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SIEVAM
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.38Sampled Feb 2026 0.2 – 1 0.008 ▲ Total Chlorinemg CL2/l 0.45Sampled Feb 2026 No limit 0.09
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 11.3 No limit 11.3 Hardnessmg CaCO3/l 366.8Sampled Feb 2026 80 – 459 366.8 Hardness fF 36.7Sampled Feb 2026 No limit 36.7 pH 7.6Sampled Feb 2026 6.5 – 9.5 7.6 TurbidityNTU 0.1Sampled Feb 2026 ≤ 4 0.01 ConductivityμS / cm 714Sampled Feb 2026 ≤ 2,500 714 TDSmg/l 457Sampled Feb 2026 estimated 0 – 1,199 457 Alkalinitymg CaCO3/l 282.5Sampled Feb 2026 No limit 282.5 Bicarbonatemg HCO3/l 345Sampled Apr 2025 No limit 345
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0Sampled Feb 2026 ≤ 0 0 eColiUFC/100ml 0Sampled Feb 2026 ≤ 0 0 BacteriasNMP/100ml 0Sampled Feb 2026 ≤ 0 0 EnterococcusUFC/100ml 0Sampled Feb 2026 ≤ 0 0
Chemical parameters Chemical parameters Parameter Unfiltered tap water Allowed range Filtered Cyanide totalμg CN/l 10Sampled Apr 2025 ≤ 50 0.5 Fluoridemg F/l 0.25Sampled Apr 2025 ≤ 1.5 0.075 Mercuryμg Hg/l 0.01Sampled Apr 2025 ≤ 1 0.001 Nitritesmg NO2/l 0.01Sampled Feb 2026 ≤ 0.5 0.004 Nitratesmg NO3/l 23Sampled Feb 2026 ≤ 50 6.9
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 23.3Sampled Apr 2025 No limit 23.3 Calciummg/l 110Sampled Apr 2025 No limit 110 Potassiummg/l 1.8Sampled Apr 2025 No limit 1.8 Chloridemg/l 24Sampled Feb 2026 ≤ 250 24
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Apr 2025 ≤ 200 10 Antimonyμg/l 1Sampled Jun 2025 ≤ 5 1 Arsenicμg/l 2Sampled Apr 2025 ≤ 10 1 Bariumμg/l 69Sampled Apr 2025 ≤ 1,000 69 Cadmiumμg/l 1Sampled Jun 2025 ≤ 5 1 Chromiumμg/l 5Sampled Jun 2025 ≤ 50 5 Ironμg/l 10Sampled Jun 2025 ≤ 200 10 Manganeseμg/l 10Sampled Apr 2025 ≤ 50 10 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2Sampled Apr 2025 ≤ 10 2 Sodiummg/l 10.5Sampled Apr 2025 ≤ 200 10.5
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Total Trihalomethanesμg/l 10.8Sampled Feb 2026 ≤ 100 0.54
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Total pesticidesug/L 0.095 ≤ 0.5 0.095
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2025 ≤ 70 0.02 Atrazineug/L 0.005 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Apr 2025 No limit 0.001 PFOSug/L 0.001Sampled Apr 2025 No limit 0.001 PFNAug/L 0.001Sampled Apr 2025 No limit 0.001 Total PFASug/L 0.001Sampled Apr 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 0.05Sampled Feb 2026 No limit 0.015 Perchlorateug/L 0.44Sampled Oct 2025 No limit 0.44 Sulfatemg/l 58Sampled Feb 2026 No limit 58
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.
Your Water Quality
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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.
