Lac de Commanday
Landes, FranceView mapDirections
Eau France publishes the water-quality measurements for Lac de Commanday. Here is what has been measured.
- Limited data
Lac de Commanday in Landes, France has official water-quality measurements, shown as reported. Water clarity: 5 m visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 0.6 µg/L.
How Lac de Commanday is classified
Lac de Commanday 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, phosphorus and algae (chlorophyll-a).
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 Commanday is a lake in Landes County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2020-09-30. Methodology: how these readings are compared.
What Lac de Commanday is good for
From access and monitoring records, not editorial picks.
- Clear water16.3 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 Commanday 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 Commanday
These are the measurements Eau France publishes for Lac de Commanday. More on the source.
Crystal clear, you can see 16.3 ft down. Phosphorus 10 µg/L. Chlorophyll-a 0.6 µg/L. TSI 33.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.96m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 10µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 0.6µg/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. | 33 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Lac de Commanday
Answers come straight from the public measurements and survey records on this page.
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Fishing Lac de Commanday
Frequently asked questions about Lac de Commanday
Where is Lac de Commanday?
- Lac de Commanday is a lake in Landes, France. This page reports official water-quality measurements, shown as reported.
What is the water quality of Lac de Commanday?
- Lac de Commanday in Landes, France has official water-quality measurements, shown as reported. Water clarity: 5 m visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 0.6 µg/L.
Is Lac de Commanday safe to swim in?
- Lac de Commanday 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
42 measurements from 1 monitoring station, 2017–2020. 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-fr42 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
Q2615013
Authority classifications are shown as the authority published them. See where the data comes from and data sources.