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SIEBAG
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 0.52 No limit 0.1
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 23.8 No limit 23.8 Hardnessmg CaCO3/l 265 80 – 459 265 Hardness fF 26.5 No limit 26.5 pH 7.37 6.5 – 9.5 7.37 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 773 ≤ 2,500 773 TDSmg/l 494.7estimated 0 – 1,199 494.7 Alkalinitymg CaCO3/l 274.5 No limit 274.5 Bicarbonatemg HCO3/l 296Sampled Jul 2025 No limit 296
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 10Sampled Jul 2025 ≤ 50 0.5 Fluoridemg F/l 0.05Sampled Jul 2025 ≤ 1.5 0.015 Mercuryμg Hg/l 0.01Sampled Jul 2025 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 38.4 ≤ 50 11.5
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 2.5 No limit 2.5 Calciummg/l 101.9 No limit 101.9 Potassiummg/l 0.9Sampled Jul 2025 No limit 0.9 Chloridemg/l 30 ≤ 250 30
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Aug 2025 ≤ 200 10 Antimonyμg/l 1Sampled Aug 2025 ≤ 5 1 Arsenicμg/l 3Sampled Jul 2025 ≤ 10 1.5 Bariumμg/l 25Sampled Jul 2025 ≤ 1,000 25 Cadmiumμg/l 1Sampled Aug 2025 ≤ 5 1 Chromiumμg/l 5Sampled Aug 2025 ≤ 50 5 Ironμg/l 10Sampled Aug 2025 ≤ 200 10 Manganeseμg/l 10Sampled Jul 2025 ≤ 50 10 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2Sampled Jul 2025 ≤ 10 2 Sodiummg/l 13.3Sampled Jul 2025 ≤ 200 13.3
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Jul 2025 No limit 0.005 Total Trihalomethanesμg/l 1.94Sampled Feb 2026 ≤ 100 0.097
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Apr 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2026 ≤ 70 0.02 Atrazineug/L 0.011Sampled Apr 2026 ≤ 3 0.011
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Jul 2025 No limit 0.001 PFOSug/L 0.001Sampled Jul 2025 No limit 0.001 PFNAug/L 0.001Sampled Jul 2025 No limit 0.001 Total PFASug/L 0.029Sampled Jul 2025 ≤ 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 4.5 No limit 4.5
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.
