Réservoir de Chaumeçon
Réservoir de Chaumeçon in Nièvre, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.3 m visibility. Chlorophyll-a (algae): 2.5 µg/L.
- Clarity
- 2.3 m
Why Réservoir de Chaumeçon has no A–F grade
Réservoir de Chaumeçon in France 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 water clarity and algae (chlorophyll-a), but not phosphorus.
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 French water agencies, via UNEP GEMS/Water.
Réservoir de Chaumeçon is a lake in Nièvre County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2025-09-26. 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 Réservoir de Chaumeçon
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 7.5 ft. Chlorophyll-a: 2.5 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 m | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 2.5 µg/L | Not graded |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Réservoir de Chaumeçon
Compare lakeside cabins, hotels, and vacation rentals near Réservoir de Chaumeçon in Nièvre, France — 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 Réservoir de Chaumeçon
Frequently asked questions about Réservoir de Chaumeçon
What is the water quality of Réservoir de Chaumeçon?
- Réservoir de Chaumeçon in Nièvre, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.3 m visibility. Chlorophyll-a (algae): 2.5 µg/L.
Is Réservoir de Chaumeçon safe to swim in?
- Réservoir de Chaumeçon 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
24 measurements from 1 monitoring station, 2019–2025. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-20.
Collected and reported by
- Office français de la biodiversité (Hub'Eau)
hubeau-fr24 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
F3115753
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.