Delvin — water body quality
near Naul, Fingal
Delvin is a river in Fingal, near Naul, extending 79.4 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 |
|---|---|
| Delvin | Poor |
| Delvin | Poor |
| Delvin | Poor |
| Delvin | Moderate |
Overall status reflects the worst stretch (precautionary).
This water body
- Type
- River
- Length
- 79.4 km
- County
- Fingal
- Location
- 53.6040, -6.2963
Others in Fingal
This page shows water-quality information, not swim-safety advice. For today's conditions and swim-safety guidance, check Water Safety Ireland.