← Back to summary See all parameters VALENCAY BAUDRES · Bretagne
SYNDICAT DES EAUX DU BOISCHAUT NORD
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.11 ● (Near the limit) 0.2 – 1 0.002 ▲ Total Chlorinemg CL2/l 0.19 No limit 0.038
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 26 No limit 26 Hardnessmg CaCO3/l 325 80 – 459 325 Hardness fF 32.5 No limit 32.5 pH 7.5 6.5 – 9.5 7.5 TurbidityNTU 0.3 ≤ 4 0.03 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 753Sampled Oct 2025 ≤ 2,500 753 TDSmg/l 481.9Sampled Oct 2025 estimated 0 – 1,199 481.9 Alkalinitymg CaCO3/l 254 No limit 254 Bicarbonatemg HCO3/l 395Sampled Mar 2025 No limit 395
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 Mar 2026 ≤ 50 0.25 Fluoridemg F/l 0.15Sampled Mar 2026 ≤ 1.5 0.045 Mercuryμg Hg/l 0.015Sampled Mar 2026 ≤ 1 0.002 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 0.22 ≤ 50 0.066
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 10.9Sampled Mar 2026 No limit 10.9 Calciummg/l 116Sampled Mar 2026 No limit 116 Potassiummg/l 2.9Sampled Mar 2026 No limit 2.9 Chloridemg/l 34.1 ≤ 250 34.1
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 2Sampled Mar 2026 ≤ 200 2 Antimonyμg/l 0.2Sampled Mar 2026 ≤ 5 0.2 Arsenicμg/l 0.2Sampled Mar 2026 ≤ 10 0.1 Bariumμg/l 17Sampled Mar 2026 ≤ 1,000 17 Cadmiumμg/l 0.01Sampled Mar 2026 ≤ 5 0.01 Chromiumμg/l 0.7Sampled Mar 2026 ≤ 50 0.7 Copperμg/l 97.6 ≤ 2,000 4.88 Ironμg/l 2 ≤ 200 2 Manganeseμg/l 1Sampled Mar 2026 ≤ 50 1 Leadμg/l 4.3 ≤ 10 0.22 Nickelμg/l 2 ≤ 20 2 Sodiummg/l 14.3Sampled Mar 2026 ≤ 200 14.3
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Mar 2026 No limit 0.005 Total Trihalomethanesμg/l 0Sampled Mar 2026 ≤ 100 0
Haloacetic acids Haloacetic acids Parameter Unfiltered tap water Allowed range Filtered Total haloacetic acidsμg/l 0Sampled Mar 2026 ≤ 60 0
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.001Sampled Mar 2026 ≤ 0.4 0.001 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 0.002Sampled Mar 2026 No limit 0.002 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 0.01 No limit 0.003 Sulfatemg/l 83.7 No limit 83.7 Uraniumug/L 0.1Sampled Mar 2026 No limit 0.1
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.
