Hauts-de-Seine Departmental Council (France) and SUEZ sign the new public service contract for the wastewater treatment of the department

On Tuesday 20 November 2018, Patrick Devedjian, President of Hauts-de-Seine Departmental Council, and Jean-Louis Chaussade, CEO of SUEZ, sign the department’s new public service contract for wastewater treatment.

The contract, which will benefit 1.6 million inhabitants, is the largest of its kind covering wastewater network operation in the entire Île-de-France region. It focuses on two key objectives: to control discharge during wet weather and to manage stormwater in urban areas. The contract comes into effect on 1 January 2019.

Patrick Devedjian, President of Hauts-de-Seine Departmental Council : « I am delighted with this partnership with SUEZ, which marks the operation of our department wastewater network by innovation and performance for our users and the River Seine protection. »

A high-quality service to protect resources

The Hauts-de-Seine department (France) chose SUEZ expertise to put its wastewater public service into performance and innovation by: 

  • Securing the 15 pumping stations that lift wastewater and protect the wastewater operation in the case of the River Seine flooding , plus the hundreds storm overflows,
  • Designing new, essentially electric-powered equipment to ensure facilities can return to service quicker in the case of the River Seine flooding,
  • Implementing predictive management of the entire network to maximise structures’ water retention capacity, reduce pollution of the natural habitat caused by stormwater and reduce networks overflow in public space.

The solutions will ensure that the department and its facilities are better equipped to withstand bad weather.

Innovation to benefit the region

Digital technology, combined with the expertise of operational teams, is opening up new possibilities:

  • Improvement of “GAIA” management system by interconnection of existing tools can monitor how the network is performing in real time, anticipate extreme weather events more reliably and provide a better understanding of regional planning,
  • Updated information systems, 3D digital modelling of networks and Building Information Modeling (BIM) make maintenance work easier and safer.