Eiffage Génie Civil and VINCI Construction secured in consortium with Veolia the design and build contract for the civil engineering of three SEDIF water treatment plants, worth more than €400 million

Vélizy-Villacoublay and Nanterre, 3 juin 2024

17:40

Eiffage Génie Civil and VINCI Construction secured in consortium  with Veolia the design and build contract for the civil engineering 

of three SEDIF water treatment plants, worth more than €400 million

The consortium represented by Eiffage Génie Civil (mandatory) and Chantiers Modernes Construction, subsidiary of VINCI Construction, were selected by Veolia for the civil engineering design and build of three water treatment plants. This contract is part of the concession awarded to Veolia by Syndicat des Eaux d’Île-de-France (SEDIF) to manage public drinking water services in Île-de-France region. It is worth more than €400 million, to be shared equally between Eiffage Génie Civil and Chantiers Modernes Construction.

The contract includes the design and construction of building frameworks for the new lowpressure reverse osmosis (LPRO)* treatment plants, the upgrading of power supply for the water treatment plants in Neuilly-sur-Marne and Choisy-le-Roi, and the conversion of the Méry-sur-Oise plant to equip it with the LPRO technology. It also covers demolition operations, the creation of special foundations, and the construction of ancillary buildings on a general contracting basis.

The LPRO streams concern membrane buildings, associated reactive buildings, a Multiflo decantation (wastewater treatment) facility, and their connection networks and infrastructure. The overhaul of plants power supply includes high-voltage transformer substations, upgrades to existing substations, and the high-voltage connection networks and infrastructure.

The overall design process has been awarded by Veolia to its subsidiary OTV and project management support to Egis Eau. Within the design and build consortium, LELLI Architectes and MVRDV are respectively in charge of architectural services for the facilities in Choisy-le-Roi and in Neuilly-sur-Marne. 

* The combination of low-pressure reverse osmosis membranes (LPRO) and nanofiltration will offer optimal micropollutant filtration, while preserving minerality, to provide perfectly safe water at all times. 100% of the water produced will be treated using the membranes, and no remineralisation will be necessary. The high quality of this water will also allow it to be distributed chlorinefree. (Source: SEDIF)

About Eiffage  Eiffage is one of Europe’s leading construction and concessions companies. The Group’s activities are organised around the following business lines: construction, real estate and urban development, civil engineering, metal, roads, energy and concessions. Thanks to the experience of more than 78,200 employees, Eiffage generated revenue of €21.8 billion in 2023, of which 31 percent was outside France.

About Eiffage Génie Civil

Eiffage Génie Civil actively specialises in all aspects of civil engineering. Its teams are involved in numerous projects in France and other countries, from design through to construction, repair and maintenance, as well as demolition.  

Eiffage media contact

Marguerite Richebé Tel: +33 1 71 59 51 02 marguerite.richebe@eiffage.com

About VINCI Construction

VINCI Construction is one of the world's leading construction companies, providing solutions for transport infrastructure, buildings, networks and urban development. VINCI Construction relies on a network of local business units, speciality networks and specific expertise in major infrastructure projects. VINCI Construction is involved throughout the entire life cycle of a project (design, construction and maintenance). Operating across over 100 countries, VINCI Construction’s 1,300 business units employ almost 120,000 people, who together carried out almost 70,000 projects and generated revenue of €31.5 billion in 2023.

VINCI Construction media contact  Estelle Collier

estelle.collier@vinci-construction.fr