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COGNET RESEAU · Saint-Pierre-de-Méaroz

MAIRIE DE COGNET

Water safety

Water safety
ParameterUnfiltered tap waterAllowed rangeFiltered
Free Chlorinemg CL2/l0.05 (Near the limit)0.2 – 10.001
Total Chlorinemg CL2/l0.05No limit0.01

General

General
ParameterUnfiltered tap waterAllowed rangeFiltered
TemperatureC23No limit23
Hardnessmg CaCO3/l227.580 – 459227.5
Hardness fF22.8No limit22.8
pH7.86.5 – 9.57.8
TurbidityNTU0.12≤ 40.012
ColorColor Units5≤ 155
ConductivityμS / cm507≤ 2,500507
TDSmg/l324.5estimated0 – 1,199324.5
Alkalinitymg CaCO3/l215.5No limit215.5

Pathogens

Pathogens
ParameterUnfiltered tap waterAllowed rangeFiltered
ClostridiumUFC/100ml0≤ 00
eColiUFC/100ml0≤ 00
BacteriasNMP/100ml0≤ 00
EnterococcusUFC/100ml0≤ 00

Chemical parameters

Chemical parameters
ParameterUnfiltered tap waterAllowed rangeFiltered
Cyanide totalμg CN/l10≤ 500.5
Fluoridemg F/l0.1≤ 1.50.03
Mercuryμg Hg/l0.01≤ 10.001
Nitritesmg NO2/l0.01≤ 0.50.004
Nitratesmg NO3/l0.5≤ 500.15

Minerals

Minerals
ParameterUnfiltered tap waterAllowed rangeFiltered
Magnesiummg/l17.5No limit17.5
Calciummg/l62.2No limit62.2
Potassiummg/l1No limit1
Chloridemg/l11.4≤ 25011.4

Metals

Metals
ParameterUnfiltered tap waterAllowed rangeFiltered
Aluminiumμg/l10≤ 20010
Antimonyμg/l1≤ 51
Arsenicμg/l2≤ 101
Bariumμg/l71≤ 1,00071
Cadmiumμg/l1≤ 51
Chromiumμg/l5≤ 505
Copperμg/l19≤ 2,0000.95
Ironμg/l10≤ 20010
Manganeseμg/l10≤ 5010
Leadμg/l2≤ 100.1
Nickelμg/l5≤ 205
Seleniumμg/l2≤ 102
Sodiummg/l13.7≤ 20013.7

Chlorine by-products

Chlorine by-products
ParameterUnfiltered tap waterAllowed rangeFiltered
Trichloroethyleneμg/l0.1No limit0.005

Pesticides

Pesticides
ParameterUnfiltered tap waterAllowed rangeFiltered
Heptachlorug/L0.005≤ 0.40.005
Total pesticidesug/L0.5 (Near the limit)≤ 0.50.5

Herbicides

Herbicides
ParameterUnfiltered tap waterAllowed rangeFiltered
D 2 4ug/L0.02≤ 700.02
Atrazineug/L0.005≤ 30.005

Perfluorinated chemicals

Perfluorinated chemicals
ParameterUnfiltered tap waterAllowed rangeFiltered
PFOAug/L0.001No limit0.001
PFOSug/L0.001No limit0.001
PFNAug/L0.001No limit0.001
Total PFASug/L0.029≤ 0.10.003
PFAS 4ng/lNot reportedNo limit—
PFAS 21ng/lNot reportedNo limit—

Other

Other
ParameterUnfiltered tap waterAllowed rangeFiltered
Ammoniamg/l0.01No limit0.003
Sulfatemg/l55No limit55
Uraniumug/L10No limit10

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.