← Back to summary See all parameters SEM MVG CHATEAUNEUF COUZON · Chagnon
CHOLTON S.A.
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.51 0.2 – 1 0.01 ▲ Total Chlorinemg CL2/l 0.69 No limit 0.14
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 14.2 No limit 14.2 Hardnessmg CaCO3/l 121.2 80 – 459 121.2 Hardness fF 12.1 No limit 12.1 pH 8.1 6.5 – 9.5 8.1 TurbidityNTU 0.12 ≤ 4 0.012 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 323 ≤ 2,500 323 TDSmg/l 206.7estimated 0 – 1,199 206.7 Alkalinitymg CaCO3/l 89 No limit 89
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 Mercuryμg Hg/l Not reported ≤ 1 — Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 15.7 ≤ 50 4.71
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.5 No limit 3.5 Calciummg/l 42.7 No limit 42.7 Potassiummg/l 2.3 No limit 2.3 Chloridemg/l 32.4 ≤ 250 32.4
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Arsenicμg/l Not reported ≤ 10 — Ironμg/l 10Sampled May 2026 ≤ 200 10 Leadμg/l Not reported ≤ 10 — Sodiummg/l 15.6 ≤ 200 15.6
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Total Trihalomethanesμg/l 44 ≤ 100 2.2
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 6.4 ≤ 60 0.32
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02 ≤ 70 0.02 Atrazineug/L 0.005 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered Total PFASug/L Not reported ≤ 0.1 — 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 0.03 No limit 0.009 Sulfatemg/l 12.7 No limit 12.7
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.
