Pour lire notre article complet et accéder aux résultats du projet NUTRI-Karst :

Pourquoi la qualité des eaux se dégrade-t-elle dans le Jura, territoire d’élevage, alors que les rejets en nutriments issus de l’agriculture ne s’intensifient pas ? 𝗟𝗲 𝗽𝗿𝗼𝗷𝗲𝘁 𝗡𝗨𝗧𝗥𝗜-𝗞𝗮𝗿𝘀𝘁 𝗮𝗽𝗽𝗼𝗿𝘁𝗲 𝘂𝗻 𝗲́𝗰𝗹𝗮𝗶𝗿𝗮𝗴𝗲 𝗺𝗮𝗷𝗲𝘂𝗿, 𝗮𝗽𝗿𝗲̀𝘀 𝘀𝗶𝘅 𝗮𝗻𝗻𝗲́𝗲𝘀 𝗱𝗲 𝗿𝗲𝗰𝗵𝗲𝗿𝗰𝗵𝗲𝘀

𝗙𝗶𝗲𝗹𝗱 𝗵𝘆𝗱𝗿𝗼𝗴𝗲𝗼𝗹𝗼𝗴𝗶𝘀𝘁𝘀, 𝗹𝗲𝘁'𝘀 𝗽𝗹𝗮𝘆 𝗮 𝗴𝗮𝗺𝗲 𝗼𝗳 𝗕𝗜𝗡𝗚𝗢. What are the reasons that your planned fieldwork has been delayed? So far, we haven't lost any instruments or experienced a hurricane, but we can definitely tick the other boxes! 𝗪𝗵𝗮𝘁 𝗮𝗯𝗼𝘂𝘁 𝘆𝗼𝘂?

Restaurer les cycles naturels de l’eau pour limiter les inondations Alors que l’on prédit des épisodes de précipitations de plus en plus intenses en Belgique suite au changement climatique, quelles solutions pouvons-nous envisager pour limiter les futures inondations ? L’hydrologie régénérative,…

I’m delighted to be working with colleagues and a former student from Sri Lanka on karst aquifers in the Jaffna Peninsula, which are vital for development yet increasingly threatened by saltwater intrusion and anthropogenic pressures. Photo: Nilavarai Well, exposing a limestone cavern.

The quintessential tool of geologists is the rock hammer 🔨. What instrument would you say is most associated with 𝗵𝘆𝗱𝗿𝗼geologists 💧? I'm going to say the water level meter 📏, unless you have any other suggestions?

"We are very well aware of the fact that X for Grok is now offering a spicy mode showing explicit sexual content. This is not spicy. This is illegal. This is appalling. This is disgusting. I can confirm we are very seriously looking into this matter." — Spokesperson @thomasregnier.ec.europa.eu

The Saudi Arabian dairy company Fondomonte grows alfalfa in dry Arizona. The crops are then exported to Saudi Arabia as feed, effectively 'exporting' its groundwater exploitation with unlimited water extraction rights abroad. phys.org/news/2026-01...

𝗛𝘆𝗱𝗿𝗼-𝘄𝗵𝗮𝘁? 🌊💧 𝗜𝘁'𝘀 𝗮 𝗻𝗲𝘄 𝘆𝗲𝗮𝗿, 𝘀𝗼 𝗹𝗲𝘁'𝘀 𝗰𝗹𝗲𝗮𝗿 𝘂𝗽 𝘁𝗵𝗲 𝗰𝗼𝗻𝗳𝘂𝘀𝗶𝗼𝗻! Have you ever wondered what the difference is between 𝘩𝘺𝘥𝘳𝘰𝘭𝘰𝘨𝘺, 𝘩𝘺𝘥𝘳𝘰𝘨𝘦𝘰𝘭𝘰𝘨𝘺, 𝘩𝘺𝘥𝘳𝘰𝘨𝘳𝘢𝘱𝘩𝘺 and 𝘩𝘺𝘥𝘳𝘢𝘶𝘭𝘪𝘤𝘴? These terms are sometimes used interchangeably, but each one plays a unique role in how we understand and manage water.

A beautiful snow-covered park in Brussels. It is also great for groundwater replenishment, as the snow melts slowly, allowing more time for the water to infiltrate than during a heavy rainstorm, for example. However, the effect of all the salt on the roads is a whole other issue.

💧 𝟭𝟬 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿 𝗺𝘆𝘁𝗵𝘀 𝗱𝗲𝗯𝘂𝗻𝗸𝗲𝗱! 🧐 Groundwater is one of our most important resources, but it is often misunderstood. Let's clear up some common misconceptions at the start of 2026!

We are delighted to present this recently published article, to which Romain Deleu and Amaël Poulain contributed, along with our STREAM fluorometers (www.traqua.be/en/technologie). Congratulations to the entire team led by HALLET Vincent! journals.openedition.org/dynenviron/9...

Blue Mind by marine biologist Wallace J. Nichols. I haven't read it yet, but apparently being an aquaholic is good for your (mental) health 😁💧. All the more reason to protect our blue gold.

Positive news for the 'outsources' groundwater extraction for Saudi-Arabia owned hay production in Arizona. I mentioned this story already in an earlier post : bsky.app/profile/traq... www.latimes.com/environment/...

I wish all my connections a wonderful New Year ✨ filled with joy, laughter, health, successes and manageable lows. Here's a smiling rock to start 2026 with a good mood.

It's the last Newsletter of 2025! ✨ Enjoy the New Year celebrations and see you in 2026 🥳 www.linkedin.com/pulse/traqua...

𝗔𝗾𝘂𝗮𝗵𝗼𝗹𝗶𝗰 𝗻𝗼𝘂𝗻 /əˈ𝗸𝘄ɑː𝗵ɒ𝗹ɪ𝗸/ 1. A person with an intense passion or obsession for water, particularly for water-related activities. 2. Someone who experiences a deep emotional or psychological attachment to water, often seeking it out for relaxation, inspiration, or recreation.

Brigitte Bardot supported the far-right politician Marine Le Pen and was married to Bernard d'Ormale, a former advisor to Jean-Marie Le Pen. She also said a lot of racist, anti-Muslim, and homophobic stuff. RIP.

TRAQUA is officially 𝗼𝘂𝘁 𝗼𝗳 𝗼𝗳𝗳𝗶𝗰𝗲 until 5 January. We wish everyone a 𝘄𝗼𝗻𝗱𝗲𝗿𝗳𝘂𝗹 𝗛𝗼𝗹𝗶𝗱𝗮𝘆 𝗦𝗲𝗮𝘀𝗼𝗻🎄 and a 𝗵𝗮𝗽𝗽𝘆, 𝗵𝗲𝗮𝗹𝘁𝗵𝘆, 𝗮𝗻𝗱 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝟮𝟬𝟮𝟲 ✨🎇! We would also like to thank our clients for their great collaboration, and we are looking forward to the interesting projects that next year will bring.

Surrounded by children this holiday season? What better opportunity to introduce them to some classics on environmental conservation. I'm a huge fan of Studio Ghibli, which has environmental conservation as a central theme throughout its entire collection. 𝗔𝗻𝘆 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗮𝘁𝗶𝗼𝗻𝘀 𝗼𝗳 𝘆𝗼𝘂𝗿 𝗼𝘄𝗻?

𝗛𝗮𝘃𝗲 𝗮 𝘃𝗲𝗿𝘆 𝗵𝗮𝗽𝗽𝘆 𝗵𝗼𝗹𝗶𝗱𝗮𝘆 𝘀𝗲𝗮𝘀𝗼𝗻 𝗳𝗶𝗹𝗹𝗲𝗱 𝘄𝗶𝘁𝗵 𝗯𝗼𝗼𝗸𝘀, 𝗲𝘃𝗲𝗿𝘆𝗼𝗻𝗲! ☺️📖☕🫖✨ Since I didn't manage to finish any of the books on last year's list (except for The Water Book by Alok Jha and Bitch by Lucy Cooke), I'm reposting it again. 😭 Better luck in 2026 🎇😅!

"...areas losing freshwater have greatly expanded over the past 20 years." This phenomenon is called 𝗰𝗼𝗻𝘁𝗶𝗻𝗲𝗻𝘁𝗮𝗹 𝗱𝗿𝘆𝗶𝗻𝗴. No surprise for those working in water management, but we can't point out this threat to our water resources often enough. yaleclimateconnections.org/2025/12/a-sl...

Un projet de remédiation des sols et des eaux souterraines est en cours de planification à Louvain-la-Neuve afin d'éliminer une ancienne pollution au chloroforme. Intéressant de voir le schéma de traitement. www.rtbf.be/article/poll...

By the end of the year, I usually try to update our website. I have added a page on '𝗗𝘆𝗲 𝗧𝗿𝗮𝗰𝗶𝗻𝗴' 🧪specifically: www.traqua.be/en/expertise And some case studies to our '𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀' page: www.traqua.be/en/projets. Also notice our new The Dewatering Institute Award Badge next to our logo 😉.

Case study 6 - Aquifer Storage and Recovery and groundwater residence times 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.

Interesting article about salinization of coastal groundwater and potential mitigation strategies. www.openaccessgovernment.org/article/sali...

Last few days before the Holiday Season and my laptop is seeing Nirvana. Is there something like the 'white screen of death'?

Man-made disasters and their long-lasting impact on 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿, human health and the environment. 𝗚𝗼𝗹𝗱 𝗞𝗶𝗻𝗴 𝗠𝗶𝗻𝗲 𝗱𝗶𝘀𝗮𝘀𝘁𝗲𝗿 (𝟮𝟬𝟭𝟱, 𝗖𝗼𝗹𝗼𝗿𝗮𝗱𝗼, 𝗨𝗦𝗔)

We get the muddy boots...you get the quality groundwater data to perform your next project safely and efficiently. Some of our past projects : www.traqua.be/en/projets Contact us to discuss your project at [email protected]

📅 Save the date! Join us week commencing 27 April 2026 at the IEA Mine Water Energy Symposium, for two days of talks from global experts on mine water heating, cooling and storage schemes worldwide. ♨️ More details soon.

𝗚𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿💧 𝗮𝗻𝗱 𝗶𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 🏰: 𝗮 𝗹𝗼𝘃𝗲-𝗵𝗮𝘁𝗲 𝗿𝗲𝗹𝗮𝘁𝗶𝗼𝗻𝘀𝗵𝗶𝗽? Groundwater is often considered a nuisance during construction work and for existing infrastructure. However, groundwater can also have 𝗮 𝘀𝘁𝗮𝗯𝗶𝗹𝗶𝘀𝗶𝗻𝗴 𝗲𝗳𝗳𝗲𝗰𝘁 and help maintain the integrity of the underground or infrastructures.

🌠🔭Le pic des #Géminides aura lieu le 13-14 déc et celui des #Quadrantides le 2-4 jan. Si vous arrivez à trouver un ciel nocturne dégagé, vous aurez peut-être la chance d’observer des étoiles filantes. Plus d'infos sur cette page de @BIRA_IASB : www.aeronomie.be/fr/...#Géminides#Quadrantides#astronomie

Impressive work by @bgs.ac.uk on a 3D-model of Gateshead to better understand and respond to groundwater flooding. The development of the model is part of Project Groundwater Northumbria. www.bgs.ac.uk/news/new-3d-...

Managed Aquifer Recharge could be a solution in areas with over-extraction of groundwater resources to avoid ground subsidence or saltwater infiltration. However, forced injection of water in an aquifer also increases the risk of injection-induced seismicity. www.science.org/content/arti...

SAVE THE DATE ! We are back in person for the MINE WATER ENERGY SYMPOSIM 2026 in Newcastle-Gateshead UK www.iea-gia.org/event/2026-m... wkbg 27th April 2026 - actual dates TBC soon

Case study 5 - recharge in karst systems and effect of the vadose zone Another project in which we employed several STREAM fluorometers. The regular light emission of the optical probes, installed throughout the cave system, made it look like Christmas lights! 🎆🎄

Man-made disasters and their long-lasting impact on 𝗴𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿, human health and the environment. This is a prime example of a country exporting the disaster to another country and creating a crisis abroad. 𝗢𝘃𝗲𝗿-𝗲𝘅𝘁𝗿𝗮𝗰𝘁𝗶𝗼𝗻 𝗶𝗻 𝗦𝗮𝘂𝗱𝗶 𝗔𝗿𝗮𝗯𝗶𝗮 (𝟭𝟵𝟴𝟬𝘀–𝗽𝗿𝗲𝘀𝗲𝗻𝘁)

December is the most dangerous month of the year. Everybody starts sharing book recommendations, and I have no choice but to add them to my never-ending 'to read' list. I hope the 'longevity' hype works because I'll need to live to at least 100 to get through my list (currently stands at 456 books).

We can not increase energy consumption and reduce climate impacts. The world has yet to learn the fundamental nature of our existance; 1. We live on a finite planet with a carrying capacity. 2. We are dependent on mother nature. 3. Mother nature does not need us.

Ever wondered how hydrogeologists track groundwater flow 💧🔍, predict potential contamination pathways, or discover groundwater connectivity? Optical field fluorometers 🔦 are the real game-changer! Here’s how they work 🧵

As I mentioned in an earlier post, the Folkestone Chunnel entrance is an impressive piece of engineering in a geologically challenging environment, but of course, the Chunnel/Eurotunnel itself is equally impressive.

🎶𝗭𝗶𝗲 𝗴𝗶𝗻𝗱𝘀 𝗸𝗼𝗺𝘁 𝗱𝗲 𝘀𝘁𝗼𝗼𝗺𝗯𝗼𝗼𝘁...🚢🎅🍬 Today, on 6 December, Belgian children celebrate 𝗦𝗶𝗻𝘁𝗲𝗿𝗸𝗹𝗮𝗮𝘀, a tradition that dates back to the 4th century.

I just got my flu ánd covid shots yesterday and I feel not so great 🥴...but hello family dinners over the Holiday Season 🎄🎅🎁. #vaccinessavelives

Tired: all this anti-vax activity and policy Wired: vaccines cause adults Inspired: also recognizing that neurodiversity is good, and building a more inclusive and accepting society with accommodations and opportunities for all

We have a new position paper, where we advocate for the wider use of underground observatories to understand how groundwater is replenished. By directly observing these recharge events, we can make a direct link between groundwater replenishment, weather and climate. eos.org/science-upda...

Batibouw, Belgium’s leading construction fair, returns with its 67th edition scheduled from 7 to 15 February 2026 at Brussels Expo.

An interesting article has just been published by the International Hydrographic Organization (IHO) about an innovative, open-access tool for performing bathymetry in cave systems, developed by Guy Van Rentergem. ihr.iho.int/articles/bat...

Case study 4 - fluorescent dye tracing to characterise a surface water network. This was a fun one where we could employ 11 of our compact STREAM fluorometers at once for data with a high spatio-temporal resolution. 1 large monitoring network 1 tracer injection plenty of data and clear outcomes

Case study 3 - fluorescent dye tracing in open-loop geothermal systems (ATES). Did you know tracer tests can really be beneficial for the efficiency of your geothermal project? Don't hesitate to contact us for more information : [email protected]