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Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.16 ● (Near the limit) 0.2 – 1 0.003 ▲ Total Chlorinemg CL2/l 0.16 No limit 0.032
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 12.5 No limit 12.5 Hardnessmg CaCO3/l 270 80 – 459 270 Hardness fF 27 No limit 27 pH 7.6 6.5 – 9.5 7.6 TurbidityNTU 0.41 ≤ 4 0.041 ConductivityμS / cm 537 ≤ 2,500 537 TDSmg/l 343.7estimated 0 – 1,199 343.7 Alkalinitymg CaCO3/l 200 No limit 200
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 31.5 ≤ 50 9.45
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Chloridemg/l 27.8 ≤ 250 27.8
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Antimonyμg/l 0.5Sampled Jun 2025 ≤ 5 0.5 Arsenicμg/l Not reported ≤ 10 — Cadmiumμg/l 0.1Sampled Jun 2025 ≤ 5 0.1 Chromiumμg/l 0.5Sampled Jun 2025 ≤ 50 0.5 Ironμg/l 5Sampled Jun 2025 ≤ 200 5 Leadμg/l Not reported ≤ 10 —
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.002Sampled Mar 2025 No limit 0.002 PFOSug/L 0.001Sampled Mar 2025 No limit 0.001 PFNAug/L 0.001Sampled Mar 2025 No limit 0.001 Total PFASug/L 0Sampled Mar 2025 ≤ 0.1 0 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 18.5 No limit 18.5
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.
