Professor Dr Catherine Gonzalez, Director of Research Industrial Environment Laboratory (LGEI), Ecole des Mines d'Alès, France Since 1985, Catherine Gonzalez has focused her research on the development of analytical methods for the identification and quantification of Hazardous Priority Substances in waste. She has 20 years of experience in training courses on analytical chemistry and validation methods for graduate students, and has published international reviews (Analytica Chimica Acta, Water Research, Inter. J. Environ. Anal. Chem, Talanta, Chemosphere). Since January 2004, she has coordinated the SWIFT-WFD project dealing with the development and the validation of screening methods in order to support the WFD implementation. Dr?Richard Greenwood, Head of Biological Sciences, University of Portsmouth, UK Research Interests include: Application of mathematical modelling and multivariate analysis to environmental and toxicological data; Environmental toxicology; effects of organic pollutants on marine organisms; Development of passive sampling systems for organic and inorganic pollutants in aquatic environments. Professor Dr Philippe Quevauviller, Policy Officer, EC Brussels Philippe Quevauviller has published more than 200 papers and several books linked to environmental quality measurements. He joined the Research General-Directorate of the European Commission in 1989 where he was scientific officer on topics dealing with the quality control of environmental analysis. Since 2002, he has integrated the Water & Marine Unit of the EC Environment Directorate-General where is now responsible for the development of a new Groundwater Directive which will complement the existing water policy framework (in particular the WFD). He is part-time professor at the K.U.Leuven where he teaches "water quality and treatment" in an Interuniversity programme on Water Resources.