Cleaning and maintenance services for water and sewage systems and storm water in the years 2018 to 2021. For wastewater, the communes concerned are Chambray-lès-Tours, Saint-Avertin, Saint-Pierre- des-Corps, Notre-Dame d'Oe, Mettray, La Membrolle-sur-Choisille, Saint-Cyr-sur-Loire, Fondettes, La Riche. Interventions will also be carried out on intermunicipal collectors. For rainwater, all the municipalities of the Métropole are concerned framework agreement without mini and maxi and an economic operator. The framework agreements are concluded for a period of 1 year from 1.1.2018 to 31.12.2018.
Cleaning and unclogging of networks with on-call, cleaning and pumping of lifting posts.
Cleaning services and unclogging of networks with on-call, cleaning, pumping of lifting posts.
Drainage of networks, cleaning and pumping of lifting posts.
Services for the cleaning and maintenance of the works of the sewage treatment plants of La Riche, Fondettes and Chambray-les-Tours.
Cleaning services for storm water networks and desalination and de-oiling works in all municipalities in the metropolitan area.
Sludge recycling of sewage treatment plant "Epur 'Valleys'.
Supply of products and maintenance equipment for INSA Rouen.