Lakes in Seine-et-Marne, France
Find lakes in Seine-et-Marne: county page for 2 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 |
|---|---|---|---|---|---|
| Base de Loisirs de la Grande-Paroisse | Seine-et-Marne | — | 7.5 µg/L | 1.8 m | 2024 |
| Base de Plein Air Et de Loisirs de Jablines | Seine-et-Marne | — | 1.0 µg/L | 4.6 m | 2025 |
Frequently asked questions
- How many named lakes are in Seine-et-Marne?
- 2 named lakes in Seine-et-Marne, France, have official chlorophyll-a and Secchi, 2024–2025. Values are measurements, not a LakeQuality A–F grade.
- Does LakeQuality grade lakes in Seine-et-Marne?
- No. Seine-et-Marne pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority. A letter on the LakeQuality scale would be an invention.