← Back to summary See all parameters CHATEAU - FEUILLET · Saint-Pierre-de-Chartreuse
MAIRIE DE SAINT-LAURENT-DU-PONT
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.12 ● (Near the limit) 0.2 – 1 0.002 ▲ Total Chlorinemg CL2/l 0.17 No limit 0.034
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 22.8 No limit 22.8 Hardnessmg CaCO3/l 184.4 80 – 459 184.4 Hardness fF 18.4 No limit 18.4 pH 7.5 6.5 – 9.5 7.5 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 349 ≤ 2,500 349 TDSmg/l 223.4estimated 0 – 1,199 223.4 Alkalinitymg CaCO3/l 212 No limit 212
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 10 ≤ 50 0.5 Fluoridemg F/l 0.07 ≤ 1.5 0.021 Mercuryμg Hg/l 0.01 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 2.1 ≤ 50 0.63
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 2.7 No limit 2.7 Calciummg/l 69.3 No limit 69.3 Potassiummg/l 0.2 No limit 0.2 Chloridemg/l 1.3 ≤ 250 1.3
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10 ≤ 200 10 Antimonyμg/l 1 ≤ 5 1 Arsenicμg/l 2 ≤ 10 1 Bariumμg/l 10 ≤ 1,000 10 Cadmiumμg/l 1 ≤ 5 1 Chromiumμg/l 5 ≤ 50 5 Ironμg/l 10 ≤ 200 10 Manganeseμg/l 10 ≤ 50 10 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2 ≤ 10 2 Sodiummg/l 1.3 ≤ 200 1.3
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1 No limit 0.005 Total Trihalomethanesμg/l 29Sampled Jun 2025 ≤ 100 1.45
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005 ≤ 0.4 0.005 Total pesticidesug/L 0.5 ● (Near the limit) ≤ 0.5 0.5 ●
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02 ≤ 70 0.02 Atrazineug/L 0.005 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001 No limit 0.001 PFOSug/L 0.001 No limit 0.001 PFNAug/L 0.001 No limit 0.001 Total PFASug/L 0.029 ≤ 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 5.9 No limit 5.9 Uraniumug/L 10 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.
