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Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.18 ● (Near the limit) 0.2 – 1 0.004 ▲ Total Chlorinemg CL2/l 0.19 No limit 0.038
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 20.2 No limit 20.2 Hardnessmg CaCO3/l 259 80 – 459 259 Hardness fF 25.9 No limit 25.9 pH 7.7 6.5 – 9.5 7.7 TurbidityNTU 0.3 ≤ 4 0.03 ConductivityμS / cm 546 ≤ 2,500 546 TDSmg/l 349.4estimated 0 – 1,199 349.4 Alkalinitymg CaCO3/l 185 No limit 185 Bicarbonatemg HCO3/l 240Sampled Jun 2026 No limit 240
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 Cyanide totalμg CN/l 10Sampled Jun 2026 ≤ 50 0.5 Fluoridemg F/l 0.1Sampled Jun 2026 ≤ 1.5 0.03 Mercuryμg Hg/l 0.015Sampled Jun 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 40.4 ● (Near the limit) ≤ 50 12.1
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.74Sampled Jun 2026 No limit 3.74 Calciummg/l 92.9Sampled Jun 2026 No limit 92.9 Potassiummg/l 1.5Sampled Jun 2026 No limit 1.5 Chloridemg/l 28.4 ≤ 250 28.4
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10.1Sampled Jun 2026 ≤ 200 10.1 Antimonyμg/l 0.5Sampled Jun 2026 ≤ 5 0.5 Arsenicμg/l 0.25Sampled Jun 2026 ≤ 10 0.13 Bariumμg/l 18.7Sampled Jun 2026 ≤ 1,000 18.7 Cadmiumμg/l 0.025Sampled Jun 2026 ≤ 5 0.025 Chromiumμg/l 0.57Sampled Jun 2026 ≤ 50 0.57 Ironμg/l 2.6Sampled Jun 2026 ≤ 200 2.6 Manganeseμg/l 0.5Sampled Jun 2026 ≤ 50 0.5 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 0.5Sampled Jun 2026 ≤ 10 0.5 Sodiummg/l 12.1Sampled Jun 2026 ≤ 200 12.1
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.05Sampled Jun 2026 No limit 0.003 Total Trihalomethanesμg/l 8Sampled Jun 2026 ≤ 100 0.4
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 1.18Sampled Jun 2026 ≤ 60 0.059
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Jun 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.46 ● (Near the limit) Sampled Jun 2026 ≤ 0.5 0.46 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Jun 2026 ≤ 70 0.02 Atrazineug/L 0.01Sampled Jun 2026 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Jun 2026 No limit 0.001 PFOSug/L 0.001Sampled Jun 2026 No limit 0.001 PFNAug/L 0.001Sampled Jun 2026 No limit 0.001 Total PFASug/L 0Sampled Jun 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 13.8 No limit 13.8 Uraniumug/L 0.42Sampled Jun 2026 No limit 0.42
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.
