It is the aim of this one day event to review our present state of knowledge and discuss:

• The origin of pcp's and the typical concentrations found in sewage influents

• Their fate during the treatment process

• Those factors such as type of treatment process and operating conditions, that affect their concentrations in final effluent

• Their impact on the aquatic life in receiving watercourses

• Potential impacts on human health due to water abstraction

• The overall risks that might arise from discharge of pcps and an assessment of likely concerns