Clea Lakes
Clea Lakes in Northern Ireland, Northern Ireland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 110 µg/L.
Why Clea Lakes has no A–F grade
Clea Lakes in Northern 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, but not water clarity and algae (chlorophyll-a).
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 Northern Ireland Environment Agency (DAERA).
Clea Lakes is a lake in Northern Ireland County, Northern Ireland.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-11-19. 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 Clea Lakes
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 110 µg/L. Trophic State Index: 72.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 110 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 72 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Clea Lakes
Compare lakeside cabins, hotels, and vacation rentals near Clea Lakes in Northern Ireland, Northern 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.
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Fishing Clea Lakes
Frequently asked questions about Clea Lakes
What is the water quality of Clea Lakes?
- Clea Lakes in Northern Ireland, Northern Ireland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 110 µg/L.
Is Clea Lakes safe to swim in?
- Clea Lakes 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.
Explore Clea Lakes across LakeGrade
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Where this data comes from
102 measurements from 1 monitoring station, 2016–2024. Retrieved from the Northern Ireland Environment Agency (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Department of Agriculture, Environment and Rural Affairs (Northern Ireland)
daera-ni102 samples · 2016–2024
Analytical methods
- DAERA NIEA lake nutrient monitoring
Monitoring station identifiers (1)
11172
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: 2024-11-19
Monitoring stations: 1