PFAS in Marpiré's tap water: between 0.47 and 3.47 ng/L
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
PFAS-4 found at a low level
0.47 ng/L of PFAS-4 was found. The other substances were below the lab's detection limit, so the true total sits between 0.47 ng/L and 3.47 ng/L. Our benchmark of 0.5 ng/L falls inside that range, so the check cannot settle it.
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 La Bouëxière, on the same distribution network as Marpiré (EAU PORTES BRETAGNE_BILLERIE/GRANGE_BOUEXIERE). 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).
checked on 8 April 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorohexanoïque (PFHXA) | 0.0012 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.0005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.0005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0010 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0010 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,00040 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,00040 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,00040 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,00040 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,00040 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,00040 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0050 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0050 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,00040 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0010 µg/L |
Some PFAS found. The test cannot say if the water is above or below our 0.5 ng/L benchmark.
Water report for Marpiré
Get new PFAS results for Marpiré, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- 2.15 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 8 April 2026
- Water supplier
- VEOLIA ILLE ET VILAINE SUD
In Marpiré, the 4 most closely watched PFAS (PFAS-4) add up to between 0.47 ng/L and 3.47 ng/L at the latest PFAS check on 8 April 2026, because some were below the detection limit. Our 0.5 ng/L benchmark falls inside that range, so there's no verdict. Sum of 20 PFAS: 2.15 ng/L (0.0022 µg/L), below the EU legal limit (100 ng/L). Sampled in La Bouëxière, on the same network. 6 checks since 14 April 2025: PFAS-4 up to 1.8 ng/L, sometimes below the detection limit, averaging at least 0.38 ng/L over 12 months (non-detects as 0). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Marpiré
7 PFAS checks since 25 March 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Marpiré.
“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 |
|---|---|---|---|
| 0.47 ng/L | 2.15 ng/L | La Bouëxière | |
| < detection limit | 1 ng/L | Vitré | |
| < detection limit | < detection limit | Vitré | |
| < detection limit | < detection limit | Vitré | |
| < detection limit | < detection limit | Vitré | |
| 1.8 ng/L | 1.8 ng/L | Vitré | |
| < 3.4 ng/L · calculated | < detection limit | Vitré |
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
At the latest check, the water was within every limit tested.
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 6.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,02 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <1,0 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.0388 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 2 µg/L | ≤ 20 µg/L | within the limit |
| Cadmium | <0,025 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1,0 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 | 8.1 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 19.7 °f | no limit | for reference |
| Electrical conductivity | 497 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 63 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 64.2 mg/L | ≤ 250 mg/L | within the limit |
| Iron | <20 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,20 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Marpiré safe to drink?
Yes. At the check on 23 July 2026, the tap water in Marpiré was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in Marpiré's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 2.15 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 Marpiré 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 0.47 ng/L stays below.
Are PFAS levels rising in Marpiré's tap water?
Too few quantified checks to say (2 since 25 March 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.
How hard is the water in Marpiré?
The water hardness in Marpiré is 19.7 °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 21 September 2026.
Same water network
Same distribution network as Marpiré, so in principle the same water.
Nearby communes
The closest to Marpiré 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=35166
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- EAU PORTES BRETAGNE_BILLERIE/GRANGE_BOUEXIERE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.