L'Office National de l'Assainissement du Sénégal (ONAS) is the National Office of Sanitation of Senegal. It is a commercial and industrial public organization responsible for the management of the sanitation sector in Senegal.
L'Office National de l'Assainissement du Sénégal (ONAS) is the National Office of Sanitation of Senegal. It is a commercial and industrial public organization responsible for the management of the sanitation sector in Senegal.