Lakes in Marne, France
Find lakes in Marne: county page for 6 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 |
|---|---|---|---|---|---|
| Barrage-Réservoir Marne | Marne | — | 1.5 µg/L | 2.8 m | 2024 |
| Etang de Belval | Marne | — | 12 µg/L | 0.7 m | 2024 |
| Etang de la Forêt | Marne | — | 62 µg/L | 0.4 m | 2024 |
| Etang de la Grande Rouillie | Marne | — | 13 µg/L | 0.9 m | 2021 |
| Etang des Landres | Marne | — | 42 µg/L | 0.7 m | 2024 |
| Etang du Grand Coulon | Marne | — | 59 µg/L | 0.5 m | 2021 |
Frequently asked questions
- How many named lakes are in Marne?
- 6 named lakes in Marne, France, have official chlorophyll-a and Secchi, 2021–2024. Values are measurements, not a LakeQuality A–F grade.
- Does LakeQuality grade lakes in Marne?
- No. Marne pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority. A letter on the LakeQuality scale would be an invention.