Welcome to International Network for Natural Sciences | INNSpub

Evaluation of Water Intake Structures for Municipal Water Supply Scheme in Lagos, Nigeria

Research Paper | March 1, 2012

| Download 2

Nubi Afolasade Tosin, Longe Emmanuel, Nubi Olubunmi Ayoola

Key Words: Intakes, Correlation coefficient, Water withdrawal, Pollution

J. Bio. Env. Sci.2( 3), 1-7, March 2012


JBES 2012 [Generate Certificate]


The aim of this study was to evaluate some of the grass root problems that tend to frustrate municipal water supply efforts of the Lagos State Water Corporation. This was achieved by understudying three water withdrawal points, namely Iju, Isashi and Adiyan water intake facilities through physical observation, administration of questionnaires and Pearson’s correlation coefficient analysis of data obtained through questionnaire. The correlation coefficient analysis of the location of intake against water source gave value ranges of 0.530, 0.545 and 0.586 for Iju, Adiyan and Isashi Intakes respectively. The correlation analysis of the hydraulic properties of the intake structure against water quality also revealed value ranges of 0.260, 0.236 and -0.453 respectively while the correlation analysis of intake location and water quality gave value ranges of -0.246, -0.602 and -0.827 respectively. Although, physical observations revealed that good planning, designs and constructions were achieved in all the three facilities, but unwholesome practices as demonstrated by lack of maintenance culture, archaic operational practices and inadequate funding undermined the entire water supply scheme.


Copyright © 2012
By Authors and International Network for
Natural Sciences (INNSPUB)
This article is published under the terms of the Creative
Commons Attribution Liscense 4.0

Evaluation of Water Intake Structures for Municipal Water Supply Scheme in Lagos, Nigeria

Al-layla MA, Ahmad S, Middlebrooks EJ. 1977. Water Supply Engineering Design. Ann Arbor Science Publishers, Michigan, p. 61- 67.

Falkenmark M, Widstrand C. 1992. Population and water resources: A delicate balance. Population Bulletin 47(3), 1-36.

FGN. 2007. Legal Notice on Publication of the 2006 Census Report. Federal Republic of Nigeria official Gazette 4(94), 1-8.

FGN. 2000. Water Supply & Interim Strategy note. Federal Government of Nigeria.

Hinrichsen D, Robey B, Upadhyay UD. 2007. Solutions for a Water-Short World. Population Reports, Series M, No. 14. Baltimore, Johns Hopkins School of Public Health, Population Information Program, December 1997.

Lagos State Government. 2006. Lagos Demography. Accessed 6th February, 2008.

Masschelein WJ. 1992. Unit processes in Drinking Water Treatment. CRC Press.

Microsoft Encarta. 2005. Nigeria: Facts and Figures. Microsoft Inc.

Microsoft  Encarta.  2005.  Africa:  The  People: Demography. Microsoft Inc.

Montgomerry DC, Runger GC. 2003. Applied Statistics and Probability for Engineers. 3rd Edition, John Wiley & Sons, N.Y.

Sprinthall RC. 2002. Basic Statistical Analysis. 7th edition, Pearson Publishers.

UN. 2007. Africa and the Millenium Development Goals. United Nation Department of Public Information. DPI/2458 – June 2007.

UN. 2006. Millennium Development Goal Indicators. United Nation Department of Public Information.

Vermeyen TB. 1999. Glen Canyon Dam Multi-Level Intake Structure Hydraulic Model Study. U.S. Department of the Interior, Bureau of Reclamation. Report no: R-99-02.

Vischer DL, Hager WH. 1998. Dam Hydraulics. pp. 215-232, John Wiley & Sons.