Indonesia Heading Towards Water Crisis? Between Resource Abundance and Scarcity Threats

Indonesia is grappling with a potential water crisis, a situation the United Nations identifies as stemming not solely from a lack of water, but from deficiencies in governance, distribution, conservation, and utilization management. This framework, known as Integrated Water Resources Management (IWRM), highlights that the core issue for Indonesia lies in ensuring water is managed equitably, efficiently, and sustainably.

Official data indicates an increase in household access to adequate drinking water sources, reaching approximately 92.64 percent in 2024. However, this figure still leaves millions without proper access, revealing vast regional inequalities. For instance, the Papua Pegunungan region lags significantly behind DKI Jakarta in access rates. Furthermore, the World Health Organization and UNICEF's Joint Monitoring Programme reveals that access to truly safely managed drinking water remains far below basic access levels, underscoring persistent challenges in service quality and continuity.

Compounding these issues, climate change is intensifying Indonesia's hydrological challenges. Several regions are experiencing prolonged dry seasons, while rainy seasons are characterized by high-intensity rainfall over short periods. This leads to more water being lost as runoff rather than replenishing groundwater reserves, creating a paradox of floods during the wet season and droughts during the dry season.

The nation's water problems have become multidimensional. Firstly, there is a spatial imbalance in water availability, with densely populated Java having significantly lower per capita water reserves compared to other islands. Urbanization and industrial growth are escalating water demand while environmental carrying capacity diminishes. Secondly, water quality is degrading due to pollution from domestic, industrial, and agricultural waste, increasing treatment costs for potable water. Thirdly, groundwater exploitation is rampant, particularly in urban areas, causing land subsidence, saltwater intrusion in coastal regions, and depleting natural aquifer storage. Finally, climate change is increasing the frequency of hydrological droughts, affecting areas previously considered water-secure.