Silent Valley Reservoir — water body quality
near Annalong, Newry Mourne and Down
Silent Valley Reservoir is a lake in Newry Mourne and Down, near Annalong, covering 97.2 ha.
Official classification
Good
Assessed 2026
Good ecological status under the Water Framework Directive means the biology and chemistry of this water body depart only slightly from near-natural conditions for its type, which meets the Directive’s environmental objective.
| Stretch | Status |
|---|---|
| Silent Valley Reservoir | Good |
Overall status reflects the worst stretch (precautionary).
This water body
- Type
- Lake
- Area
- 97.2 ha
- County
- Newry Mourne and Down
- Location
- 54.1400, -6.0027
Others in Newry Mourne and Down
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.