France – Sewer cleaning services – Prestations d'entretien et de curage des bassins de rétention d'eaux pluviales sur le territoire de la Métropole Rouen Normandie

These services are carried out on behalf of Métropole Rouen Normandie (Contracting Authority), primarily for the Exploitation Assainissement Department, the exploitation basins service for rainwater basins and roadside basins, and potentially for roadside ditches, or exceptionally for river dredging. Orders may occasionally be placed for other services of the Métropole.