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Bathing water quality > LAC D'AYDAT
Year : 2026 LAC D'AYDAT
"Département" : PUY-DE-DOME   /   Town : AYDAT
Start of the swimming season :   20/06/2026 End of the swimming season :   31/08/2026
Supervised site Site with facilities No Pets Site with showers Site with drinking water Site accessible to people with reduced mobility Site with toilets Site with rescue station
Grade history
2022 2023 2024 2025
Classification as per directive 2006/7/EC in force from the 2013 season
 
Excellent Excellent
Good Good
Sufficient Sufficient
Poor Poor
Insufficiently sampled Insufficiently sampled
Unranked site Unranked site
1 1 1 1
From the 2013 bathing season, the classification calculation method is amended in application of European Directive 2006/7/EC More information From the 2013 bathing season, the classification is made on the basis of the results of analyses from the previous 4 seasons of the 2 microbiological parameters Escherichia coli and intestinal enterococci, by comparing the results with the values established under European Directive 2006/7/EC
Results of current year's sampling 2026
08/06/2026
Bon 		22/06/2026
Bon 		01/07/2026
Bon 		20/07/2026
Bon 		04/08/2026
Bon 		18/08/2026
Bon 		 
 
Good result Good result  -  Average result Average result  -  Poor result Poor result
 
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Details of current year's sampling 2026
Mandatory parameters 08/06/2026 22/06/2026 Limit value Good/Average Limit value Average/Poor
Intestinal enterococci (/100mL) <15 30 100 660
Escherichia coli (E.coli) (/100mL) <15 77 100 1800
Other parameters 08/06/2026 22/06/2026
Coliform bacteria (/100mL)     - -
Mineral oils Absence Absence - -
Phenols     - -
Surface active agents /Foam Absence Absence - -
Abnormal colour change     - -
Secchi transparency 1 1 - -
Ostreopsis spp.     - -
From the 2010 bathing season, the mandatory parameters to monitor and assess the quality of bathing waters have been changed. More information By the start of 2010, the Directive 2006/7/EC lays down two mandatory parameters for analysis: intestinal enterococci and Escherichia coli. Other previous parameters issued from the Directive 76/760/EEC, such as total coliforms or chemical parameters, may possibly be taken into account but are optional.
Details of current year's sampling 2026
Mandatory parameters 01/07/2026 20/07/2026 Limit value Good/Average Limit value Average/Poor
Intestinal enterococci (/100mL) 15 15 100 660
Escherichia coli (E.coli) (/100mL) <15 61 100 1800
Other parameters 01/07/2026 20/07/2026
Coliform bacteria (/100mL)     - -
Mineral oils Absence Absence - -
Phenols     - -
Surface active agents /Foam Absence Absence - -
Abnormal colour change     - -
Secchi transparency 0,8 0,9 - -
Ostreopsis spp.     - -
From the 2010 bathing season, the mandatory parameters to monitor and assess the quality of bathing waters have been changed. More information By the start of 2010, the Directive 2006/7/EC lays down two mandatory parameters for analysis: intestinal enterococci and Escherichia coli. Other previous parameters issued from the Directive 76/760/EEC, such as total coliforms or chemical parameters, may possibly be taken into account but are optional.
 
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Details of current year's sampling 2026
Mandatory parameters 04/08/2026 18/08/2026 Limit value Good/Average Limit value Average/Poor
Intestinal enterococci (/100mL) 77 <15 100 660
Escherichia coli (E.coli) (/100mL) 15 30 100 1800
Other parameters 04/08/2026 18/08/2026
Coliform bacteria (/100mL)     - -
Mineral oils Absence Absence - -
Phenols     - -
Surface active agents /Foam Absence Absence - -
Abnormal colour change     - -
Secchi transparency 0,8 1 - -
Ostreopsis spp.     - -
From the 2010 bathing season, the mandatory parameters to monitor and assess the quality of bathing waters have been changed. More information By the start of 2010, the Directive 2006/7/EC lays down two mandatory parameters for analysis: intestinal enterococci and Escherichia coli. Other previous parameters issued from the Directive 76/760/EEC, such as total coliforms or chemical parameters, may possibly be taken into account but are optional.