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LE MERLERAULT · Trun

SAUR FRANCE

Water safety

Water safety
ParameterUnfiltered tap waterAllowed rangeFiltered
Free Chlorinemg CL2/l0.09 (Near the limit)0.2 – 10.002
Total Chlorinemg CL2/l0.11No limit0.022

General

General
ParameterUnfiltered tap waterAllowed rangeFiltered
TemperatureC24No limit24
Hardnessmg CaCO3/l34880 – 459348
Hardness fF34.8No limit34.8
pH7.26.5 – 9.57.2
TurbidityNTU0.2≤ 40.02
ConductivityμS / cm707≤ 2,500707
TDSmg/l452.5estimated0 – 1,199452.5
Alkalinitymg CaCO3/l299No limit299
Bicarbonatemg HCO3/l359Sampled May 2025No limit359

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 May 2025≤ 500.5
Fluoridemg F/l0.16Sampled May 2025≤ 1.50.049
Mercuryμg Hg/l0.05Sampled May 2025≤ 10.005
Nitritesmg NO2/l0.01≤ 0.50.004
Nitratesmg NO3/l8.8≤ 502.64

Minerals

Minerals
ParameterUnfiltered tap waterAllowed rangeFiltered
Magnesiummg/l4.2Sampled May 2025No limit4.2
Calciummg/l140Sampled May 2025No limit140
Potassiummg/l3.4Sampled May 2025No limit3.4
Chloridemg/l17≤ 25017

Metals

Metals
ParameterUnfiltered tap waterAllowed rangeFiltered
Aluminiumμg/l2Sampled May 2025≤ 2002
Antimonyμg/l0.5Sampled Jul 2025≤ 50.5
Arsenicμg/l0.25Sampled May 2025≤ 100.13
Bariumμg/l150Sampled May 2025≤ 1,000150
Cadmiumμg/l0.03Sampled Jul 2025≤ 50.03
Chromiumμg/l1Sampled Jul 2025≤ 501
Ironμg/l1Sampled Jul 2025≤ 2001
Manganeseμg/l1Sampled May 2025≤ 501
Leadμg/lNot reported≤ 10—
Seleniumμg/l0.5Sampled May 2025≤ 100.5
Sodiummg/l8.4Sampled May 2025≤ 2008.4

Chlorine by-products

Chlorine by-products
ParameterUnfiltered tap waterAllowed rangeFiltered
Trichloroethyleneμg/l0.05Sampled May 2025No limit0.003
Total Trihalomethanesμg/l7.19Sampled Apr 2026≤ 1000.36

Pesticides

Pesticides
ParameterUnfiltered tap waterAllowed rangeFiltered
Heptachlorug/L0.005Sampled May 2025≤ 0.40.005
Total pesticidesug/L0.012Sampled May 2025≤ 0.50.012

Herbicides

Herbicides
ParameterUnfiltered tap waterAllowed rangeFiltered
D 2 4ug/L0.02Sampled May 2025≤ 700.02
Atrazineug/L0.01Sampled May 2025≤ 30.01

Perfluorinated chemicals

Perfluorinated chemicals
ParameterUnfiltered tap waterAllowed rangeFiltered
PFOAug/L0.001Sampled May 2025No limit0.001
PFOSug/L0.001Sampled May 2025No limit0.001
PFNAug/L0.001Sampled May 2025No limit0.001
Total PFASug/L0Sampled May 2025≤ 0.10
PFAS 4ng/lNot reportedNo limit—
PFAS 21ng/lNot reportedNo limit—

Other

Other
ParameterUnfiltered tap waterAllowed rangeFiltered
Ammoniamg/l0.05No limit0.015
Sulfatemg/l43No limit43

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.