Locmaria

18.9°C Water temp · Sep 11

France Coastal 1 - Excellent 18.9°C

Satellite image of LOCMARIA — Satellite image © Esri

Locmaria Beach is situated on the island of Groix in Brittany, France. The beach features multiple water discharge outlets across its length, including a permanent central watercourse and seasonal western and eastern flows. The beach experiences tidal variations and is subject to influences from rainfall and sewage treatment plant operations. Water quality monitoring has identified episodic contamination events linked to precipitation and tide coefficients.

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Water

Marine bathing water body adjacent to a sandy beach. The area is influenced by tidal cycles with distinct neap and spring tide periods.

Location

Island of Groix, Commune of Groix, France. The beach is accessible from the west, center, and east.

Water Quality

Water quality classification and monitoring conducted by ARS (Regional Health Authority). Historical data analysis shows concentrations of enterococci and E. coli. Pollution episodes have been documented and analyzed in relation to rainfall, seasonality, and tide coefficients.

Risks

Contamination from three primary sources: the Locmaria wastewater treatment plant (with risk of overflow), a permanent eastern watercourse, and rainwater network discharges. Pollution plumes are modeled to occur under both normal operation and malfunction scenarios, with extent varying according to tide and wind conditions.