River Main (Slaght) — water body quality
near Ballymena, Mid and East Antrim
River Main (Slaght) is a river in Mid and East Antrim, near Ballymena, extending 5.5 km.
Official classification
Moderate
Assessed 2026
Moderate is the first Water Framework Directive class that falls short of the Directive’s objective: the biological communities here differ moderately from those expected in a near-natural water body of this type, so a programme of measures applies.
| Stretch | Status |
|---|---|
| River Main (Slaght) | Moderate |
Overall status reflects the worst stretch (precautionary).
This water body
- Type
- River
- Length
- 5.5 km
- County
- Mid and East Antrim
- Location
- 54.8321, -6.3082
Others in Mid and East Antrim
This page shows water-quality information, not swim-safety advice. For today's conditions and swim-safety guidance, check Water Safety Ireland.
Official classifications on this page contain DAERA/NIEA Water Framework Directive classification data © Crown copyright, licensed under Open Government Licence v3.0.