PFAS in the tap water of Saint-Gilles (Manche): 1.6 ng/L, 3.2x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
3.2× above our health benchmark
0.5 ng/L is our benchmark, not an official limit. Same EFSA method as Sweden, Denmark and the Netherlands, but stricter. It's a yearly average, compared here with the latest check.
Sample taken in Saint-Lô, on the same distribution network as Saint-Gilles (ST GILLES-HEBECREVON). The health authority samples one tap per network; a network carries the same treated water everywhere.
More about this result
The US also limits PFOA and PFOS to 4 ng/L each, per substance.
Substances below the detection limit count as 0, so the real total may be higher.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
More PFAS than in 85% of the cities we track
checked on 31 March 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoro-octanoïque (PFOA) | 0.0016 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0010 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0010 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0010 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0020 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0010 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0010 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0050 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 1.6 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 31 March 2026
- Water supplier
- VEOLIA EAU - CENTRE MANCHE
In Saint-Gilles, the 4 most closely watched PFAS (PFAS-4) add up to 1.6 ng/L (0.0016 µg/L) at the latest PFAS check on 31 March 2026. That's 3.2 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 1.6 ng/L (0.0016 µg/L), below the EU legal limit (100 ng/L). Sampled in Saint-Lô, on the same network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Saint-Gilles
A single PFAS check has been published for Saint-Gilles so far (31 March 2026). A history will build up with the next checks; this page is refreshed weekly.
What the latest check found
At the latest check, the water was within every limit tested.
See all 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 8.5 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Cadmium | <0,025 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1 µg/L | ≤ 50 µg/L | within the limit |
| Escherichia coli | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 8.2 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 13.4 °f | no limit | for reference |
| Electrical conductivity | 489 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 57 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 63 mg/L | ≤ 250 mg/L | within the limit |
| Iron | 10.4 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,10 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Saint-Gilles safe to drink?
Yes. At the check on 16 July 2026, the tap water in Saint-Gilles was within every limit tested. “Eau d'alimentation conforme aux limites de qualité pour l'ensemble des paramètres mesurés. Il est à noter la présence de germes aérobies revivifiables à 22°C en grand nombre.”
How high are PFAS levels in Saint-Gilles's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 1.6 ng/L. The EU limit is 100 ng/L, so this water is at 2 % of the limit. (below the EU limit)
Does the water in Saint-Gilles also meet the strictest limits in Europe?
Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 1.6 ng/L stays below.
How hard is the water in Saint-Gilles?
The water hardness in Saint-Gilles is 13.4 °f (soft). This mainly matters for household appliances and detergent dosing, not for health.
Where does this data come from?
All values come from official publications: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM). Retrieved on 21 September 2026.
Same water network
Same distribution network as Saint-Gilles, so in principle the same water.
Nearby communes
The closest to Saint-Gilles on this site.
Data source
- Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM)
- https://hubeau.eaufrance.fr/api/v1/qualite_eau_potable/resultats_dis?code_commune=50483
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- ST GILLES-HEBECREVON
Water report for Saint-Gilles
Get new PFAS results for Saint-Gilles, with a short explanation. At most one update a week, only when there's something new.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.