← Back to summary See all parameters AILLY · Gaillon
VEOLIA EAU CGE LOUVIERS
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.5 0.2 – 1 0.01 ▲ Total Chlorinemg CL2/l 0.55 No limit 0.11
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 20.7 No limit 20.7 Hardnessmg CaCO3/l 331 80 – 459 331 Hardness fF 33.1 No limit 33.1 pH 7 6.5 – 9.5 7 TurbidityNTU 0.32 ≤ 4 0.032 ConductivityμS / cm 667 ≤ 2,500 667 TDSmg/l 426.9estimated 0 – 1,199 426.9 Alkalinitymg CaCO3/l 277 No limit 277 Bicarbonatemg HCO3/l 349Sampled Apr 2026 No limit 349
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 0.21Sampled Apr 2026 ≤ 1.5 0.063 Mercuryμg Hg/l 0.015Sampled Apr 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 16.3 ≤ 50 4.89
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 9.97Sampled Apr 2026 No limit 9.97 Calciummg/l 118.4Sampled Apr 2026 No limit 118.4 Potassiummg/l 3.1Sampled Apr 2026 No limit 3.1 Chloridemg/l 26.4 ≤ 250 26.4
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 6.6Sampled Apr 2026 ≤ 200 6.6 Antimonyμg/l 0.5Sampled Apr 2026 ≤ 5 0.5 Arsenicμg/l 0.25Sampled Apr 2026 ≤ 10 0.13 Bariumμg/l 31.5Sampled Apr 2026 ≤ 1,000 31.5 Cadmiumμg/l 0.025Sampled Apr 2026 ≤ 5 0.025 Chromiumμg/l 0.5Sampled Apr 2026 ≤ 50 0.5 Ironμg/l 20 ≤ 200 20 Manganeseμg/l 3.2Sampled Apr 2026 ≤ 50 3.2 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 3.3Sampled Apr 2026 ≤ 10 3.3 Sodiummg/l 12.2Sampled Apr 2026 ≤ 200 12.2
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.05Sampled Apr 2026 No limit 0.003 Total Trihalomethanesμg/l 4Sampled May 2026 ≤ 100 0.2
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 2.96Sampled Apr 2026 ≤ 60 0.15
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Apr 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.11Sampled Apr 2026 ≤ 0.5 0.11
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2026 ≤ 70 0.02 Atrazineug/L 0.01Sampled Apr 2026 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Apr 2026 No limit 0.001 PFOSug/L 0.002Sampled Apr 2026 No limit 0.002 PFNAug/L 0.001Sampled Apr 2026 No limit 0.001 Total PFASug/L 0.006Sampled Apr 2026 ≤ 0.1 0.001 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 2.17 No limit 2.17 Uraniumug/L 1.7Sampled Apr 2026 No limit 1.7
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.
