France – Engineering services – Mission Ordonnancement Pilotage et Coordination (OPC) pour les travaux de sécurisation de l'alimentation en eau potable (AEP) de l'Ondaine à Saint-Etienne, La Ricamarie, Le Chambon-Feugerolles et Firminy

The contract includes optional lots defined in the tender specifications. The contract comprises a firm lot for an OPC mission for the water supply security works in Saint-Etienne, La Ricamarie, Le Chambon-Feugerolles and Firminy, which consist of: - Laying a potable water transfer pipeline comprising: - Laying a Ø 500 cast iron pipeline over a length of approximately 5000 ml, between the Solaure plant in Saint-Etienne and the Chambon Feugerolles cemetery. - Laying a Ø 400 cast iron pipeline over a length of approximately 5000 ml, between the Chambon Feugerolles cemetery and the Latour reservoirs and between the cemetery and the Marcoux reservoirs in Firminy - Implementing structures comprising: - Solaure station in Saint-Etienne: pump room - Booster, pipes in valve chambers, manholes and pipe to the Latour production plant - Manholes and pipe to the 4 vents production plant in Firminy - Manhole at the Marcoux reservoir in Firminy - Diversions of gas, electricity, telecom, district heating networks… In optional lot 1, the contract provides for an OPC mission for works on the Marcoux reservoir in Firminy (construction of 2nd tank, valve chamber works), this is a project related to the water supply security (AEP) works of the Ondaine, which may possibly be carried out at the same time as the implementation of the transfer pipeline and require coordination.