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SEPM
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.27 0.2 – 1 0.005 ▲ Total Chlorinemg CL2/l 0.31 No limit 0.062
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 17.6 No limit 17.6 Hardnessmg CaCO3/l 278 80 – 459 278 Hardness fF 27.8 No limit 27.8 pH 8 6.5 – 9.5 8 TurbidityNTU 0.57 ≤ 4 0.057 ColorColor Units 5Sampled Dec 2025 ≤ 15 5 ConductivityμS / cm 587 ≤ 2,500 587 TDSmg/l 375.7estimated 0 – 1,199 375.7 Alkalinitymg CaCO3/l 286 No limit 286
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0 ≤ 0 0 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 Cyanide totalμg CN/l 15Sampled Nov 2025 ≤ 50 0.75 Fluoridemg F/l 0.88Sampled Nov 2025 ≤ 1.5 0.26 Mercuryμg Hg/l 0.056Sampled Nov 2025 ≤ 1 0.006 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 1.1 ≤ 50 0.33
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 31.6Sampled Nov 2025 No limit 31.6 Calciummg/l 55.1Sampled Nov 2025 No limit 55.1 Potassiummg/l 7.2Sampled Nov 2025 No limit 7.2 Chloridemg/l 9 ≤ 250 9
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 14Sampled Nov 2025 ≤ 200 14 Antimonyμg/l 0.5Sampled Dec 2025 ≤ 5 0.5 Arsenicμg/l 1Sampled Nov 2025 ≤ 10 0.5 Bariumμg/l 17Sampled Nov 2025 ≤ 1,000 17 Cadmiumμg/l 0.025Sampled Dec 2025 ≤ 5 0.025 Chromiumμg/l 1Sampled Dec 2025 ≤ 50 1 Copperμg/l 41Sampled Dec 2025 ≤ 2,000 2.05 Ironμg/l 20 ≤ 200 20 Manganeseμg/l 5 ≤ 50 5 Leadμg/l 1Sampled Dec 2025 ≤ 10 0.05 Nickelμg/l 1Sampled Dec 2025 ≤ 20 1 Seleniumμg/l 1Sampled Nov 2025 ≤ 10 1 Sodiummg/l 22.1Sampled Nov 2025 ≤ 200 22.1
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Nov 2025 No limit 0.005 Total Trihalomethanesμg/l 2.87Sampled Nov 2025 ≤ 100 0.14
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Nov 2025 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) Sampled Nov 2025 ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Nov 2025 ≤ 70 0.02 Atrazineug/L 0.005Sampled Nov 2025 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Nov 2025 No limit 0.001 PFOSug/L 0.001Sampled Nov 2025 No limit 0.001 PFNAug/L 0.001Sampled Nov 2025 No limit 0.001 Total PFASug/L 0.029Sampled Nov 2025 ≤ 0.1 0.003 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 0.01 No limit 0.003 Sulfatemg/l 29.6 No limit 29.6
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.
