Is Tap Water Safe to Drink in Lesotho?

Lesotho's urban supply is anchored by the Lesotho Highlands Water Project, drawing from the Katse and Mohale Dams on the Senqunyane and Malibamatso Rivers. The Water and Sewerage Company (WASCO) treats and pipes water to Maseru and a handful of towns, while most rural villages depend on springs, hand-dug wells, and the Caledon (Mohokare) River along the South African border.

Aging distribution pipes in Maseru allow intermittent bacterial contamination, especially after heavy summer rains typical of the Drakensberg foothills. In rural highland villages, E. coli and other fecal coliforms from livestock runoff frequently contaminate unprotected springs and streams used for drinking.

Maseru and lowland towns along the Caledon River have the most reliable chlorinated supply, though outages and low pressure are common. In the remote highland districts of Thaba-Tseka and Mokhotlong, most households have no piped water at all and rely on untreated mountain streams year-round.

Lesotho's mountain-sourced water is generally soft, with hardness typically ranging between 20–60 mg/L due to the granite and basalt geology of the highlands..

Many Basotho in rural areas drink directly from mountain streams and springs, while urban residents in Maseru increasingly rely on bottled water or boil tap water before drinking.

• •Drink only bottled or boiled water, particularly outside Maseru
• •Avoid ice in drinks unless you know it was made from purified water
• •Carry a portable filter or purification tablets when trekking in the highlands
• •Check that bottled water seals are intact before purchase

• •Boil water for at least one minute before drinking if bottled water is unavailable
• •Avoid raw vegetables washed in untreated water