Drennec (Est)-Stamadec

France Lake 1 - Excellent

Two bathing water profiles for beaches at Stamadec (Commana) and Drennec (Sizun) located on a lake in Brittany, France. This report revises the profiles with analysis of water quality, cyanobacteria presence, and potential pollution sources affecting the bathing areas.

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Water

The bathing areas are located on a lake with a dam (barrage). The lake has documented macropollutant water quality monitoring.

Location

Stamadec beach is located in Commana (29450); Drennec beach is located in Sizun (29450). Both are situated on the same lake in Brittany, France.

Water Quality

Water quality assessment includes bacteriological analysis and cyanobacteria monitoring. Historical data on cyanobacterial cell densities, biovolumes, and associated toxins have been documented. Potential pollution sources identified include agricultural activities, sanitation systems, stormwater runoff, and natural flows.

Risks

Cyanobacteria and associated toxins present in the water body. Potential bacteriological pollution risks from agricultural activities, sanitation systems, stormwater discharge, and animal sources.