Saint Colomban

18.9°C Water temp · Sep 11

France Coastal 1 - Excellent 18.9°C

Satellite image of SAINT COLOMBAN — Satellite image © Esri

Carnac is a commune located in Morbihan at the head of Quiberon Bay. The coastline is characterized by an alternation of rocky headlands and fine sandy beaches. The town has multiple bathing zones and recreational foot-fishing areas that require comprehensive vulnerability profiling due to documented contamination episodes over the previous decade.

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Water

Coastal water at the head of Quiberon Bay with alternating rocky headlands and fine sandy beaches. The area includes multiple bathing zones and recreational foot-fishing zones.

Location

Carnac is situated in Morbihan, Brittany, at the bottom of Quiberon Bay. The commune is bordered to the north by Ploumel and Erdeven, to the west by Ploemeur, to the east by Trinité-sur-Mer and Crach, and to the south by the Atlantic Ocean.

Water Quality

A Type 3 vulnerability profile was required for all usage zones due to documented contamination episodes over ten years and complex pollution sources. Water quality monitoring is based on two bacteriological parameters: intestinal enterococci and Escherichia coli.

Risks

Documented contamination episodes observed over ten years in all bathing and foot-fishing zones. Pollution sources are complex or partially unknown. Potential pollution sources include collective sanitation systems, non-collective sanitation, diffuse pollution, and accidental discharges.