Composite water quality indices for supply networks

Nikolaos D. Kouvakas, Fotis N. Koumboulis, Maria P. Tzamtzi, Dimitrios G. Fragkoulis, Klimis K. Katsiavrias, Konstantinos Katsiavrias, John Dimitropoulos

This paper presents a comprehensive framework for the assessment and operational monitoring of water quality in water supply networks, as well as representative application based on data from the SCADA system of the water supply system of Lamia, Greece. Compliance requirements, based on European and international regulations and guidelines, are summarized for the most critical water quality indices. Distinction between single-parameter water metrics and composite water quality indices is summarized. Indicative composite quality indices suitable for real time applications to several stations of Lamia’s water supply network are suggested. Real time monitoring of composite quality indices is proposed to be used as a tool for summary quality assessment and as a basis for early event detection and decision support.