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CA LOIRE FOREZ AGGLOMÉRATION
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.06 ● (Near the limit) 0.2 – 1 0.001 ▲ Total Chlorinemg CL2/l 0.06 No limit 0.012
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 19.4 No limit 19.4 Hardnessmg CaCO3/l 95.9 80 – 459 95.9 Hardness fF 9.59 No limit 9.59 pH 7 6.5 – 9.5 7 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 230 ≤ 2,500 230 TDSmg/l 147.2estimated 0 – 1,199 147.2 Alkalinitymg CaCO3/l 90.6 No limit 90.6
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 10Sampled May 2025 ≤ 50 0.5 Fluoridemg F/l 0.07Sampled May 2025 ≤ 1.5 0.021 Mercuryμg Hg/l 0.01Sampled May 2025 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 15.2 ≤ 50 4.56
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 2.4 No limit 2.4 Calciummg/l 34.4 No limit 34.4 Potassiummg/l 1.7Sampled May 2025 No limit 1.7 Chloridemg/l 3.1 ≤ 250 3.1
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled May 2025 ≤ 200 10 Antimonyμg/l 1Sampled Feb 2025 ≤ 5 1 Arsenicμg/l 2Sampled May 2025 ≤ 10 1 Bariumμg/l 18Sampled May 2025 ≤ 1,000 18 Cadmiumμg/l 1Sampled Feb 2025 ≤ 5 1 Chromiumμg/l 5Sampled Feb 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 5.7Sampled May 2025 ≤ 200 5.7
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled May 2025 No limit 0.005 Total Trihalomethanesμg/l 1.72Sampled May 2025 ≤ 100 0.086
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled May 2025 ≤ 0.4 0.005 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 4.9 No limit 4.9
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.
