Derg Dl — drinking water supply quality
near Pettigoe, Donegal
Derg Dl is a lake in Donegal, near Pettigoe, covering 8.6 km².
Official classification
Not flagged
Assessed 2026
This public water supply does not appear on the EPA’s Remedial Action List — the register of supplies where an EPA audit has identified deficiencies in treatment or monitoring that need a programme of remedial works.
This drinking water supply
- Type
- Lake
- Area
- 8.6 km²
- County
- Donegal
- Location
- 54.6167, -7.8749
Others in Donegal
This page shows regulatory information about a public water supply, not a live test of the water at your tap. For a boil-water notice or a problem with your own supply, contact your water supplier — Uisce Éireann in the Republic, or NI Water in Northern Ireland.
Official classifications on this page contain EPA drinking-water data, including the Remedial Action List © Environmental Protection Agency, licensed under CC-BY-4.0.