Physico-Chemical and Microbiological Analysis of Well Water Samples In Settlements around Akperan Orshi College of Agriculture, Yandev

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Author(s) Mwekaven S.S | Aorkwagh M.T | Gundu E.G | Yange T
Pages 641-649
Volume 6
Issue 1
Date January, 2017
Keywords Well Water, Physico- Chemical, Microbiological, Contamination, Pathogens

In this study, fifteen (15) samples of well water was randomly collected from three different locations around Akperan Orshi College of Agriculture Yandev (AOCAY) and assessed for their physico – chemical parameters using standard methods and microbiological quality using serial dilution to obtain total bacteria count and the multiple tube fermentation technique to determine the coliform count using the most probable number (MPN) method. Positive tubes of the presumptive test were further cultured on appropriate solid media and the bacteria present were isolated. The chemical analysis of the samples was carried out using AAS and the results were compared with World Health organization (WHO) and Nigeria Industrial Standard (NIS) standards for drinking water. The result of the study revealed that except for nitrates and suspended solids which were higher than the WHO permissible limits, temperature was within the WHO standard but was above the NIS standards. The results of microbiological analysis of the samples indicates that most of the wells were grossly contaminated with bacteria pathogens especially, Escherichia coli (100%), proteus speice (47%) and salmonella specie (7%). None of the wells tested positive for streptococcus feacalis and klebsiella species. The amount of the bacteria present in the samples exceeded the standard limit of the most probable number (MPN) per 100lm set for untreated drinking without additional treatment such as boiling or disinfection and this could lead to outbreak of water borne diseases. Hence, good and proper environmental and personal hygiene must be maintained specially by the use of these wells to prevent their contamination with bacteria pathogens.

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