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MAIRIE DE MARNAVES
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 24.5 No limit 24.5 Hardnessmg CaCO3/l 566.9 ▲ (Outside the range) 80 – 459 566.9 ▲ Hardness fF 56.7 No limit 56.7 pH 7.64 6.5 – 9.5 7.64 TurbidityNTU 0.74 ≤ 4 0.074 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 986 ≤ 2,500 986 TDSmg/l 631estimated 0 – 1,199 631 Alkalinitymg CaCO3/l 385.5 No limit 385.5 Bicarbonatemg HCO3/l 462Sampled Aug 2025 No limit 462
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 Aug 2025 ≤ 50 0.5 Fluoridemg F/l 0.17Sampled Aug 2025 ≤ 1.5 0.051 Mercuryμg Hg/l 0.01Sampled Aug 2025 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 9.5 ≤ 50 2.85
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 47 No limit 47 Calciummg/l 149.4 No limit 149.4 Potassiummg/l 2.9Sampled Aug 2025 No limit 2.9 Chloridemg/l 10.1 ≤ 250 10.1
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Aug 2025 ≤ 200 10 Arsenicμg/l 2Sampled Aug 2025 ≤ 10 1 Bariumμg/l 22Sampled Aug 2025 ≤ 1,000 22 Ironμg/l 24Sampled Aug 2025 ≤ 200 24 Manganeseμg/l 10Sampled Aug 2025 ≤ 50 10 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 2Sampled Aug 2025 ≤ 10 2 Sodiummg/l 6Sampled Aug 2025 ≤ 200 6
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Aug 2025 No limit 0.005 Total Trihalomethanesμg/l 13.1Sampled Aug 2025 ≤ 100 0.65
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Aug 2025 ≤ 0.4 0.005 Total pesticidesug/L 0.008Sampled Aug 2025 ≤ 0.5 0.008
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Aug 2025 ≤ 70 0.02 Atrazineug/L 0.005Sampled Aug 2025 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Aug 2025 No limit 0.001 PFOSug/L 0.001Sampled Aug 2025 No limit 0.001 PFNAug/L 0.001Sampled Aug 2025 No limit 0.001 Total PFASug/L 0.029Sampled Aug 2025 ≤ 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 193 No limit 193
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.