring and compliance with the European Union’s Water Framework Directive.

“The aim of the project is to guarantee water and hydraulic security for all of the basin’s users, maintaining and improving critical infrastructure to facilitate real-time decision-making,” said Sergio Morant, Flood Risk Specialist at Xylem Vue, the digital platform developed by Idrica and Xylem.

Maintenance and digital operations

The programme has two core strands. The first covers the preventive and corrective maintenance of hydrological infrastructure, including weather stations, river and dam level sensors, and IT systems. The second, led by Idrica, focuses on hydrological operations such as continuous network monitoring, advanced data analysis, and decision support for extraordinary events.

The upgrades proved their value in early 2025 when four major storms highlighted the importance of advanced monitoring and predictive capabilities in reducing flood risks and ensuring effective dam management.

Digital backbone for future resilience

The project consolidates SAIH as a critical infrastructure for water security in central Spain and reinforces the Tagus basin as a benchmark for smart water management. Through digitalisation and collaboration, CHT and its partners are positioning the system to respond to increasing climate and regulatory pressures.

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Tagus SAIH strengthens role in smart water management with technological upgrades
H2O Team

Tech-Powered River Guardians: How WildFish is Using Citizen Science and Smart Tools to Save UK Rivers

louise davey — Mon, 15 Sep 2025 12:05:30 +0000

H2O Global News
Tech-Powered River Guardians: How WildFish is Using Citizen Science and Smart Tools to Save UK Rivers

It’s hard to imagine an essential piece of biodiversity quietly slipping toward collapse, but that is precisely what’s happening in many of the UK’s rivers. While they may still appear tranquil on the surface, beneath lies a story of chronic overextraction, chemical overload and plummeting oxygen levels; conditions that are causing declining ecosystem health and pushing iconic species closer to extinction.

In 2023, the Atlantic salmon was officially reclassified as “endangered” on the IUCN Red List. This is just one species, but it sums up the overall urgency of the situation.

Although traditional government oversight and reactive policies may currently be falling short, citizen science and intelligent monitoring technologies are stepping in to make a real difference to the health of UK rivers.

At the forefront of this new wave of grassroots tech is WildFish, an independent UK conservation charity that champions the protection of wild fish and their freshwater ecosystems. Their flagship initiative, SmartRivers, demonstrates how precision science can meet citizen engagement to close critical data gaps and encourage regulators into action.

I spoke to Dr Janina Gray, Head of Science and Policy at WildFish, to find out more about the state of our rivers and the work they are doing to help.

“The problems facing UK rivers are urgent, and vary from pollution and abstraction, to the risk of losing aquatic plants and wildlife to extinction. Water companies abstract 700 million litres of water unsustainably from rivers every single day. Combine that with thousands of hours of daily sewage discharge, and you’ve created a perfect storm of low water levels, toxin accumulation and habitat degradation.”

How does SmartRivers Work?

Launched in 2019, SmartRivers is more than a monitoring project, it’s a data-driven movement. By training volunteers to collect high-quality, scientifically robust information on freshwater ecosystems, WildFish is effectively creating a distributed network of water quality watchdogs. The programme focuses specifically on aquatic invertebrates, using what Dr Gray calls “invertebrate fingerprinting” as a primary diagnostic tool.

“Unlike nutrient testing, which gives you a snapshot of water quality at one point in time, invertebrates offer a more comprehensive view. They live in the river over weeks and months and integrate the impacts of pollutants over that time. Analysing their presence- or absence- tells us a lot about chronic stressors on the ecosystem.”

Volunteers are trained to collect samples using a standardised three-minute kick-sweep and one-minute hand search method. These samples are then analysed down to the species level, providing information that allows scientists to track biodiversity, identify invasive or threatened species and develop water quality scorecards based on five common stress types.

Over 6,000 hours of volunteer training have already been completed, and the results are proving helpful. The SmartRivers dataset is fully open-access, allowing NGOs, policy advocates and even regulators to use the data for scientific scrutiny and public accountability.

Citizen Science as a Regulatory Force

A perfect indicator of SmartRivers’ impact lies in how its data has been used to influence regulatory decisions.

One success story was from the River Alyn, part of the Dee catchment in North Wales. After SmartRivers volunteers consistently recorded chemical pressure in the area, WildFish used that data to request pesticide usage records from the Health and Safety Executive (HSE). Although initially denied access, the Information Commissioner later ruled that these records are indeed held “on behalf of” the HSE. A legal challenge is ongoing, but its implications are already resonating nationally.

“This legal battle could set a precedent for transparency in pesticide regulation. And it wouldn’t have been possible without the credibility of the data our volunteers collected.”

Another success story comes from Newcastle’s River Ouseburn. During their first monitoring season in spring 2024, Tyne Rivers Trust volunteers discovered the presence of Dikerogammarus haemobaphes– better known as the invasive demon shrimp. The find was swiftly reported to local regulators, prompting an investigation. Such early detections are vital for preventing ecological disruptions and costly mitigation later.

The Next Frontier: eDNA and AI Integration

While the SmartRivers programme already stands out for its methodological rigour, WildFish is actively looking to expand its technological toolkit. One area of promise lies in environmental DNA (eDNA). This is a method that identifies species by detecting trace genetic material in water samples.

“eDNA can spot rare or elusive species that traditional surveys might miss. It’s particularly valuable for early detection of invasive species or monitoring endangered ones like the Atlantic salmon.”

Paired with evolving AI capabilities, eDNA and other digital diagnostics could revolutionise how we track river health. AI, in particular, has the potential to analyse monitoring data in real-time, providing instant alerts for pollution incidents or anomalies in ecosystem behaviour. For citizen science projects like SmartRivers, AI could also help volunteers better understand and interpret their findings, streamlining analysis without compromising accuracy.

These technologies have the potential to be incredibly helpful, but it should also be remembered that they must be implemented with care.

“As with all things in the ‘AI revolution’ this technology requires thorough input and scrutinization by experts from the beginning to ensure that mistakes and erroneous assumptions are not unintentionally perpetuated into future monitoring methodologies.”

Collaboration, Not Competition

What sets WildFish’s approach apart is its emphasis on collaboration. By making data publicly accessible and offering training to partner organisations, the charity fosters a culture of shared responsibility and collective impact. It’s a powerful counter to the fragmented nature of water governance in the UK, where oversight is often split between agencies with, often, insufficient mandates.

“Citizen science doesn’t just fill data gaps. It democratises environmental stewardship. When people are empowered to understand and monitor their local river, they become advocates for its protection.”

WildFish’s mission is simple yet profound: healthier wild fish stocks, restored biodiversity and cleaner, more resilient freshwater habitats across the UK.

Whether it’s pushing for policy change, exposing corporate malpractice or training the next generation of river stewards, WildFish proves that precision technology and grassroots action can work hand in hand.

In an era where rivers are declining rapidly and pollution is outpacing regulation, it’s tempting to believe the situation is too complex to solve. But the work of WildFish reminds us that solutions already exist. They just require good science and a community willing to wade in and do the work.

Tech-Powered River Guardians: How WildFish is Using Citizen Science and Smart Tools to Save UK Rivers
louise davey

Bluey and Bandit: Wessex Water’s Detection Dogs Sniff Out Pollution in Sewers

H2O Team — Mon, 08 Sep 2025 16:45:21 +0000

H2O Global News
Bluey and Bandit: Wessex Water’s Detection Dogs Sniff Out Pollution in Sewers

Wessex Water has introduced two new canine recruits, cocker spaniel brothers Bluey and Bandit, to help tackle sewer misconnections and protect rivers across the region.

Misconnections occur when household appliances such as toilets or showers are incorrectly plumbed into surface water sewers. This can cause untreated wastewater to enter rivers and streams, threatening aquatic life and polluting the environment.

Bluey and Bandit form part of Wessex Water’s award-winning canine unit, trained to detect wastewater odours through manhole covers. With up to 300 million scent receptors—compared to just six million in humans—the dogs can identify pollution far more quickly than traditional methods.

Nikki Glover, Senior Environmental Detection Dog Handler at Wessex Water, said: “Bluey and Bandit have been training for the past six months using odours on manhole cover lids. They are already proving very effective alongside our Stream Clean team, finding misconnections faster, saving time and money, and delivering clear environmental benefits.”

The dogs were trained by Cape SPC, specialists in canine leak detection. They follow in the footsteps of Wessex Water’s earlier detection dogs Freya, Newky and Obi, who made headlines for locating protected great crested newts.

As part of Wessex Water’s wider Stream Clean programme, the canine unit helps to reduce pollution, restore river health, and protect communities across the company’s service area.

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Bluey and Bandit: Wessex Water’s Detection Dogs Sniff Out Pollution in Sewers
H2O Team

Aboitiz InfraCapital Joins RMN River Festival to Celebrate and Protect Iloilo’s River Heritage

H2O Team — Mon, 08 Sep 2025 10:20:36 +0000

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Aboitiz InfraCapital Joins RMN River Festival to Celebrate and Protect Iloilo’s River Heritage

Aboitiz InfraCapital (AIC), the infrastructure arm of the Aboitiz Group, partnered with Radio Mindanao Network (RMN) to celebrate the RMN River Festival in Iloilo City, a week-long event dedicated to raising awareness about the preservation and protection of the city’s vital river system.

The festival highlighted Ilonggo culture, heritage, and the importance of river stewardship through activities such as a fishing competition, a community river clean-up, fingerling dispersal, and the traditional baroto (boat) race. AIC supported these initiatives to strengthen its ties with local communities and advocate for sustainable practices.

Christopher M. Camba, AIC Head of Corporate Affairs, said: “Our participation in the RMN River Festival is a reflection of AIC’s commitment to building meaningful partnerships with the communities we serve—in this case, Iloilo City. It’s not just about celebrating Iloilo’s rich culture and heritage—it’s about actively contributing to initiatives that protect our environment and create lasting impact for the Ilonggo community.”

AIC team members joined Ilonggo residents in hands-on activities that underscored the river’s ecological and cultural significance. The event culminated in the awarding of baroto race winners and the planting of seedlings, symbolising a collective effort to safeguard Iloilo’s natural heritage for future generations.

This initiative reflects AIC’s broader vision of integrating sustainability and community engagement across its infrastructure portfolio, which includes water solutions, digital infrastructure, transport and mobility, and economic estates (see business units).

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Aboitiz InfraCapital Joins RMN River Festival to Celebrate and Protect Iloilo’s River Heritage
H2O Team

Farnham River Restoration Project Reaches Key Milestone

H2O Team — Wed, 03 Sep 2025 08:26:44 +0000

H2O Global News
Farnham River Restoration Project Reaches Key Milestone

South East Water has completed a river restoration project on the River Hart near Basingstoke, designed to improve habitats, biodiversity and water quality.

Delivered in partnership with the South East Rivers Trust and guided by AtkinsRéalis, the project focused on creating a more dynamic, free-flowing channel better connected to its floodplain and downstream habitats.

Key actions included a fish rescue operation to relocate trout, the removal of invasive signal crayfish, desilting the riverbed, and taking out an obstructive weir. Together, these steps will restore natural processes, improve fish passage, and reduce sediment build-up.

Brad Evans, Restoring Sustainable Abstraction Lead at South East Water, said: “We’re pleased to complete this project, which will improve habitat and biodiversity in the River Hart and require less intensive treatment at the water treatment works. This project illustrates our commitment to protecting and restoring our rivers for future generations.”

South East Water will continue working with the South East Rivers Trust to monitor recovery and identify opportunities for further river restoration initiatives.

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Farnham River Restoration Project Reaches Key Milestone
H2O Team

Wild Swimmers Benefit from Smart Water Quality Data on the River Teme

H2O Team — Wed, 03 Sep 2025 08:04:28 +0000

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Wild Swimmers Benefit from Smart Water Quality Data on the River Teme

Meteor Communications has deployed advanced water quality monitoring technology on the River Teme at Linney Riverside Park, Ludlow, in partnership with the Environment Agency (EA). Funded through the River Severn Partnership’s Advanced Wireless Innovation Region, the project is transforming how river conditions are tracked and shared with the public.

Launched in February 2025, the installation provides real-time, integrated monitoring of dissolved oxygen, temperature, pH, turbidity, conductivity, chlorophyll and ammonium via Meteor’s ESNET system. Live data is transferred automatically to the secure MeteorCloud® platform, offering immediate insights rather than delayed laboratory results.

Graph showing combined water quality parameters and bacteria measurements from the River Teme.

The River Teme, a designated Site of Special Scientific Interest (SSSI) and popular wild swimming site, has recently recorded bacteria levels above safe bathing thresholds. Traditional spot sampling can take days to process, but the new ESNET-based system delivers continuous measurements and integrates with a Fluidion Alert bacteria analyser, which can quantify E.coli and coliform bacteria within 2–12 hours. This event-driven monitoring captures microbial spikes often linked to rainfall, runoff and storm overflows, providing critical safety data for swimmers.

From Data to Decisions

Meteor has also introduced AI-driven tools to enhance interpretation of environmental data. The platform applies traffic light classification and smart alerts to highlight deviations in real time, enabling faster responses from regulators and improved public safety outcomes.

Rebecca Hartless of Meteor Communications commented: “ESNET based systems do not just collect, move and store data, they translate it into actionable intelligence. With custom graphs, API integration, and configurable alerts, users gain a complete contextual view of site conditions, so that they are able to derive actionable, data-driven insights.”

Group of stakeholders standing beside a Meteor water quality monitoring kiosk in Ludlow.

Community Access

The data is now being shared through a mobile app that allows swimmers and local communities to check live water quality before entering the river. With further installations planned at additional sites, the project is helping to improve transparency, strengthen environmental oversight, and enhance safety at popular bathing waters.

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Wild Swimmers Benefit from Smart Water Quality Data on the River Teme
H2O Team

German Students Awarded 2025 Stockholm Junior Water Prize for Flood Warning Innovation

H2O Team — Fri, 29 Aug 2025 15:30:51 +0000

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German Students Awarded 2025 Stockholm Junior Water Prize for Flood Warning Innovation

German students Niklas Ruf and Jana Spiller have been awarded the Stockholm Junior Water Prize 2025 for developing a scalable flood warning system for small streams. The award was presented by H.R.H. Crown Princess Victoria of Sweden during a ceremony at Stockholm City Hall as part of World Water Week.

Flooding is a growing concern worldwide, yet small streams often lack real-time monitoring. Over four years, Ruf and Spiller created a sensor network linked to a mobile app that delivers live flood alerts to experts and the public. The system is already being scaled up in their region with support from local partners.

The international jury noted that the project “addresses a critical challenge we are seeing around the globe: more frequent and bigger floods. Yet on smaller streams, we often lack the data needed to provide real-time warnings. The students have not only built a functioning system and an app that notifies experts and the public, they are already working to scale this system across their region.”

Reflecting on their win, Ruf said: “I didn’t expect it at all. There were so many really good projects. I thought we were just here to have a good time and then go back home.” Spiller added: “Every project here is just amazing. Some were in areas like chemistry and biology that I didn’t even fully understand, but they were so impressive. That’s why it was such a big surprise for us.”

Divyasri Kothapalli from the UK receives the People’s Choice Award for her solar water distillation project.

Diploma of Excellence – Türkiye

Kagan Mehmet Ozkok from Türkiye received the Diploma of Excellence for work combining AI and water efficiency. By training artificial intelligence to recognise the sound of leaking water, Ozkok developed prototypes capable of detecting leaks in public spaces. Tested under real conditions, the devices demonstrated significant water savings and are being developed further with local government.

People’s Choice Award – United Kingdom

The People’s Choice Award went to Divyasri Kothapalli from the United Kingdom for her solar water distillation project. Using a Fresnel lens to concentrate sunlight onto a boiling pot, the system condenses steam into clean water without electricity. Tested in the UK, it consistently produced safe drinking water, demonstrating potential for off-grid and rural communities.

Claudia Toussaint, Chief People and Sustainability Officer at Xylem, which sponsors the Prize, commented: “Innovation is paving the way to a more water-secure world, and the next generation is accelerating progress. The Stockholm Junior Water Prize competitors are an inspiring example of the ingenuity and passion young innovators bring to the table.”

Niklas Ruf and Jana Spiller of Germany receive the 2025 Stockholm Junior Water Prize from Crown Princess Victoria of Sweden.

A Year of Flood-Focused Excellence

Flooding is the theme of this year’s water prizes: the Stockholm Junior Water Prize recognising Ruf and Spiller’s innovation in Germany, and the Stockholm Water Prize honouring Austrian hydrologist Professor Günter Blöschl for his global leadership in flood science. Together, their work highlights the urgency of tackling flood risks locally and internationally.

German Students Awarded 2025 Stockholm Junior Water Prize for Flood Warning Innovation
H2O Team

South West Water Opens New Washdown Facility at Upper Tamar Lake to Tackle Invasive Species

H2O Team — Thu, 28 Aug 2025 15:40:55 +0000

H2O Global News
South West Water Opens New Washdown Facility at Upper Tamar Lake to Tackle Invasive Species

South West Water has introduced a new free-to-use washdown facility at Upper Tamar Lake on the Devon–Cornwall border. The initiative is designed to prevent the spread of invasive non-native species (INNS) that threaten ecosystems, drinking water supplies and local recreation.

From 31 August, visitors can use purpose-built stations to clean boats, paddleboards, bikes and model crafts, helping to stop species such as the zebra mussel from gaining a foothold in the reservoir. The opening will be led by local author Rupert Kirkwood, known as the ‘Lone Kayaker’, at 11am.

The facility includes a high-pressure washer for watercraft and a smaller wash station that doubles as a bike wash. Run-off drains into a soak-away system that traps fragments, larvae or mud—key vectors for invasive species.

Zebra mussels, an invasive species that can clog infrastructure and outcompete native wildlife, are one of the key threats targeted by the new washdown facility at Upper Tamar Lake

Why the facility matters

Upper Tamar Lake supplies drinking water to nearby communities. The region already faces risks from invasive species that can block infrastructure and disrupt habitats. Other threats include invasive aquatic plants and the American signal crayfish, which can spread on damp equipment or via standing water.

Ashley Bunning, Invasive Fish & Aquatic Biosecurity Officer at South West Water, said: “It’s often the smallest things that cause the biggest problems. A quick washdown might not seem like much, but it could be the difference between keeping our reservoir safe and facing a problem we can never undo.”

Community-driven design

The washdown has been delivered under South West Water’s environmental commitments, including those within its biodiversity strategy. The design was shaped by Tecker Ltd in collaboration with South West Lakes Trust, the Environment Agency, Bude Gig Club and regular lake users.

Upper Tamar Lake already hosts dip tanks for anglers (installed in 2020 and 2023). The new facility extends protection to all visitors, helping ensure every craft, board or bike leaves the site clean. The washdown is open daily, free to use, and automatically shuts off at night to prevent misuse.

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South West Water Opens New Washdown Facility at Upper Tamar Lake to Tackle Invasive Species
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River Deep Mountain AI releases first open-source models

H2O Team — Fri, 11 Jul 2025 09:50:13 +0000

H2O Global News
River Deep Mountain AI releases first open-source models

Collaborative innovation project River Deep Mountain AI (RDMAI) has announced the open-source release of a suite of artificial intelligence and machine learning (AI/ML) models set to transform the way water quality data is collected and used.

Funded by Ofwat’s Water Breakthrough Challenge and led by Northumbrian Water, with Spring Innovation as the knowledge-sharing partner, RDMAI is a cross-sector initiative building open-source, scalable AI tools to tackle waterbody pollution and improve river health. Data from a range of sources, including citizen science and satellites, has been used to build the models.

The release of AI/ML and remote-sensing models on the open-source platform GitHub is the project’s first major milestone, following completion of the development and initial testing phases. Throughout this period, the project team collated datasets from within and outside the sector, run experiments with AI/ML models and held co-creation sessions with partners and stakeholders.

The resulting models and datasets aim to support:

River flow predictions
Pollution source tracking
Pollution hotspot mapping

Feedback is invited at this stage to help refine and enhance the models as the project progresses.

The UK’s water environment is under pressure from population growth, climate change, pollution from multiple sources and nutrient overload. Just 14% of English rivers are meeting Water Framework Directive standards for good ecological status.

Launched in July 2024, River Deep Mountain AI aims to address this challenge by developing open-source, scalable AI/ML models to uncover pollution patterns and unlock actionable insights for protecting waterbodies.

Northumbrian Water’s project partners are: ADAS, Anglian Water, Cognizant, Northern Ireland Water, South West Water, Stream, The Rivers Trust, Google, WRc, Wessex Water and Xylem.

George Gerring, project lead, Northumbrian Water, said, “We have built a set of capabilities that use artificial intelligence, machine learning, generative AI and remote sensing to understand and predict different variables impacting waterbodies health.

“The open-source release of these models on GitHub means they are available for citizens, researchers, water organisations and NGOs to use. Any feedback on the early releases will help us refine and build on what we’ve achieved so far.”

Angela MacOscar, head of innovation, Northumbrian Water, said: “Useable data on waterbody health is disparate and hard to access, which is why the RDMAI team is working to squeeze as much actionable information out of existing data as possible.

“By integrating data from various sources, including environmental sensors, satellite imagery and citizen science, the project is bridging the data gaps in waterbody health and empowering better, faster and more effective interventions. Open-sourcing these models marks a major shift in how we collaborate to tackle environmental challenges.”

Stig Martin, global head of ocean, Cognizant, said: “This project is a testament to the power of research and development and daring to use technology to solve complex, large-scale environmental problems.

“We believe in transparency and are proud that this project is open-source, allowing everyone to see how the system is built and how it generates its insights. It has been incredibly rewarding to be part of a collaboration that is not just talking about change but is actively building the tools to make it happen.”

Phase three of the programme, now underway, will focus on model improvement, validation in new catchments and evaluating the potential to scale across the UK. The refined versions of the models are set to be released in November.

River Deep Mountain AI releases first open-source models
H2O Team