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Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.21 0.2 – 1 0.004 ▲ Total Chlorinemg CL2/l 0.24 No limit 0.048
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 26.1 No limit 26.1 Hardnessmg CaCO3/l 264 80 – 459 264 Hardness fF 26.4 No limit 26.4 pH 8 6.5 – 9.5 8 TurbidityNTU 0.31 ≤ 4 0.031 ConductivityμS / cm 559 ≤ 2,500 559 TDSmg/l 357.8estimated 0 – 1,199 357.8 Alkalinitymg CaCO3/l 198 No limit 198 Bicarbonatemg HCO3/l 261Sampled Apr 2026 No limit 261
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 10Sampled Apr 2026 ≤ 50 0.5 Fluoridemg F/l 0.1Sampled Apr 2026 ≤ 1.5 0.03 Mercuryμg Hg/l 0.015Sampled Apr 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 29.3 ≤ 50 8.79
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.85Sampled Apr 2026 No limit 3.85 Calciummg/l 99.8Sampled Apr 2026 No limit 99.8 Potassiummg/l 1.7Sampled Apr 2026 No limit 1.7 Chloridemg/l 27.2 ≤ 250 27.2
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 4Sampled Apr 2026 ≤ 200 4 Antimonyμg/l 0.5Sampled Apr 2026 ≤ 5 0.5 Arsenicμg/l 0.25Sampled Apr 2026 ≤ 10 0.13 Bariumμg/l 16.8Sampled Apr 2026 ≤ 1,000 16.8 Cadmiumμg/l 0.025Sampled Apr 2026 ≤ 5 0.025 Chromiumμg/l 0.5Sampled Apr 2026 ≤ 50 0.5 Ironμg/l 3.7Sampled Apr 2026 ≤ 200 3.7 Manganeseμg/l 0.5Sampled Apr 2026 ≤ 50 0.5 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 0.5Sampled Apr 2026 ≤ 10 0.5 Sodiummg/l 11.2Sampled Apr 2026 ≤ 200 11.2
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.05Sampled Apr 2026 No limit 0.003 Total Trihalomethanesμg/l 11Sampled Apr 2026 ≤ 100 0.55
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 1.8Sampled Apr 2026 ≤ 60 0.09
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Apr 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.2Sampled Apr 2026 ≤ 0.5 0.2
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2026 ≤ 70 0.02 Atrazineug/L 0.01Sampled Apr 2026 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Apr 2026 No limit 0.001 PFOSug/L 0.001Sampled Apr 2026 No limit 0.001 PFNAug/L 0.001Sampled Apr 2026 No limit 0.001 Total PFASug/L 0Sampled Apr 2026 ≤ 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 12.6 No limit 12.6 Uraniumug/L 0.34Sampled Apr 2026 No limit 0.34
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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Independent information about tap water quality in France.
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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.
