← Back to summary See all parameters RESEAU BERNEDE DURET · Montréal
SYNDICAT ARMAGNAC TENAREZE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.42 0.2 – 1 0.008 ▲ Total Chlorinemg CL2/l 0.42 No limit 0.084
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 24.2 No limit 24.2 Hardnessmg CaCO3/l 104.3 80 – 459 104.3 Hardness fF 10.4 No limit 10.4 pH 7.9 6.5 – 9.5 7.9 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 297 ≤ 2,500 297 TDSmg/l 190.1estimated 0 – 1,199 190.1 Alkalinitymg CaCO3/l 137 No limit 137 Bicarbonatemg HCO3/l 149Sampled Jun 2026 No limit 149
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 10Sampled Jun 2026 ≤ 50 0.5 Fluoridemg F/l 0.19Sampled Jun 2026 ≤ 1.5 0.057 Mercuryμg Hg/l 0.5Sampled Jun 2026 ≤ 1 0.05 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 0.5 ≤ 50 0.15
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 5.3 No limit 5.3 Calciummg/l 33 No limit 33 Potassiummg/l 5.6Sampled Jun 2026 No limit 5.6 Chloridemg/l 8.4 ≤ 250 8.4
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Jun 2026 ≤ 200 10 Antimonyμg/l 1Sampled Jun 2026 ≤ 5 1 Arsenicμg/l 2Sampled Jun 2026 ≤ 10 1 Bariumμg/l 88Sampled Jun 2026 ≤ 1,000 88 Cadmiumμg/l 1Sampled Jun 2026 ≤ 5 1 Chromiumμg/l 5Sampled Jun 2026 ≤ 50 5 Ironμg/l 10Sampled Jun 2026 ≤ 200 10 Manganeseμg/l 10Sampled Jun 2026 ≤ 50 10 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2Sampled Jun 2026 ≤ 10 2 Sodiummg/l 15.8Sampled Jun 2026 ≤ 200 15.8
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Jun 2026 No limit 0.005 Total Trihalomethanesμg/l 4.91Sampled Jun 2026 ≤ 100 0.25
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 0.5Sampled Jun 2026 ≤ 60 0.025
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Jun 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.063Sampled Jun 2026 ≤ 0.5 0.063
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Jun 2026 ≤ 70 0.02 Atrazineug/L 0.005Sampled Jun 2026 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Jun 2026 No limit 0.001 PFOSug/L 0.001Sampled Jun 2026 No limit 0.001 PFNAug/L 0.001Sampled Jun 2026 No limit 0.001 Total PFASug/L 0.029Sampled Jun 2026 ≤ 0.1 0.003 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 20.6 No limit 20.6 Uraniumug/L 10Sampled Jun 2026 No limit 10
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.
