GLOS LA FERRIERE ECARTS · Saint-Evroult-Notre-Dame-du-Bois
SAEP DU PERCHER
Water safety
Water safety
Parameter
Unfiltered tap water
Allowed range
Filtered
Free Chlorinemg CL2/l
0.42
0.2 – 1
0.008 ▲
Total Chlorinemg CL2/l
0.45
No limit
0.09
General
General
Parameter
Unfiltered tap water
Allowed range
Filtered
TemperatureC
21
No limit
21
Hardnessmg CaCO3/l
270
80 – 459
270
Hardness fF
27
No limit
27
pH
7.7
6.5 – 9.5
7.7
TurbidityNTU
0.2
≤ 4
0.02
ConductivityμS / cm
517
≤ 2,500
517
TDSmg/l
330.9estimated
0 – 1,199
330.9
Alkalinitymg CaCO3/l
221
No limit
221
Bicarbonatemg HCO3/l
260Sampled Jan 2026
No limit
260
Pathogens
Pathogens
Parameter
Unfiltered tap water
Allowed range
Filtered
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 Jan 2026
≤ 50
0.5
Fluoridemg F/l
0.05Sampled Jan 2026
≤ 1.5
0.015
Mercuryμg Hg/l
0.05Sampled Jan 2026
≤ 1
0.005
Nitritesmg NO2/l
0.01
≤ 0.5
0.004
Nitratesmg NO3/l
7.8
≤ 50
2.34
Minerals
Minerals
Parameter
Unfiltered tap water
Allowed range
Filtered
Magnesiummg/l
4Sampled Jan 2026
No limit
4
Calciummg/l
84Sampled Jan 2026
No limit
84
Potassiummg/l
0.67Sampled Jan 2026
No limit
0.67
Chloridemg/l
18
≤ 250
18
Metals
Metals
Parameter
Unfiltered tap water
Allowed range
Filtered
Aluminiumμg/l
2Sampled Jan 2026
≤ 200
2
Antimonyμg/l
0.5Sampled Jan 2026
≤ 5
0.5
Arsenicμg/l
0.32Sampled Jan 2026
≤ 10
0.16
Bariumμg/l
23Sampled Jan 2026
≤ 1,000
23
Cadmiumμg/l
0.025Sampled Jan 2026
≤ 5
0.025
Chromiumμg/l
1Sampled Jan 2026
≤ 50
1
Ironμg/l
2.2Sampled Jan 2026
≤ 200
2.2
Manganeseμg/l
1Sampled Jan 2026
≤ 50
1
Leadμg/l
Not reported
≤ 10
—
Seleniumμg/l
1.5Sampled Jan 2026
≤ 10
1.5
Sodiummg/l
10Sampled Jan 2026
≤ 200
10
Chlorine by-products
Chlorine by-products
Parameter
Unfiltered tap water
Allowed range
Filtered
Trichloroethyleneμg/l
0.05Sampled Jan 2026
No limit
0.003
Total Trihalomethanesμg/l
7.2Sampled Mar 2026
≤ 100
0.36
Haloacetic acids
Haloacetic acids
Parameter
Unfiltered tap water
Allowed range
Filtered
Total haloacetic acidsμg/l
0.75Sampled Jan 2026
≤ 60
0.038
Pesticides
Pesticides
Parameter
Unfiltered tap water
Allowed range
Filtered
Heptachlorug/L
0.005Sampled Jan 2026
≤ 0.4
0.005
Total pesticidesug/L
0Sampled Jan 2026
≤ 0.5
0
Herbicides
Herbicides
Parameter
Unfiltered tap water
Allowed range
Filtered
D 2 4ug/L
0.02Sampled Jan 2026
≤ 70
0.02
Atrazineug/L
0.01Sampled Jan 2026
≤ 3
0.01
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
0Sampled Jan 2026
≤ 0.1
0
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
0.05
No limit
0.015
Sulfatemg/l
16
No limit
16
Uraniumug/L
0.71Sampled Jan 2026
No limit
0.71
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.
