SubSol Newsletter, October 2017


SUBsurface Water SOLutions




SubSol_logo_RGBDear Readers,


We’re excited to share the second SubSol Newsletter with you. You will read about recent project highlights, receive an update about current activities at replication and target sites as well as discover what tasks are ahead of the project consortium. We hope you enjoy reading this newsletter and look forward to cooperating in the future.


Warm Regards,

The SubSol Project Team





New horizontal directional drilled well installed in Zeeland area (The Netherlands)

Horizontal directional drilled wells (HDDW) enable a better depth control on groundwater abstraction and infiltration. Within Subsol, we develop a cost-effective and robust HDDW for SWS implementation. Last week, a new, low-cost version of the HDDW was installed in Groede.


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Drought in the southwest of The Netherlands: subsurface water solutions into

A dry winter season and a firm drought during the spring, has recently led to water scarcity in the southwest of the Netherlands. A good test for the SWS systems in Nootdorp, Westland, Ovezande, and Dinteloord.


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Field visits of NTUA students in Schinias pilot (Greece)

The School of Mining and Metallurgical Engineering of the National Technical University of Athens organised two field visits in the Schinias pilot of SUBSOL, as it is currently operational.


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18 months SUBSOL, intermediate evaluation of project results

The consortium partners have marked the first 18 months of SUBSOL during their Project Steering Board meeting in Copenhagen on the 6th and 7th of April.


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Validated regional scale groundwater model Noardburgum analyses with a regional scale SEAWAR groundwater model indicate that 2 million m³ of freshwater can be produced at Noardburgum in a sustainable way by applying the Freshkeeper concept. Vitens aims at full scale application of this SWS concept in 2018.


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SWS pilot test site in Schinias, Greece

The Schinias case demonstrates how a currently unused water resource, can be turned into a source for protection.


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First SUBSOL automated control unit deployed first version of a SUBSOL automated control unit was deployed at the Westland ASR-Coastal site to improve the infiltration and recovery process.


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Rapid ASR developments in Dinteloord

The developer of the Nieuw-Prinsenland greenhouse area in Dinteloord decides to expand the ASR-coastal system to enlarge freshwater supply.


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18 months SUBSOL, intermediate evaluation of project results

During the first day of the meeting organized by the Geological Survey of Denmark and Greenland (GEUS) the Consortium Partners together with members of the Project Advisory Committee (PAC consisting of Enrique Fernández Escalante and Andrew Hughes) discussed the results of the first half of the project on Subsurface Water Solutions (SWS) as well as the challenges for the next and final 18 months of the project.


In short, we concluded that the successful implementation of full scale SWS references in SUBSOL and the ongoing demonstration of SWS at the four replication sites in  Denmark, Greece, The Netherlands and Mexico fully support market uptake of SWS as robust measures to secure freshwater supply and to enable water reuse in water scarce areas worldwide. Besides technically facilitating water reuse, there is a growing awareness that the subsurface may also play a key role in the public acceptance of water reuse.


Within SUBSOL a flexible web-based SWS knowledge environment is developed to support future users in applying SWS. The Knowledge environment includes a knowledge database, a marketplace and a toolkit with operational tools such as an online data monitoring dashboard to optimise SWS application and a location identification tool for SWS wells. Several elements of the knowledge environment have already been developed and will be tested by the SUBSOL partners in the next months. The SWS knowledge environment will be linked to initiatives and web-based platforms to secure application after the project lifetime.


The successful implementation of SWS strongly depends on awareness among regional stakeholders. Within SUBSOL a number of participatory Technology Assessments have been carried out to increase awareness at replication sites. Based on initial market analyses in selected regions worldwide, missions to target regions show promising results for successful market uptake of SWS.


Subsol replication site Falster

The second day of the meeting included a visit to the SUBSOL replication site on Falster Island to experience the coastline and the experimental activities of GEUS to optimize the setup for SWS to secure the availability of freshwater to the populated coastal recreation area. Specifically, tracer experiments to identify water flows in the complex, fractured chalk aquifer were explained and discussed.


The 18 months periodic report describing the progress of SUBSOL has recently been uploaded to the European Commission.





Upcoming Events




25 to 26


Tangshan, China: Innovative Patterns towards Productive and Profitable Coastal Agriculture

Hosted by the Institute of Coastal Agriculture of the Hebei Academy of Agriculture and Forestry Sciences






30 to 03


4th Amsterdam International Water Week

The Amsterdam International Water Week (AIWW) Conference is the platform for new alliances and fresh ideas: connecting industry, science, business, policy and technology.


[More information]





18 to 21


IWA World Water Congress and Exhibition, Tokyo, Japan

Tokyo is one of the World’s truly global cities. Hundreds of years ago it was often referred to as a water city, and today the urban life of its citizens and most of its urban activities are still deeply connected with water. It is fitting that the IWA World Water Congress & Exhibition 2018 will shine a light on Tokyo the modern water city. We look forward to bringing the international water community together in Tokyo to share knowledge and learn from each other”.


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Madrid, Spain: International Association of Hydrogeologists Commission on Managing Aquifer Recharge (IAH-MAR)

Content is yet to be determined.


[More information]





For more information or questions about the SubSol project, please contact:


Bianca van der Wolf

Project assistant Subsol


SUBSOL has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 642228