Brussels-Capital Region: The sensitive area to eutrophication is a protected area against the pollution of surface waters caused by waste water. This area matches the Senne river basin. In this area, urban waste water has to be collected and are subject to a stringent treatment before their discharge. It was designated in accordance with the prescriptions of the European Directive 91/271/EEC, by the Regional Decree of 23 March 1994.

Brussels-Capital Region: The sensitive area to eutrophication is a protected area against the pollution of surface waters caused by waste water. This area matches the Senne river basin. In this area, urban waste water has to be collected and are subject to a stringent treatment before their discharge. It was designated in accordance with the prescriptions of the European Directive 91/271/EEC, by the Regional Decree of 23 March 1994.