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STGS
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.15 ● (Near the limit) 0.2 – 1 0.003 ▲ Total Chlorinemg CL2/l 0.17 No limit 0.034
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 18.1 No limit 18.1 Hardnessmg CaCO3/l 251 80 – 459 251 Hardness fF 25.1 No limit 25.1 pH 7.7 6.5 – 9.5 7.7 TurbidityNTU 0.3 ≤ 4 0.03 ConductivityμS / cm 551 ≤ 2,500 551 TDSmg/l 352.6estimated 0 – 1,199 352.6 Alkalinitymg CaCO3/l 241 No limit 241 Bicarbonatemg HCO3/l 282Sampled Jun 2026 No limit 282
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 Jun 2026 ≤ 50 0.5 Fluoridemg F/l 0.1Sampled Jun 2026 ≤ 1.5 0.03 Mercuryμg Hg/l 0.015Sampled Jun 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 1.62 ≤ 50 0.49
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 14.8Sampled Jun 2026 No limit 14.8 Calciummg/l 75.5Sampled Jun 2026 No limit 75.5 Potassiummg/l 2Sampled Jun 2026 No limit 2 Chloridemg/l 12.3 ≤ 250 12.3
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 2Sampled Jun 2026 ≤ 200 2 Antimonyμg/l 0.5Sampled Jun 2026 ≤ 5 0.5 Arsenicμg/l 0.25Sampled Jun 2026 ≤ 10 0.13 Bariumμg/l 2Sampled Jun 2026 ≤ 1,000 2 Cadmiumμg/l 0.025Sampled Jun 2026 ≤ 5 0.025 Chromiumμg/l 0.5Sampled Jun 2026 ≤ 50 0.5 Ironμg/l 53.3Sampled Jun 2026 ≤ 200 53.3 Manganeseμg/l 1.8Sampled Jun 2026 ≤ 50 1.8 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 0.5Sampled Jun 2026 ≤ 10 0.5 Sodiummg/l 13.1Sampled Jun 2026 ≤ 200 13.1
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.05Sampled Jun 2026 No limit 0.003 Total Trihalomethanesμg/l 7Sampled Jun 2026 ≤ 100 0.35
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 0.7Sampled Jun 2026 ≤ 60 0.035
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Jun 2026 ≤ 0.4 0.005 Total pesticidesug/L 0Sampled Jun 2026 ≤ 0.5 0
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Jun 2026 ≤ 70 0.02 Atrazineug/L 0.01Sampled Jun 2026 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Jun 2026 No limit 0.001 PFOSug/L 0.001Sampled Jun 2026 No limit 0.001 PFNAug/L 0.001Sampled Jun 2026 No limit 0.001 Total PFASug/L 0Sampled Jun 2026 ≤ 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 0.01 No limit 0.003 Sulfatemg/l 14.8 No limit 14.8 Uraniumug/L 0.1Sampled Jun 2026 No limit 0.1
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.
Your Water Quality
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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.
