Lac du Ganivet
Lac du Ganivet in Lozère, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.8 m visibility. Phosphorus: 64 µg/L. Chlorophyll-a (algae): 12 µg/L.
- Clarity
- 1.8 m
Why Lac du Ganivet has no A–F grade
Lac du Ganivet 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, phosphorus 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 French water agencies, via UNEP GEMS/Water.
Lac du Ganivet is a lake in Lozère County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2023-09-19. 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 Lac du Ganivet
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 5.7 ft. Phosphorus level: 64 µg/L. Chlorophyll-a: 12 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.75 m | Not graded |
| Phosphorus | 64 µg/L | Not graded |
| Chlorophyll-a (Algae) | 12 µg/L | Not graded |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lac du Ganivet
Compare lakeside cabins, hotels, and vacation rentals near Lac du Ganivet in Lozère, 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 Lac du Ganivet
Frequently asked questions about Lac du Ganivet
What is the water quality of Lac du Ganivet?
- Lac du Ganivet in Lozère, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.8 m visibility. Phosphorus: 64 µg/L. Chlorophyll-a (algae): 12 µg/L.
Is Lac du Ganivet safe to swim in?
- Lac du Ganivet 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 Lac du Ganivet across LakeGrade
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Where this data comes from
29 measurements from 1 monitoring station, 2017–2023. 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-fr29 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
O7115003
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.