Barrage de la Gioulé
Landes, FranceView mapDirections
Eau France publishes the water-quality measurements for Barrage de la Gioulé. Here is what has been measured.
- Limited data
Barrage de la Gioulé in Landes, France has official water-quality measurements, shown as reported. Water clarity: 0.5 m visibility. Phosphorus: 80 µg/L. Chlorophyll-a (algae): 19 µg/L.
How Barrage de la Gioulé is classified
Barrage de la Gioulé 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.
Barrage de la Gioulé is a lake in Landes County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2023-09-25. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Barrage de la Gioulé 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 Barrage de la Gioulé
These are the measurements Eau France publishes for Barrage de la Gioulé. More on the source.
Very murky, less than 1.7 ft of visibility. Phosphorus 80 µg/L. Chlorophyll-a 19 µg/L. TSI 66.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.51m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 80µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 19µg/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. | 66 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Barrage de la Gioulé
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Barrage de la Gioulé
Compare lakeside cabins, hotels, and vacation rentals near Barrage de la Gioulé in Landes, 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.
Top-rated places to stay near Barrage de la Gioulé
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Barrage de la Gioulé’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Barrage de la Gioulé
Frequently asked questions about Barrage de la Gioulé
Where is Barrage de la Gioulé?
- Barrage de la Gioulé is a lake in Landes, France. This page reports official water-quality measurements, shown as reported.
What is the water quality of Barrage de la Gioulé?
- Barrage de la Gioulé in Landes, France has official water-quality measurements, shown as reported. Water clarity: 0.5 m visibility. Phosphorus: 80 µg/L. Chlorophyll-a (algae): 19 µg/L.
Is Barrage de la Gioulé safe to swim in?
- Barrage de la Gioulé 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 la Gioulé across LakeQuality
More lakes in France
Where this data comes from
52 measurements from 1 monitoring station, 2016–2023. 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-fr52 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
Q1115213
Authority classifications are shown as the authority published them. See where the data comes from and data sources.