← Back to summary See all parameters S.AEP DE LA MARCHE ET BOISCHAU · Orcenais
S.A.U.R. 45
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.84 0.2 – 1 0.017 ▲ Total Chlorinemg CL2/l 1.13 No limit 0.23
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 13.2 No limit 13.2 Hardnessmg CaCO3/l 119.5Sampled May 2026 80 – 459 119.5 Hardness fF 12Sampled May 2026 No limit 12 pH 7.8Sampled May 2026 6.5 – 9.5 7.8 TurbidityNTU 0.57Sampled May 2026 ≤ 4 0.057 ColorColor Units 5Sampled May 2026 ≤ 15 5 ConductivityμS / cm 292Sampled May 2026 ≤ 2,500 292 TDSmg/l 186.9Sampled May 2026 estimated 0 – 1,199 186.9 Alkalinitymg CaCO3/l 74.5Sampled May 2026 No limit 74.5 Bicarbonatemg HCO3/l 117Sampled Oct 2025 No limit 117
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0Sampled May 2026 ≤ 0 0 eColiUFC/100ml 0Sampled May 2026 ≤ 0 0 BacteriasNMP/100ml 0Sampled May 2026 ≤ 0 0 EnterococcusUFC/100ml 0Sampled May 2026 ≤ 0 0
Chemical parameters Chemical parameters Parameter Unfiltered tap water Allowed range Filtered Cyanide totalμg CN/l 10Sampled May 2026 ≤ 50 0.5 Fluoridemg F/l 0.08Sampled May 2026 ≤ 1.5 0.024 Mercuryμg Hg/l 0.01Sampled May 2026 ≤ 1 0.001 Nitritesmg NO2/l 0.01Sampled May 2026 ≤ 0.5 0.004 Nitratesmg NO3/l 14.9Sampled May 2026 ≤ 50 4.47
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 3.9Sampled May 2026 No limit 3.9 Calciummg/l 41.4Sampled May 2026 No limit 41.4 Potassiummg/l 3.3Sampled May 2026 No limit 3.3 Chloridemg/l 31.4Sampled May 2026 ≤ 250 31.4
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 25Sampled May 2026 ≤ 200 25 Antimonyμg/l 1Sampled May 2026 ≤ 5 1 Arsenicμg/l 2Sampled May 2026 ≤ 10 1 Bariumμg/l 33Sampled May 2026 ≤ 1,000 33 Cadmiumμg/l 1Sampled May 2026 ≤ 5 1 Chromiumμg/l 5Sampled May 2026 ≤ 50 5 Copperμg/l 10Sampled May 2026 ≤ 2,000 0.5 Ironμg/l 226 ● (Near the limit) ≤ 200 226 ● Manganeseμg/l 10Sampled May 2026 ≤ 50 10 Leadμg/l 2Sampled May 2026 ≤ 10 0.1 Nickelμg/l 5Sampled May 2026 ≤ 20 5 Seleniumμg/l 2Sampled May 2026 ≤ 10 2 Sodiummg/l 7.1Sampled May 2026 ≤ 200 7.1
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled May 2026 No limit 0.005 Total Trihalomethanesμg/l 62.9 ≤ 100 3.14
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 16.2Sampled May 2026 ≤ 60 0.81
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Total pesticidesug/L 0.019Sampled May 2026 ≤ 0.5 0.019
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled May 2026 ≤ 70 0.02 Atrazineug/L 0.005Sampled May 2026 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled May 2026 No limit 0.001 PFOSug/L 0.001Sampled May 2026 No limit 0.001 PFNAug/L 0.001Sampled May 2026 No limit 0.001 Total PFASug/L 0.003Sampled May 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 0.05Sampled May 2026 No limit 0.015 Sulfatemg/l 10.1Sampled May 2026 No limit 10.1 Uraniumug/L 10Sampled May 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.
