← Back to summary See all parameters CISSE-QUINCAY · Ayron
EAUX DE VIENNE - SIVEER
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.3 0.2 – 1 0.006 ▲ Total Chlorinemg CL2/l 0.3 No limit 0.06
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 23 No limit 23 Hardnessmg CaCO3/l 320 80 – 459 320 Hardness fF 32 No limit 32 pH 7.4 6.5 – 9.5 7.4 TurbidityNTU 0.3 ≤ 4 0.03 ColorColor Units 5Sampled May 2026 ≤ 15 5 ConductivityμS / cm 687 ≤ 2,500 687 TDSmg/l 439.7estimated 0 – 1,199 439.7 Alkalinitymg CaCO3/l 249 No limit 249 Bicarbonatemg HCO3/l 307Sampled Nov 2025 No limit 307
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0Sampled Dec 2025 ≤ 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 May 2026 ≤ 50 0.25 Fluoridemg F/l 0.35 ≤ 1.5 0.11 Mercuryμg Hg/l 0.015Sampled May 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 41 ● (Near the limit) ≤ 50 12.3
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 13Sampled May 2026 No limit 13 Calciummg/l 110Sampled May 2026 No limit 110 Potassiummg/l 2Sampled May 2026 No limit 2 Chloridemg/l 31 ≤ 250 31
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 20Sampled May 2026 ≤ 200 20 Antimonyμg/l 0.5Sampled May 2026 ≤ 5 0.5 Arsenicμg/l 0.2Sampled May 2026 ≤ 10 0.1 Bariumμg/l 30Sampled May 2026 ≤ 1,000 30 Cadmiumμg/l 0.025Sampled May 2026 ≤ 5 0.025 Chromiumμg/l 1Sampled May 2026 ≤ 50 1 Copperμg/l 10Sampled May 2026 ≤ 2,000 0.5 Ironμg/l 31Sampled May 2026 ≤ 200 31 Manganeseμg/l 2Sampled May 2026 ≤ 50 2 Leadμg/l 0.4Sampled May 2026 ≤ 10 0.02 Nickelμg/l 2Sampled May 2026 ≤ 20 2 Seleniumμg/l 2Sampled Nov 2025 ≤ 10 2 Sodiummg/l 14Sampled May 2026 ≤ 200 14
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.15Sampled May 2026 No limit 0.008 Total Trihalomethanesμg/l 14.3Sampled May 2026 ≤ 100 0.71
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 6Sampled May 2026 ≤ 60 0.3
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.01Sampled May 2026 ≤ 0.4 0.01 Total pesticidesug/L 0.02Sampled May 2026 ≤ 0.5 0.02
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.06Sampled May 2026 ≤ 70 0.06 Atrazineug/L 0.02Sampled May 2026 ≤ 3 0.02
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled May 2026 No limit 0.001 PFOSug/L 0.001Sampled May 2026 No limit 0.001 PFNAug/L 0.001Sampled May 2026 No limit 0.001 Total PFASug/L 0Sampled May 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 38 No limit 38 Uraniumug/L 1Sampled May 2026 No limit 1
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.
