← Back to summary See all parameters CHEMÉRÉ-LE-ROI · Saint-Georges-le-Fléchard
RÉGIE DES EAUX DES COËVRONS
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 0.21 No limit 0.042
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 24.2 No limit 24.2 Hardnessmg CaCO3/l 329 80 – 459 329 Hardness fF 32.9 No limit 32.9 pH 7.5 6.5 – 9.5 7.5 TurbidityNTU 0.3 ≤ 4 0.03 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 716 ≤ 2,500 716 TDSmg/l 458.2estimated 0 – 1,199 458.2 Alkalinitymg CaCO3/l 285 No limit 285 Bicarbonatemg HCO3/l 356Sampled Oct 2025 No limit 356
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 5Sampled Oct 2025 ≤ 50 0.25 Fluoridemg F/l 0.05Sampled Oct 2025 ≤ 1.5 0.015 Mercuryμg Hg/l 0.015Sampled Oct 2025 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 34 ≤ 50 10.2
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 6.2Sampled Oct 2025 No limit 6.2 Calciummg/l 132Sampled Oct 2025 No limit 132 Potassiummg/l 3.5Sampled Oct 2025 No limit 3.5 Chloridemg/l 25.4 ≤ 250 25.4
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 2Sampled Oct 2025 ≤ 200 2 Arsenicμg/l 0.2Sampled Jun 2026 ≤ 10 0.1 Bariumμg/l 24Sampled Oct 2025 ≤ 1,000 24 Copperμg/l 26.9 ≤ 2,000 1.35 Ironμg/l 2Sampled Oct 2025 ≤ 200 2 Manganeseμg/l 0.2Sampled Oct 2025 ≤ 50 0.2 Leadμg/l 1.5 ≤ 10 0.075 Nickelμg/l 0.5 ≤ 20 0.5 Seleniumμg/l 0.5Sampled Oct 2025 ≤ 10 0.5 Sodiummg/l 11.1Sampled Oct 2025 ≤ 200 11.1
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Oct 2025 No limit 0.005 Total Trihalomethanesμg/l 20 ≤ 100 1
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 5.3 ≤ 60 0.27
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Chlordaneug/L 0Sampled Oct 2025 ≤ 2 0 Heptachlorug/L 0.001Sampled Oct 2025 ≤ 0.4 0.001 Total pesticidesug/L 0.029Sampled Nov 2025 ≤ 0.5 0.029
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Oct 2025 ≤ 70 0.02 Atrazineug/L 0.01Sampled Oct 2025 ≤ 3 0.01
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.001Sampled Oct 2025 No limit 0.001 PFOSug/L 0.002Sampled Oct 2025 No limit 0.002 PFNAug/L 0.001Sampled Oct 2025 No limit 0.001 Total PFASug/L 0Sampled Oct 2025 ≤ 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 30.8 No limit 30.8
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.
