DOMESTIC WATER DEMAND IN RURAL SEMI-ARID NIGERIA ANTHONY OKON NYONG A Thesis Submitted to the School of Graduate Studies in Partial Fulfilment of the Requirements for the Degree Doctor of Philosophy Mc Master University 6 Copyright by Anthony Okon Nyong, September, 1 998. 1*1 National Library Bibliothèque nationale of Canada du Canada Acquisitions and Acquisitions et Bibliographie Services senhces bibliographiques 395 Wellington Street 395. iue Weiling(0rr OttawaON K1A Oh14 0th- ON K1A W Canada CaMda The author has granted a non- L'auteur a accordé une licence non exclusive licence dowing the exclusive permettant à la National Library of Canada to Bibiiotheque nationale du Canada de reproduce, loan, distribute or seii reproduire, prêter, distribuer ou copies of this thesis in microform, vendre des copies de cette thèse sous paper or electronic formats. la forme de microfiche/film, de reproduction sur papier ou sur format électronique. The author retains ownership of the L'auteur conserve la propriété du copyright in this thesis. Neither the droit d'auteur qui protège cette thèse. thesis nor substantial extracts fiom it Ni la thèse ni des extraits substantiels may be printed or othenvise de celle-ci ne doivent être imprimés reproduced without the author's ou autrement reproduits sans son permission. autorisation. DOMESTIC WATER DEMAND IN RURAL SEMI-ARID NIGERIA DOCTOR OF PHILOSOPHY (1 998) McMASTER UNIVERSITY (Geography Hamilton, Ontario. Canada TITLE: DOMElSTIC WATER DEMAND IN RURAL SEMI-ARID NIGERIA AUTHOR: Anthony Okon Nyong, B.Sc. (University of Calabar) MSc. (Ahmadu Bello University) SUPERVISOR: Dr. P. S. Kanaroglou NUMBER OF PAGES: xiv, 184 ABSTRACT Many rural water projects fail because planners do not understand how local populations relate to, and use domestic water. Although domestic use accounts for about 9% of the consumptive use of water in sub-Saharan Africa, the benefits associated with improved access to it are immense. The snidy investigated domestic water use in the waterdeficient semi-arid Nigeria, using a case study of Katarko. Detailed socio-demographic data known to affect water demand, were compared with aggregate data at the national and regional levels. The high population gowth rate. low economic status of the women and the declining water availability present a good recipe for unsustainable water resource development and use in Katarko. Katarko relies on stream fiow, rainfall, ground water and ponds for its domestic needs, with ground water kingt he only source that can supply pere~iawl ater. Distance was identified as the most important factor in the choice of a water source. A tradeoff exists between using good quaiity water and the effort it takes to obtain it. Using culturally- constructed measures of water qua1i ty ,t he study found that the locals perceive the qualit y of water they use as higher in the rainy, than in the dry season. Cloth filtration is the preferred method of water purification, followed by the addition of anthill soil, while boiling ranks third. Multiple regression models were used to study demand in the dry and rainy seasons, when water is scarce and abundant respectively. The levels of explanation provided by the iii rainy season and dry season models are 5 1.2% and 9 1.1%, respectively. The lower explanatory power of the rainy season mode1 may be an indication of wastefiil use when water is abundant. Overall, the results show that although most of the determinants of water demand in both seasons are subject to soçio-cultural interpretations, one can approach the management of it with economic principles. Incorporating the socio-demographic variables that affect domestic water demand into projections M e r r eveals how changes in the variables affect future demand. Modeling seasonal variations in demand provides a glimpse of how consumers will adapt their demands to increased water supply. Geographical accessibility is a major factor in the underutilization of rural water facilities in Nigeria, because facilities are often not optimal1y sited. This research demonstrates the utility of location-allocation modeling as a decision support tool in siting rural water facilities, where they are accessible to users and yield the highest social welfare retums. The option of either providing new wells that are optimally distributed, or rehabilitating existing wells as requested by the community was examined. The research recornrnended the provision of a new set of optimal wells, in view of the offsetting benefits associated with them. The results of the study contribute conceptually and factually to the understanding of domestic water demand in rural areas of developing countries. ACKNOWLEDGMENTS 1 am deeply gratefid to my supervisor, Dr. P. S. Kanaroglou, for his patience and constructive criticisms throughout the research. It has been pleasant working with him. 1 am also grateful to members of my supewisory cornmittee. Dr. Bill Anderson, Dr. Kao-Lee Liaw. Dr. Susan Eliiott. and Dr. Ming-Ko Woo, who despite their busy schedules, took time to review several drafts of the chapters. I wish to thank CIDA for the fùnding for this research, and the University of Jos for granting me a training leave. Special thanks and appreciation go to my colleagues and fÎiends, too numerous to mention here, who made my stay enjoyable. in particular, 1 wish to acknowledge the support of Chris, Isaac, Daniel, Charles, Wale, Ephraim, Augustine & Rose, Yetunde, Rifkatu, Nom, Nunoo and the DeMorgans. 1 am grateful to my Pastor, Reverend Isaac Acheampong and the members of Al1 Nations Full Gospel Church for their prayerful support. 1 wish to thank the entire staff of geography department, Joan Parker, Medy, Darlene and Jude. I am grateful to the staff of the GIS lab for letting it be my home these past four years. So, Ron, Dean and Ric, Pat, thanks to you dl. My gratitude goes to Dr. Gary Wamer, Ms. Cherryil-AM Jackson, the International Students Advisor, for their suppon. Aria, for those times we spoke and you nudged me on, and expressed your belief in me, thanks a lot. To al1 the members of my family whom 1 love dearly, 1 say "thanks for the sacrifice". Finally, 1 humbl y acknowledge God's grace in leading me this far, and the strength to go through this programme. v TABLE OF CONTENTS .. . ABSTRACT Ill ACKNOWLEDGMENTS iv LIST OF FIGURES xi LIST OF PLATES xii *.. LIST OF TABLES Xlll PREFACE xiv Chapter One: introduction 1 1.1 Bac kground 1 1.2 Objectives 6 1.3 Organization of Thesis 7 Re ferences 9 Chapter Two: Demographic Characteristics of Rural Semi-Arid Nigeria: Implications for Sustainabk Water Resource Developmeat and Use A bst rac t 2.1 Introduction and Background 2.2 Study Area 2.3 Research Method and Data Sources 2.4 Socio-dernographic Charactenstics 2.4.1 Household characteristics 2.4.1 .1 Household size 2.4.1 -2 Sex and age composition 2.4.1.3 Education 2.4.1.4 Income 2.42 Fertility 2.4.3 Mortality 2.4.4 Migration 2.4.4.1 immigration 2.4.4.2 Out-migration 2.5 Population Projections 2.6 Implications for Sustainable Water Use 2.7 Conclusion Acknowledgments Literature Cited Chapter Three: A Suney of Househoid Domestic Water Use Patterns in Rural Semi-Arid Nigeria Abstract 3.1 Introduction and Background 3.2 Study Cornmunity 3.3 Methods of Data Collection vii 3.4 Results and Discussion 3.4.1 Sources of water for domestic uses 3 -4.1.1 Factors that influence the choice of water sources 3 A.2 Household water use 3.4.2.1 Differences in perception of water availability 3.4.2.2 Quantity of water used for domestic activities 3 -4.2.3 Coping strategies 3 A2.4 Water handling practices 3.4.2.5 Perception of water quaiity 3.4.2.6 Sorne health implications 3.4.2.7 Principal water collectors 3.4.2.8 Water vending activities 3.5 Sunmary and Conclusion Acknowiedgrnents Re ferences Chapter Four: Seasonal Variations in Domestic Water Demand in Rural Semi-Arid Nigeria Ab stract 4.1 Introduction 4.2 Study Area and Field Methods 4.2.1 Studyarea viii