Mare-aux-Vacoas Drops to 38.7%: Tighter Water Cuts Loom

Mauritius is facing a worsening water crisis as Mare-aux-Vacoas, the island's largest and most important reservoir, has fallen to just 38.7% of its capacity — a level that authorities warn could trigger tighter restrictions on water supply. **What is Mare-aux-Vacoas?** Mare-aux-Vacoas is the central reservoir of Mauritius, located in the Plaine Champagne highlands in the south-central part of the island. It is the backbone of the country's drinking water network, supplying a large share of households and businesses across the island. When its levels fall sharply, the entire national water supply comes under pressure. **How serious is 38.7%?** A reservoir at under 40% capacity is a significant warning sign, particularly heading into the drier winter months when rainfall is limited and demand remains high. At this level, the Central Water Authority (CWA) — the government body responsible for water supply in Mauritius — typically reviews rationing schedules and may introduce or extend cuts to piped water supply across different regions. Restrictions usually mean households receive water only during certain hours of the day, or on alternating days, depending on the zone. Some areas that were already experiencing rationing could see their supply cut further, while previously unaffected districts may be brought into a rationing schedule for the first time. **Why is the reservoir so low?** Mauritius relies heavily on rainfall to replenish its reservoirs. Below-average rainfall in recent months, combined with rising consumption, has pushed levels down sharply. Climate variability has made such dry spells more frequent and unpredictable, putting increasing strain on the island's water infrastructure. **What this means for residents** If the CWA moves ahead with a new round of restrictions, households should expect reduced or intermittent water supply — potentially for several hours a day or on a rotational basis by district. Residents are advised to store water where possible, reduce non-essential usage such as garden watering and car washing, and monitor official CWA announcements for schedule changes. Businesses, hotels, and industries that depend on consistent water supply may also face operational challenges if rationing is extended or tightened. **What happens next?** Authorities are closely monitoring reservoir levels. Any further decline without significant rainfall could prompt the CWA to act quickly. The coming weeks will be critical — if Mauritius receives substantial rain, pressure on the system may ease. If the dry spell continues, a new round of water rationing appears increasingly likely. Residents and businesses are urged to use water responsibly and follow any new guidelines issued by the CWA as the situation develops. Source: Le Défi Media