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Abstract:Drinking water is very indispensable substances to the human beings. We humans need safe water for our health. Therefore, the water we drink should be free from pathogenic bacteria and any pollution. In nature there are two major sources of water are there which is used for drinking water: These sources are ground water and surface water sources. This study was aimed to assess the bacteriological load of these two water sources; In case of Abaya campus (surface water sample) and Main campus (ground water sample) of Arba Minch University. The purposive sampling technique was used to collect samples of drinking water from Abaya campus and Main campus; surface water and ground water samples collected respectively, and transported to laboratory to assess the bacterial load of sampled waters by using standard procedures including colony counting of total and fecal coli forms with the help of nutrient agar and differential media; MacConkey agar respectively. The result revealed that average CFU/ml of bacteria counted on MacConkey agar were 7.6×104from surface water samples and 4.3×104 from ground water samples on morning and 3.5×104from surface water samples and 1.5× 104 from ground water samples on afternoon  respectively. In the same way the total average of CFU/ml of bacteria counted on nutrient agar were 2.93×105from surface water samples and 1.73×105 from ground water samples on morning and 7.3×104 from surface water samples and 4.6×104 from ground water samples on afternoon respectively. From this study we concluded that the drinking water is highly loaded by total coliforms. So, in order to reduce this bacterium and increase safety drinking water supplies: it is necessary to first assess the potential hazards in drinking water sources and storage materials.

Keywords:bacterial load, Ground water, surface water, colony count, water.
Title:Bacteriological Quality Assessment of Ground and Surface Water in Arba Minch University, South Ethiopia
Author:Diriba Leta Weleni
ISSN 2349-7823
International Journal of Recent Research in Life Sciences (IJRRLS)
Paper Publications