Lac du Moutchic
Lac du Moutchic in Gironde, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3 m visibility. Phosphorus: 19 µg/L. Chlorophyll-a (algae): 3.4 µg/L.
- Clarity
- 3 m
Why Lac du Moutchic has no A–F grade
Lac du Moutchic 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, phosphorus and algae (chlorophyll-a).
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.
Lac du Moutchic is a lake in Gironde County, France.
Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2024-09-23. Grade methodology: LakeGrade methodology.
Watch Lac du Moutchic water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lac du Moutchic
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 9.7 ft. Phosphorus level: 19 µg/L. Chlorophyll-a: 3.4 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.95 m | Not graded |
| Phosphorus | 19 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.4 µg/L | Not graded |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lac du Moutchic
Compare lakeside cabins, hotels, and vacation rentals near Lac du Moutchic in Gironde, 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.
Top-rated places to stay near Lac du Moutchic
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Lac du Moutchic
Frequently asked questions about Lac du Moutchic
What is the water quality of Lac du Moutchic?
- Lac du Moutchic in Gironde, France has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3 m visibility. Phosphorus: 19 µg/L. Chlorophyll-a (algae): 3.4 µg/L.
Is Lac du Moutchic safe to swim in?
- Lac du Moutchic 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 Lac du Moutchic across LakeGrade
More lakes in France
Where this data comes from
48 measurements from 1 monitoring station, 2018–2024. 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-fr48 samples · —
Analytical methods
- Hub'Eau / Naïades plans d'eau
Monitoring station identifiers (1)
----1543
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.