The 1989 Camelford Water Pollution Incident was a public health crisis in Camelford, Cornwall, England. A mishap at a water treatment facility led to twenty tonnes of aluminium sulphate contaminating the drinking water supply, affecting 20,000 residents. Immediate health issues, including skin rashes and vomiting, emerged, prompting criticism over the authorities' response and ongoing health impact studies. The incident remains a subject of scrutiny concerning its management and long-term health implications.