Lac de Laouzas
Tarn, FranceView mapDirections
Eau France publishes the water-quality measurements for Lac de Laouzas. Here is what has been measured.
- Limited data
Lac de Laouzas in Tarn, France has official water-quality measurements, shown as reported. Water clarity: 4 m visibility. Chlorophyll-a (algae): 2 µg/L.
How Lac de Laouzas is classified
Lac de Laouzas in France is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity and algae (chlorophyll-a), but not phosphorus.
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the French water agencies, via UNEP GEMS/Water.
Lac de Laouzas is a lake in Tarn County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2023-10-11. Methodology: how these readings are compared.
What Lac de Laouzas is good for
From access and monitoring records, not editorial picks.
- Clear water13.2 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lac de Laouzas is safe to swim in today is a call for the French water agencies, via UNEP GEMS/Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lac de Laouzas
These are the measurements Eau France publishes for Lac de Laouzas. More on the source.
Good clarity, visible to about 13.2 ft. Chlorophyll-a 2 µg/L. TSI 39.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.03m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 2µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 39 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Lac de Laouzas
Answers come straight from the public measurements and survey records on this page.
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Fishing Lac de Laouzas
Frequently asked questions about Lac de Laouzas
Where is Lac de Laouzas?
- Lac de Laouzas is a lake in Tarn, France. This page reports official water-quality measurements, shown as reported.
What is the water quality of Lac de Laouzas?
- Lac de Laouzas in Tarn, France has official water-quality measurements, shown as reported. Water clarity: 4 m visibility. Chlorophyll-a (algae): 2 µg/L.
Is Lac de Laouzas safe to swim in?
- Lac de Laouzas 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
48 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-fr48 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
O40-4003
Authority classifications are shown as the authority published them. See where the data comes from and data sources.