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EAUX DE NORMANDIE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.48 0.2 – 1 0.01 ▲ Total Chlorinemg CL2/l 0.51 No limit 0.1
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 11 No limit 11 Hardnessmg CaCO3/l 326 80 – 459 326 Hardness fF 32.6 No limit 32.6 pH 8.1 6.5 – 9.5 8.1 TurbidityNTU 0.31 ≤ 4 0.031 ConductivityμS / cm 631 ≤ 2,500 631 TDSmg/l 403.8estimated 0 – 1,199 403.8 Alkalinitymg CaCO3/l 280 No limit 280 Bicarbonatemg HCO3/l 336Sampled May 2025 No limit 336
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0Sampled Sept 2025 ≤ 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 May 2025 ≤ 50 0.5 Fluoridemg F/l 0.082Sampled May 2025 ≤ 1.5 0.025 Mercuryμg Hg/l 0.05Sampled May 2025 ≤ 1 0.005 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 0.5 ≤ 50 0.15
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 6.9Sampled May 2025 No limit 6.9 Calciummg/l 120Sampled May 2025 No limit 120 Potassiummg/l 1.7Sampled May 2025 No limit 1.7 Chloridemg/l 17 ≤ 250 17
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 2Sampled May 2025 ≤ 200 2 Arsenicμg/l 0.47Sampled May 2025 ≤ 10 0.24 Bariumμg/l 15Sampled May 2025 ≤ 1,000 15 Ironμg/l 41.5 ≤ 200 41.5 Manganeseμg/l 3 ≤ 50 3 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 0.5Sampled May 2025 ≤ 10 0.5 Sodiummg/l 6.2Sampled May 2025 ≤ 200 6.2
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.05Sampled May 2025 No limit 0.003 Total Trihalomethanesμg/l 9.16Sampled May 2025 ≤ 100 0.46
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled May 2025 ≤ 0.4 0.005 Total pesticidesug/L 0Sampled May 2025 ≤ 0.5 0
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled May 2025 ≤ 70 0.02 Atrazineug/L 0.01Sampled May 2025 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled May 2025 No limit 0.001 PFOSug/L 0.001Sampled May 2025 No limit 0.001 PFNAug/L 0.001Sampled May 2025 No limit 0.001 Total PFASug/L 0Sampled May 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 0.05 No limit 0.015 Sulfatemg/l 27 No limit 27
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.
