← Back to summary See all parameters LFA VIDREZONNE LEZIGNEUX · Lérigneux
CA LOIRE FOREZ AGGLOMÉRATION
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.23 0.2 – 1 0.005 ▲ Total Chlorinemg CL2/l 0.24 No limit 0.048
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 16.3 No limit 16.3 Hardnessmg CaCO3/l 72.4 ● (Near the limit) 80 – 459 72.4 ● Hardness fF 7.24 No limit 7.24 pH 7.4 6.5 – 9.5 7.4 TurbidityNTU 0.13 ≤ 4 0.013 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 179 ≤ 2,500 179 TDSmg/l 114.6estimated 0 – 1,199 114.6 Alkalinitymg CaCO3/l 88.9 No limit 88.9
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 Jul 2026 ≤ 50 0.5 Fluoridemg F/l 0.06Sampled Jul 2026 ≤ 1.5 0.018 Mercuryμg Hg/l 0.5Sampled Jul 2026 ≤ 1 0.05 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 4.6 ≤ 50 1.38
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 1 No limit 1 Calciummg/l 27.3 No limit 27.3 Potassiummg/l 0.6Sampled Jul 2026 No limit 0.6 Chloridemg/l 1.7 ≤ 250 1.7
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Jul 2026 ≤ 200 10 Antimonyμg/l 1Sampled Jul 2026 ≤ 5 1 Arsenicμg/l 2Sampled Jul 2026 ≤ 10 1 Bariumμg/l 10Sampled Jul 2026 ≤ 1,000 10 Cadmiumμg/l 1Sampled Jul 2026 ≤ 5 1 Chromiumμg/l 5Sampled Jul 2026 ≤ 50 5 Copperμg/l 10Sampled Jul 2026 ≤ 2,000 0.5 Ironμg/l 10Sampled Jul 2026 ≤ 200 10 Manganeseμg/l 10Sampled Jul 2026 ≤ 50 10 Leadμg/l 2Sampled Jul 2026 ≤ 10 0.1 Nickelμg/l 5Sampled Jul 2026 ≤ 20 5 Seleniumμg/l 2Sampled Jul 2026 ≤ 10 2 Sodiummg/l 4.1Sampled Jul 2026 ≤ 200 4.1
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Jul 2026 No limit 0.005 Total Trihalomethanesμg/l 6.7Sampled Jul 2026 ≤ 100 0.34
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 0.6Sampled Jul 2026 ≤ 60 0.03
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Jul 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) Sampled Jul 2026 ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Jul 2026 ≤ 70 0.02 Atrazineug/L 0.005Sampled Jul 2026 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Jul 2026 No limit 0.001 PFOSug/L 0.001Sampled Jul 2026 No limit 0.001 PFNAug/L 0.001Sampled Jul 2026 No limit 0.001 Total PFASug/L 0.029Sampled Jul 2026 ≤ 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 0.01 No limit 0.003 Sulfatemg/l 4.1 No limit 4.1 Uraniumug/L 10Sampled Jul 2026 No limit 10
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.
