Elevated levels of manganese, exceeding safe drinking water standards, have been detected in private wells located near the Semcorp factory in Debrecen, Hungary. The discovery has prompted concerns about potential health risks for local residents who rely on well water. While the exact source of the contamination remains undetermined, environmental organization Greenpeace is demanding a thorough investigation into the issue. Semcorp has not yet publicly commented on the findings. Experts are working to pinpoint the origin of the manganese, considering both natural occurrences and potential industrial contributions. The situation underscores the importance of regular water quality monitoring around industrial facilities to protect public health and the environment. Residents are advised to have their water tested.