← Back to summary See all parameters CHATEAU-GONTIER · Chemazé
VEOLIA EAU-COMPAGNIE GENERALE DES EAUX
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.88 0.2 – 1 0.018 ▲ Total Chlorinemg CL2/l 0.89 No limit 0.18
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 24.9 No limit 24.9 Hardnessmg CaCO3/l 150 80 – 459 150 Hardness fF 15 No limit 15 pH 7.3 6.5 – 9.5 7.3 TurbidityNTU 0.3 ≤ 4 0.03 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 482 ≤ 2,500 482 TDSmg/l 308.5estimated 0 – 1,199 308.5 Alkalinitymg CaCO3/l 85 No limit 85 Bicarbonatemg HCO3/l 104 No limit 104
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 5 ≤ 50 0.25 Fluoridemg F/l 0.11 ≤ 1.5 0.032 Mercuryμg Hg/l 0.01 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 4.9 ≤ 50 1.47
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 8.7 No limit 8.7 Calciummg/l 48.9 No limit 48.9 Potassiummg/l 6.1 No limit 6.1 Chloridemg/l 68.1 ≤ 250 68.1
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 3 ≤ 200 3 Antimonyμg/l 0.17 ≤ 5 0.17 Arsenicμg/l 0.2 ≤ 10 0.1 Bariumμg/l 22 ≤ 1,000 22 Cadmiumμg/l 0.02 ≤ 5 0.02 Chromiumμg/l 0.5 ≤ 50 0.5 Copperμg/l 16.7Sampled Jun 2026 ≤ 2,000 0.84 Ironμg/l 39 ≤ 200 39 Manganeseμg/l 0.5 ≤ 50 0.5 Leadμg/l 0.11Sampled Jun 2026 ≤ 10 0.006 Nickelμg/l 1.6Sampled Jun 2026 ≤ 20 1.6 Seleniumμg/l 0.2 ≤ 10 0.2 Sodiummg/l 31.4 ≤ 200 31.4
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1 No limit 0.005 Total Trihalomethanesμg/l 29Sampled Jun 2026 ≤ 100 1.45
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 1.6Sampled Jun 2026 ≤ 60 0.08
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Chlordaneug/L 0 ≤ 2 0 Heptachlorug/L 0.001 ≤ 0.4 0.001 Total pesticidesug/L 0 ≤ 0.5 0
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02 ≤ 70 0.02 Atrazineug/L 0.01 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.002 No limit 0.002 PFOSug/L 0.002 No limit 0.002 PFNAug/L 0.001 No limit 0.001 Total PFASug/L 0.016 ≤ 0.1 0.002 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 39.7 No limit 39.7 Uraniumug/L 0.02 No limit 0.02
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.
