Lough Keagh
Lough Keagh in Clare, Ireland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 41 µg/L. Chlorophyll-a (algae): 3.4 µg/L.
Why Lough Keagh has no A–F grade
Lough Keagh in Ireland is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the Environmental Protection Agency of Ireland, via UNEP GEMS/Water, with WFD lake names from EPA Ireland.
Lough Keagh is a lake in Clare County, Ireland.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-10-19. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lough Keagh
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 41 µg/L. Chlorophyll-a: 3.4 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 41 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.4 µg/L | Not graded |
| Trophic State Index (TSI) | 50 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lough Keagh
Compare lakeside cabins, hotels, and vacation rentals near Lough Keagh in Clare, Ireland — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lough Keagh
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Fishing Lough Keagh
Frequently asked questions about Lough Keagh
What is the water quality of Lough Keagh?
- Lough Keagh in Clare, Ireland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 41 µg/L. Chlorophyll-a (algae): 3.4 µg/L.
Is Lough Keagh safe to swim in?
- Lough Keagh has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
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Where this data comes from
10 measurements from 1 monitoring station, 2018–2022. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- European Environment Agency
europeanenvironmentagenc10 samples · —
Analytical methods
- GEMStat OPEN / CC BY 4.0
- EPA Ireland WFD lake waterbodies CC BY 4.0
Monitoring station identifiers (1)
IRL00362
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2022-10-19
Monitoring stations: 1