Water safety plan enhancements with improved drinking water quality detection techniques

Research output: Contribution to journalJournal article – Annual report year: 2020Researchpeer-review

  • Author: Gunnarsdottir, Maria J.

    University of Iceland

  • Author: Gardarsson, Sigurdur M.

    University of Iceland

  • Author: Jose Figueras, Maria

    Universidad Rovira i Virgili

  • Author: Puigdomènech, Clàudia

    Cetaqua

  • Author: Juárez, Rubén

    Cetaqua

  • Author: Saucedo, G.

    Aigües de Barcelona

  • Author: Arnedo, M. José

    Aigües de Barcelona

  • Author: Santos, Ricardo Serrão

    University of Lisbon

  • Author: Monteiro, Silvia

    University of Lisbon

  • Author: Avery, Lisa

    The James Hutton Institute

  • Author: Pagaling, E.

    The James Hutton Institute

  • Author: Allan, Richard

    The James Hutton Institute

  • Author: Abel, Claire

    The James Hutton Institute

  • Author: Eglitis, J.

    Water Research Centre

  • Author: Hambsch, B.

    DVGW - Technologiezentrum Wasser

  • Author: Hügler, Michael

    DVGW - Technologiezentrum Wasser

  • Author: Rajkovic, Andreja

    University of Belgrade

  • Author: Smigic, Nada

    University of Belgrade

  • Author: Udovicki, Bozidar

    University of Belgrade

  • Author: Albrechtsen, Hans-Jørgen

    Urban Water Systems, Department of Environmental Engineering, Technical University of Denmark, Denmark

  • Author: López-Avilés, Alma

    University of Surrey

  • Author: Hunter, Paul

    University of East Anglia

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Drinking water quality has been regulated in most European countries for nearly two decades by the drinking water directive 98/83/EC. The directive is now under revision with the goal of meeting stricter demands for safe water for all citizens, as safe water has been recognized as a human right by the United Nations. An important change to the directive is the implementation of a risk-based approach in all regulated water supplies. The European Union Framework Seventh Programme Aquavalens project has developed several new detection technologies for pathogens and indicators and tested them in water supplies in seven European countries. One of the tasks of the project was to evaluate the impact of these new techniques on water safety and on water safety management. Data were collected on risk factors to water safety for five large supplies in Denmark, Germany, Spain and the UK, and for fifteen small water supplies in Scotland, Portugal and Serbia, via a questionnaire aiming to ascertain risk factors and the stage of implementation of Water Safety Plans, and via site-specific surveys known as Sanitary Site Inspection. Samples were collected from the water supplies from all stages of water production to delivery. Pathogens were detected in around 23% of the 470 samples tested. Fecal contamination was high in raw water and even in treated water at the small supplies. Old infrastructure was considered a challenge at all the water supplies. The results showed that some of the technique, if implemented as part of the water safety management, can detect rapidly the most common waterborne pathogens and fecal pollution indicators and therefore have a great early warning potential; can improve water safety for the consumer; can validate whether mitigation methods are working as intended; and can confirm the quality of the water at source and at the tap.

Original languageEnglish
Article number134185
JournalScience of the Total Environment
Volume698
Number of pages11
ISSN0048-9697
DOIs
Publication statusPublished - 2020
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Drinking water safety, Risk factors in water supply, Water safety plan performance

ID: 192966148