Mauritius Water Crisis: What Singapore's Model Can Teach Us

Mauritius is facing a deepening water crisis, and climate change is only part of the problem. Rainfall patterns have become increasingly unpredictable, squeezing the island's reservoirs. But experts and commentators are pointing to a problem that nature alone cannot explain: a significant share of treated water never reaches the taps of consumers, lost instead through ageing and poorly maintained infrastructure.

The Central Water Authority (CWA), the state body responsible for water supply across Mauritius, has long been criticised for high levels of what engineers call "non-revenue water", meaning treated water that is produced and pumped but never billed because it leaks out of the distribution network before reaching homes or businesses. In some parts of the island, these losses are estimated to be substantial, representing both a financial drain and a serious waste of a scarce resource.

At the same time, infrastructure upgrades and new water projects have repeatedly been delayed, raising questions about governance, procurement processes and political will. Population growth, rising hotel and tourism activity, and broader economic development continue to push demand higher, even as supply remains constrained.

The comparison with Singapore is instructive. The city-state, which has no natural rivers or aquifers of any scale, made water security a national priority decades ago. It invested heavily in four main water sources: local catchment water, imported water, reclaimed water known as NEWater, and desalinated water. Singapore's national water agency, PUB, reduced its non-revenue water rate to among the lowest in the world, around five percent, through a combination of smart meters, pipe replacement programmes and rigorous monitoring.

Mauritius, by contrast, still relies heavily on surface water from rivers and reservoirs, with desalination playing a much smaller role despite the island being surrounded by the Indian Ocean. The Mare-aux-Vacoas reservoir in the Plaines Wilhems region remains the largest storage facility, but it has struggled during dry spells in recent years.

What this means for residents and businesses is direct. Water rationing, already a reality in some districts, is likely to become more frequent unless serious structural reforms are made. Tourists and hotel operators, who depend on reliable water supply, also face growing uncertainty. For investors considering Mauritius as a base, water reliability sits alongside electricity and connectivity as a basic infrastructure requirement.

The editorial in the Mauritius Times argues that the lessons from Singapore go beyond engineering. They point to long-term planning, transparent institutions and the political courage to invest in unglamorous but essential infrastructure. Mauritius has the financial tools and the technical knowledge available. What is needed, the argument goes, is the governance to put them to use before the crisis deepens.

The parallel also raises a pointed question for policymakers: if a city-state with no natural water advantage can achieve water self-sufficiency through discipline and investment, what is stopping an island nation with rivers, rainfall and ocean access from doing the same?

Source: Mauritius Times