Where is Lac D'Aous-Bernatas?

Lac D'Aous-Bernatas is a lake in Gers, France. This page reports official water-quality measurements, shown as reported.

Is Lac D'Aous-Bernatas safe to swim in?

Lac D'Aous-Bernatas 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.

Lac D'Aous-Bernatas

Gers, FranceView map Directions

Eau France publishes the water-quality measurements for Lac D'Aous-Bernatas. Here is what has been measured.

Clarity

3.1 m

Clearer than most

Secchi · sampled 2016

Phosphorus

27 µg/L

Typical for France

Measured by Eau France

Chlorophyll-a

4.1 µg/L

Typical for France

Measured by Eau France

Limited data

See the measurements Directions Where to stay

Lac D'Aous-Bernatas in Gers, France has official water-quality measurements, shown as reported. Water clarity: 3.1 m visibility. Phosphorus: 27 µg/L. Chlorophyll-a (algae): 4.1 µg/L.

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How Lac D'Aous-Bernatas is classified

Lac D'Aous-Bernatas 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 D'Aous-Bernatas is a lake in Gers County, France.

Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2016-09-28. Methodology: how these readings are compared.

What Lac D'Aous-Bernatas is good for

From access and monitoring records, not editorial picks.

Clear water10 ft of visibility

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Lac D'Aous-Bernatas 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.

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Water quality measurements for Lac D'Aous-Bernatas

These are the measurements Eau France publishes for Lac D'Aous-Bernatas. More on the source.

Good clarity, visible to about 10 ft. Phosphorus 27 µg/L. Chlorophyll-a 4.1 µg/L. TSI 47.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	3.05m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	27µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	4.1µg/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.	47	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Lac D'Aous-Bernatas

Answers come straight from the public measurements and survey records on this page.

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Stays near Lac D'Aous-Bernatas

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Fishing Lac D'Aous-Bernatas

→ Lac D'Aous-Bernatas fishing regulations (limits, seasons, special rules)

Frequently asked questions about Lac D'Aous-Bernatas

Where is Lac D'Aous-Bernatas?: Lac D'Aous-Bernatas is a lake in Gers, France. This page reports official water-quality measurements, shown as reported.
What is the water quality of Lac D'Aous-Bernatas?: Lac D'Aous-Bernatas in Gers, France has official water-quality measurements, shown as reported. Water clarity: 3.1 m visibility. Phosphorus: 27 µg/L. Chlorophyll-a (algae): 4.1 µg/L.
Is Lac D'Aous-Bernatas safe to swim in?: Lac D'Aous-Bernatas 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

16 measurements from 1 monitoring station, 2016. 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-fr16 samples · —

Analytical methods

Hub'Eau / Naïades plans d'eau

Monitoring station identifiers (1)

Q0455023

Authority classifications are shown as the authority published them. See where the data comes from and data sources.