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SAUR
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.24 0.2 – 1 0.005 ▲ Total Chlorinemg CL2/l 0.28 No limit 0.056
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 20.5 No limit 20.5 Hardnessmg CaCO3/l 75 ● (Near the limit) 80 – 459 75 ● Hardness fF 7.5 No limit 7.5 pH 7.3 6.5 – 9.5 7.3 TurbidityNTU 0.3 ≤ 4 0.03 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 179Sampled Dec 2025 ≤ 2,500 179 TDSmg/l 114.6Sampled Dec 2025 estimated 0 – 1,199 114.6 Alkalinitymg CaCO3/l 62 No limit 62 Bicarbonatemg HCO3/l 87Sampled Oct 2025 No limit 87
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 Oct 2025 ≤ 50 0.25 Fluoridemg F/l 0.12Sampled Oct 2025 ≤ 1.5 0.036 Mercuryμg Hg/l 0.015Sampled Oct 2025 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 36 ≤ 50 10.8
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.5Sampled Oct 2025 No limit 3.5 Calciummg/l 19.4Sampled Oct 2025 No limit 19.4 Potassiummg/l 3.5Sampled Oct 2025 No limit 3.5 Chloridemg/l 16.2 ≤ 250 16.2
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 19Sampled Oct 2025 ≤ 200 19 Antimonyμg/l 0.2Sampled Sept 2025 ≤ 5 0.2 Arsenicμg/l 1.9Sampled Oct 2025 ≤ 10 0.95 Bariumμg/l 231Sampled Oct 2025 ≤ 1,000 231 Cadmiumμg/l 0.4Sampled Sept 2025 ≤ 5 0.4 Chromiumμg/l 0.4Sampled Sept 2025 ≤ 50 0.4 Ironμg/l 4 ≤ 200 4 Manganeseμg/l 1Sampled Oct 2025 ≤ 50 1 Leadμg/l Not reported ≤ 10 — Sodiummg/l 7.4Sampled Oct 2025 ≤ 200 7.4
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 4.2Sampled Feb 2026 ≤ 100 0.21
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.001Sampled Oct 2025 ≤ 0.4 0.001 Total pesticidesug/L 0Sampled Oct 2025 ≤ 0.5 0
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Oct 2025 ≤ 70 0.02 Atrazineug/L 0.01Sampled Oct 2025 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Oct 2025 No limit 0.001 PFOSug/L 0.002Sampled Oct 2025 No limit 0.002 PFNAug/L 0.001Sampled Oct 2025 No limit 0.001 Total PFASug/L 0Sampled Oct 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 2.85 No limit 2.85
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.
