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SI SEMENE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.11 ● (Near the limit) 0.2 – 1 0.002 ▲ Total Chlorinemg CL2/l 0.15 No limit 0.03
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 18.2 No limit 18.2 Hardnessmg CaCO3/l 96.5 80 – 459 96.5 Hardness fF 9.65 No limit 9.65 pH 7.3 6.5 – 9.5 7.3 TurbidityNTU 0.17 ≤ 4 0.017 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 305 ≤ 2,500 305 TDSmg/l 195.2estimated 0 – 1,199 195.2 Alkalinitymg CaCO3/l 19.7 No limit 19.7
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 Mercuryμg Hg/l Not reported ≤ 1 — Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 3.8 ≤ 50 1.14
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 1.7 No limit 1.7 Calciummg/l 35.8 No limit 35.8 Chloridemg/l 68 ≤ 250 68
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Antimonyμg/l 1Sampled Sept 2025 ≤ 5 1 Arsenicμg/l Not reported ≤ 10 — Cadmiumμg/l 1Sampled Sept 2025 ≤ 5 1 Chromiumμg/l 5Sampled Sept 2025 ≤ 50 5 Ironμg/l 17Sampled Sept 2025 ≤ 200 17 Leadμg/l 3Sampled Sept 2025 ≤ 10 0.15 Nickelμg/l 5Sampled Sept 2025 ≤ 20 5
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 0.01 No limit 0.003 Sulfatemg/l 6.4 No limit 6.4
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.
