PFAS in Tirepied-sur-Sée's tap water: under 4 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 4 ng/L, 8 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 Le Parc, on the same distribution network as Tirepied-sur-Sée (LA CALUSIERE). 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 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.
checked on 21 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorohexanoïque (PFHXA) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0020 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0010 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Tirepied-sur-Sée
Get new PFAS results for Tirepied-sur-Sée, 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
- 21 May 2026
- Water supplier
- SMPGA - REGIE
In Tirepied-sur-Sée, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 21 May 2026. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <SEUIL µg/L, below the EU legal limit (100 ng/L). Sampled in Le Parc, on the same network. 8 checks since 9 January 2025: sum of 20 PFAS up to 6.9 ng/L, sometimes 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 Tirepied-sur-Sée
8 PFAS checks since 9 January 2025, from the published measurements. Samples from 5 communes on the same network: it's the same water, so each one applies to Tirepied-sur-Sée. Samples come from 3 distribution networks. The trend refers to the network “AVRANCHES EST”.
“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 | Network |
|---|---|---|---|---|
| < 4 ng/L · calculated | < detection limit | Le Parc | LA CALUSIERE | |
| 1.9 ng/L – < 4.9 ng/L · calculated | 1.9 ng/L | Avranches | AVRANCHES EST | |
| < 4 ng/L · calculated | < detection limit | Chavoy | CHAVOY | |
| < 4 ng/L · calculated | 6.9 ng/L | Saint-Aubin-de-Terregatte | AVRANCHES EST | |
| < 4 ng/L · calculated | < detection limit | Le Luot | LA CALUSIERE | |
| < 4 ng/L · calculated | < detection limit | Saint-Aubin-de-Terregatte | AVRANCHES EST | |
| < 6 ng/L · calculated | < detection limit | Chavoy | CHAVOY | |
| < 6 ng/L · calculated | < detection limit | Saint-Aubin-de-Terregatte | AVRANCHES EST |
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.
Values to watch
These results are close to their legal limit, or over it.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 27.3 mg/L | ≤ 50 mg/L | within the limit |
See all 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 27.3 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Cadmium | 0.17 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 | 7.1 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 6.5 °f | no limit | for reference |
| Electrical conductivity | 223 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 21 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 8 mg/L | ≤ 250 mg/L | within the limit |
| Iron | 5.1 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Tirepied-sur-Sée safe to drink?
All the values shown here (21 May 2026) are within the legal limits, but the authorities have not published an overall verdict for this water. “Ce prélèvement a été réalisé à la suite du résultat de pH observé le 13/05/2026, lequel confirme un retour à la conformité du paramètre pH.”
How high are PFAS levels in Tirepied-sur-Sée's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at –. The EU limit is 100 ng/L, so this water is at – of the limit. (below the EU limit)
Does the water in Tirepied-sur-Sée also meet the strictest limits in Europe?
As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.
Are PFAS levels rising in Tirepied-sur-Sée'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 Tirepied-sur-Sée?
The water hardness in Tirepied-sur-Sée is 6.5 °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 12 September 2026.
Same water network
Same distribution network as Tirepied-sur-Sée, so in principle the same water.
Nearby communes
The closest to Tirepied-sur-Sée 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=50597
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- AVRANCHES EST, CHAVOY, LA CALUSIERE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.