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GAZ ET EAUX
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.08 ● (Near the limit) 0.2 – 1 0.002 ▲ Total Chlorinemg CL2/l 0.1 No limit 0.02
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 20.2 No limit 20.2 Hardnessmg CaCO3/l 265 80 – 459 265 Hardness fF 26.5 No limit 26.5 pH 8.1 6.5 – 9.5 8.1 TurbidityNTU 0.2 ≤ 4 0.02 ConductivityμS / cm 457 ≤ 2,500 457 TDSmg/l 292.5estimated 0 – 1,199 292.5 Alkalinitymg CaCO3/l 222 No limit 222
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 0.07Sampled Jun 2026 ≤ 1.5 0.021 Mercuryμg Hg/l 0.015Sampled Jun 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 4 ≤ 50 1.2
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.9Sampled Jun 2026 No limit 3.9 Calciummg/l 92.5Sampled Jun 2026 No limit 92.5 Potassiummg/l 0.89Sampled Jun 2026 No limit 0.89 Chloridemg/l 8.6 ≤ 250 8.6
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Jun 2026 ≤ 200 10 Antimonyμg/l 5 ● (Near the limit) Sampled Jun 2026 ≤ 5 5 ● Arsenicμg/l 5Sampled Jun 2026 ≤ 10 2.5 Bariumμg/l 10Sampled Jun 2026 ≤ 1,000 10 Cadmiumμg/l 1Sampled Jun 2026 ≤ 5 1 Chromiumμg/l 2Sampled Jun 2026 ≤ 50 2 Copperμg/l 158Sampled Jun 2026 ≤ 2,000 7.9 Ironμg/l 10Sampled Jun 2026 ≤ 200 10 Manganeseμg/l 2Sampled Jun 2026 ≤ 50 2 Leadμg/l 2Sampled Jun 2026 ≤ 10 0.1 Nickelμg/l 2Sampled Jun 2026 ≤ 20 2 Seleniumμg/l 20 ▲ (Outside the range) Sampled Jun 2026 ≤ 10 20 ▲ Sodiummg/l 3.16Sampled Jun 2026 ≤ 200 3.16
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Jun 2026 No limit 0.005 Total Trihalomethanesμg/l 20.3Sampled Jun 2026 ≤ 100 1.02
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 4.8Sampled Jun 2026 ≤ 60 0.24
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Jun 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) Sampled Jun 2026 ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Jun 2026 ≤ 70 0.02 Atrazineug/L 0.005Sampled Jun 2026 ≤ 3 0.005
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 0.029Sampled Jun 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 5.6 No limit 5.6 Uraniumug/L 10Sampled Jun 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.
