Le Drehen

18.1°C Water temp · Jun 8

France Coastal 1 - Excellent 18.1°C

Satellite image of LE DREHEN — Satellite image © Esri

The Dréhen beach is located on the Ile aux Moines in the Gulf of Morbihan, Brittany. This bathing area is situated in a coastal zone characterized by tidal currents and marine dynamics typical of the Gulf. The beach serves as a bathing site with monitored water quality and documented seasonal use patterns. Macro-algae and phytoplankton growth potential have been assessed for the area. Multiple potential pollution sources affecting the beach's water quality have been identified and characterized.

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Water

Coastal bathing area in the Gulf of Morbihan, a tidal marine environment with significant tidal currents influenced by Atlantic Ocean dynamics and local wind regimes.

Location

Ile aux Moines, Gulf of Morbihan, Brittany. The beach is equipped with facilities including lifeguard stations and parking areas.

Facilities

Lifeguard stations, parking, equipped beach facilities.

Water Quality

Water quality has been monitored from 2011 to 2014. Bacteriological quality assessments have been conducted. The area is classified as zone A for non-burrowing bivalves and zone B for burrowing bivalves under shellfish water regulations. Chlorophyll-a concentrations and toxic phytoplankton abundance have been monitored. Potential pollution sources include collective sewerage systems, stormwater networks, and non-collective sanitation systems.

Risks

Macro-algae and phytoplankton proliferation potential. Potential contamination from sewerage overflows during high tidal events and stormwater discharge during rainfall. Multiple pumping stations and sewerage infrastructure may contribute to episodic contamination.