Treatment of surface water


For the exploitation of surface water resources, we have 9 production centres, each equipped with a treatment plant.


When it comes to water treatment, we have developed cutting-edge know-how, using the most advanced techniques such as nanofiltration, which was implemented at the Gaurain-Ramecroix plant in 2002, and then at the Stembert and Eupen plants in 2009. We were the first Belgian company to use this process.

Gaurain-Ramecroix production site


In operation since 2002, the Gaurain-Ramecroix (also known as Transhennuyère) production centre pumps and treats water from several surrounding quarries.  

Processing capacity: 40,800 m³/day.

High-pressure pumps send the treated water to municipalities in Western Hainaut and Flanders.

See brochure


Soignies production site

  • The Soignies plant was commissioned in 2007. The raw water comes from the Hainaut quarry and the nearby Clipot quarry as well as from the Bajenrieux and Neufvilles wells.
  • Processing capacity: 19,200 m³/day.
  • It supplies water to several municipalities in Hainaut, Walloon Brabant and West Flanders.

See brochure


Ecaussinnes production site



The water is drawn from the nearby Restaumont quarry.

Processing capacity: 28,800 m³/day.  

The water produced supplies the municipality of Ecaussines, the Feluy industrial estate, an important industrial player in the region, and several municipalities in West Flanders.

See brochure



Eupen production site



The facilities have been modernised and meet European standards. The plant treats water from the Vesdre dam.

Processing capacity:  65,000 m³/day.

It supplies drinking water to the municipality of Eupen and to the municipalities in the northern part of the Herve region.

See brochure


Stembert production site


Like the Eupen plant, it boasts upgraded facilities that meet European standards.

Processing capacity:  45,000 m³/day.

The plant serves the Verviers and Stavelot regions.

See brochure


Malmédy Chôdes production site

  • The plant is fed by water from the Robertville dam.
  • Processing capacity: 4,800 m³/day.
  • It supplies drinking water to the town of Malmédy and its surroundings.


Couvin production site

  • The plant is fed by water from the Ry de Rome dam.
  • Processing capacity: 12,000 m³/day. 
  • The Ry de Rome dam complex supplies the Couvin region, the Viroin valley, part of the Eau d'Heure dam area and the municipalities of Philippeville and Florennes.

See brochure


Nisramont production site


The plant is fed by water from the Nisramont dam.

Processing capacity: 24,000 m³/day.

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

See brochure



Libramont Bras production site

  • The Bras site is fed by the water intake of the Bras pond. It is fed by two rivers: the Lhomme and the Barrière.
  • Processing capacity: 6,000 m³/day but limited to 1,700 m³/day by the water intake permit. 
  • The plant supplies the Recogne-Libramont industrial estate.