Lake bathing water · France
Surchauffant - Lac de Vouglans
Surchauffant - Lac de Vouglans is officially classified Excellent for the 2025 bathing season. Rated Excellent in every one of the last 10 classified seasons.
This is the EEA's own bathing water classification for 2025, not a LakeQuality grade. See the official record
The Bathing Water Directive class comes from four seasons of E. coli and intestinal enterococci sampling. It describes seasons already measured rather than the water today, so check the local notice before you get in.
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Classification history, 2015–2025
The EU Bathing Water Directive classifies each designated bathing water once a year from four seasons of E. coli and intestinal enterococci samples. One season is a snapshot; the run below is the pattern.
| Season | Official classification |
|---|---|
| 2025 | Excellent |
| 2024 | Excellent |
| 2023 | Excellent |
| 2022 | Excellent |
| 2021 | Excellent |
| 2020 | Excellent |
| 2019 | Excellent |
| 2018 | Excellent |
| 2017 | Not classified |
| 2016 | Excellent |
| 2015 | Excellent |
What this rating covers
This is the official classification published by France under the EU Bathing Water Directive (2006/7/EC). It reflects measured bacteriological levels — E. coli and intestinal enterococci — over four bathing seasons. It is not a safety clearance, and it does not cover algal blooms, nutrients, water clarity or hazards such as currents and depth. Conditions change after heavy rain. Always check local signage and the operator’s current notices before entering the water.
Official national bathing water profile for Surchauffant - Lac de Vouglans
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