Journal of Applied & Environmental Microbiology
ISSN (Print): 2373-6747 ISSN (Online): 2373-6712 Website: Editor-in-chief: Sankar Narayan Sinha
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Journal of Applied & Environmental Microbiology. 2015, 3(4), 106-111
DOI: 10.12691/jaem-3-4-3
Open AccessArticle

Microbiological Safety Assessment of Groundwater Wells in Bugesera and Muhanga Districts of Rwanda

Wondatir Nigatu1, , Sabrina Gwira Kangeli2, Joseph Nsengimana1 and Antoine Nsabimana3

1Biology Department, University of Rwanda, College of Science and Technology, B.P. 3900, Kigali, Rwanda

2University of Rwanda, College of Science and Technology, B.P. 3900, Kigali, Rwanda

3Faculty of Science, University of Rwanda, College of Science and Technology, B.P. 3900, Kigali, Rwanda

Pub. Date: October 16, 2015

Cite this paper:
Wondatir Nigatu, Sabrina Gwira Kangeli, Joseph Nsengimana and Antoine Nsabimana. Microbiological Safety Assessment of Groundwater Wells in Bugesera and Muhanga Districts of Rwanda. Journal of Applied & Environmental Microbiology. 2015; 3(4):106-111. doi: 10.12691/jaem-3-4-3


This study was conducted with the aim to monitor the suitability of the groundwater wells in Bugesera and Muhanga districts of Rwanda. As the quantity of water supplied by Rwandan Water and Sanitation Corporation ltd (WASAC) is not sufficient for the whole population in these districts, the people depend on groundwater as the main source of water. The microbial quality assessment made by this research on Bugesera district’s groundwater, obtained a number of total coliforms equaling to 132 MPN/100ml during dry season and 399 MPN/100ml during the rainy season with the fecal coliforms estimated to be 125 CFU/ml. In Muhanga district, total coliforms were estimated to be 125 MPN/100ml with the fecal coliforms estimated to be 115 CFU/ml. The microbial analysis results revealed the presence of Klebsiella, Escherichia coli, Shigella, Salmonella, M. morganii and Serratia spp in the groundwater wells of both districts confirming that groundwater wells are contaminated. Therefore, in order for this water to meet the standards of drinking water, it should be boiled or treated with chlorine before consumption and local authorities should be informed about the threats. Community participation and sensitization programs on how to obtain clean and safe water supply from groundwater need to be implemented by responsible stakeholders.

Groundwater wells microbial safety Most Probable Number (MPN) Colony Forming Unit (CFU) Muhanga district Bugesera district

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