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
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Named lakes
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Complexe de Mervent | Vendée | 20 µg/L | 8.2 µg/L | 1.6 m | 2025 |
| Complexe du Marillet | Vendée | 25 µg/L | 16 µg/L | 1.4 m | 2025 |
| Retenue D'Apremont | Vendée | 85 µg/L | 27 µg/L | 0.4 m | 2025 |
| Retenue de L'Angle Guignard | Vendée | 15 µg/L | 9.6 µg/L | 1.3 m | 2025 |
| Retenue de la Bultiere | Vendée | 85 µg/L | 12 µg/L | 1.0 m | 2025 |
| Retenue de la Sillonniere | Vendée | 40 µg/L | 11 µg/L | 1.5 m | 2023 |
| Retenue de Rochereau | Vendée | 25 µg/L | 13 µg/L | 1.0 m | 2025 |
| Retenue du Graon | Vendée | 35 µg/L | 18 µg/L | 1.4 m | 2023 |
| Retenue du Jaunay | Vendée | 90 µg/L | 18 µg/L | 0.4 m | 2025 |
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.