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MAIRIE DE SAINT-AREY
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.05 ● (Near the limit) 0.2 – 1 0.001 ▲ Total Chlorinemg CL2/l 0.05 No limit 0.01
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 22.5 No limit 22.5 Hardnessmg CaCO3/l 244.5Sampled Jul 2026 80 – 459 244.5 Hardness fF 24.5Sampled Jul 2026 No limit 24.5 pH 7.8 6.5 – 9.5 7.8 TurbidityNTU 0.2 ≤ 4 0.02 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 436 ≤ 2,500 436 TDSmg/l 279estimated 0 – 1,199 279 Alkalinitymg CaCO3/l 269Sampled Jul 2026 No limit 269
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0 ≤ 0 0 eColiUFC/100ml 1 ≤ 0 0.1 BacteriasNMP/100ml 1 ≤ 0 0.1 EnterococcusUFC/100ml 0 ≤ 0 0
Chemical parameters Chemical parameters Parameter Unfiltered tap water Allowed range Filtered Mercuryμg Hg/l Not reported ≤ 1 — Nitritesmg NO2/l 0.01Sampled Jul 2026 ≤ 0.5 0.004 Nitratesmg NO3/l 0.5Sampled Jul 2026 ≤ 50 0.15
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 11.2Sampled Jul 2025 No limit 11.2 Calciummg/l 70.6Sampled Jul 2025 No limit 70.6 Chloridemg/l 1.2Sampled Jul 2026 ≤ 250 1.2
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Arsenicμg/l Not reported ≤ 10 — Copperμg/l 10Sampled Nov 2025 ≤ 2,000 0.5 Ironμg/l 10Sampled Nov 2025 ≤ 200 10 Leadμg/l 2Sampled Nov 2025 ≤ 10 0.1 Nickelμg/l 5Sampled Nov 2025 ≤ 20 5
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 0.01Sampled Jul 2026 No limit 0.003 Sulfatemg/l 17.2Sampled Jul 2026 No limit 17.2
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.
