Lakes in Côtes-d'Armor, France
Find lakes in Côtes-d'Armor: county page for 7 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
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Complexe du Bois Joli | Côtes-d'Armor | 25 µg/L | 7.5 µg/L | 1.2 m | 2023 |
| Etang de Jugon | Côtes-d'Armor | 65 µg/L | 12 µg/L | 1.0 m | 2024 |
| Etang de la Hardouinais | Côtes-d'Armor | 40 µg/L | 14 µg/L | 0.9 m | 2019 |
| Etang du Corong | Côtes-d'Armor | 55 µg/L | 8.5 µg/L | 1.2 m | 2024 |
| Retenue de Kerne Uhel | Côtes-d'Armor | 40 µg/L | 20 µg/L | 1.1 m | 2023 |
| Retenue de Rophemel | Côtes-d'Armor | 30 µg/L | 16 µg/L | 1.2 m | 2022 |
| Retenue du Gouet | Côtes-d'Armor | 20 µg/L | 4.7 µg/L | 2.0 m | 2023 |
Frequently asked questions
- How many named lakes are in Côtes-d'Armor?
- 7 named lakes in Côtes-d'Armor, France, have official phosphorus, chlorophyll-a, and Secchi, 2019–2024. Values are measurements, not a LakeQuality A–F grade.
- Does LakeQuality grade lakes in Côtes-d'Armor?
- No. Côtes-d'Armor pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority. A letter on the LakeQuality scale would be an invention.