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MAIRIE DE COLOMBIER
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.03 ▲ (Outside the range) 0.2 – 1 0.001 ▲ Total Chlorinemg CL2/l 0.03 No limit 0.006
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 21 No limit 21 Hardnessmg CaCO3/l 19.6 ● (Near the limit) 80 – 459 19.6 ● Hardness fF 1.96 No limit 1.96 pH 7 6.5 – 9.5 7 TurbidityNTU 0.11 ≤ 4 0.011 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 74 ≤ 2,500 74 TDSmg/l 47.4estimated 0 – 1,199 47.4 Alkalinitymg CaCO3/l 21.5 No limit 21.5
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0 ≤ 0 0 eColiUFC/100ml 0 ≤ 0 0 BacteriasNMP/100ml 5 ≤ 0 0.5 EnterococcusUFC/100ml 0 ≤ 0 0
Chemical parameters Chemical parameters Parameter Unfiltered tap water Allowed range Filtered Cyanide totalμg CN/l 10Sampled May 2025 ≤ 50 0.5 Fluoridemg F/l 0.05Sampled May 2025 ≤ 1.5 0.015 Mercuryμg Hg/l 0.01Sampled May 2025 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 2.4 ≤ 50 0.72
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 1 No limit 1 Calciummg/l 6.2 No limit 6.2 Potassiummg/l 0.6Sampled May 2025 No limit 0.6 Chloridemg/l 5.7 ≤ 250 5.7
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 13Sampled May 2025 ≤ 200 13 Antimonyμg/l 1Sampled Mar 2025 ≤ 5 1 Arsenicμg/l 2Sampled May 2025 ≤ 10 1 Bariumμg/l 10Sampled May 2025 ≤ 1,000 10 Cadmiumμg/l 1Sampled Mar 2025 ≤ 5 1 Chromiumμg/l 5Sampled Mar 2025 ≤ 50 5 Ironμg/l 10Sampled May 2025 ≤ 200 10 Manganeseμg/l 10Sampled May 2025 ≤ 50 10 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2Sampled May 2025 ≤ 10 2 Sodiummg/l 9.1Sampled May 2025 ≤ 200 9.1
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled May 2025 No limit 0.005
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Total pesticidesug/L 0.5 ● (Near the limit) Sampled May 2025 ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled May 2025 ≤ 70 0.02 Atrazineug/L 0.005Sampled May 2025 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled May 2025 No limit 0.001 PFOSug/L 0.001Sampled May 2025 No limit 0.001 PFNAug/L 0.001Sampled May 2025 No limit 0.001 Total PFASug/L 0.001Sampled May 2025 ≤ 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 4.8 No limit 4.8
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.
