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Bathing water quality > DRENNEC (OUEST)
Year :
DRENNEC (OUEST)
"Département" : FINISTERE   /   Town : SIZUN
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Start of the swimming season :   15/06/2025 End of the swimming season :   15/09/2025
Unsupervised site Site with facilities No Pets Site without showers Site without drinking water Site with toilets Site without rescue station
Current year's grading 2025 : Unranked site
Caption:
Excellent
 Site where water quality is excellent
Good
 Site where water quality is good
Sufficient
 Site where water quality is sufficient
Poor
 Site where water quality is poor
Insufficiently sampled
 Site where the number of samples in the assessment period was not satisfied
Unranked site
 Unranked site
Prohibition
 Site with a temporary prohibition
Profil complet du site de baignade:       Synthese
Profile of the bathing site:      Profil
Details of current year's sampling 2025
Mandatory parameters 27/05/2025 16/06/2025 01/07/2025 15/07/2025 28/07/2025 Limit value Good/Average Limit value Average/Poor
Intestinal enterococci (/100mL) <15 <15 15 <15 <15 100 660
Escherichia coli (E.coli) (/100mL) 15 <15 <15 <15 <15 100 1800
Other parameters 27/05/2025 16/06/2025 01/07/2025 15/07/2025 28/07/2025
Coliform bacteria (/100mL)           - -
Mineral oils           - -
Phenols           - -
Surface active agents /Foam           - -
Abnormal colour change           - -
Secchi transparency >1 >1 >1 >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 2025
Mandatory parameters 11/08/2025 25/08/2025 02/09/2025 08/09/2025 Limit value Good/Average Limit value Average/Poor  
Intestinal enterococci (/100mL) <15 <15   15 100 660  
Escherichia coli (E.coli) (/100mL) 46 15   110 100 1800  
Other parameters 11/08/2025 25/08/2025 02/09/2025 08/09/2025
Coliform bacteria (/100mL)         - -  
Mineral oils         - -  
Phenols         - -  
Surface active agents /Foam         - -  
Abnormal colour change         - -  
Secchi transparency >1 0,85 >1 0,90 - -  
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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Results of current year's sampling 2025
27/05/2025
Bon access to details 		16/06/2025
Bon access to details 		01/07/2025
Bon access to details 		15/07/2025
Bon access to details 		28/07/2025
Bon access to details 		11/08/2025
Bon access to details 		25/08/2025
Bon access to details 		02/09/2025
Non renseigné access to details 		08/09/2025
Moyen access to details 		 
 
Good result Good result  -  Average result Average result  -  Poor result Poor result
Grade history
2021 2022 2023 2024
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
Ungraded Not Monitored
       
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
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