For journalists & researchers
Press & data
Headline figures, downloads and methodology — free to cite with a link back to Glanmor.
90
Beaches tracked
604
Storm overflows
13,180
Spills in 2025 (EDM)
300
Spill events (30 days)
About Glanmor
Glanmor is an independent platform that collates Cornwall's water-quality and sewage data — Environment Agency samples and classifications, South West Water storm-overflow monitoring, rainfall and tides — alongside citizen reports. Glanmor collects and collates water-quality and pollution data alongside citizen reports, to make what's happening in Cornwall's waters visible. It does not provide medical advice — if you are unwell, seek medical advice. Community-collected data may be incomplete or unverified.
Downloads
- All beaches with current risk (CSV)
- Storm-overflow spill events (CSV)
- Official bathing-water samples (CSV)
- JSON API for journalists & researchers
Using our figures
- Please attribute “Glanmor” and link to the relevant page.
- Note our methodology and limitations — EDM shows spill duration, not volume.
- For bespoke extracts, embargoed data or interviews, contact us.