Is Tap Water Safe to Drink in Burkina Faso?

Ouagadougou draws its water primarily from the Ziga reservoir and the Loumbila dam, treated and distributed by ONEA (Office National de l'Eau et de l'Assainissement). Much of rural Burkina Faso instead depends on hand-pump boreholes and shallow wells installed through development programs, with water quality varying widely by well depth and maintenance.

Urban pipes suffer frequent pressure loss during peak demand, allowing bacterial contamination to enter the network, and coliform bacteria are periodically detected even in Ouagadougou. Some Sahelian groundwater sources carry naturally elevated fluoride and, in isolated pockets, arsenic, which are chronic rather than acute concerns.

Ouagadougou has the country's most developed treatment system, though outages and low pressure remain common, especially during the dry season. Rural regions in the north and Sahel zone rely almost entirely on boreholes, some of which lack recent water quality testing.

Ziga reservoir water supplying Ouagadougou is moderately hard, around 100–200 mg/L, while Sahelian groundwater in the north can exceed 300 mg/L along with elevated fluoride..

Sachet water is widely consumed in Ouagadougou as a perceived safer alternative to direct tap water, while rural residents typically drink untreated borehole or well water out of necessity.

• •Drink only bottled or filtered water throughout Burkina Faso
• •Avoid ice from informal vendors outside major hotels
• •Treat rural borehole water before drinking, even if it looks clean
• •Carry water purification tablets for travel in the Sahel region

• •Choose bottled or sealed sachet water from established vendors
• •Avoid direct tap consumption even in Ouagadougou hotels unless filtered