Management of storm sewage discharges at coastal locations in Europe

The study gives an overview of the British experience concerning sea outfall management in coastal areas. Consequences of the application of European Directives are observed on British legislation as well as the technical conception of treatment and discharge of urban wastewaters in coastal areas. Eleven British case studies have been analysed, in addition to seven case studies implemented in other European countries. The aims of these projects and technical details are presented, and the consequences for bathing water quality are assessed. The results show a general improvement of the quality of bathing waters following the implementation of the projects. Other European countries, in particular France, will have to carry out investments in order to achieve compliance with European Directive requirements. These countries could benefit from the experience acquired by the UK.