Located along the Mediterranean coast, between Marseille and Barcelona, the port of Sète is a European, Mediterranean and international exchange hub. The Port of Sète is characterised by its diverse activities; trade, fishing, leisure and passengers.

Today, the port has dry docks that are divided into two zones. – A first zone is reserved for fishing boats and barges and fitted with a stormwater and dry dock water treatment system. – A second zone is reserved for small-scale fishing boats without a treatment system. The Port of Sète is aware of operating in a sensitive environment and this is why it wants to improve the collection and treatment of dry dock activity effluent, and thereby limit its impacts The purpose of this approach is for all discharge to be treated in compliance with the recommendations made by the Loire-Bretagne Water Agency, pilot water basin in terms of dry dock activities.