← Back to summary See all parameters MARCOLLIN RESEAU · Saint-Barthélemy
CC BIÈVRE ISÈRE
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.08 ● (Near the limit) 0.2 – 1 0.002 ▲ Total Chlorinemg CL2/l 0.13 No limit 0.026
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 23.6 No limit 23.6 Hardnessmg CaCO3/l 252 80 – 459 252 Hardness fF 25.2 No limit 25.2 pH 7.5 6.5 – 9.5 7.5 TurbidityNTU 0.76 ≤ 4 0.076 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 554 ≤ 2,500 554 TDSmg/l 354.6estimated 0 – 1,199 354.6 Alkalinitymg CaCO3/l 278 No limit 278
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 10Sampled Apr 2026 ≤ 50 0.5 Fluoridemg F/l 0.05Sampled Apr 2026 ≤ 1.5 0.015 Mercuryμg Hg/l 0.01Sampled Apr 2026 ≤ 1 0.001 Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 28.7 ≤ 50 8.61
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 2.2Sampled Apr 2026 No limit 2.2 Calciummg/l 107.9Sampled Apr 2026 No limit 107.9 Potassiummg/l 1.2Sampled Apr 2026 No limit 1.2 Chloridemg/l 13 ≤ 250 13
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 10Sampled Apr 2026 ≤ 200 10 Antimonyμg/l 1Sampled Apr 2026 ≤ 5 1 Arsenicμg/l 2Sampled Apr 2026 ≤ 10 1 Bariumμg/l 24Sampled Apr 2026 ≤ 1,000 24 Cadmiumμg/l 1Sampled Apr 2026 ≤ 5 1 Chromiumμg/l 5Sampled Apr 2026 ≤ 50 5 Copperμg/l 93Sampled Apr 2026 ≤ 2,000 4.65 Ironμg/l 10Sampled Apr 2026 ≤ 200 10 Manganeseμg/l 10Sampled Apr 2026 ≤ 50 10 Leadμg/l 2Sampled Apr 2026 ≤ 10 0.1 Nickelμg/l 5Sampled Apr 2026 ≤ 20 5 Seleniumμg/l 2Sampled Apr 2026 ≤ 10 2 Sodiummg/l 6.6Sampled Apr 2026 ≤ 200 6.6
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.1Sampled Apr 2026 No limit 0.005 Total Trihalomethanesμg/l 2.47Sampled Jan 2025 ≤ 100 0.12
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Apr 2026 ≤ 0.4 0.005 Total pesticidesug/L 0.078Sampled Apr 2026 ≤ 0.5 0.078
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Apr 2026 ≤ 70 0.02 Atrazineug/L 0.005Sampled Apr 2026 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered PFOAug/L 0.003Sampled Apr 2026 No limit 0.003 PFOSug/L 0.001Sampled Apr 2026 No limit 0.001 PFNAug/L 0.001Sampled Apr 2026 No limit 0.001 Total PFASug/L 0.006Sampled Apr 2026 ≤ 0.1 0.001 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 11.2 No limit 11.2 Uraniumug/L 10Sampled Apr 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.
