LES ARNAUDS - ROUAC - MARCIEU · Saint-Pierre-de-Méaroz
MAIRIE DE MARCIEU
Water safety
Water safety
Parameter
Unfiltered tap water
Allowed range
Filtered
Free Chlorinemg CL2/l
0.05 ● (Near the limit)
0.2 – 1
0.001 ▲
Total Chlorinemg CL2/l
0.05
No limit
0.01
General
General
Parameter
Unfiltered tap water
Allowed range
Filtered
TemperatureC
18.4
No limit
18.4
Hardnessmg CaCO3/l
257.5
80 – 459
257.5
Hardness fF
25.8
No limit
25.8
pH
7.5
6.5 – 9.5
7.5
TurbidityNTU
0.11
≤ 4
0.011
ColorColor Units
5
≤ 15
5
ConductivityμS / cm
508
≤ 2,500
508
TDSmg/l
325.1estimated
0 – 1,199
325.1
Alkalinitymg CaCO3/l
182.5
No limit
182.5
Pathogens
Pathogens
Parameter
Unfiltered tap water
Allowed range
Filtered
ClostridiumUFC/100ml
0
≤ 0
0
eColiUFC/100ml
0
≤ 0
0
BacteriasNMP/100ml
0
≤ 0
0
EnterococcusUFC/100ml
0
≤ 0
0
Chemical parameters
Chemical parameters
Parameter
Unfiltered tap water
Allowed range
Filtered
Cyanide totalμg CN/l
10Sampled Aug 2025
≤ 50
0.5
Fluoridemg F/l
0.07Sampled Aug 2025
≤ 1.5
0.021
Mercuryμg Hg/l
0.01Sampled Aug 2025
≤ 1
0.001
Nitritesmg NO2/l
0.01
≤ 0.5
0.004
Nitratesmg NO3/l
0.9
≤ 50
0.27
Minerals
Minerals
Parameter
Unfiltered tap water
Allowed range
Filtered
Magnesiummg/l
25Sampled Aug 2025
No limit
25
Calciummg/l
67.7Sampled Aug 2025
No limit
67.7
Potassiummg/l
0.4Sampled Aug 2025
No limit
0.4
Chloridemg/l
2.4
≤ 250
2.4
Metals
Metals
Parameter
Unfiltered tap water
Allowed range
Filtered
Aluminiumμg/l
10Sampled Aug 2025
≤ 200
10
Antimonyμg/l
1Sampled Apr 2025
≤ 5
1
Arsenicμg/l
2Sampled Aug 2025
≤ 10
1
Bariumμg/l
10Sampled Aug 2025
≤ 1,000
10
Cadmiumμg/l
1Sampled Apr 2025
≤ 5
1
Chromiumμg/l
5Sampled Apr 2025
≤ 50
5
Copperμg/l
14Sampled Apr 2025
≤ 2,000
0.7
Ironμg/l
10Sampled Aug 2025
≤ 200
10
Manganeseμg/l
10Sampled Aug 2025
≤ 50
10
Leadμg/l
2Sampled Apr 2025
≤ 10
0.1
Nickelμg/l
5Sampled Apr 2025
≤ 20
5
Seleniumμg/l
2Sampled Aug 2025
≤ 10
2
Sodiummg/l
3Sampled Aug 2025
≤ 200
3
Chlorine by-products
Chlorine by-products
Parameter
Unfiltered tap water
Allowed range
Filtered
Trichloroethyleneμg/l
0.1Sampled Aug 2025
No limit
0.005
Total Trihalomethanesμg/l
0.5Sampled Aug 2025
≤ 100
0.025
Pesticides
Pesticides
Parameter
Unfiltered tap water
Allowed range
Filtered
Heptachlorug/L
0.005Sampled Aug 2025
≤ 0.4
0.005
Total pesticidesug/L
0.5 ● (Near the limit)Sampled Aug 2025
≤ 0.5
0.5 ●
Herbicides
Herbicides
Parameter
Unfiltered tap water
Allowed range
Filtered
D 2 4ug/L
0.02Sampled Aug 2025
≤ 70
0.02
Atrazineug/L
0.005Sampled Aug 2025
≤ 3
0.005
Perfluorinated chemicals
Perfluorinated chemicals
Parameter
Unfiltered tap water
Allowed range
Filtered
PFOAug/L
0.001Sampled Aug 2025
No limit
0.001
PFOSug/L
0.001Sampled Aug 2025
No limit
0.001
PFNAug/L
0.001Sampled Aug 2025
No limit
0.001
Total PFASug/L
0.029Sampled Aug 2025
≤ 0.1
0.003
PFAS 4ng/l
Not reported
No limit
—
PFAS 21ng/l
Not reported
No limit
—
Other
Other
Parameter
Unfiltered tap water
Allowed range
Filtered
Ammoniamg/l
0.04
No limit
0.012
Sulfatemg/l
116
No limit
116
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.
