PFAS in La Roche-en-Brenil's tap water: under 2.5 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 2.5 ng/L, 5 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.
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 0.5 to 1 ng/L upward. None reached that limit, so their total is below 2.5 ng/L rather than zero.
checked on 25 November 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoropentanoïque (PFPEA) | 0.0089 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.0052 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.0022 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0005 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0005 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,002 µg/L |
None found. The lab sees nothing below 2.5 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for La Roche-en-Brenil
Get new PFAS results for La Roche-en-Brenil, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- 16.3 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 25 November 2025
- Water supplier
- SUEZ EAU FRANCE SAS - COTE D'OR
In La Roche-en-Brenil, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 25 November 2025. The total is below 2.5 ng/L, the sum of the detection limits and 5 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 16.3 ng/L (0.0163 µg/L), below the EU legal limit (100 ng/L). 2 checks since 12 February 2025: sum of 20 PFAS from 16.3 ng/L to 17.7 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in La Roche-en-Brenil
2 PFAS checks since 12 February 2025, from the published measurements.
“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 |
|---|---|---|
| < detection limit | 16.3 ng/L | |
| < 2.5 ng/L · calculated | 17.7 ng/L |
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 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 2.8 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <3 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.4 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <2 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 4 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <2 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.129 mg/L | ≤ 1.5 mg/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 | 7.8 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 8.9 °f | no limit | for reference |
| Electrical conductivity | 214 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 9.8 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 4.9 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 6.7 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 15 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,50 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in La Roche-en-Brenil safe to drink?
Yes. At the check on 12 January 2026, the tap water in La Roche-en-Brenil was within every limit tested. “La teneur en COT n'est pas conforme à la référence de qualité nécessit ant une optimisation du traitement et une adaptation à la qualité de l 'eau brute.”
How high are PFAS levels in La Roche-en-Brenil's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 16.3 ng/L. The EU limit is 100 ng/L, so this water is at 16 % of the limit. (below the EU limit)
Does the water in La Roche-en-Brenil 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 2.5 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 La Roche-en-Brenil'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 La Roche-en-Brenil?
The water hardness in La Roche-en-Brenil is 8.9 °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 La Roche-en-Brenil, so in principle the same water.
Nearby communes
The closest to La Roche-en-Brenil 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=21525
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- SESAM, R. DE CHENESAINT
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.