← Back to summary See all parameters PAS ST L'HOMER PERRUCHET · Cour-Maugis sur Huisne
SIAEP DU PERCH'EST
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.05 ● (Near the limit) 0.2 – 1 0.001 ▲ Total Chlorinemg CL2/l 0.05 No limit 0.01
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 17Sampled Jun 2026 No limit 17 Hardnessmg CaCO3/l 188Sampled Jun 2026 80 – 459 188 Hardness fF 18.8Sampled Jun 2026 No limit 18.8 pH 8Sampled Jun 2026 6.5 – 9.5 8 TurbidityNTU 1.7 ≤ 4 0.17 ConductivityμS / cm 384Sampled Jun 2026 ≤ 2,500 384 TDSmg/l 245.8Sampled Jun 2026 estimated 0 – 1,199 245.8 Alkalinitymg CaCO3/l 156Sampled Jun 2026 No limit 156 Bicarbonatemg HCO3/l 204Sampled Mar 2026 No limit 204
Pathogens Pathogens Parameter Unfiltered tap water Allowed range Filtered ClostridiumUFC/100ml 0Sampled Nov 2025 ≤ 0 0 eColiUFC/100ml 0Sampled Jun 2026 ≤ 0 0 BacteriasNMP/100ml 0Sampled Jun 2026 ≤ 0 0 EnterococcusUFC/100ml 0Sampled Jun 2026 ≤ 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 0.05Sampled Mar 2026 ≤ 1.5 0.015 Mercuryμg Hg/l 0.05Sampled Mar 2026 ≤ 1 0.005 Nitritesmg NO2/l 0.01Sampled Jun 2026 ≤ 0.5 0.004 Nitratesmg NO3/l 0.5Sampled Jun 2026 ≤ 50 0.15
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 4.1Sampled Mar 2026 No limit 4.1 Calciummg/l 75Sampled Mar 2026 No limit 75 Potassiummg/l 1.5Sampled Mar 2026 No limit 1.5 Chloridemg/l 13Sampled Jun 2026 ≤ 250 13
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 2Sampled Mar 2026 ≤ 200 2 Antimonyμg/l 0.5Sampled Mar 2026 ≤ 5 0.5 Arsenicμg/l 0.49Sampled Mar 2026 ≤ 10 0.25 Bariumμg/l 1Sampled Mar 2026 ≤ 1,000 1 Cadmiumμg/l 0.025Sampled Mar 2026 ≤ 5 0.025 Chromiumμg/l 1Sampled Mar 2026 ≤ 50 1 Ironμg/l 429 ▲ (Outside the range) ≤ 200 429 ▲ Manganeseμg/l 1Sampled Mar 2026 ≤ 50 1 Leadμg/l Not reported ≤ 10 — Seleniumμg/l 0.5Sampled Mar 2026 ≤ 10 0.5 Sodiummg/l 6.5Sampled Mar 2026 ≤ 200 6.5
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 3.28Sampled Mar 2026 ≤ 100 0.16
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 0Sampled Mar 2026 ≤ 0.5 0
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 0.001Sampled Mar 2026 No limit 0.001 PFOSug/L 0.001Sampled Mar 2026 No limit 0.001 PFNAug/L 0.001Sampled Mar 2026 No limit 0.001 Total PFASug/L 0Sampled Mar 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 Jun 2026 No limit 0.015 Sulfatemg/l 21Sampled Jun 2026 No limit 21 Uraniumug/L 0.13Sampled Mar 2026 No limit 0.13
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.
