Devon community builds real-time sewage spill tracker

Water company accountability has a new name in Devon: a community-built tracking platform.

Citizen environmentalists along the River Dart have created an online system that flags sewage spills in real time, identifies chronically polluted sections, and maps where water utilities plan upgrades – and critically, where they don't.

This matters because it exposes a structural gap: corporate water companies report sewage overflows to regulators, but that data often stays opaque to the communities actually living with the consequences. A platform that makes spill patterns visible to residents, journalists, and local officials shifts the balance.

The tool is not a regulatory substitute. UK water companies are legally required to report Combined Sewer Overflows (CSOs) to Ofwat and the Environment Agency. But transparency doesn't equal action. When a specific stretch of riverbank floods with sewage repeatedly, residents need to know: why, when it will stop, and what the company is doing about it.

This is supply-chain accountability by another name. Water utilities are infrastructure operators embedded in every community they serve. Their failure to invest in treatment capacity, their reliance on Victorian-era systems designed to overflow during rain, and their opacity about where and how often it happens – these are material risks to public health and environmental integrity.

The platform also serves as a data aggregator. It forces pattern recognition that companies and regulators might otherwise ignore or delay acting on.

The real test: does this community tool pressure the water company into faster investment, tighter reporting, or changed behaviour? Or does it simply give residents a louder voice in a system designed to ignore them?

‘It’s shocking really’: Devon community tracks River Dart sewage spills

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