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RESERVOIR DE TREIZE VENTS · Grues

SAUR

Water safety

Water safety
ParameterUnfiltered tap waterAllowed rangeFiltered
Free Chlorinemg CL2/l0.13 (Near the limit)0.2 – 10.003
Total Chlorinemg CL2/l0.19No limit0.038

General

General
ParameterUnfiltered tap waterAllowed rangeFiltered
TemperatureC16.7No limit16.7
Hardnessmg CaCO3/l20680 – 459206
Hardness fF20.6No limit20.6
pH7.86.5 – 9.57.8
TurbidityNTU0.29≤ 40.029
ColorColor Units2≤ 152
ConductivityμS / cm676≤ 2,500676
TDSmg/l432.6estimated0 – 1,199432.6
Alkalinitymg CaCO3/l243No limit243
Bicarbonatemg HCO3/l289.1Sampled Apr 2026No limit289.1

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/l0.5Sampled Apr 2026≤ 500.025
Fluoridemg F/l0.13Sampled Apr 2026≤ 1.50.039
Mercuryμg Hg/l0.015Sampled Apr 2026≤ 10.002
Nitritesmg NO2/l0.01≤ 0.50.004
Nitratesmg NO3/l33≤ 509.9

Minerals

Minerals
ParameterUnfiltered tap waterAllowed rangeFiltered
Magnesiummg/l9.51No limit9.51
Calciummg/l66.9No limit66.9
Potassiummg/l1.58Sampled Apr 2026No limit1.58
Chloridemg/l35≤ 25035

Metals

Metals
ParameterUnfiltered tap waterAllowed rangeFiltered
Aluminiumμg/l10Sampled Apr 2026≤ 20010
Antimonyμg/l0.5Sampled Apr 2026≤ 50.5
Arsenicμg/l0.5Sampled Apr 2026≤ 100.25
Bariumμg/l28Sampled Apr 2026≤ 1,00028
Cadmiumμg/l0.5Sampled Apr 2026≤ 50.5
Chromiumμg/l0.5Sampled Apr 2026≤ 500.5
Ironμg/l10≤ 20010
Manganeseμg/l5≤ 505
Leadμg/lNot reported≤ 10—
Seleniumμg/l0.5Sampled Apr 2026≤ 100.5
Sodiummg/l73Sampled Apr 2026≤ 20073

Chlorine by-products

Chlorine by-products
ParameterUnfiltered tap waterAllowed rangeFiltered
Trichloroethyleneμg/l0.2Sampled Apr 2026No limit0.01
Total Trihalomethanesμg/l5Sampled Sept 2025≤ 1000.25

Pesticides

Pesticides
ParameterUnfiltered tap waterAllowed rangeFiltered
Heptachlorug/L0.002Sampled Apr 2026≤ 0.40.002
Total pesticidesug/L0.068Sampled Apr 2026≤ 0.50.068

Herbicides

Herbicides
ParameterUnfiltered tap waterAllowed rangeFiltered
D 2 4ug/L0.02Sampled Apr 2026≤ 700.02
Atrazineug/L0.01Sampled Apr 2026≤ 30.01

Perfluorinated chemicals

Perfluorinated chemicals
ParameterUnfiltered tap waterAllowed rangeFiltered
PFOAug/L0.002Sampled Apr 2026No limit0.002
PFOSug/L0.002Sampled Apr 2026No limit0.002
PFNAug/L0.005Sampled Apr 2026No limit0.005
Total PFASug/L0Sampled Apr 2026≤ 0.10
PFAS 4ng/lNot reportedNo limit—
PFAS 21ng/lNot reportedNo limit—

Other

Other
ParameterUnfiltered tap waterAllowed rangeFiltered
Ammoniamg/l0.01No limit0.003
Sulfatemg/l35No limit35
Uraniumug/L0.5Sampled Apr 2026No limit0.5

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.