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SERPN (ROUMOIS / PLATEAU NEUBOURG)
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.37 0.2 – 1 0.007 ▲ Total Chlorinemg CL2/l 0.42 No limit 0.084
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 24 No limit 24 Hardnessmg CaCO3/l 309 80 – 459 309 Hardness fF 30.9 No limit 30.9 pH 7.7 6.5 – 9.5 7.7 TurbidityNTU 0.88 ≤ 4 0.088 ConductivityμS / cm 650 ≤ 2,500 650 TDSmg/l 416estimated 0 – 1,199 416 Alkalinitymg CaCO3/l 215 No limit 215 Bicarbonatemg HCO3/l 268Sampled Mar 2026 No limit 268
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered 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 Mar 2026 ≤ 50 0.5 Fluoridemg F/l 0.12Sampled Mar 2026 ≤ 1.5 0.036 Mercuryμg Hg/l 0.015Sampled Mar 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 52.5 ● (Near the limit) ≤ 50 15.8
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 12.6Sampled Mar 2026 No limit 12.6 Calciummg/l 94Sampled Mar 2026 No limit 94 Potassiummg/l 3.2Sampled Mar 2026 No limit 3.2 Chloridemg/l 35.8 ≤ 250 35.8
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 5.4Sampled Mar 2026 ≤ 200 5.4 Antimonyμg/l 0.5Sampled Mar 2026 ≤ 5 0.5 Arsenicμg/l 0.25Sampled Mar 2026 ≤ 10 0.13 Bariumμg/l 24.2Sampled Mar 2026 ≤ 1,000 24.2 Cadmiumμg/l 0.025Sampled Mar 2026 ≤ 5 0.025 Chromiumμg/l 0.5Sampled Mar 2026 ≤ 50 0.5 Ironμg/l 1Sampled Mar 2026 ≤ 200 1 Manganeseμg/l 0.5Sampled Mar 2026 ≤ 50 0.5 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 0.5Sampled Mar 2026 ≤ 10 0.5 Sodiummg/l 13.9Sampled Mar 2026 ≤ 200 13.9
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.05Sampled Mar 2026 No limit 0.003 Total Trihalomethanesμg/l 2Sampled Mar 2026 ≤ 100 0.1
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 0.5Sampled Mar 2026 ≤ 60 0.025
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Mar 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.26Sampled Mar 2026 ≤ 0.5 0.26
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 0.004Sampled Mar 2026 No limit 0.004 PFOSug/L 0.001Sampled Mar 2026 No limit 0.001 PFNAug/L 0.002Sampled Mar 2026 No limit 0.002 Total PFASug/L 0.01Sampled Mar 2026 ≤ 0.1 0.001 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 11.1 No limit 11.1 Uraniumug/L 0.54Sampled Mar 2026 No limit 0.54
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.
