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Sustainable management of drinking water supply systems in lacustrine areas in Benin: the case of the municipality of So-Ava

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Author Affiliations

  • 1Laboratory of Applied Hydrology, National Water Institute, University of Abomey-Calavi, Benin
  • 2Laboratory of Applied Hydrology, National Water Institute, University of Abomey-Calavi, Benin and Service des Affaires Générales à la Mairie de Sô-Ava, Benin
  • 3Laboratory of Applied Hydrology, National Water Institute, University of Abomey-Calavi, Benin
  • 4Laboratory of Applied Hydrology, National Water Institute, University of Abomey-Calavi, Benin
  • 5Service des Affaires Générales à la Mairie de Sô-Ava, Benin
  • 6Laboratory of Applied Hydrology, National Water Institute, University of Abomey-Calavi, Benin
  • 7Service des Affaires Générales à la Mairie de Sô-Ava, Benin
  • 8Laboratory of Applied Hydrology, National Water Institute, University of Abomey-Calavi, Benin
  • 9Laboratory of Applied Hydrology, National Water Institute, University of Abomey-Calavi, Benin

Res. J. Engineering Sci., Volume 14, Issue (3), Pages 34-47, September,26 (2025)

Abstract

In lacustrine municipalities, surface water is permanently available and abundant, yet its quality is poor. Nevertheless, the population tends to prefer using surface water rather than water intended for Drinking Water Supply (DWS). This raises the issue of abandonment of DWS infrastructure, despite their presence in all districts of the municipality of Sô-Ava. The objective of this research is to contribute to the sustainable management of drinking water supply facilities in lacustrine environments. The study methodology was based on documentary research, field visits, surveys, and direct observation. The findings of this study reveal that the DWS infrastructure in the municipality is quite extensive and includes Village Water Supply Systems (VWSS), Autonomous Water Post (AWP), and Boreholes equipped with Hand Pumps. However, frequent breakdowns are observed in these facilities (non-functional standpipes and taps in 68.64% of VWSS and 41.17% of AWP). This situation explains the low drinking water coverage rate in the municipality, which stands at 28.54%. In addition to breakdowns, four other factors influencing the proper management of these facilities were identified according to respondents: flooding, the reddish coloration of water, the cost of drinking water supply, and the distance between DWS facilities and households. Finally, sustainable management measures for drinking water supply facilities in the municipality were proposed. These sustainable measures address social, economic, and environmental aspects.

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