Assessment of Physio-chemical and Bacteriological Quality of Water Supply for Domestic Use in Student Hostels in Nigerian University
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American Research Institute for Policy Development
Abstract
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The study examined the consistency in quality of water supply within the student halls of residence in a Nigerian
University. The water samples were collected at four different points along the supply chain for three months
and both physico-chemical and bacteriological tests were conducted on the samples based on World Health
Organization (WHO) and Nigeria Standard for Drinking Water (NSDW) standards concurrently. The results of
the physico-chemical test showed that all the samples were within the WHO and NSDW specified permissible
range except their pH (4.57-6.00). However, the bacteriological results revealed that the Escherichia Coli (E.
coli) of all samples (2, 2, 4 and 28cfu/100ml) were not acceptable. In addition, the fecal coliform results of two
samples (0cfu/100ml) were within WHO and NSDW permissible limit values while other samples (1,2
cfu/100ml) were contaminated by some measure of fecal element. Nevertheless, the results of Total Coliform
samples of two points were 0&3cfu/100ml therefore within the acceptable limit range but, the remaining two
samples points (TNTC) were not acceptable. One of the influences on the result of the bacteriological is the
closeness of the water supply pipes to the sewage pipes. In conclusion, bacteriological standard required by both
WHO and NSDW was not satisfied in the water supply to the halls of residents. Therefore there is urgent need
for the treatment of water supply against the presence of fecal elements to forestall liable diseases for sustainable
health.
Keywords
Q Science (General)