← Back to summary See all parameters FERRIERE AU DOYEN · Saint-Agnan-sur-Sarthe
EAUX DE NORMANDIE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.23 0.2 – 1 0.005 ▲ Total Chlorinemg CL2/l 0.26 No limit 0.052
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 14 No limit 14 Hardnessmg CaCO3/l 327 80 – 459 327 Hardness fF 32.7 No limit 32.7 pH 7.5 6.5 – 9.5 7.5 TurbidityNTU 0.32 ≤ 4 0.032 ConductivityμS / cm 642 ≤ 2,500 642 TDSmg/l 410.9estimated 0 – 1,199 410.9 Alkalinitymg CaCO3/l 294 No limit 294
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered eColiUFC/100ml 0 ≤ 0 0 BacteriasNMP/100ml 0 ≤ 0 0 EnterococcusUFC/100ml 0 ≤ 0 0
Chemical parameters Chemical parameters Parameter Unfiltered tap water Allowed range Filtered Mercuryμg Hg/l Not reported ≤ 1 — Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 0.5 ≤ 50 0.15
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Chloridemg/l 17 ≤ 250 17
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Antimonyμg/l 0.5Sampled Aug 2025 ≤ 5 0.5 Arsenicμg/l Not reported ≤ 10 — Cadmiumμg/l 0.025Sampled Aug 2025 ≤ 5 0.025 Chromiumμg/l 1Sampled Aug 2025 ≤ 50 1 Ironμg/l 13.6 ≤ 200 13.6 Manganeseμg/l 1 ≤ 50 1 Leadμg/l Not reported ≤ 10 —
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered Total PFASug/L Not reported ≤ 0.1 — PFAS 4ng/l Not reported No limit — PFAS 21ng/l Not reported No limit —
Other Other Parameter Unfiltered tap water Allowed range Filtered Ammoniamg/l 0.05 No limit 0.015 Sulfatemg/l 28 No limit 28
Data from the French health inspection of drinking water (Ministry of Health, regional health agencies), per distribution unit. Quality ranges are based on WHO guidelines, EU Directive 2020/2184 and the French public health code.
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Data from the French health inspection of drinking water (Ministry of Health, regional health agencies), per distribution unit. Quality ranges are based on WHO guidelines, EU Directive 2020/2184 and the French public health code.
