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SIEVO PUITS COURCHAPON · Roset-Fluans

SYNDICAT DES EAUX DU VAL DE L'OGNON (SIEVO)

Water safety

Water safety
ParameterUnfiltered tap waterAllowed rangeFiltered
Free Chlorinemg CL2/l0.1 (Near the limit)0.2 – 10.002
Total Chlorinemg CL2/l0.15No limit0.03

General

General
ParameterUnfiltered tap waterAllowed rangeFiltered
TemperatureC17.6No limit17.6
Hardnessmg CaCO3/l21780 – 459217
Hardness fF21.7No limit21.7
pH7.66.5 – 9.57.6
TurbidityNTU0.2≤ 40.02
ConductivityμS / cm422≤ 2,500422
TDSmg/l270.1estimated0 – 1,199270.1
Alkalinitymg CaCO3/l193No limit193
Bicarbonatemg HCO3/l236Sampled Jun 2025No limit236

Pathogens

Pathogens
ParameterUnfiltered tap waterAllowed rangeFiltered
ClostridiumUFC/100ml0Sampled Mar 2025≤ 00
eColiUFC/100ml0≤ 00
BacteriasNMP/100ml0≤ 00
EnterococcusUFC/100ml0≤ 00

Chemical parameters

Chemical parameters
ParameterUnfiltered tap waterAllowed rangeFiltered
Cyanide totalμg CN/l10Sampled Jun 2025≤ 500.5
Fluoridemg F/l0.14Sampled Jun 2025≤ 1.50.042
Mercuryμg Hg/l0.015Sampled Jun 2025≤ 10.002
Nitritesmg NO2/l0.01≤ 0.50.004
Nitratesmg NO3/l4≤ 501.2

Minerals

Minerals
ParameterUnfiltered tap waterAllowed rangeFiltered
Magnesiummg/l6.25Sampled Jun 2025No limit6.25
Calciummg/l74.6Sampled Jun 2025No limit74.6
Potassiummg/l1.45Sampled Jun 2025No limit1.45
Chloridemg/l7.6≤ 2507.6

Metals

Metals
ParameterUnfiltered tap waterAllowed rangeFiltered
Aluminiumμg/l10Sampled Jun 2025≤ 20010
Antimonyμg/l1Sampled Jun 2025≤ 51
Arsenicμg/l1Sampled Jun 2025≤ 100.5
Bariumμg/l33Sampled Jun 2025≤ 1,00033
Cadmiumμg/l1Sampled Jun 2025≤ 51
Chromiumμg/l2Sampled Jun 2025≤ 502
Copperμg/l108Sampled Jun 2025≤ 2,0005.4
Ironμg/l10≤ 20010
Manganeseμg/l2≤ 502
Leadμg/l3.5Sampled Jun 2025≤ 100.18
Nickelμg/l2Sampled Jun 2025≤ 202
Seleniumμg/l1Sampled Jun 2025≤ 101
Sodiummg/l5.84Sampled Jun 2025≤ 2005.84

Chlorine by-products

Chlorine by-products
ParameterUnfiltered tap waterAllowed rangeFiltered
Trichloroethyleneμg/l0.1Sampled Jun 2025No limit0.005
Total Trihalomethanesμg/l13.6Sampled Jun 2025≤ 1000.68

Pesticides

Pesticides
ParameterUnfiltered tap waterAllowed rangeFiltered
Heptachlorug/L0.005Sampled Jun 2025≤ 0.40.005
Total pesticidesug/L0.007Sampled Jun 2025≤ 0.50.007

Herbicides

Herbicides
ParameterUnfiltered tap waterAllowed rangeFiltered
D 2 4ug/L0.02Sampled Jun 2025≤ 700.02
Atrazineug/L0.005Sampled Jun 2025≤ 30.005

Perfluorinated chemicals

Perfluorinated chemicals
ParameterUnfiltered tap waterAllowed rangeFiltered
PFOAug/L0.001Sampled Jun 2025No limit0.001
PFOSug/L0.001Sampled Jun 2025No limit0.001
PFNAug/L0.001Sampled Jun 2025No limit0.001
Total PFASug/L0.001Sampled Jun 2025≤ 0.10
PFAS 4ng/lNot reportedNo limit—
PFAS 21ng/lNot reportedNo limit—

Other

Other
ParameterUnfiltered tap waterAllowed rangeFiltered
Ammoniamg/l0.01No limit0.003
Sulfatemg/l13No limit13

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.