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LakeQuality

Lake map

Map shows 3 lakes with coordinates

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Named lakes

LakePlaceTotal phosphorusChlorophyll-aSecchiYear
Retenue de Saint MichelFinistère—4.5 µg/L1.0 m2025
Retenue du DrennecFinistère10 µg/L4.0 µg/L3.4 m2025
Retenue du Moulin NeufFinistère20 µg/L10 µg/L1.5 m2023

Frequently asked questions

How many named lakes are in Finistère?
3 named lakes in Finistère, France, have official phosphorus, chlorophyll-a, and Secchi, 2023–2025. Values are the authority's measurements, shown as reported.
Where do the Finistère readings come from?
Finistère pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority, with the year each was taken.

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.