Hollywood 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
several access points to lake
This spot’s record
Hollywood Lake is in Monaghan, about 7 km from Monaghan. Across the 12 most recent samples published by the Environmental Protection Agency (Ireland), E. coli counts ranged from 10 to 150 per 100 ml. The highest was taken on 16 June 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 | 140 | 24 | Excellent |
| 17 Aug | 20 | 2 | Excellent |
| 13 Jul | 60 | 3 | Excellent |
| 2 Jun | 10 | 5 | Excellent |
| 15 Sept | 110 | 85 | Excellent |
| 26 Aug | 10 | 9 | 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
- Yes80m away
- Toilets
- Yes
- Accessible entry
- No
- Dogs
- No
- Public transport
- No
Official water quality
This spot has no official annual classification.
Common questions
- Can you swim at Hollywood Lake right now?
- Hollywood 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 Hollywood Lake?
- No lifeguard cover is listed for Hollywood Lake. Never swim alone at an unguarded spot.
- What facilities are there at Hollywood Lake?
- Hollywood Lake has toilets, parking. Dogs are restricted. Facility information is published by the Environmental Protection Agency (Ireland).
This spot is also in
Get told when this changes
We’ll email you when the swim status at Hollywood 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.
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Nearby swimming spots
See all swimming spots near Monaghan — about 7 km away.