SAINT PIERRE PRINCIPAL · Saint-Pierre-de-Chartreuse
SAUR
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
0.07
No limit
0.014
General
General
Parameter
Unfiltered tap water
Allowed range
Filtered
TemperatureC
15.3
No limit
15.3
Hardnessmg CaCO3/l
110.8
80 – 459
110.8
Hardness fF
11.1
No limit
11.1
pH
7.6
6.5 – 9.5
7.6
TurbidityNTU
0.32
≤ 4
0.032
ColorColor Units
5
≤ 15
5
ConductivityμS / cm
215
≤ 2,500
215
TDSmg/l
137.6estimated
0 – 1,199
137.6
Alkalinitymg CaCO3/l
111.5
No limit
111.5
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 Jun 2025
≤ 50
0.5
Fluoridemg F/l
0.05Sampled Jun 2025
≤ 1.5
0.015
Mercuryμg Hg/l
0.01Sampled Jun 2025
≤ 1
0.001
Nitritesmg NO2/l
0.01
≤ 0.5
0.004
Nitratesmg NO3/l
1.1
≤ 50
0.33
Minerals
Minerals
Parameter
Unfiltered tap water
Allowed range
Filtered
Magnesiummg/l
2.1Sampled Jun 2025
No limit
2.1
Calciummg/l
39.7Sampled Jun 2025
No limit
39.7
Potassiummg/l
0.1Sampled Jun 2025
No limit
0.1
Chloridemg/l
0.8
≤ 250
0.8
Metals
Metals
Parameter
Unfiltered tap water
Allowed range
Filtered
Aluminiumμg/l
10Sampled Jun 2025
≤ 200
10
Antimonyμg/l
1Sampled Sept 2025
≤ 5
1
Arsenicμg/l
2Sampled Jun 2025
≤ 10
1
Bariumμg/l
10Sampled Jun 2025
≤ 1,000
10
Cadmiumμg/l
1Sampled Sept 2025
≤ 5
1
Chromiumμg/l
5Sampled Sept 2025
≤ 50
5
Copperμg/l
311Sampled Sept 2025
≤ 2,000
15.6
Ironμg/l
10Sampled Jun 2025
≤ 200
10
Manganeseμg/l
10Sampled Jun 2025
≤ 50
10
Leadμg/l
2Sampled Sept 2025
≤ 10
0.1
Nickelμg/l
5Sampled Sept 2025
≤ 20
5
Seleniumμg/l
2Sampled Jun 2025
≤ 10
2
Sodiummg/l
0.3Sampled Jun 2025
≤ 200
0.3
Chlorine by-products
Chlorine by-products
Parameter
Unfiltered tap water
Allowed range
Filtered
Trichloroethyleneμg/l
0.1Sampled Jun 2025
No limit
0.005
Total Trihalomethanesμg/l
8.06Sampled Jun 2025
≤ 100
0.4
Pesticides
Pesticides
Parameter
Unfiltered tap water
Allowed range
Filtered
Heptachlorug/L
0.005Sampled Jun 2025
≤ 0.4
0.005
Total pesticidesug/L
0.5 ● (Near the limit)Sampled Jun 2025
≤ 0.5
0.5 ●
Herbicides
Herbicides
Parameter
Unfiltered tap water
Allowed range
Filtered
D 2 4ug/L
0.02Sampled Jun 2025
≤ 70
0.02
Atrazineug/L
0.005Sampled Jun 2025
≤ 3
0.005
Perfluorinated chemicals
Perfluorinated chemicals
Parameter
Unfiltered tap water
Allowed range
Filtered
PFOAug/L
0.001Sampled Jun 2025
No limit
0.001
PFOSug/L
0.001Sampled Jun 2025
No limit
0.001
PFNAug/L
0.001Sampled Jun 2025
No limit
0.001
Total PFASug/L
0.028Sampled Jun 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
0.01
No limit
0.003
Sulfatemg/l
1.9
No limit
1.9
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.
