PFAS in Saint-Cyr-des-Gâts's tap water: under 11 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
No PFAS detected
The lab sees nothing below 11 ng/L, 22 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.
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 L'Orbrie, on the same distribution network as Saint-Cyr-des-Gâts (RESERVOIR DU BOIS DE L'EPAUD). 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.
The lab detects each of the four substances from 2 to 5 ng/L upward. None reached that limit, so their total is below 11 ng/L rather than zero.
checked on 12 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,010 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,005 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,010 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,005 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,002 µg/L |
None found. The lab sees nothing below 11 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Saint-Cyr-des-Gâts
Get new PFAS results for Saint-Cyr-des-Gâts, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
- Last PFAS test
- 12 May 2026
- Water supplier
- SAUR
In Saint-Cyr-des-Gâts, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 12 May 2026. The total is below 11 ng/L, the sum of the detection limits and 22 times our 0.5 ng/L benchmark. Sum of 20 PFAS: not detected, below the EU legal limit (100 ng/L). Sampled in L'Orbrie, on the same network. 8 checks since 5 May 2025, sum of 20 PFAS always below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Saint-Cyr-des-Gâts
8 PFAS checks since 5 May 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Saint-Cyr-des-Gâts.
“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at |
|---|---|---|---|
| < 11 ng/L · calculated | 0 ng/L | L'Orbrie | |
| < 11 ng/L · calculated | 0 ng/L | L'Orbrie | |
| < 11 ng/L · calculated | 0 ng/L | L'Orbrie | |
| < 11 ng/L · calculated | 0 ng/L | Saint-Martin-des-Fontaines | |
| < 11 ng/L · calculated | 0 ng/L | L'Orbrie | |
| < 11 ng/L · calculated | 0 ng/L | Saint-Martin-des-Fontaines | |
| < 11 ng/L · calculated | 0 ng/L | Saint-Martin-des-Fontaines | |
| < 11 ng/L · calculated | 0 ng/L | L'Orbrie |
Calculated values: “<” is an upper bound from published thresholds, “≥” a lower bound, “–” means no published sum or complete measurement. How to read a PFAS result
What the latest check found
The authorities have not published an overall verdict for this water.
See all 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 19 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Cadmium | <0,5 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within the limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 7.9 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 19.5 °f | no limit | for reference |
| Electrical conductivity | 478 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 45 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 27 mg/L | ≤ 250 mg/L | within the limit |
| Iron | 39.1 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.4 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Saint-Cyr-des-Gâts safe to drink?
All the values shown here (29 June 2026) are within the legal limits, but the authorities have not published an overall verdict for this water. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in Saint-Cyr-des-Gâts's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was reported as not detected; the laboratory did not state its reporting limit. The EU limit is 100 ng/L. (below the EU limit)
Does the water in Saint-Cyr-des-Gâts also meet the strictest limits in Europe?
The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 11 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.
Are PFAS levels rising in Saint-Cyr-des-Gâts's tap water?
Calculated PFAS-4 values are listed in the table. The chart uses laboratory-published sum-of-20 results; there are too few laboratory-published PFAS-4 sums for the existing trend calculation.
How hard is the water in Saint-Cyr-des-Gâts?
The water hardness in Saint-Cyr-des-Gâts is 19.5 °f (medium). 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 12 September 2026.
Same water network
Same distribution network as Saint-Cyr-des-Gâts, so in principle the same water.
Nearby communes
The closest to Saint-Cyr-des-Gâts 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=85205
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- RESERVOIR DU BOIS DE L'EPAUD
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.