ST BONNET LE COURREAU CHAVANNE · Saint-Bonnet-le-Courreau
CA LOIRE FOREZ AGGLOMÉRATION
Water safety
Water safety
Parameter
Unfiltered tap water
Allowed range
Filtered
Free Chlorinemg CL2/l
0.03 ▲ (Outside the range)
0.2 – 1
0.001 ▲
Total Chlorinemg CL2/l
0.03
No limit
0.006
General
General
Parameter
Unfiltered tap water
Allowed range
Filtered
TemperatureC
15.6
No limit
15.6
Hardnessmg CaCO3/l
193
80 – 459
193
Hardness fF
19.3
No limit
19.3
pH
7.9
6.5 – 9.5
7.9
TurbidityNTU
0.12
≤ 4
0.012
ColorColor Units
5
≤ 15
5
ConductivityμS / cm
158
≤ 2,500
158
TDSmg/l
101.1estimated
0 – 1,199
101.1
Alkalinitymg CaCO3/l
50.5
No limit
50.5
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
0.05Sampled Aug 2025
≤ 1.5
0.015
Mercuryμg Hg/l
0.01Sampled Aug 2025
≤ 1
0.001
Nitritesmg NO2/l
0.01
≤ 0.5
0.004
Nitratesmg NO3/l
12.4
≤ 50
3.72
Minerals
Minerals
Parameter
Unfiltered tap water
Allowed range
Filtered
Magnesiummg/l
1.7
No limit
1.7
Calciummg/l
74.4
No limit
74.4
Potassiummg/l
1.4Sampled Aug 2025
No limit
1.4
Chloridemg/l
9.5
≤ 250
9.5
Metals
Metals
Parameter
Unfiltered tap water
Allowed range
Filtered
Aluminiumμg/l
10Sampled Aug 2025
≤ 200
10
Antimonyμg/l
1Sampled Feb 2025
≤ 5
1
Arsenicμg/l
2Sampled Aug 2025
≤ 10
1
Bariumμg/l
12Sampled Aug 2025
≤ 1,000
12
Cadmiumμg/l
1Sampled Feb 2025
≤ 5
1
Chromiumμg/l
5Sampled Feb 2025
≤ 50
5
Ironμg/l
20Sampled Aug 2025
≤ 200
20
Manganeseμg/l
10Sampled Aug 2025
≤ 50
10
Leadμg/l
Not reported
≤ 10
—
Seleniumμg/l
2Sampled Aug 2025
≤ 10
2
Sodiummg/l
6Sampled Aug 2025
≤ 200
6
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
2.22Sampled Aug 2025
≤ 100
0.11
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
0.01
No limit
0.003
Sulfatemg/l
9.3
No limit
9.3
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.
