Where is Barrage-Réservoir Marne?

Barrage-Réservoir Marne is a lake in Marne, France. This page reports official water-quality measurements, shown as reported.

Is Barrage-Réservoir Marne safe to swim in?

Barrage-Réservoir Marne 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.

Barrage-Réservoir Marne

Marne, FranceView map Directions

Eau France publishes the water-quality measurements for Barrage-Réservoir Marne. Here is what has been measured.

Clarity

2.8 m

Clearer than most

Secchi · sampled 2024

Chlorophyll-a

1.5 µg/L

Less algae than most

Measured by Eau France

Limited data

See the measurements Directions Where to stay

Barrage-Réservoir Marne in Marne, France has official water-quality measurements, shown as reported. Water clarity: 2.8 m visibility. Chlorophyll-a (algae): 1.5 µg/L.

Loading map…

How Barrage-Réservoir Marne is classified

Barrage-Réservoir Marne in France is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity and algae (chlorophyll-a), but not phosphorus.

LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.

Monitoring: the French water agencies, via UNEP GEMS/Water.

Barrage-Réservoir Marne is a lake in Marne County, France.

Source: the French water agencies, via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2024-09-25. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Barrage-Réservoir Marne is safe to swim in today is a call for the French water agencies, via UNEP GEMS/Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Get alerts for Barrage-Réservoir Marne →

Water quality measurements for Barrage-Réservoir Marne

These are the measurements Eau France publishes for Barrage-Réservoir Marne. More on the source.

Moderate clarity, visible to about 9.2 ft. Chlorophyll-a 1.5 µg/L. TSI 40.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.8m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus		No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	1.5µg/L	Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water.
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.	40	Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about Barrage-Réservoir Marne

Answers come straight from the public measurements and survey records on this page.

Stays via Stay22

Stays near Barrage-Réservoir Marne

Compare lakeside cabins, hotels, and vacation rentals near Barrage-Réservoir Marne in Marne, 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 Barrage-Réservoir Marne

Prices for Oct 9–11, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Follow Barrage-Réservoir Marne’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Barrage-Réservoir Marne

→ Barrage-Réservoir Marne fishing regulations (limits, seasons, special rules)

Frequently asked questions about Barrage-Réservoir Marne

Where is Barrage-Réservoir Marne?: Barrage-Réservoir Marne is a lake in Marne, France. This page reports official water-quality measurements, shown as reported.
What is the water quality of Barrage-Réservoir Marne?: Barrage-Réservoir Marne in Marne, France has official water-quality measurements, shown as reported. Water clarity: 2.8 m visibility. Chlorophyll-a (algae): 1.5 µg/L.
Is Barrage-Réservoir Marne safe to swim in?: Barrage-Réservoir Marne 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 Barrage-Réservoir Marne across LakeQuality

Lake Fishing Forecast

Species activity outlook by water temperature and season

More lakes in France

Lakes in France

Official water quality for lakes in France

Lake water quality by country

EU bathing ratings and named-lake measurements

Where this data comes from

23 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-fr23 samples · —

Analytical methods

Hub'Eau / Naïades plans d'eau

Monitoring station identifiers (1)

F1236803

Authority classifications are shown as the authority published them. See where the data comes from and data sources.