State-of-the-art infrastructure for high quality water


For the exploitation of surface water resources, the SWDE has seven production centres, each one of which is equipped with a treatment plant. Inventory.

As regards water treatment, the SWDE has developed a very high level of expertise, in particular by using the most state-of-the-art techniques such as that of nanofiltration implemented at the Gaurain-Ramecroix plant in 2002 and then at the Stembert and Eupen stations in 2009. The SWDE was the first Belgian company to use this process.


Station de Gaurain-RamecroixThe Gaurain-Ramecroix production site (also called Transhennuyère), operational since 2002, pumps and treats the water originating from several nearby quarries. High pressure pumps direct the treated water towards the municipalities of Western Hainaut and Flanders.  It has a treatment capacity of 1100 m3 per hour, i.e. 26,400 m3 per day or 10 million m3 per year.






The Soignies plant was commissioned in 2007. The water originates from the nearby Hainaut quarry. The plant treats 480 m3 per hour, i.e. 10,000 m3 per day or 4 million m3 per year. It supplies water to several Hainaut, Walloon Brabant and West Flanders municipalities.

Station de EcaussinesEcaussinnes

The water is drawn at the bottom of the nearby Restaumont quarry. The Ecaussinnes plant has a treatment capacity of 500 m3 per hour, i.e. 12,000 m3 per day or 4.38 million m3 per year. The water produced supplies the Feluy industrial estate, an important industrial actor in the region.


The Jambes site has been in existence since 1890 and is one of the SWDE's oldest water intake sites. The current treatment plant has been operational since the twenty-first century. With a flow rate of 10,000 m³ per day, it serves Namur centre, Jambes, Erpent, Wierde, Nanine, Wépion and Malonne

Station de StembertStembert

Like the Eupen plant, it has optimised facilities that meet European standards. The plant serves the Eupen and Verviers region, the Pays de Herve and the limits of Liège. It has a capacity of 110,000 m3 per day (when combined with that of the Eupen plant), making it one of the largest in Europe.





The Ry de Rome dam complex supplies the region of Couvin, the Viroin valley, the dam area of Eau d’Heure and the municipalities of Philippeville and Florennes.

Station de traitement EupenEupen

The facilities have been modernised and meet European standards. The plant treats water originating from the Vesdre and Gileppe dams. It supplies drinking water to several municipalities of the Province of Liège. It has a capacity of 110,000 m3 per day (when combined with that of the Stembert plant), making it one of the largest in Europe.



station de Nisramont


The Nisramont dam complex serves the municipalities of Marche and the north of the province of Luxembourg, as well as the Bastogne plateau (as far as Martelange).