← Back to summary See all parameters CHENECEY BUILLON · Échay
CU GRAND BESANÇON MÉTROPOLE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.25 0.2 – 1 0.005 ▲ Total Chlorinemg CL2/l 0.3 No limit 0.06
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 12.6 No limit 12.6 Hardnessmg CaCO3/l 229 80 – 459 229 Hardness fF 22.9 No limit 22.9 pH 8.1 6.5 – 9.5 8.1 TurbidityNTU 0.28 ≤ 4 0.028 ConductivityμS / cm 443 ≤ 2,500 443 TDSmg/l 283.5estimated 0 – 1,199 283.5 Alkalinitymg CaCO3/l 218 No limit 218
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 3.5 ≤ 50 1.05
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Chloridemg/l 7.8 ≤ 250 7.8
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Arsenicμg/l Not reported ≤ 10 — Leadμg/l Not reported ≤ 10 —
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 0.01 No limit 0.003 Sulfatemg/l 5.2 No limit 5.2
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.
