The phenomenon of “day zero” underscores the critical importance of water as a fundamental resource, encompassing vital needs such as drinking, sanitation, agriculture, and supporting various industries. However, the combination of escalating water demand and factors like population growth, urbanization, climate change, and inadequate water management has intensified the risk associated with “day zero.” This alarming scenario highlights the imminent threat of water scarcity, where a city’s water supply is on the verge of depletion.