← Back to summary See all parameters ALEXAIN - ST GERMAIN · Saint-Germain-le-Guillaume
SIAEP DE L'ANXURE ET DE LA PERCHE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.29 0.2 – 1 0.006 ▲ Total Chlorinemg CL2/l 0.33 No limit 0.066
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 27.5 No limit 27.5 Hardnessmg CaCO3/l 178 80 – 459 178 Hardness fF 17.8 No limit 17.8 pH 7.8 6.5 – 9.5 7.8 TurbidityNTU 0.3 ≤ 4 0.03 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 482 ≤ 2,500 482 TDSmg/l 308.5estimated 0 – 1,199 308.5 Alkalinitymg CaCO3/l 130 No limit 130 Bicarbonatemg HCO3/l 147Sampled May 2026 No limit 147
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0Sampled Feb 2026 ≤ 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 5Sampled Feb 2026 ≤ 50 0.25 Fluoridemg F/l 0.066Sampled May 2026 ≤ 1.5 0.02 Mercuryμg Hg/l 0.01Sampled Feb 2026 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 37 ≤ 50 11.1
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 7.3Sampled May 2026 No limit 7.3 Calciummg/l 55.1Sampled May 2026 No limit 55.1 Potassiummg/l 2.1Sampled May 2026 No limit 2.1 Chloridemg/l 26 ≤ 250 26
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 1Sampled Feb 2026 ≤ 200 1 Antimonyμg/l 0.1Sampled Feb 2026 ≤ 5 0.1 Arsenicμg/l 0.2Sampled Feb 2026 ≤ 10 0.1 Bariumμg/l 50Sampled Feb 2026 ≤ 1,000 50 Cadmiumμg/l 0.036Sampled Feb 2026 ≤ 5 0.036 Chromiumμg/l 0.3Sampled Feb 2026 ≤ 50 0.3 Copperμg/l 15Sampled Jun 2026 ≤ 2,000 0.75 Ironμg/l 1 ≤ 200 1 Manganeseμg/l 0.6 ≤ 50 0.6 Leadμg/l 0.6Sampled Jun 2026 ≤ 10 0.03 Nickelμg/l 2.1Sampled Jun 2026 ≤ 20 2.1 Seleniumμg/l 0.3Sampled Feb 2026 ≤ 10 0.3 Sodiummg/l 25.3Sampled May 2026 ≤ 200 25.3
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Feb 2026 No limit 0.005 Total Trihalomethanesμg/l 17Sampled Jun 2026 ≤ 100 0.85
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 4.8Sampled Jun 2026 ≤ 60 0.24
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Chlordaneug/L 0Sampled Feb 2026 ≤ 2 0 Heptachlorug/L 0.001Sampled Feb 2026 ≤ 0.4 0.001 Total pesticidesug/L 0.037Sampled Feb 2026 ≤ 0.5 0.037
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Feb 2026 ≤ 70 0.02 Atrazineug/L 0.01Sampled Feb 2026 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Feb 2026 No limit 0.001 PFOSug/L 0.002Sampled Feb 2026 No limit 0.002 PFNAug/L 0.001Sampled Feb 2026 No limit 0.001 Total PFASug/L 0Sampled Feb 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 43.9 No limit 43.9 Uraniumug/L 0.08Sampled Feb 2026 No limit 0.08
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.
