L'Etang Rouge
L'Etang Rouge in Moselle, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.4 m visibility. Chlorophyll-a (algae): 4 µg/L.
- Clarity
- 0.4 m
Why L'Etang Rouge has no A–F grade
L'Etang Rouge in France is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity and algae (chlorophyll-a), but not phosphorus.
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the French water agencies, via UNEP GEMS/Water.
L'Etang Rouge is a lake in Moselle County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2017-09-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for L'Etang Rouge
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 1.3 ft of visibility. Chlorophyll-a: 4 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.4 m | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 4 µg/L | Not graded |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near L'Etang Rouge
Compare lakeside cabins, hotels, and vacation rentals near L'Etang Rouge in Moselle, France — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing L'Etang Rouge
Frequently asked questions about L'Etang Rouge
What is the water quality of L'Etang Rouge?
- L'Etang Rouge in Moselle, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.4 m visibility. Chlorophyll-a (algae): 4 µg/L.
Is L'Etang Rouge safe to swim in?
- L'Etang Rouge has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
Explore L'Etang Rouge across LakeGrade
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Where this data comes from
6 measurements from 1 monitoring station, 2017. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-20.
Collected and reported by
- Office français de la biodiversité (Hub'Eau)
hubeau-fr6 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
A9185323
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.