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VAL AU PERCHE (COSTIERS) · Vaunoise

SAUR FRANCE

Water safety

Water safety
ParameterUnfiltered tap waterAllowed rangeFiltered
Free Chlorinemg CL2/l0.920.2 – 10.018
Total Chlorinemg CL2/l0.99No limit0.2

General

General
ParameterUnfiltered tap waterAllowed rangeFiltered
TemperatureC20No limit20
Hardnessmg CaCO3/l32580 – 459325
Hardness fF32.5No limit32.5
pH7.66.5 – 9.57.6
TurbidityNTU0.2≤ 40.02
ConductivityμS / cm681≤ 2,500681
TDSmg/l435.8estimated0 – 1,199435.8
Alkalinitymg CaCO3/l283No limit283
Bicarbonatemg HCO3/l334Sampled Jun 2026No limit334

Pathogens

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

Chemical parameters

Chemical parameters
ParameterUnfiltered tap waterAllowed rangeFiltered
Cyanide totalμg CN/l10Sampled Jun 2026≤ 500.5
Fluoridemg F/l0.15Sampled Jun 2026≤ 1.50.044
Mercuryμg Hg/l0.05Sampled Jun 2026≤ 10.005
Nitritesmg NO2/l0.01≤ 0.50.004
Nitratesmg NO3/l14≤ 504.2

Minerals

Minerals
ParameterUnfiltered tap waterAllowed rangeFiltered
Magnesiummg/l6.8Sampled Jun 2026No limit6.8
Calciummg/l120Sampled Jun 2026No limit120
Potassiummg/l5.1Sampled Jun 2026No limit5.1
Chloridemg/l21≤ 25021

Metals

Metals
ParameterUnfiltered tap waterAllowed rangeFiltered
Aluminiumμg/l2Sampled Jun 2026≤ 2002
Antimonyμg/l0.5Sampled Jun 2026≤ 50.5
Arsenicμg/l0.72Sampled Jun 2026≤ 100.36
Bariumμg/l1.3Sampled Jun 2026≤ 1,0001.3
Cadmiumμg/l0.025Sampled Jun 2026≤ 50.025
Chromiumμg/l1Sampled Jun 2026≤ 501
Ironμg/l1.2≤ 2001.2
Manganeseμg/l1Sampled Jun 2026≤ 501
Leadμg/lNot reported≤ 10—
Seleniumμg/l0.5Sampled Jun 2026≤ 100.5
Sodiummg/l9.2Sampled Jun 2026≤ 2009.2

Chlorine by-products

Chlorine by-products
ParameterUnfiltered tap waterAllowed rangeFiltered
Trichloroethyleneμg/l0.05Sampled Jun 2026No limit0.003
Total Trihalomethanesμg/l7.09≤ 1000.35

Haloacetic acids

Haloacetic acids
ParameterUnfiltered tap waterAllowed rangeFiltered
Total haloacetic acidsμg/l1.6Sampled Jun 2026≤ 600.08

Pesticides

Pesticides
ParameterUnfiltered tap waterAllowed rangeFiltered
Heptachlorug/L0.005Sampled Jun 2026≤ 0.40.005
Total pesticidesug/L0.06Sampled Jun 2026≤ 0.50.06

Herbicides

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

Perfluorinated chemicals

Perfluorinated chemicals
ParameterUnfiltered tap waterAllowed rangeFiltered
PFOAug/L0.001Sampled Jun 2026No limit0.001
PFOSug/L0.001Sampled Jun 2026No limit0.001
PFNAug/L0.001Sampled Jun 2026No limit0.001
Total PFASug/L0Sampled Jun 2026≤ 0.10
PFAS 4ng/lNot reportedNo limit—
PFAS 21ng/lNot reportedNo limit—

Other

Other
ParameterUnfiltered tap waterAllowed rangeFiltered
Ammoniamg/l0.05No limit0.015
Sulfatemg/l34No limit34
Uraniumug/L0.24Sampled Jun 2026No limit0.24

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.