An analysis by Friends of the Earth reveals that South West Water has the worst environmental record among English water companies, with the highest sewage discharge levels in Devon, Cornwall, Dorset, and Somerset. The company reported an average of 574,323 hours of sewage spills annually, significantly surpassing its competitors.
In addition to sewage spills, South West Water's designated bathing sites experienced the most pollution incidents, totaling 666 in 2025. The company has committed to improving water quality and reducing spill durations, but calls for government action to address broader water system issues continue to grow.
Watch for South West Water's progress on reducing sewage spills and improving water quality as they aim to meet new standards by 2030. The government's response to calls for a clean water bill and potential nationalization of water companies could reshape the industry.