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MAIRIE DE SAINT SIFFRET
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.34 0.2 – 1 0.007 ▲ Total Chlorinemg CL2/l 0.41 No limit 0.082
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 24.9 No limit 24.9 Hardnessmg CaCO3/l 233.4 80 – 459 233.4 Hardness fF 23.3 No limit 23.3 pH 7.6 6.5 – 9.5 7.6 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 475 ≤ 2,500 475 TDSmg/l 304estimated 0 – 1,199 304 Alkalinitymg CaCO3/l 237 No limit 237 Bicarbonatemg HCO3/l 256Sampled Apr 2026 No limit 256
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered 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 Apr 2026 ≤ 50 0.5 Fluoridemg F/l 0.17Sampled Apr 2026 ≤ 1.5 0.051 Mercuryμg Hg/l 0.5Sampled Apr 2026 ≤ 1 0.05 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 32 ≤ 50 9.6
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.5 No limit 3.5 Calciummg/l 87.6 No limit 87.6 Potassiummg/l 0.5Sampled Apr 2026 No limit 0.5 Chloridemg/l 10.7 ≤ 250 10.7
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Apr 2026 ≤ 200 10 Antimonyμg/l 1Sampled Apr 2026 ≤ 5 1 Arsenicμg/l 2Sampled Apr 2026 ≤ 10 1 Bariumμg/l 20Sampled Apr 2026 ≤ 1,000 20 Cadmiumμg/l 1Sampled Apr 2026 ≤ 5 1 Chromiumμg/l 5Sampled Apr 2026 ≤ 50 5 Copperμg/l 10Sampled Apr 2025 ≤ 2,000 0.5 Ironμg/l 10Sampled Apr 2026 ≤ 200 10 Manganeseμg/l 10Sampled Apr 2026 ≤ 50 10 Leadμg/l 2Sampled Apr 2025 ≤ 10 0.1 Nickelμg/l 5Sampled Apr 2025 ≤ 20 5 Seleniumμg/l 2Sampled Apr 2026 ≤ 10 2 Sodiummg/l 5.6Sampled Apr 2026 ≤ 200 5.6
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Apr 2026 No limit 0.005 Total Trihalomethanesμg/l 4.03Sampled Apr 2026 ≤ 100 0.2
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 0.6Sampled Apr 2026 ≤ 60 0.03
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Apr 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.044 ≤ 0.5 0.044
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2026 ≤ 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 2026 No limit 0.001 PFOSug/L 0.001Sampled Apr 2026 No limit 0.001 PFNAug/L 0.001Sampled Apr 2026 No limit 0.001 Total PFASug/L 0.029Sampled Apr 2026 ≤ 0.1 0.003 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 12.8 No limit 12.8 Uraniumug/L 10Sampled Apr 2026 No limit 10
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.
