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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 20.4 No limit 20.4 Hardnessmg CaCO3/l 308 80 – 459 308 Hardness fF 30.8 No limit 30.8 pH 7.6 6.5 – 9.5 7.6 TurbidityNTU 0.38 ≤ 4 0.038 ColorColor Units 5Sampled Nov 2025 ≤ 15 5 ConductivityμS / cm 592 ≤ 2,500 592 TDSmg/l 378.9estimated 0 – 1,199 378.9 Alkalinitymg CaCO3/l 290 No limit 290
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 Oct 2025 ≤ 50 0.75 Fluoridemg F/l 0.11Sampled Oct 2025 ≤ 1.5 0.033 Mercuryμg Hg/l 0.015Sampled Oct 2025 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 6 ≤ 50 1.8
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 2.9Sampled Oct 2025 No limit 2.9 Calciummg/l 113Sampled Oct 2025 No limit 113 Potassiummg/l 0.34Sampled Oct 2025 No limit 0.34 Chloridemg/l 11.9 ≤ 250 11.9
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Oct 2025 ≤ 200 10 Antimonyμg/l 0.5Sampled May 2025 ≤ 5 0.5 Arsenicμg/l 1Sampled Oct 2025 ≤ 10 0.5 Bariumμg/l 17Sampled Oct 2025 ≤ 1,000 17 Cadmiumμg/l 0.025Sampled May 2025 ≤ 5 0.025 Chromiumμg/l 1Sampled May 2025 ≤ 50 1 Copperμg/l 12Sampled May 2025 ≤ 2,000 0.6 Ironμg/l 20Sampled Oct 2025 ≤ 200 20 Manganeseμg/l 5Sampled Oct 2025 ≤ 50 5 Leadμg/l 1Sampled May 2025 ≤ 10 0.05 Nickelμg/l 2.8Sampled May 2025 ≤ 20 2.8 Seleniumμg/l 1Sampled Oct 2025 ≤ 10 1 Sodiummg/l 4.9Sampled Oct 2025 ≤ 200 4.9
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Oct 2025 No limit 0.005 Total Trihalomethanesμg/l 15.4Sampled Oct 2025 ≤ 100 0.77
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Oct 2025 ≤ 0.4 0.005 Total pesticidesug/L 0.016Sampled Oct 2025 ≤ 0.5 0.016
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Oct 2025 ≤ 70 0.02 Atrazineug/L 0.005Sampled Oct 2025 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Oct 2025 No limit 0.001 PFOSug/L 0.001Sampled Oct 2025 No limit 0.001 PFNAug/L 0.001Sampled Oct 2025 No limit 0.001 Total PFASug/L 0.029Sampled Oct 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 11.8 No limit 11.8
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.
