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Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.51 0.2 – 1 0.01 ▲ Total Chlorinemg CL2/l 0.56 No limit 0.11
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 19.8 No limit 19.8 Hardnessmg CaCO3/l 267 80 – 459 267 Hardness fF 26.7 No limit 26.7 pH 7.8 6.5 – 9.5 7.8 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 539 ≤ 2,500 539 TDSmg/l 345estimated 0 – 1,199 345 Alkalinitymg CaCO3/l 282 No limit 282 Bicarbonatemg HCO3/l 342.8Sampled Oct 2025 No limit 342.8
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 5Sampled Apr 2026 ≤ 50 0.25 Fluoridemg F/l 0.1Sampled Apr 2026 ≤ 1.5 0.03 Mercuryμg Hg/l 0.01Sampled Apr 2026 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 7.6 ≤ 50 2.28
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 17.6Sampled Apr 2026 No limit 17.6 Calciummg/l 83.4Sampled Apr 2026 No limit 83.4 Potassiummg/l 0.8Sampled Apr 2026 No limit 0.8 Chloridemg/l 10.6 ≤ 250 10.6
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 1Sampled Apr 2026 ≤ 200 1 Antimonyμg/l 0.1Sampled Apr 2026 ≤ 5 0.1 Arsenicμg/l 0.34Sampled Apr 2026 ≤ 10 0.17 Bariumμg/l 12.4Sampled Apr 2026 ≤ 1,000 12.4 Cadmiumμg/l 0.025Sampled Apr 2026 ≤ 5 0.025 Chromiumμg/l 0.1Sampled Apr 2026 ≤ 50 0.1 Ironμg/l 1Sampled Apr 2026 ≤ 200 1 Manganeseμg/l 1Sampled Apr 2026 ≤ 50 1 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2.9Sampled Apr 2026 ≤ 10 2.9 Sodiummg/l 5.3Sampled Apr 2026 ≤ 200 5.3
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 1.21Sampled Oct 2025 ≤ 100 0.061
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.01Sampled Apr 2026 ≤ 0.4 0.01 Total pesticidesug/L 0.05 ≤ 0.5 0.05
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2026 ≤ 70 0.02 Atrazineug/L 0.02Sampled Apr 2026 ≤ 3 0.02
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Apr 2026 No limit 0.001 PFOSug/L 0.002Sampled Apr 2026 No limit 0.002 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 7.5 No limit 7.5 Uraniumug/L 1.3Sampled Apr 2026 No limit 1.3
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.
