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CROUTTES · Trun

SAUR FRANCE

Water safety

Water safety
ParameterUnfiltered tap waterAllowed rangeFiltered
Free Chlorinemg CL2/l0.05 (Near the limit)0.2 – 10.001
Total Chlorinemg CL2/l0.06No limit0.012

General

General
ParameterUnfiltered tap waterAllowed rangeFiltered
TemperatureC23No limit23
Hardnessmg CaCO3/l32780 – 459327
Hardness fF32.7No limit32.7
pH7.36.5 – 9.57.3
TurbidityNTU0.2≤ 40.02
ConductivityμS / cm669≤ 2,500669
TDSmg/l428.2estimated0 – 1,199428.2
Alkalinitymg CaCO3/l302No limit302
Bicarbonatemg HCO3/l364Sampled Jan 2026No limit364

Pathogens

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

Chemical parameters

Chemical parameters
ParameterUnfiltered tap waterAllowed rangeFiltered
Cyanide totalμg CN/l10Sampled Jan 2026≤ 500.5
Fluoridemg F/l0.074Sampled Jan 2026≤ 1.50.022
Mercuryμg Hg/l0.05Sampled Jan 2026≤ 10.005
Nitritesmg NO2/l0.01≤ 0.50.004
Nitratesmg NO3/l14≤ 504.2

Minerals

Minerals
ParameterUnfiltered tap waterAllowed rangeFiltered
Magnesiummg/l7.5Sampled Jan 2026No limit7.5
Calciummg/l120Sampled Jan 2026No limit120
Potassiummg/l1.9Sampled Jan 2026No limit1.9
Chloridemg/l16≤ 25016

Metals

Metals
ParameterUnfiltered tap waterAllowed rangeFiltered
Aluminiumμg/l2Sampled Jan 2026≤ 2002
Antimonyμg/l0.5Sampled Jan 2026≤ 50.5
Arsenicμg/l0.25Sampled Jan 2026≤ 100.13
Bariumμg/l14Sampled Jan 2026≤ 1,00014
Cadmiumμg/l0.025Sampled Jan 2026≤ 50.025
Chromiumμg/l1Sampled Jan 2026≤ 501
Ironμg/l1Sampled Jan 2026≤ 2001
Manganeseμg/l1Sampled Jan 2026≤ 501
Leadμg/lNot reported≤ 10—
Seleniumμg/l0.5Sampled Jan 2026≤ 100.5
Sodiummg/l7.8Sampled Jan 2026≤ 2007.8

Chlorine by-products

Chlorine by-products
ParameterUnfiltered tap waterAllowed rangeFiltered
Trichloroethyleneμg/l0.05Sampled Jan 2026No limit0.003
Total Trihalomethanesμg/l7.45Sampled Jun 2026≤ 1000.37

Haloacetic acids

Haloacetic acids
ParameterUnfiltered tap waterAllowed rangeFiltered
Total haloacetic acidsμg/l0.5Sampled Jan 2026≤ 600.025

Pesticides

Pesticides
ParameterUnfiltered tap waterAllowed rangeFiltered
Heptachlorug/L0.005Sampled Jan 2026≤ 0.40.005
Total pesticidesug/L0.02Sampled Jan 2026≤ 0.50.02

Herbicides

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

Perfluorinated chemicals

Perfluorinated chemicals
ParameterUnfiltered tap waterAllowed rangeFiltered
PFOAug/L0.001Sampled Jan 2026No limit0.001
PFOSug/L0.001Sampled Jan 2026No limit0.001
PFNAug/L0.001Sampled Jan 2026No limit0.001
Total PFASug/L0Sampled Jan 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/l17No limit17
Uraniumug/L0.6Sampled Jan 2026No limit0.6

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.