A recent water testing initiative has raised concerns about the safety of drinking water in South African schools, after a significant number of samples were found to contain elevated levels of E. coli.
The findings come from a project conducted by environmental organisation WaterCAN, which tested water sources at 72 schools across various regions. According to the results, nearly one-third of the participating schools recorded contamination levels considered unsafe for human consumption.
Contamination signals broader infrastructure challenges
E. coli is commonly found in the intestines of humans and animals, and while many strains are harmless, its presence in drinking water often indicates faecal contamination. This raises concerns about the possible presence of other harmful pathogens that can lead to waterborne diseases.
Of the 20 samples flagged as unsafe, 12 were taken directly from taps and eight from storage tanks, suggesting that contamination may occur at multiple points within the water supply chain.
WaterCAN has issued urgent notifications to affected schools and local municipalities, calling for immediate intervention. Recommended actions include confirmatory testing, investigation of contamination sources, and the implementation of corrective measures.
The municipalities contacted span several provinces, including the Eastern Cape, Western Cape, Free State, KwaZulu-Natal, and Mpumalanga.
Health risks and calls for urgent intervention
WaterCAN coordinator Nomsa Daele highlighted the potential health risks posed by contaminated water, particularly for children. She stressed that safe drinking water is essential for maintaining the health and well-being of learners and school staff.
The findings also draw attention to previous concerns about water quality management. Some of the municipalities identified in the report were previously flagged in South Africa’s 2023 Blue Drop Report for failing to meet basic drinking water standards.
The initiative forms part of a broader citizen science approach, where schools conduct their own water testing using kits and upload results to the MapMyWater platform. This approach encourages community participation and increases awareness of local environmental issues.
The report coincides with growing discussions around sustainability and environmental responsibility, particularly following Earth Day 2026, which emphasised the importance of collective action in addressing global challenges.
As authorities assess the findings, the results underscore the need for improved water infrastructure, consistent monitoring, and coordinated responses to ensure that school environments remain safe for all learners.
Source: WaterCAN
