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SIVU DES EAUX DE FROIDEFONTAINE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.44 0.2 – 1 0.009 ▲ Total Chlorinemg CL2/l 0.48 No limit 0.096
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 10.1 No limit 10.1 Hardnessmg CaCO3/l 273 80 – 459 273 Hardness fF 27.3 No limit 27.3 pH 7.6 6.5 – 9.5 7.6 TurbidityNTU 0.2 ≤ 4 0.02 ColorColor Units 5Sampled Nov 2025 ≤ 15 5 ConductivityμS / cm 505 ≤ 2,500 505 TDSmg/l 323.2estimated 0 – 1,199 323.2 Alkalinitymg CaCO3/l 250 No limit 250
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 15Sampled Sept 2025 ≤ 50 0.75 Fluoridemg F/l 0.1Sampled Sept 2025 ≤ 1.5 0.03 Mercuryμg Hg/l 0.029Sampled Sept 2025 ≤ 1 0.003 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 10.1 ≤ 50 3.03
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 2.7Sampled Sept 2025 No limit 2.7 Calciummg/l 106Sampled Sept 2025 No limit 106 Potassiummg/l 2.4Sampled Sept 2025 No limit 2.4 Chloridemg/l 5.6 ≤ 250 5.6
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Sept 2025 ≤ 200 10 Arsenicμg/l 1Sampled Sept 2025 ≤ 10 0.5 Bariumμg/l 10Sampled Sept 2025 ≤ 1,000 10 Ironμg/l 20Sampled Sept 2025 ≤ 200 20 Manganeseμg/l 5Sampled Sept 2025 ≤ 50 5 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 1Sampled Sept 2025 ≤ 10 1 Sodiummg/l 2.6Sampled Sept 2025 ≤ 200 2.6
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Jan 2025 No limit 0.005 Total Trihalomethanesμg/l 24.5Sampled Jan 2025 ≤ 100 1.22
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Sept 2025 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) Sampled Sept 2025 ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Sept 2025 ≤ 70 0.02 Atrazineug/L 0.005Sampled Sept 2025 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered Total PFASug/L Not reported ≤ 0.1 — 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 5.7 No limit 5.7
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.
