ABSTRACT
The problem of safe drinking water is one of the major challenges faced by the human population. With the growth of human population to around seven billion, an estimated 780 million persons (WHO/UNICEF, 2012) do not have access to clean drinking water, while 2.6 billion persons – half the developing world, have no access to water for sanitation purposes. As an increasing number of surface fresh water sources either dry up or are heavily polluted, communities are exploiting the groundwater reserves to meet their water demands. Groundwaters have relatively limited or no harmful microbial content, and are rich in minerals, and, therefore, they are regarded as the safest option for natural fresh water.
