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MAIRIE DE LAVALDENS
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.05 ● (Near the limit) 0.2 – 1 0.001 ▲ Total Chlorinemg CL2/l 0.05 No limit 0.01
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 6.5 No limit 6.5 Hardnessmg CaCO3/l 66.2 ● (Near the limit) 80 – 459 66.2 ● Hardness fF 6.62 No limit 6.62 pH 7.5 6.5 – 9.5 7.5 TurbidityNTU 0.78 ≤ 4 0.078 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 146 ≤ 2,500 146 TDSmg/l 93.4estimated 0 – 1,199 93.4 Alkalinitymg CaCO3/l 73 No limit 73
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0 ≤ 0 0 eColiUFC/100ml 0 ≤ 0 0 BacteriasNMP/100ml 4 ≤ 0 0.4 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 1.77 ≤ 50 0.53
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Chloridemg/l 0.5 ≤ 250 0.5
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Antimonyμg/l 1Sampled Sept 2025 ≤ 5 1 Arsenicμg/l Not reported ≤ 10 — Cadmiumμg/l 1Sampled Sept 2025 ≤ 5 1 Chromiumμg/l 5Sampled Sept 2025 ≤ 50 5 Copperμg/l 22Sampled Sept 2025 ≤ 2,000 1.1 Leadμg/l 2Sampled Sept 2025 ≤ 10 0.1 Nickelμg/l 5Sampled Sept 2025 ≤ 20 5
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 No limit 5
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.
