The ERAGUA project is structured around three main areas of action: validating analytical techniques at laboratory scale for detecting microbiological parameters and emerging contaminants; studying the presence and removal of these parameters in reclaimed water treated using different secondary, tertiary and quaternary processes in real WWTPs; and designing and implementing tecnhological monitoring tools, including a biosensor for protozoa detection, a photonic sensor for EC detection, and a digital platform with geospatial capabilities.