ASSESSMENT OF THE QUALITY AND POTABILITY OF GROUNDWATER FROM BOREHOLES IN THE PERIPHERAL AREAS OF NIAMEY

The city of Niamey has experienced rapid population growth and urban expansion in recent years, leading to difficulties in accessing safe drinking water in several urban and peri-urban areas. In response to this situation, part of the population relies on water from boreholes, whose quality remains uncertain. The present study aims to evaluate the physico-chemical potability of water from selected boreholes located in the peripheral districts of Niamey. Eight samples were collected and analyzed using standardized methods, including volumetric and spectrometric techniques, at the laboratory of the Niger Water Exploitation Company (SEEN). The results show that more than 80% of the boreholes have physico-chemical quality that complies with the drinking water standards established by the World Health Organization (WHO). However, two boreholes exhibit exceedances of certain recommended chemical values, which may pose a health risk to consumers.