Sara Marks

Dr. Sara Marks

Water Supply and Treatment Group

Department Sanitation, Water and Solid Waste for Development

About Me

Research Areas


  • EPF Lausanne, Department of Environmental Engineering. Course: "Sanitary engineering in developing countries "
  • ETH Zürich, Department of Civil and Environmental Engineering. Course: "Water supply, sanitation and waste infrastructure and services in developing countries."
  • Coursera MOOC on Household Water Treatment and Safe Storage (part of the Sandec MOOC Series “Sanitation, Water and Solid Waste for Development”

Professional Activities

  • Aguasan Steering Committee Member
  • Sanitation and Water for All (SWA), Research & Learning Constituency member
  • Rural Water Supply Forum (RWSN), active member

Cover photo: Ariane Schertenleib

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The aim of PACT is, to identify behaviour change techniques on how to increase the psychological ownership over safe-drinking-water-collection infrastructure and to increase the long-term use by strengthening people’s habits.
With Helvetas-Nepal, this project aims to establish a drinking water security strategy in rural communities
A multi-stakeholder projects that aims to identify sustainable service models for small towns in Uganda.

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Narayan, A. S.; Marks, S. J.; Meierhofer, R.; Strande, L.; Tilley, E.; Zurbrügg, C.; Lüthi, C. (2021) Advancements in and integration of water, sanitation, and solid waste for low- and middle-income countries, Annual Review of Environment and Resources, doi:10.1146/annurev-environ-030620-042304, Institutional Repository
Ambuehl, B.; Tomberge, V. M. J.; Kunwar, B. M.; Schertenleib, A.; Marks, S. J.; Inauen, J. (2021) The role of psychological ownership in safe water management: a mixed-methods study in Nepal, Water, 13(5), 589 (18 pp.), doi:10.3390/w13050589, Institutional Repository
Nadimpalli, M. L.; Marks, S. J.; Montealegre, M. C.; Gilman, R. H.; Pajuelo, M. J.; Saito, M.; Tsukayama, P.; Njenga, S. M.; Kiiru, J.; Swarthout, J.; Islam, M. A.; Julian, T. R.; Pickering, A. J. (2020) Urban informal settlements as hotspots of antimicrobial resistance and the need to curb environmental transmission, Nature Microbiology, 5(6), 787-795, doi:10.1038/s41564-020-0722-0, Institutional Repository
Daniel, D.; Gaicugi, J.; King, R.; Marks, S. J.; Ferrero, G. (2020) Combining sanitary inspection and water quality data in western Uganda: lessons learned from a field trial of original and revised sanitary inspection forms, Resources, 9(12), 1-19, doi:10.3390/resources9120150, Institutional Repository
Marks, S. J.; Clair-Caliot, G.; Taing, L.; Bamwenda, J. T.; Kanyesigye, C.; Ernest Rwendeire, N.; Kemerink-Seyoum, J. S.; Kansiime, F.; Batega, D. W.; Ferrero, G. (2020) Water supply and sanitation services in small towns in rural-urban transition zones: the case of Bushenyi-Ishaka Municipality, Uganda, npj Clean Water, 3, 21 (9 pp.), doi:10.1038/s41545-020-0068-4, Institutional Repository
Kanyesigye, C.; Marks, S. J.; Nakanjako, J.; Kansiime, F.; Ferrero, G. (2019) Status of water safety plan development and implementation in Uganda, International Journal of Environmental Research and Public Health, 16(21), 4096 (17 pp.), doi:10.3390/ijerph16214096, Institutional Repository
Genter, F.; Marks, S. J.; Clair-Caliot, G.; Mugume, D. S.; Johnston, R. B.; Bain, R. E. S.; Julian, T. R. (2019) Evaluation of the novel substrate RUG for the detection ofEscherichia coli in water from temperate (Zurich, Switzerland) and tropical (Bushenyi, Uganda) field sites, Environmental Science: Water Research and Technology, doi:10.1039/C9EW00138G, Institutional Repository
Manjaya, D.; Tilley, E.; Marks, S. (2019) Informally vended sachet water: handling practices and microbial water quality, Water, 11(4), 800 (11 pp.), doi:10.3390/w11040800, Institutional Repository
Schertenleib, A.; Sigrist, J.; Friedrich, M. N. D.; Ebi, C.; Hammes, F.; Marks, S. J. (2019) Construction of a low-cost mobile incubator for field and laboratory use, Journal of Visualized Experiments, e58443 (17 pp.), doi:10.3791/58443, Institutional Repository
Contzen, N.; Marks, S. J. (2018) Increasing the regular use of safe water kiosk through collective psychological ownership: a mediation analysis, Journal of Environmental Psychology, 57, 45-52, doi:10.1016/j.jenvp.2018.06.008, Institutional Repository

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Phone: +41 58 765 5631
Fax: +41 58 765 5802
Address: Eawag
Überlandstrasse 133
8600 Dübendorf
Office: FC F27

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Expert of

sustainable water management, technology concepts, transdisciplinary research, water treatment, water supply

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Research Group

Water Supply & Treatment in Sandec

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Research Focus

• Risk assessment and risk managment

• Field-robust water testing methods

• Water infrastructure sustainability

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