The inhabitants of the Saint-Brieuc agglomeration do not necessarily have the same manager depending on their municipality. For ten of them, including Saint-Brieuc, the water network is managed directly by Saint-Brieuc Armor Agglomération. For 17 others, Saur is in charge. Finally, for the five remaining municipalities, located in Sud-Goëlo, the manager is Baie d'Armor Eau.
In 2023, the public drinking water service served 78,867 subscribers. This represents 169,647 inhabitants, including seasonal residents. These 78,867 subscribers consumed, on average, 103 m3 of water over the past year. Consumption decreasing since it was 107 m3 in 2022.
But other parts of the agglomeration are experiencing drops in yield. Notably Plaintel (-10.73%) and the territory which includes the municipalities of Lanfains, Le Foeil, Le Leslay, Plaine-Haute, Quintin, Saint-Brandan and Saint-Gildas. Despite everything, the average yield of 85.47%, compared to 80.1% at the national level, “constitutes a good result”, underlines the agglomeration. Last year, 1.3 million m3 were lost. A figure down 11.5% compared to 2022.
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3 A thousand samples
In 2023, 516 samples were taken from the drinking water network of the Briochine metropolitan area to test the microbiological quality of the water. Two tests were found to be non-compliant. That’s a compliance rate of 99.61% compared to 98.4% nationally. Saint-Brieuc Armor Agglomération specifies in the report that “the two microbiological non-conformities observed were caused by chlorination defects”.
566 other samples were taken to test the physicochemical quality of the water. With zero non-compliance, the agglomeration network achieves a compliance rate of 100%, compared to 97.7% at the national level.
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4 Twelve non-compliant wastewater treatment plants
Another report was on the agenda of the urban council: that on collective sanitation. He too was not debated in the assembly. By examining it, however, we see that the problems linked to sanitation, having even led to bans on issuing building permits for certain mayors, are still significant.
Thus, out of the 35 purification works in the territory, twelve are considered non-compliant. And another, that of Plourhan, complies with the requirements but requires increased monitoring. However, “the impact on urbanization restrictions is contained at this stage,” reassures the Agglomeration. While emphasizing that “five stations have benefited from a favorable development thanks to the work undertaken”.
