Modules to Water Access in a Changing World addresses topical issues in water supply.The book integrates detailed information on key access indices, quality, economics of demand and supply, socio-economic variables, health and sustainable development in a typical rural environment. The generation of the RTWC model and adoption of the threshold constant (K)for quantification and delineation of surplus,deficit and balance zones; water quality testing for source protection, health and food security contributes valuable data to the world of science. This book will be of utmost interest to policy makers in the water industry, geographers, hydrologists, researchers and environmental practitioners.