← Back to summary See all parameters LFA GRIMARD CHATELNEUF BOURG · Saint-Bonnet-le-Courreau
CA LOIRE FOREZ AGGLOMÉRATION
Water safety Water safety Parameter Unfiltered tap water Allowed range Filtered Free Chlorinemg CL2/l 0.3 0.2 – 1 0.006 ▲ Total Chlorinemg CL2/l 0.34 No limit 0.068
General General Parameter Unfiltered tap water Allowed range Filtered TemperatureC 24.3 No limit 24.3 Hardnessmg CaCO3/l 74.5 ● (Near the limit) 80 – 459 74.5 ● Hardness fF 7.45 No limit 7.45 pH 8.1 6.5 – 9.5 8.1 TurbidityNTU 0.1 ≤ 4 0.01 ColorColor Units 5 ≤ 15 5 ConductivityμS / cm 178 ≤ 2,500 178 TDSmg/l 113.9estimated 0 – 1,199 113.9 Alkalinitymg CaCO3/l 82.5 No limit 82.5
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 Mercuryμg Hg/l Not reported ≤ 1 — Nitritesmg NO2/l 0.01 ≤ 0.5 0.004 Nitratesmg NO3/l 4.8 ≤ 50 1.44
Minerals Minerals Parameter Unfiltered tap water Allowed range Filtered Magnesiummg/l 0.8 No limit 0.8 Calciummg/l 28.5 No limit 28.5 Chloridemg/l 2 ≤ 250 2
Metals Metals Parameter Unfiltered tap water Allowed range Filtered Antimonyμg/l 1Sampled Apr 2025 ≤ 5 1 Arsenicμg/l Not reported ≤ 10 — Cadmiumμg/l 1Sampled Apr 2025 ≤ 5 1 Chromiumμg/l 5Sampled Apr 2025 ≤ 50 5 Ironμg/l 69Sampled Apr 2025 ≤ 200 69 Leadμg/l Not reported ≤ 10 —
Chlorine by-products Chlorine by-products Parameter Unfiltered tap water Allowed range Filtered Total Trihalomethanesμg/l 14.1Sampled Apr 2026 ≤ 100 0.71
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 0.01 No limit 0.003 Sulfatemg/l 3 No limit 3
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.
