River Dart open data
Friends of the Dart publishes the water-quality and sewage monitoring data we collect across the catchment. Explore the pollution map, look up any testing site, follow storm-overflow spills, or break the data down by council area.
Pollution map
An interactive map of bacterial pollution across the catchment — colour-coded river stretches, parish and district choropleths, and every monitored site.
Water quality
Every testing site with its sample history, E. coli trend over time and EA bathing-water reference bands.
Sewage spills
Storm-overflow spill records from Environment Agency EDM returns, including spills in dry weather where they shouldn't happen.
EA monitoring
The Environment Agency's own routine water-quality monitoring — orthophosphate, ammonia, nitrate, dissolved oxygen and pH by sampling point, the chemistry behind the catchment's WFD failures.
Planned improvements
What the water company is legally required to do, and by when — the Environment Agency's WINEP actions for the catchment, with the previous cycle's overdue deadlines.
By council area
Water-quality sites, sewage assets, spills and treatment-works capacity broken down by district and parish.