Where is Barrage de Garrabet?

Barrage de Garrabet is a lake in Ariège, France. This page reports official water-quality measurements, shown as reported.

Is Barrage de Garrabet safe to swim in?

Barrage de Garrabet 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.

Barrage de Garrabet

Ariège, FranceView map Directions

Eau France publishes the water-quality measurements for Barrage de Garrabet. Here is what has been measured.

Clarity

3.4 m

Clearer than most

Secchi · sampled 2022

Chlorophyll-a

1.8 µg/L

Less algae than most

Measured by Eau France

Limited data

See the measurements Directions Where to stay

Barrage de Garrabet in Ariège, France has official water-quality measurements, shown as reported. Water clarity: 3.4 m visibility. Chlorophyll-a (algae): 1.8 µg/L.

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How Barrage de Garrabet is classified

Barrage de Garrabet 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.

Barrage de Garrabet is a lake in Ariège County, France.

Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2022-10-04. Methodology: how these readings are compared.

What Barrage de Garrabet is good for

From access and monitoring records, not editorial picks.

Clear water11.2 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 Barrage de Garrabet 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 Barrage de Garrabet

These are the measurements Eau France publishes for Barrage de Garrabet. More on the source.

Good clarity, visible to about 11.2 ft. Chlorophyll-a 1.8 µg/L. TSI 39.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	3.4m	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)	1.8µg/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.

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

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Stays near Barrage de Garrabet

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Fishing Barrage de Garrabet

→ Barrage de Garrabet fishing regulations (limits, seasons, special rules)

Frequently asked questions about Barrage de Garrabet

Where is Barrage de Garrabet?: Barrage de Garrabet is a lake in Ariège, France. This page reports official water-quality measurements, shown as reported.
What is the water quality of Barrage de Garrabet?: Barrage de Garrabet in Ariège, France has official water-quality measurements, shown as reported. Water clarity: 3.4 m visibility. Chlorophyll-a (algae): 1.8 µg/L.
Is Barrage de Garrabet safe to swim in?: Barrage de Garrabet 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 Barrage de Garrabet across LakeQuality

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Where this data comes from

32 measurements from 1 monitoring station, 2019–2022. 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-fr32 samples · —

Analytical methods

Hub'Eau / Naïades plans d'eau

Monitoring station identifiers (1)

O12-5003

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