← Back to summary See all parameters LFA VIDREZONNE VERRIERES · Lérigneux
CA LOIRE FOREZ AGGLOMÉRATION
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.16 ● (Near the limit) 0.2 – 1 0.003 ▲ Total Chlorinemg CL2/l 0.2 No limit 0.04
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 8.1 No limit 8.1 Hardnessmg CaCO3/l 76.2 ● (Near the limit) 80 – 459 76.2 ● Hardness fF 7.62 No limit 7.62 pH 8 6.5 – 9.5 8 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 180 ≤ 2,500 180 TDSmg/l 115.2estimated 0 – 1,199 115.2 Alkalinitymg CaCO3/l 82 No limit 82
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 Aug 2025 ≤ 50 0.5 Fluoridemg F/l 0.05Sampled Aug 2025 ≤ 1.5 0.015 Mercuryμg Hg/l 0.01Sampled Aug 2025 ≤ 1 0.001 Nitritesmg NO2/l 0.02 ≤ 0.5 0.008 Nitratesmg NO3/l 6.3 ≤ 50 1.89
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 1.1Sampled Aug 2025 No limit 1.1 Calciummg/l 32.8Sampled Aug 2025 No limit 32.8 Potassiummg/l 0.7Sampled Aug 2025 No limit 0.7 Chloridemg/l 1.8 ≤ 250 1.8
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Aug 2025 ≤ 200 10 Arsenicμg/l 2Sampled Aug 2025 ≤ 10 1 Bariumμg/l 10Sampled Aug 2025 ≤ 1,000 10 Ironμg/l 10Sampled Aug 2025 ≤ 200 10 Manganeseμg/l 10Sampled Aug 2025 ≤ 50 10 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2Sampled Aug 2025 ≤ 10 2 Sodiummg/l 3.9Sampled Aug 2025 ≤ 200 3.9
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Aug 2025 No limit 0.005 Total Trihalomethanesμg/l 3.24Sampled Aug 2025 ≤ 100 0.16
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Aug 2025 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) Sampled Aug 2025 ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Aug 2025 ≤ 70 0.02 Atrazineug/L 0.005Sampled Aug 2025 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Aug 2025 No limit 0.001 PFOSug/L 0.001Sampled Aug 2025 No limit 0.001 PFNAug/L 0.001Sampled Aug 2025 No limit 0.001 Total PFASug/L 0.029Sampled Aug 2025 ≤ 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 0.05 No limit 0.015 Sulfatemg/l 4 No limit 4
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.
