Skip to main content
LakeQuality

Lakes in Vendée, France

Find lakes in Vendée: county page for 9 named lakes in France. Official surface phosphorus, chlorophyll-a, and Secchi — not a swim-safety class and not a LakeQuality letter.

Lake map

Loading map…

Named lakes

LakePlaceTotal phosphorusChlorophyll-aSecchiYear
Complexe de MerventVendée20 µg/L8.2 µg/L1.6 m2025
Complexe du MarilletVendée25 µg/L16 µg/L1.4 m2025
Retenue D'ApremontVendée85 µg/L27 µg/L0.4 m2025
Retenue de L'Angle GuignardVendée15 µg/L9.6 µg/L1.3 m2025
Retenue de la BultiereVendée85 µg/L12 µg/L1.0 m2025
Retenue de la SillonniereVendée40 µg/L11 µg/L1.5 m2023
Retenue de RochereauVendée25 µg/L13 µg/L1.0 m2025
Retenue du GraonVendée35 µg/L18 µg/L1.4 m2023
Retenue du JaunayVendée90 µg/L18 µg/L0.4 m2025

Frequently asked questions

How many named lakes are in Vendée?
9 named lakes in Vendée, France, have official phosphorus, chlorophyll-a, and Secchi, 2023–2025. Values are measurements, not a LakeQuality A–F grade.
Does LakeQuality grade lakes in Vendée?
No. Vendée pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority. A letter on the LakeQuality scale would be an invention.

UNEP GEMS/Water Global Freshwater Quality Archive v3 (OPEN / CC BY 4.0). Surface total phosphorus, chlorophyll-a, and Secchi from 2016 onward. Not a LakeQuality A–F grade.