Gortnawinney Lake
Not monitored
This spot isn't an officially designated bathing water, so it has no annual classification and no pollution-alert monitoring. Past sample results are shown below, but none is recent. Assess conditions yourself before entering.
Checked against the Environmental Protection Agency (Ireland) · data last changed 7 days ago.
About this spot
narrow gravel access or off jetty
This spot’s record
Gortnawinney Lake is in Monaghan, about 17 km from Monaghan. Across the 12 most recent samples published by the Environmental Protection Agency (Ireland), E. coli counts ranged from 3 to 1,090 per 100 ml. The highest was taken on 15 September 2025. A classification is calculated from percentiles across four seasons, so no single reading decides how this water is rated.
Recent sample results
The last 12 bacterial samples published by the Environmental Protection Agency (Ireland), most recent on the right. Counts are per 100 ml of water.
Dashed line: 1000 E. coli per 100 ml, the Bathing Water Directive guide value for inland waters.
| Date | E. coli | Enterococci | Assessment |
|---|---|---|---|
| 7 Sept | 40 | 20 | Excellent |
| 17 Aug | 20 | 18 | Excellent |
| 13 Jul | 110 | 13 | Excellent |
| 2 Jun | 20 | 8 | Excellent |
| 15 Sept | 1090 | 31 | Poor |
| 26 Aug | 50 | 17 | Excellent |
A bathing water's official classification is calculated from percentiles across four bathing seasons, not from any single sample — so one high reading doesn't mean a spot is unsafe, and one low reading doesn't mean it's clean today.
Facilities & access
- Lifeguard
- No
- Parking
- YesLimited
- Toilets
- No
- Accessible entry
- No
- Dogs
- No
- Public transport
- No
Official water quality
This spot has no official annual classification.
Common questions
- Can you swim at Gortnawinney Lake right now?
- Gortnawinney Lake is currently marked "Not monitored". This spot isn't an officially designated bathing water, so it has no annual classification and no pollution-alert monitoring. Past sample results are shown below, but none is recent. Assess conditions yourself before entering. This reflects the latest data published by the Environmental Protection Agency (Ireland). Conditions change quickly — always assess the water yourself before entering.
- Is there a lifeguard at Gortnawinney Lake?
- No lifeguard cover is listed for Gortnawinney Lake. Never swim alone at an unguarded spot.
- What facilities are there at Gortnawinney Lake?
- Gortnawinney Lake has parking. Dogs are restricted. Facility information is published by the Environmental Protection Agency (Ireland).
Get told when this changes
We’ll email you when the swim status at Gortnawinney Lake moves — a pollution alert opening, or one lifting. Not a newsletter: only this spot, only when it changes, at most once every 12 hours.
Your address is used for these alerts and nothing else, is never shared, and is deleted the moment you unsubscribe — a link is in every email.
Nearby swimming spots
See all swimming spots near Monaghan — about 17 km away.