← Back to summary See all parameters FONT ST AUBIN · Montbron
SAUR VIENNE CHARENTE LIMOUSIN BERRY
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.27 0.2 – 1 0.005 ▲ Total Chlorinemg CL2/l 0.28 No limit 0.056
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 25.4 No limit 25.4 Hardnessmg CaCO3/l 218 80 – 459 218 Hardness fF 21.8 No limit 21.8 pH 7.3 6.5 – 9.5 7.3 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 453 ≤ 2,500 453 TDSmg/l 289.9estimated 0 – 1,199 289.9 Alkalinitymg CaCO3/l 199 No limit 199 Bicarbonatemg HCO3/l 232.5Sampled Sept 2025 No limit 232.5
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 5Sampled Apr 2026 ≤ 50 0.25 Fluoridemg F/l 0.08Sampled Apr 2026 ≤ 1.5 0.024 Mercuryμg Hg/l 0.01Sampled Apr 2026 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 24 ≤ 50 7.2
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 7.9Sampled Apr 2026 No limit 7.9 Calciummg/l 77.1Sampled Apr 2026 No limit 77.1 Potassiummg/l 1.2Sampled Apr 2026 No limit 1.2 Chloridemg/l 13.8 ≤ 250 13.8
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 1Sampled Apr 2026 ≤ 200 1 Antimonyμg/l 0.1Sampled Apr 2026 ≤ 5 0.1 Arsenicμg/l 0.18Sampled Apr 2026 ≤ 10 0.09 Bariumμg/l 28.9Sampled Apr 2026 ≤ 1,000 28.9 Cadmiumμg/l 0.025Sampled Apr 2026 ≤ 5 0.025 Chromiumμg/l 0.68Sampled Apr 2026 ≤ 50 0.68 Ironμg/l 1Sampled Apr 2026 ≤ 200 1 Manganeseμg/l 1Sampled Apr 2026 ≤ 50 1 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 0.31Sampled Apr 2026 ≤ 10 0.31 Sodiummg/l 6.8Sampled Apr 2026 ≤ 200 6.8
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.5Sampled Sept 2025 No limit 0.025 Total Trihalomethanesμg/l 6Sampled Oct 2025 ≤ 100 0.3
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.01Sampled Apr 2026 ≤ 0.4 0.01 Total pesticidesug/L 0Sampled Jul 2026 ≤ 0.5 0
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2026 ≤ 70 0.02 Atrazineug/L 0.02Sampled Apr 2026 ≤ 3 0.02
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Apr 2026 No limit 0.001 PFOSug/L 0.002Sampled Apr 2026 No limit 0.002 PFNAug/L 0.001Sampled Apr 2026 No limit 0.001 Total PFASug/L 0Sampled Apr 2026 ≤ 0.1 0 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 6.7 No limit 6.7 Uraniumug/L 0.32Sampled Apr 2026 No limit 0.32
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.
