PFAS in Rouperroux's tap water: under 4 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
None of the 4 most harmful 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 Carrouges, on the same distribution network as Rouperroux (CARROUGES). 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 9 February 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | 0.0011 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0010 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0020 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0010 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0020 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0010 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0010 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,0010 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0050 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0010 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <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 Rouperroux
Get new PFAS results for Rouperroux, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- 1.1 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 9 February 2026
- Water supplier
- CEO - ARGENTAN
In Rouperroux, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 9 February 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: 1.1 ng/L (0.0011 µg/L), below the EU legal limit (100 ng/L). Sampled in Carrouges, on the same network. 2 checks since 18 June 2025: sum of 20 PFAS up to 1.1 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 Rouperroux
2 PFAS checks since 18 June 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Rouperroux.
“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 |
|---|---|---|---|
| < 4 ng/L · calculated | 1.1 ng/L | Carrouges | |
| < 4 ng/L · calculated | < detection limit | L'Orée-d'Écouves |
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.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: Electrical conductivity 177 µS/cm on 7 April 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Electrical conductivity | 177 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 11 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Cadmium | 0.027 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1,0 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 | 6.2 °f | no limit | for reference |
| Electrical conductivity | 177 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 12 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 2.1 mg/L | ≤ 250 mg/L | within the limit |
| Iron | 5.5 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.28 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Rouperroux safe to drink?
Yes. At the check on 7 April 2026, the tap water in Rouperroux was within every limit tested. Outside a reference value: Electrical conductivity 177 µS/cm on 7 April 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Eau d'alimentation conforme aux limites et références de qualité bactériologique en vigueur pour les paramètres recherchés. Eau d'alimentation conforme aux limites de qualité physico-chimique en vigueur pour les paramètres recherchés. Cependant, eau ne satisfaisant pas aux références de qualité physico-chimique en vigueur en raison de la conductivité à 25°C qui est inférieure à la valeur limite minimale fixée par la réglementation. Prendre toutes les dispositions nécessaires afin de ramener la conductivité à 25°C à une valeur supérieure à la valeur limite minimale réglementaire.”
How high are PFAS levels in Rouperroux's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 1.1 ng/L. The EU limit is 100 ng/L, so this water is at 1 % of the limit. (below the EU limit)
Does the water in Rouperroux 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 Rouperroux'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 Rouperroux?
The water hardness in Rouperroux is 6.2 °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 Rouperroux, so in principle the same water.
Nearby communes
The closest to Rouperroux 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=61357
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- CARROUGES
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.