Public contracts of Nantes Métropole · 2026

Rénovation du traitement des boues de l’usine de production d’eau potable de la Roche

€4.7M

maximum contract amount over 17 years — what was paid on it is not published

Signed on 19 October 2026 · running until about December 2043 · 17 yrs

Ongoing20 Dec 2043

That is at most ~€275k a year on average: a maximum too.

Company selected

StereauSIREN 602011918

The competition

1 bid received

Median for this procedure in 2026: 3 bids, across 23502 comparable contracts. Simplified procedure · awarded to 1 company

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

Number 6 by amount of the 352 contracts Nantes Métropole published for 2026.

Contract details (procedure, price, amendments, lots)

Procedure : Adapted procedure: the lighter procedure allowed under the EU thresholds

Price : Forfaitaire

Published amendments : 1

Subcontracting declared : no

Social considerations : Clause sociale

Environmental considerations : Critère environnemental, 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.