Lac de Lamartine
Lac de Lamartine in Haute-Garonne, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.9 m visibility. Phosphorus: 68 µg/L. Chlorophyll-a (algae): 15 µg/L.
- Clarity
- 0.9 m
Why Lac de Lamartine has no A–F grade
Lac de Lamartine 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 de Lamartine is a lake in Haute-Garonne County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2022-10-03. 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 de Lamartine
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 3 ft of visibility. Phosphorus level: 68 µg/L. Chlorophyll-a: 15 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.93 m | Not graded |
| Phosphorus | 68 µg/L | Not graded |
| Chlorophyll-a (Algae) | 15 µg/L | Not graded |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lac de Lamartine
Compare lakeside cabins, hotels, and vacation rentals near Lac de Lamartine in Haute-Garonne, 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 de Lamartine
Frequently asked questions about Lac de Lamartine
What is the water quality of Lac de Lamartine?
- Lac de Lamartine in Haute-Garonne, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.9 m visibility. Phosphorus: 68 µg/L. Chlorophyll-a (algae): 15 µg/L.
Is Lac de Lamartine safe to swim in?
- Lac de Lamartine 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
35 measurements from 1 monitoring station, 2016–2022. 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-fr35 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
O2005433
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.