← Back to summary See all parameters RESEAU OUAKI · Saint-Louis
RUNEO
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 21.2 No limit 21.2 Hardnessmg CaCO3/l 79 ● (Near the limit) 80 – 459 79 ● Hardness fF 7.9 No limit 7.9 pH 8.4 6.5 – 9.5 8.4 TurbidityNTU 0.23 ≤ 4 0.023 ColorColor Units 10 ≤ 15 10 ConductivityμS / cm 215 ≤ 2,500 215 TDSmg/l 137.6estimated 0 – 1,199 137.6 Alkalinitymg CaCO3/l 92 No limit 92 Bicarbonatemg HCO3/l 117.8Sampled Oct 2025 No limit 117.8
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 0.1Sampled Oct 2025 ≤ 1.5 0.03 Mercuryμg Hg/l 0.015Sampled Oct 2025 ≤ 1 0.002 Nitritesmg NO2/l 0.05 ≤ 0.5 0.02 Nitratesmg NO3/l 2.4 ≤ 50 0.72
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 9Sampled Oct 2025 No limit 9 Calciummg/l 17Sampled Oct 2025 No limit 17 Potassiummg/l 1.8Sampled Oct 2025 No limit 1.8 Chloridemg/l 5.3 ≤ 250 5.3
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Aluminiumμg/l 30Sampled Oct 2025 ≤ 200 30 Antimonyμg/l 0.1Sampled Apr 2025 ≤ 5 0.1 Arsenicμg/l 0.3Sampled Oct 2025 ≤ 10 0.15 Bariumμg/l 2Sampled Oct 2025 ≤ 1,000 2 Cadmiumμg/l 0.2Sampled Apr 2025 ≤ 5 0.2 Chromiumμg/l 1.6Sampled Apr 2025 ≤ 50 1.6 Copperμg/l 0.2Sampled Apr 2025 ≤ 2,000 0.01 Ironμg/l 50 ≤ 200 50 Manganeseμg/l 9Sampled Oct 2025 ≤ 50 9 Leadμg/l 0.05Sampled Apr 2025 ≤ 10 0.003 Nickelμg/l 1.6Sampled Apr 2025 ≤ 20 1.6 Seleniumμg/l 0.3Sampled Oct 2025 ≤ 10 0.3 Sodiummg/l 15Sampled Oct 2025 ≤ 200 15
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Trichloroethyleneμg/l 0.2Sampled Oct 2025 No limit 0.01 Total Trihalomethanesμg/l 0Sampled Feb 2026 ≤ 100 0
Pesticides Pesticides Parameter Unfiltered tap water Allowed range Filtered Heptachlorug/L 0.005Sampled Oct 2025 ≤ 0.4 0.005 Total pesticidesug/L 0Sampled Oct 2025 ≤ 0.5 0
Herbicides Herbicides Parameter Unfiltered tap water Allowed range Filtered D 2 4ug/L 0.02Sampled Oct 2025 ≤ 70 0.02 Atrazineug/L 0.005Sampled Oct 2025 ≤ 3 0.005
Perfluorinated chemicals Perfluorinated chemicals Parameter Unfiltered tap water Allowed range Filtered Total PFASug/L Not reported ≤ 0.1 — 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 0.05 No limit 0.015 Sulfatemg/l 9.2 No limit 9.2
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.
