 The vulnerability to natural disasters threatens the existing water and sanitation systems.Furthermore, there is a heightened probability of contamination of systems following hurricanes due to service interruption as well as the incidence of health-related diseases.The National Water Commission (NWC), which produces more than 90% of Jamaica's total potable water supply, operates a network of more than 160 wells, over 116 river sources (via water treatment plants) and 147 springs.