← Back to summary See all parameters RESERVOIR DU MARCHAIS · Saint-Pierre-du-Chemin
VEOLIA
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.06 ● (Near the limit) 0.2 – 1 0.001 ▲ Total Chlorinemg CL2/l 0.11 No limit 0.022
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 25.5 No limit 25.5 Hardnessmg CaCO3/l 115 80 – 459 115 Hardness fF 11.5 No limit 11.5 pH 7.4 6.5 – 9.5 7.4 TurbidityNTU 0.25 ≤ 4 0.025 ColorColor Units 2 ≤ 15 2 ConductivityμS / cm 340 ≤ 2,500 340 TDSmg/l 217.6estimated 0 – 1,199 217.6 Alkalinitymg CaCO3/l 80 No limit 80 Bicarbonatemg HCO3/l 103.7Sampled Mar 2026 No limit 103.7
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 0.5Sampled Mar 2026 ≤ 50 0.025 Fluoridemg F/l 0.1Sampled Mar 2026 ≤ 1.5 0.03 Mercuryμg Hg/l 0.015Sampled Mar 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 22 ≤ 50 6.6
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 5.2 No limit 5.2 Calciummg/l 37.5 No limit 37.5 Potassiummg/l 3.59Sampled Mar 2026 No limit 3.59 Chloridemg/l 32 ≤ 250 32
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Mar 2026 ≤ 200 10 Antimonyμg/l 0.5Sampled Mar 2026 ≤ 5 0.5 Arsenicμg/l 0.5Sampled Mar 2026 ≤ 10 0.25 Bariumμg/l 30Sampled Mar 2026 ≤ 1,000 30 Cadmiumμg/l 0.5Sampled Mar 2026 ≤ 5 0.5 Chromiumμg/l 0.5Sampled Mar 2026 ≤ 50 0.5 Copperμg/l 37Sampled Sept 2025 ≤ 2,000 1.85 Ironμg/l 10 ≤ 200 10 Manganeseμg/l 5 ≤ 50 5 Leadμg/l 0.5Sampled Sept 2025 ≤ 10 0.025 Nickelμg/l 5Sampled Sept 2025 ≤ 20 5 Seleniumμg/l 0.5Sampled Mar 2026 ≤ 10 0.5 Sodiummg/l 12.9Sampled Mar 2026 ≤ 200 12.9
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.2Sampled Mar 2026 No limit 0.01 Total Trihalomethanesμg/l 18Sampled Sept 2025 ≤ 100 0.9
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.002Sampled Mar 2026 ≤ 0.4 0.002 Total pesticidesug/L 0Sampled Mar 2026 ≤ 0.5 0
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Mar 2026 ≤ 70 0.02 Atrazineug/L 0.01Sampled Mar 2026 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.002Sampled Mar 2026 No limit 0.002 PFOSug/L 0.002Sampled Mar 2026 No limit 0.002 PFNAug/L 0.005Sampled Mar 2026 No limit 0.005 Total PFASug/L 0Sampled Mar 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 20 No limit 20 Uraniumug/L 0.5Sampled Mar 2026 No limit 0.5
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.
