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International Research Journal of Public and Environmental Health
Vol.3 (6),pp. 140-145, June 2016
ISSN 2360-8803
Available online at
Article 16/ID/JPRH042/ 06 pages
Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.

Original Research Article

Physicochemical and bacteriological assessment of some borehole waters in the Federal Capital Territory, Nigeria

Chidnma Lizzy Unamba*1, Emmanuel Chika Nwachukwu2 and  Nennaya Rosemary Isu3

1Department of Biological sciences, Faculty of Science University of Abuja.
2Department of Biology, Faculty of Science, Universiti Putra Malaysia.
3Department of Microbiology, Faculty of Science, University of Abuja.

*Corresponding Author Email:

date Received: April 26, 2016     date Accepted: June 2, 2016     date Published: June 7, 2016


A study on physicochemical and bacteriological assessment of borehole waters in the six Area Councils of Federal Capital Territory (FCT), Nigeria was carried out. The physicochemical results (pH, Conductivity, Calcium, Magnesium, lead, Cadmium, Zinc and Hardness) were carried out. These results were compared with the World Health Organization and National Agency for Food and Drug Administration and Control (NAFDAC). Borehole water sample from Bwari has the highest pH (7.5) while AMAC and Abaji have the lowest pH (6.9) value. The conductivity of the water samples ranged from 102.5 to 112.15 (μs/cm). The amount of calcium ranged from 4.25 to 4.95 (mg/l) while magnesium ranged from 1.0 to 2.7(mg/l). However, Zn2+, Pb2+ and Cd2+ were not detected. The total aerobic count of the borehole waters analysed ranged from 2.45×105 to 3.45×106 of cfu/100ml, total coliform count ranged from 9 to 22.5 MPN/100 ml and a biological oxygen demand (BOD) range of 3.20-5.60mg/l. The bacteriological results of borehole water in the six Area Councils of FCT did not comply with the zero count per 100ml of WHO standard and this poses agreat health risk to consumers. Identifications of isolates were done and the presences of some bacteria were noted. Hence, there is need to enlighten the inhabitants on the treatment of borehole waters before consumption.

Key words: Physicochemical, bacteriological, water and borehole

Unamba et al