Ecological Engineers & Delivering Integrated Catchment Planning  📅 27 November 11:00-12:00 (GMT) A webinar on Nature-based Solutions (NbS) in ecological engineering, specifically in the water industry. There will be a Q&A session. Register -

"Groundwater rise and salinization under coastal cities can damage buried infrastructure, impair wastewater systems, reduce surface drainage and render groundwater unsuitable for drinking." phys.org/news/2025-11...

I love visiting London and taking the Channel Tunnel/Eurotunnel. I have always been struck by the incredible engineering that must have gone into constructing a tunnel 45 metres under the bottom of the sea that curves slightly up and down as it follows the Chalk Marl layer.

Case study 2 - risk assessment / catchment site delimitation for drinking water. Absence of tracer recovery doesn't always mean the absence of a connection!

Our TDI "Dewatering Consultant Project of the Year" 2025 Award, sitting next to a North Sea core I won last year at a quizz organised by GSEU. We're very proud of our win :)!

Man-made disasters and their long-lasting impact on 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿, human health and the environment. Pollution is not the only disaster that can affect groundwater. Subsidence because of over-extraction is a worldwide phenomenon. Let's take a look at Beijing. 𝗦𝘂𝗯𝘀𝗶𝗱𝗲𝗻𝗰𝗲 𝗼𝗳 𝗕𝗲𝗶𝗷𝗶𝗻𝗴 (𝗼𝗻𝗴𝗼𝗶𝗻𝗴, 𝗖𝗵𝗶𝗻𝗮)

how it feels to still be able to do your writing job while chatgpt is down

When performing a 𝗱𝘆𝗲 𝘁𝗿𝗮𝗰𝗲𝗿 𝘁𝗲𝘀𝘁 🧪 with monitoring at a sufficiently high temporal resolution, a 𝗿𝗲𝘀𝘁𝗶𝘁𝘂𝘁𝗶𝗼𝗻 𝗰𝘂𝗿𝘃𝗲 can be created, showing the concentration of the tracer over time.

Man-made disasters and their long-lasting impact on 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿, human health and the environment. This is a story about how a groundwater disaster was averted thanks to quick action. 𝗪𝗮𝗹𝘀𝗮𝗹𝗹 𝗖𝗮𝗻𝗮𝗹 𝗰𝘆𝗮𝗻𝗶𝗱𝗲 𝘀𝗽𝗶𝗹𝗹 (𝟮𝟬𝟮𝟰, 𝗪𝗮𝗹𝘀𝗮𝗹𝗹, 𝗨𝗞)

I’m still figuring out bluesky… but with the goal of more easily finding information I’m interested in, I started a feed and associated starter pack for Hydrological Processes as well as Hydrological Extremes. Please let me know if you want to be added to the starter pack! bsky.app/profile/did:...

𝗚𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿 𝗮𝗻𝗱 '𝘁𝗵𝗲 𝘁𝗿𝗮𝗴𝗲𝗱𝘆 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗼𝗺𝗺𝗼𝗻𝘀' - the idea that when many people have free access to a shared, finite resource, they tend to overuse it. By Marc Bierkens, professor at @utrechtuniversity.bsky.social, mapping global groundwater overuse. erc.europa.eu/projects-sta...

Groundwater level monitoring at Salisbury Cathedral. Salisbury Cathedral, built in the 13th century, is the highest is the UK reaching up to 123m and is built on wet sand and gravel close to the river Avon.

Two days of excellent talks, panel discussions, and networking at The Dewatering Institute conference, followed by a site visit of a project by Bronbemaling.com and a gala dinner with Award ceremony. Cherry on the cake 🍰 : TRAQUA won the 'Dewatering Consultant Project of the year' Award!

Second week of our 𝗱𝘆𝗲 𝘁𝗿𝗮𝗰𝗶𝗻𝗴 𝗰𝗮𝗺𝗽𝗮𝗶𝗴𝗻 🧪 for De Watergroep. The project is part of the @natalieproject.bsky.social, an EU-funded initiative that promotes 𝗻𝗮𝘁𝘂𝗿𝗲-𝗯𝗮𝘀𝗲𝗱 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 (𝗡𝗕𝗦) to address the challenges of climate change across Europe. Photo credit: Jeroen November 📸

Might be as close to the reality as any account gets. www.nature.com/articles/d41...

🌏 #Qanat, #Karez, #Kanerjing, #Foggara, #Khettara, #ViajeDeAgua, #GaleríasFiltrantes, #Puqui or #Socavón. 🔗 In part 2 of the Discover Groundwater series, we explore The History of Groundwater. You can read all about it here: un-igrac.org/latest/stori.... 🤝 @iahgroundwater.bsky.social #groundwater

Although Sistema Sac Aktun has been surpassed by Sistema Ox Bel Ha as the world’s longest underwater cave, it remains one of the most scientifically fascinating and culturally rich submerged cave systems on Earth. 🧪 sites.northwestern.edu/monroyrios/s... #Karst #Yucatán #CaveDiving

Awesome! 🤩 the caves in Yucatan with their rich ecosystems and archaeological significance must be protected from disastrous developments like the infamous #trenmaya! @pucicu.de @olakwiecien3.bsky.social

Apply to the #Ecohydro Tiny Grants for financial support to attend the @agu.org Fall Meeting!

When groundwater extraction >> recharge rates, this usually means problems. "Arizona's Willcox basin is sinking fast due to groundwater extraction" www.msn.com/en-us/weathe...

This doesn't sound good...💀🛢️ "Warming temperatures and increased precipitation in the Canadian High Arctic are mobilizing new pathways for subsurface contaminants to spread from more than 2,500 contaminated sites..." www.mcgill.ca/newsroom/cha...

Le phénomène de l'𝗶𝗻𝘃𝗲𝗿𝘀𝗮𝗰 𝗱𝗲 𝗹𝗮 𝗩𝗶𝘀𝗲, dans l’étang de Thau, montre la fragilité des nappes phréatiques côtières face aux 𝗶𝗻𝘁𝗿𝘂𝘀𝗶𝗼𝗻𝘀 𝗱’𝗲𝗮𝘂 𝘀𝗮𝗹𝗲́𝗲. La source sous-marine de la Vise rejette de l’eau douce, mais en cas de sécheresse prolongée, 𝗹𝗲 𝗳𝗹𝘂𝘅 𝘀’𝗶𝗻𝘃𝗲𝗿𝘀𝗲. www.pourlascience.fr/sd/geoscienc...

Injection of fluorescent tracer (sodium fluorescein) with the aim to use the chalk underground for an Aquifer Storage Transfer and Recovery project, a natural buffer to store purified water. Fluorescein looks blood red in high concentrations. First (surprising) results are in. More to come.

Man-made disasters and their long-lasting impact on 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿, human health and the environment. Not man-made in the strict sense, as the arsenic is naturally present in the sediment, but certainly caused by human interference. 𝗔𝗿𝘀𝗲𝗻𝗶𝗰 𝗰𝗼𝗻𝘁𝗮𝗺𝗶𝗻𝗮𝘁𝗲𝗱 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿 𝗶𝗻 𝘁𝗵𝗲 𝗚𝗮𝗻𝗴𝗲𝘀 𝗗𝗲𝗹𝘁𝗮 (𝟭𝟵𝟳𝟬𝘀-𝟭𝟵𝟵𝟬𝘀)

There's worse weather for field day 😊🌞. Collecting the first data of our dye tracer injection we performed yesterday. The goal is to analyse the water storage capacity of the chalk, as part of the @natalieproject.bsky.social.

We were featured in Neomag, the magazine of the Centre for Technological Innovation in Sustainable Construction. For the construction industry we focus on providing expertise on groundwater management in heterogenous underground, rainwater and used water infiltration, and flood risk assessments.

Tracer injection for a ASTR (Aquifer Storage Transport and Recovery) project where the chalk underground is used as a natural buffer and storage for treated wastewater. This is part of the EU funded @natalieproject.bsky.social. Images by Jeroen November from De Watergroep.

I love this idea of relatively simple physics being used practically to get large amounts of PFAS out of wastewater. Foam! deingenieur.nl/artikelen/de...

Spotted some fun graffiti using classic Belgian comics characters on the enclosure around a building site in Brussels Brussels has proper “official” commissioned murals on buildings around the city but this is likely rogue agents having a laugh

Climate change is resulting in more weather extremes, with the catastrophic category 5 Hurricane Melissa, one of the largest ever recorded, hitting Jamaica only a few days ago, to an exceptionally quiet hurricane season in Florida, affecting groundwater recharge. www.wuft.org/text/busines...

We often think about flooding as a direct result of heavy rainfall. However, 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿 𝗳𝗹𝗼𝗼𝗱 𝗿𝗶𝘀𝗸 also needs to be taken into account, especially in regions with a lot of abandoned flooded mines. Interesting PhD position at @newcastleuni.bsky.social. www.jobs.ac.uk/job/DPG360/p...

TRAQUA's newsletter has arrived 🥳. 𝗣𝗹𝗲𝗻𝘁𝘆 𝗼𝗳 𝗻𝗲𝘄 𝗮𝗿𝘁𝗶𝗰𝗹𝗲𝘀. Congratulations to the authors who had their work published this month 👏! A new project on 𝗮𝗾𝘂𝗮𝘁𝗵𝗲𝗿𝗺𝗮𝗹 𝗲𝗻𝗲𝗿𝗴𝘆. Our most popular LI post on '𝗪𝗵𝗮𝘁 𝗱𝗼𝗲𝘀 𝗮 𝗵𝘆𝗱𝗿𝗼𝗴𝗲𝗼𝗹𝗼𝗴𝗶𝘀𝘁 𝗱𝗼?'. And many 𝘂𝗽𝗰𝗼𝗺𝗶𝗻𝗴 𝗲𝘃𝗲𝗻𝘁𝘀. www.linkedin.com/pulse/traqua...

Man-made disasters and their long-lasting impact on 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿, human health and the environment. 𝗠𝗶𝘁𝗲𝗻𝗶 𝗣𝗙𝗔𝗦 𝗽𝗼𝗹𝗹𝘂𝘁𝗶𝗼𝗻 (𝟭𝟵𝟲𝟬𝘀 - 𝟮𝟬𝟭𝟴, 𝗜𝘁𝗮𝗹𝘆) Large-scale pollution events usually receive a lot of media attention, but many other slow forms of pollution fly under the radar.

𝗟𝗲 𝗺𝘆𝘀𝘁𝗲̀𝗿𝗲 𝗱𝗲 𝗹𝗮 𝗳𝗹𝗮𝗾𝘂𝗲 𝘃𝗲𝗿𝘁 𝗳𝗹𝘂𝗼 🧙‍♂️ L'𝗲𝘀𝘀𝗮𝗶 𝗱𝗲 𝘁𝗿𝗮𝗰̧𝗮𝗴𝗲 à l'aide de traceurs fluorescents est utilisé en 𝗵𝘆𝗱𝗿𝗼𝗴𝗲́𝗼𝗹𝗼𝗴𝗶𝗲 ou pour caractériser l'𝗲́𝗰𝗼𝘂𝗹𝗲𝗺𝗲𝗻𝘁 𝗱𝗲𝘀 𝗲𝗮𝘂𝘅 𝘀𝗼𝘂𝘁𝗲𝗿𝗿𝗮𝗶𝗻𝗲𝘀 dans les systèmes karstiques (grottes)... www.rtbf.be/article/le-m...

The Brussels public prosecutor has opened a judicial inquiry following a report by the Court of Auditors on the "Metro 3" project.

TRAQUA is involved in an 𝗮𝗾𝘂𝗮𝘁𝗵𝗲𝗿𝗺𝗮𝗹 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 🌊🌡️. An aquathermal system uses the thermal energy from natural or waste water sources (rivers, lakes, seawater or industrial wastewate) to heat or cool buildings. An aquathermal system uses a heat pump to extract low-temperature heat from the water.

I am delighted to announce that TRAQUA has been shortlisted for The Dewatering Institute's 2025 awards. We applied for the '𝗗𝗲𝘄𝗮𝘁𝗲𝗿𝗶𝗻𝗴 𝗖𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗳 𝘁𝗵𝗲 𝗬𝗲𝗮𝗿' category for our hydrogeological study on a tunnelling project, for which we applied our expertise in fluorescent dye tracing 🧪.

Brussels is categorised as having 'hard to very hard' water - but while that might be a nuisance for appliances, it is entirely within legal limits.

In case you needed proof that our 𝗦𝗧𝗥𝗘𝗔𝗠 𝗳𝗹𝘂𝗼𝗿𝗼𝗺𝗲𝘁𝗲𝗿𝘀 are compact, lightweight, and easy to install... Fluorescent dye tracing in cave systems in Mexico, installation by Maria de Lourdes Vásquez Cruz. More info about our instruments that 𝘄𝗲 𝗼𝗳𝗳𝗲𝗿 𝗳𝗼𝗿 𝗿𝗲𝗻𝘁 : www.traqua.be/en/technologie

India is the world’s largest user of groundwater, relying on it for agriculture, industry and drinking water. However, aquifers in countries such as India, the US and China are being exploited much faster than they can be replenished. @truthout.org truthout.org/articles/the...

La plataforma caliza de Yucatán, entre el Caribe y el Golfo de México, está muy erosionada y karstificación activa, lo que aumenta su permeabilidad. Aquí propongo un modelo conceptual para la formación del "anillo de cenotes", un denso arco de cenotes alineados. 🧪🔗 www.youtube.com/watch?v=TZzB...

Dye tracing here...dye tracing there...dye tracing everywhere 😉🧪💧!

MeteoSaver, un logiciel développé à la VUB qui permet de transcrire en quelques minutes des relevés météorologiques manuscrits en données numériques, a reçu une mention spéciale dans la liste annuelle de TIME des innovations les plus marquantes au monde. press.vub.ac.be/un-logiciel-...

Man-made disasters and their long-lasting impact on 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿, human health and the environment. 𝗧𝗮𝗿𝗸𝘄𝗮 𝗴𝗼𝗹𝗱 𝗺𝗶𝗻𝗲 𝘁𝗮𝗶𝗹𝗶𝗻𝗴𝘀 𝗱𝗮𝗺 (𝟮𝟬𝟬𝟭, 𝗚𝗵𝗮𝗻𝗮)

L’Ardenne va retrouver souffle et vitalité. Avec le lancement officiel du projet LIFE ArdennEislek, un vaste programme de restauration écologique se met concrètement en marche pour redonner vie aux prairies, landes et forêts emblématiques de la région. www.natagora.be/news/restaur...

Si usáis toallitas húmedas NO LAS TIRÉIS POR EL WC, NO SON BIODEGRADABLES AUNQUE LO INDIQUE EL PAQUETE, PONED UNA PAPELERA AL LADO Y TIRADLAS AHÍ. Aunque lo mejor es usar papel higénico y una agüita en el bidé.

🎤 Speaker Spotlight – TDI Conference 2025 🌍 Featured Speaker Sofie de Volder, Co-founder & Business Development Manager at TRAQUA (Belgium) Sharing insights on “Groundwater Flow Velocities and Artificial Ground Freezing.” 📅 11–12 November 2025 📍 H’ART Museum, Amsterdam 👉 Tickets: buff.ly/kcjJKvp

🚨 𝗗𝗘𝗔𝗗𝗟𝗜𝗡𝗘 : 𝗣𝗮𝗿𝘁𝗶𝗰𝗶𝗽𝗮𝘁𝗶𝗼𝗻 𝗴𝗿𝗮𝘁𝘂𝗶𝘁𝗲 𝘀𝘂𝗿 𝗶𝗻𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻 𝗮𝘃𝗮𝗻𝘁 𝗹𝗲 𝟮𝟯 𝗼𝗰𝘁𝗼𝗯𝗿𝗲 𝟮𝟬𝟮𝟱 Les inscriptions au 𝗖𝗮𝗽 𝘀𝘂𝗿 𝗹𝗮 𝗿𝗲́𝘀𝗶𝗹𝗶𝗲𝗻𝗰𝗲 : 𝗝𝗼𝘂𝗿𝗻𝗲́𝗲 𝗱𝗲 𝗹’𝗶𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝗼𝗻 𝘀𝗲𝗰𝘁𝗼𝗿𝗶𝗲𝗹𝗹𝗲, organisé par la Société wallonne des eaux (SWDE) et la SPGE, se terminent bientôt!