ST JULIEN L'ARS LA BERTINIERE · Savigny-Lévescault
EAUX DE VIENNE - SIVEER
Water safety
Water safety
Parameter
Unfiltered tap water
Allowed range
Filtered
Free Chlorinemg CL2/l
0.3
0.2 – 1
0.006 ▲
Total Chlorinemg CL2/l
0.4
No limit
0.08
General
General
Parameter
Unfiltered tap water
Allowed range
Filtered
TemperatureC
24
No limit
24
Hardnessmg CaCO3/l
290
80 – 459
290
Hardness fF
29
No limit
29
pH
7.2
6.5 – 9.5
7.2
TurbidityNTU
0.3
≤ 4
0.03
ColorColor Units
5Sampled Jan 2026
≤ 15
5
ConductivityμS / cm
642
≤ 2,500
642
TDSmg/l
410.9estimated
0 – 1,199
410.9
Alkalinitymg CaCO3/l
255
No limit
255
Bicarbonatemg HCO3/l
360Sampled Sept 2025
No limit
360
Pathogens
Pathogens
Parameter
Unfiltered tap water
Allowed range
Filtered
ClostridiumUFC/100ml
0Sampled Dec 2025
≤ 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
5Sampled Jan 2026
≤ 50
0.25
Fluoridemg F/l
0.1Sampled Jan 2026
≤ 1.5
0.03
Mercuryμg Hg/l
0.015Sampled Jan 2026
≤ 1
0.002
Nitritesmg NO2/l
0.01
≤ 0.5
0.004
Nitratesmg NO3/l
41 ● (Near the limit)
≤ 50
12.3
Minerals
Minerals
Parameter
Unfiltered tap water
Allowed range
Filtered
Magnesiummg/l
8.2Sampled Jan 2026
No limit
8.2
Calciummg/l
120Sampled Jan 2026
No limit
120
Potassiummg/l
1.1Sampled Jan 2026
No limit
1.1
Chloridemg/l
20
≤ 250
20
Metals
Metals
Parameter
Unfiltered tap water
Allowed range
Filtered
Aluminiumμg/l
20Sampled Jan 2026
≤ 200
20
Antimonyμg/l
0.5Sampled Jan 2026
≤ 5
0.5
Arsenicμg/l
0.2Sampled Jan 2026
≤ 10
0.1
Bariumμg/l
30Sampled Jan 2026
≤ 1,000
30
Cadmiumμg/l
0.025Sampled Jan 2026
≤ 5
0.025
Chromiumμg/l
1Sampled Jan 2026
≤ 50
1
Copperμg/l
8Sampled Jan 2026
≤ 2,000
0.4
Ironμg/l
10Sampled Jan 2026
≤ 200
10
Manganeseμg/l
1Sampled Jan 2026
≤ 50
1
Leadμg/l
0.5Sampled Jan 2026
≤ 10
0.025
Nickelμg/l
1Sampled Jan 2026
≤ 20
1
Seleniumμg/l
9 ● (Near the limit)Sampled Jan 2026
≤ 10
9 ●
Sodiummg/l
9.9Sampled Jan 2026
≤ 200
9.9
Chlorine by-products
Chlorine by-products
Parameter
Unfiltered tap water
Allowed range
Filtered
Trichloroethyleneμg/l
0.15Sampled Jan 2026
No limit
0.008
Total Trihalomethanesμg/l
1.32Sampled Jan 2026
≤ 100
0.066
Haloacetic acids
Haloacetic acids
Parameter
Unfiltered tap water
Allowed range
Filtered
Total haloacetic acidsμg/l
6Sampled Jan 2026
≤ 60
0.3
Pesticides
Pesticides
Parameter
Unfiltered tap water
Allowed range
Filtered
Heptachlorug/L
0.01Sampled Jan 2026
≤ 0.4
0.01
Total pesticidesug/L
0.026Sampled Jan 2026
≤ 0.5
0.026
Herbicides
Herbicides
Parameter
Unfiltered tap water
Allowed range
Filtered
D 2 4ug/L
0.06Sampled Jan 2026
≤ 70
0.06
Atrazineug/L
0.02Sampled Jan 2026
≤ 3
0.02
Perfluorinated chemicals
Perfluorinated chemicals
Parameter
Unfiltered tap water
Allowed range
Filtered
PFOAug/L
0.001Sampled Jan 2026
No limit
0.001
PFOSug/L
0.001Sampled Jan 2026
No limit
0.001
PFNAug/L
0.001Sampled Jan 2026
No limit
0.001
Total PFASug/L
0.071Sampled Jan 2026
≤ 0.1
0.007
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
14
No limit
14
Uraniumug/L
4Sampled Jan 2026
No limit
4
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.
