Tolka — water body quality
near Drumcondra, Dublin City
Tolka is a river in Dublin City, near Drumcondra, extending 92.8 km.
Official classification
Poor
Assessed 2026
Poor ecological status means the Water Framework Directive assessment found major alteration to this water body’s biological communities, with many of the species expected in an undisturbed water body of its type absent or much reduced.
| Stretch | Status |
|---|---|
| Tolka | Poor |
| Tolka | Poor |
| Tolka | Poor |
| Tolka | Poor |
| Tolka | Moderate |
| Tolka | Poor |
Overall status reflects the worst stretch (precautionary).
This water body
- Type
- River
- Length
- 92.8 km
- County
- Dublin City
- Location
- 53.4145, -6.4037
Others in Dublin City
This page shows water-quality information, not swim-safety advice. For today's conditions and swim-safety guidance, check Water Safety Ireland.