Public contracts of Communauté d'agglomération de la Région Nazairienne et de l'Estuaire (CARENE) · 2026

Conception et réalisation d’une nouvelle station d’épuration de Donges gare

€5.3M

maximum contract amount over 3 years — what was paid on it is not published

Signed on 5 March 2026 · running until about April 2029 · 3 yrs

Ongoing4 Apr 2029

That is at most ~€1.7M a year on average: a maximum too.

Company selected

Sande (Nantaise des Eaux)Construction de réseaux pour fluides · registered office La Chapelle-Sur-Erdre (44240) · headcount 20 to 49 employees · SIREN 839701257

The competition

6 bids received

Median for this procedure in 2026: 3 bids, across 308 comparable contracts. Procedure with negotiation · awarded to 1 company

Open data gives the contract holder and the number of bids. The identity of unsuccessful bidders is not published.

Number 2 by amount of the 116 contracts Communauté d'agglomération de la Région Nazairienne et de l'Estuaire (CARENE) published for 2026.

Contract details (procedure, price, amendments, lots)

Procedure : Procédure avec négociation

Price : Mixte

Published amendments : none

Subcontracting declared : no

Social considerations : Clause sociale

Environmental considerations : Clause environnementale

Contracts above €40,000 excluding VAT, as declared when they are awarded (DECP): contract amounts, not payments. Smaller contracts are not published; obviously wrong amounts are set aside.