the contract relates to works services for the creation of new sewerage connections on the territory of the Public Territorial Establishment Grand Paris Grand Est, hereinafter referred to as "the ept", carried out outside the multiannual investment program (SDA, Marne Propre plan, etc.), for the connection of new real estate projects or for isolated operations to bring existing buildings into conformity for their connections to the sewerage network

work to create new sewerage connections on the territory of the ept Grand Paris Grand Est